Merge pull request #3563 from lewurm/interpreter
authorRodrigo Kumpera <kumpera@users.noreply.github.com>
Thu, 12 Jan 2017 17:46:05 +0000 (09:46 -0800)
committerGitHub <noreply@github.com>
Thu, 12 Jan 2017 17:46:05 +0000 (09:46 -0800)
reviving interpreter

17 files changed:
configure.ac
mono/mini/.gitignore
mono/mini/Makefile.am.in
mono/mini/driver.c
mono/mini/interpreter/embed.h [new file with mode: 0644]
mono/mini/interpreter/hacks.h [new file with mode: 0644]
mono/mini/interpreter/interp.c [new file with mode: 0644]
mono/mini/interpreter/interp.h [new file with mode: 0644]
mono/mini/interpreter/mintops.c [new file with mode: 0644]
mono/mini/interpreter/mintops.def [new file with mode: 0644]
mono/mini/interpreter/mintops.h [new file with mode: 0644]
mono/mini/interpreter/transform.c [new file with mode: 0644]
mono/mini/mini-runtime.c
mono/mini/mini.h
mono/mini/tramp-amd64.c
scripts/ci/run-jenkins.sh
scripts/ci/run-test-interpreter.sh [new file with mode: 0755]

index 9b1f7fae5ba29bf3a5e62ab06bf780ff033758ec..c280b3434199f2d935f9965540fe652f24ad041b 100644 (file)
@@ -3528,6 +3528,15 @@ if test "x$have_deprecated" = "xyes"; then
    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
 fi
 
+AC_ARG_WITH(interpreter, [  --with-interpreter=yes|no       Interpreter, default=no],[buildinterpreter=$with_interpreter],[buildinterpreter=no])
+if test "x$buildinterpreter" = "xyes"; then
+    AC_DEFINE(ENABLE_INTERPRETER, 1, [Enable interpreter in the runtime.])
+    AC_MSG_NOTICE([Enable interpreter in the runtime.])
+fi
+
+AM_CONDITIONAL([ENABLE_INTERPRETER], [test x$buildinterpreter != xno])
+
+
 dnl 
 dnl Simple Generational checks (sgen)
 dnl
@@ -4508,6 +4517,7 @@ echo "
        BigArrays:     $enable_big_arrays
        DTrace:        $enable_dtrace
        LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
+       Interpreter:   $buildinterpreter
 
    Libraries:
        .NET 4.x:        $with_profile4_x
index 8cc6e1d051e42ac9465eed8df37431de3dd22991..f53010594c79435c74b13c06bd545ee30d87ddff 100644 (file)
@@ -8,6 +8,7 @@
 /*.dll
 /*.mdb
 /*.lo
+/interpreter/*.lo
 /*.loT
 /*.la
 /.libs
index 2dd510670a4489e03a1c8224f34470b07d1d2d4d..52740608a9862a14775b2deee1cba8d91afb642e 100755 (executable)
@@ -47,6 +47,7 @@ RUNTIME_EXECUTABLE = $(if $(BOEHM),$(top_builddir)/mono/mini/mono-boehm,$(top_bu
 
 MINI_RUNTIME = MONO_PATH=$(CLASS) $(RUNTIME_EXECUTABLE)
 TOOLS_RUNTIME = MONO_PATH=$(mcs_topdir)/class/lib/build $(top_builddir)/runtime/mono-wrapper
+INTERPRETER_RUNTIME = $(MINI_RUNTIME) --interpreter
 RUNTIME_AOTCHECK = MONO_PATH="$(CLASS)$(PLATFORM_PATH_SEPARATOR)." $(RUNTIME_EXECUTABLE)
 
 MCS = CSC_SDK_PATH_DISABLED= $(TOOLS_RUNTIME) $(CSC) -unsafe -nowarn:0162 -nologo -noconfig -r:$(CLASS)/mscorlib.dll -r:$(CLASS)/System.dll -r:$(CLASS)/System.Core.dll
@@ -390,6 +391,17 @@ llvm_sources = \
 endif
 endif
 
+if ENABLE_INTERPRETER
+interpreter_sources =  \
+       interpreter/hacks.h             \
+       interpreter/interp.h    \
+       interpreter/interp.c    \
+       interpreter/mintops.h   \
+       interpreter/mintops.def \
+       interpreter/mintops.c   \
+       interpreter/transform.c
+endif
+
 if ENABLE_LLVM
 llvm_runtime_sources = \
        llvm-runtime.cpp
@@ -491,6 +503,7 @@ test_sources =                      \
 
 
 regtests_UNIVERSAL=basic.exe basic-float.exe basic-long.exe basic-calls.exe objects.exe arrays.exe basic-math.exe exceptions.exe iltests.exe devirtualization.exe generics.exe basic-simd.exe basic-vectors.exe
+iregtests=basic.exe basic-float.exe basic-long.exe basic-calls.exe
 
 if INSTALL_TESTING_AOT_FULL
 regtests= \
@@ -592,7 +605,7 @@ os_sources = $(darwin_sources) $(posix_sources)
 monobin_platform_ldflags=-framework CoreFoundation -framework Foundation
 endif
 
-libmini_la_SOURCES = $(common_sources) $(llvm_sources) $(llvm_runtime_sources) $(arch_sources) $(os_sources)
+libmini_la_SOURCES = $(common_sources) $(llvm_sources) $(llvm_runtime_sources) $(interpreter_sources) $(arch_sources) $(os_sources)
 libmini_la_CFLAGS = $(mono_CFLAGS)
 
 libmonoboehm_2_0_la_SOURCES =
@@ -716,6 +729,9 @@ rcheck-nunit: mono $(regtests)
 rcheck: mono $(regtests)
        $(MINI_RUNTIME) --regression $(regtests)
 
+richeck: mono $(iregtests)
+       $(INTERPRETER_RUNTIME) --regression $(iregtests)
+
 if ARM
 check-seq-points:
 else
index 02c2ca8681689e9dc23ad3a68a86466e7a5a1f8a..382246ff84bb7079ef90967c1f75fac7dffaa9f6 100644 (file)
@@ -58,6 +58,7 @@
 #include "mini.h"
 #include "jit.h"
 #include "aot-compiler.h"
+#include "interpreter/interp.h"
 
 #include <string.h>
 #include <ctype.h>
@@ -1919,6 +1920,11 @@ mono_main (int argc, char* argv[])
 #endif
                } else if (strcmp (argv [i], "--nollvm") == 0){
                        mono_use_llvm = FALSE;
+#ifdef ENABLE_INTERPRETER
+               } else if (strcmp (argv [i], "--interpreter") == 0) {
+                       mono_use_interpreter = TRUE;
+#endif
+
 #ifdef __native_client__
                } else if (strcmp (argv [i], "--nacl-mono-path") == 0){
                        nacl_mono_path = g_strdup(argv[++i]);
@@ -2048,6 +2054,11 @@ mono_main (int argc, char* argv[])
        }
 
        mono_set_defaults (mini_verbose, opt);
+#if ENABLE_INTERPRETER
+       if (mono_use_interpreter)
+               domain = mono_interp_init (argv [i]);
+       else
+#endif
        domain = mini_init (argv [i], forced_version);
 
        mono_gc_set_stack_end (&domain);
@@ -2071,6 +2082,17 @@ mono_main (int argc, char* argv[])
        case DO_SINGLE_METHOD_REGRESSION:
                mono_do_single_method_regression = TRUE;
        case DO_REGRESSION:
+#ifdef ENABLE_INTERPRETER
+               if (mono_use_interpreter) {
+                       if (interp_regression_list (2, argc -i, argv + i)) {
+                               g_print ("Regression ERRORS!\n");
+                               // mini_cleanup (domain);
+                               return 1;
+                       }
+                       // mini_cleanup (domain);
+                       return 0;
+               }
+#endif
                if (mini_regression_list (mini_verbose, argc -i, argv + i)) {
                        g_print ("Regression ERRORS!\n");
                        mini_cleanup (domain);
@@ -2103,6 +2125,10 @@ mono_main (int argc, char* argv[])
                aname = argv [i];
                break;
        default:
+#ifdef ENABLE_INTERPRETER
+               if (mono_use_interpreter)
+                       g_error ("not yet");
+#endif
                if (argc - i < 1) {
                        mini_usage ();
                        mini_cleanup (domain);
diff --git a/mono/mini/interpreter/embed.h b/mono/mini/interpreter/embed.h
new file mode 100644 (file)
index 0000000..b3a5449
--- /dev/null
@@ -0,0 +1,15 @@
+#include <mono/metadata/object.h>
+#include <mono/metadata/appdomain.h>
+
+int
+mono_main (int argc, char* argv[]);
+
+MonoDomain *
+mono_interp_init(const char *file);
+
+int
+mono_interp_exec(MonoDomain *domain, MonoAssembly *assembly, int argc, char *argv[]);
+
+void        
+mono_interp_cleanup(MonoDomain *domain);
+
diff --git a/mono/mini/interpreter/hacks.h b/mono/mini/interpreter/hacks.h
new file mode 100644 (file)
index 0000000..9697ccb
--- /dev/null
@@ -0,0 +1,153 @@
+/* we need some special math function */
+#ifndef _ISOC99_SOURCE
+#define _ISOC99_SOURCE
+#endif
+#include <math.h>
+
+/* which are not defined on FreeBSD */
+#ifdef __GNUC__
+
+#ifndef isunordered
+#   define isunordered(u, v)                              \
+    (__extension__                                        \
+     ({ __typeof__(u) __u = (u); __typeof__(v) __v = (v); \
+        isnan(__u) || isnan(__v); }))
+#endif
+
+#ifndef islessgreater
+#   define islessgreater(x, u)                                    \
+    (__extension__                                                \
+     ({ __typeof__(x) __x = (x); __typeof__(y) __y = (y);         \
+        !isunordered (__x, __y) && (__x < __y) || (__y < __x); }))
+#endif
+
+#ifndef islessequal
+#   define islessequal(x, y)                              \
+    (__extension__                                        \
+     ({ __typeof__(x) __x = (x); __typeof__(y) __y = (y); \
+        !isunordered(__x, __y) && __x <= __y; })) 
+#endif
+
+#ifndef isless
+#   define isless(x, y)                                   \
+    (__extension__                                        \
+     ({ __typeof__(x) __x = (x); __typeof__(y) __y = (y); \
+        !isunordered(__x, __y) && __x < __y; })) 
+#endif
+
+#ifndef isgreater
+#   define isgreater(x, y)                                \
+    (__extension__                                        \
+     ({ __typeof__(x) __x = (x); __typeof__(y) __y = (y); \
+        !isunordered(__x, __y) && __x > __y; }))
+#endif
+
+#else
+
+/*  isunordered seems to crash on HPUX when built 64 bits
+    so use generic implementation.
+*/
+#if defined(__hpux) && SIZEOF_VOID_P == 8
+#undef isunordered
+#undef islessgreater
+#undef islessequal
+#undef isless
+#undef isgreater
+#endif
+
+#ifndef isunordered
+#   define isunordered(u, v) (isnan(u) || isnan(v))
+#endif
+
+#ifndef islessgreater
+#   define islessgreater(x, u) (!isunordered (x, y) && (x < y) || (y < x))
+#endif
+
+#ifndef islessequal
+#   define islessequal(x, y) (!isunordered(x, y) && x <= y)
+#endif
+
+#ifndef isless
+#   define isless(x, y) (!isunordered(x, y) && x < y) 
+#endif
+
+#ifndef isgreater
+#   define isgreater(x, y) (!isunordered(x, y) && x > y)
+#endif
+
+#endif
+
+/*
+ * Attempt at using the goto label construct of GNU GCC:
+ * it turns out this does give some benefit: 5-15% speedup.
+ * Don't look at these macros, it hurts...
+ */
+#define GOTO_LABEL
+#undef GOTO_LABEL
+#ifdef GOTO_LABEL
+
+#define SWITCH(a) goto *goto_map [(a)];
+#define BREAK SWITCH(*ip)
+#define CASE(l)        l ## _LABEL:
+#define DEFAULT        \
+       CEE_ILLEGAL_LABEL:      \
+       CEE_ENDMAC_LABEL:
+#define SUB_SWITCH \
+       CEE_PREFIX1_LABEL: \
+       CEE_ARGLIST_LABEL: \
+       CEE_CEQ_LABEL: \
+       CEE_CGT_LABEL: \
+       CEE_CGT_UN_LABEL: \
+       CEE_CLT_LABEL: \
+       CEE_CLT_UN_LABEL: \
+       CEE_LDFTN_LABEL: \
+       CEE_LDVIRTFTN_LABEL: \
+       CEE_UNUSED56_LABEL: \
+       CEE_LDARG_LABEL: \
+       CEE_LDARGA_LABEL: \
+       CEE_STARG_LABEL: \
+       CEE_LDLOC_LABEL: \
+       CEE_LDLOCA_LABEL: \
+       CEE_STLOC_LABEL: \
+       CEE_LOCALLOC_LABEL: \
+       CEE_UNUSED57_LABEL: \
+       CEE_ENDFILTER_LABEL: \
+       CEE_UNALIGNED__LABEL: \
+       CEE_VOLATILE__LABEL: \
+       CEE_TAIL__LABEL: \
+       CEE_INITOBJ_LABEL: \
+       CEE_UNUSED68_LABEL: \
+       CEE_CPBLK_LABEL: \
+       CEE_INITBLK_LABEL: \
+       CEE_UNUSED69_LABEL: \
+       CEE_RETHROW_LABEL: \
+       CEE_UNUSED_LABEL: \
+       CEE_SIZEOF_LABEL: \
+       CEE_REFANYTYPE_LABEL: \
+       CEE_UNUSED52_LABEL: \
+       CEE_UNUSED53_LABEL: \
+       CEE_UNUSED54_LABEL: \
+       CEE_UNUSED55_LABEL: \
+       CEE_UNUSED70_LABEL:
+#define GOTO_LABEL_VARS \
+       const static void * const goto_map [] = {\
+#define OPDEF(a,b,c,d,e,f,g,h,i,j) \   \
+       && a ## _LABEL, \
+#include "mono/cil/opcode.def" \
+#undef OPDEF   \
+       &&DUMMY_LABEL   \
+       };      \
+       DUMMY_LABEL:
+
+#else
+       
+#define SWITCH(a) switch(a)
+#define BREAK  break
+#define CASE(l)        case l:
+#define DEFAULT        \
+               default:        \
+                       g_error ("Unimplemented opcode: %x at 0x%x\n", *ip, ip-header->code);
+#define SUB_SWITCH case 0xFE:
+#define GOTO_LABEL_VARS
+
+#endif
diff --git a/mono/mini/interpreter/interp.c b/mono/mini/interpreter/interp.c
new file mode 100644 (file)
index 0000000..ecde202
--- /dev/null
@@ -0,0 +1,4829 @@
+/*
+ * PLEASE NOTE: This is a research prototype.
+ *
+ *
+ * interp.c: Interpreter for CIL byte codes
+ *
+ * Authors:
+ *   Paolo Molaro (lupus@ximian.com)
+ *   Miguel de Icaza (miguel@ximian.com)
+ *   Dietmar Maurer (dietmar@ximian.com)
+ *
+ * (C) 2001, 2002 Ximian, Inc.
+ */
+#ifndef __USE_ISOC99
+#define __USE_ISOC99
+#endif
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <glib.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <math.h>
+#include <locale.h>
+
+#include <mono/utils/gc_wrapper.h>
+
+#ifdef HAVE_ALLOCA_H
+#   include <alloca.h>
+#else
+#   ifdef __CYGWIN__
+#      define alloca __builtin_alloca
+#   endif
+#endif
+
+/* trim excessive headers */
+#include <mono/metadata/image.h>
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/cil-coff.h>
+#include <mono/metadata/mono-endian.h>
+#include <mono/metadata/tabledefs.h>
+#include <mono/metadata/tokentype.h>
+#include <mono/metadata/loader.h>
+#include <mono/metadata/threads.h>
+#include <mono/metadata/threadpool.h>
+#include <mono/metadata/profiler-private.h>
+#include <mono/metadata/appdomain.h>
+#include <mono/metadata/reflection.h>
+#include <mono/metadata/reflection-internals.h>
+#include <mono/metadata/exception.h>
+#include <mono/metadata/verify.h>
+#include <mono/metadata/opcodes.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/mono-config.h>
+#include <mono/metadata/marshal.h>
+#include <mono/metadata/environment.h>
+#include <mono/metadata/mono-debug.h>
+
+#include "interp.h"
+#include "mintops.h"
+#include "embed.h"
+#include "hacks.h"
+
+#include <mono/mini/mini.h>
+
+
+/* Mingw 2.1 doesnt need this any more, but leave it in for now for older versions */
+#ifdef _WIN32
+#define isnan _isnan
+#define finite _finite
+#endif
+#ifndef HAVE_FINITE
+#ifdef HAVE_ISFINITE
+#define finite isfinite
+#endif
+#endif
+
+static gint *abort_requested;
+
+int mono_interp_traceopt = 0;
+
+#define INIT_FRAME(frame,parent_frame,obj_this,method_args,method_retval,domain,mono_method,error)     \
+       do {    \
+               (frame)->parent = (parent_frame);       \
+               (frame)->obj = (obj_this);      \
+               (frame)->stack_args = (method_args);    \
+               (frame)->retval = (method_retval);      \
+               (frame)->runtime_method = mono_interp_get_runtime_method ((domain), (mono_method), (error));    \
+               (frame)->ex = NULL;     \
+               (frame)->ip = NULL;     \
+               (frame)->invoke_trap = 0;       \
+       } while (0)
+
+void ves_exec_method (MonoInvocation *frame);
+
+static char* dump_stack (stackval *stack, stackval *sp);
+static char* dump_frame (MonoInvocation *inv);
+static MonoArray *get_trace_ips (MonoDomain *domain, MonoInvocation *top);
+static void ves_exec_method_with_context (MonoInvocation *frame, ThreadContext *context);
+
+typedef void (*ICallMethod) (MonoInvocation *frame);
+
+static guint32 die_on_exception = 0;
+static MonoNativeTlsKey thread_context_id;
+
+static char* dump_args (MonoInvocation *inv);
+
+#define DEBUG_INTERP 0
+#define COUNT_OPS 0
+#if DEBUG_INTERP
+/* If true, then we output the opcodes as we interpret them */
+static int global_tracing = 1;
+
+static int debug_indent_level = 0;
+
+static int break_on_method = 0;
+static int nested_trace = 0;
+static GList *db_methods = NULL;
+
+static void
+output_indent (void)
+{
+       int h;
+
+       for (h = 0; h < debug_indent_level; h++)
+               g_print ("  ");
+}
+
+static void
+db_match_method (gpointer data, gpointer user_data)
+{
+       MonoMethod *m = (MonoMethod*)user_data;
+       MonoMethodDesc *desc = data;
+
+       if (mono_method_desc_full_match (desc, m))
+               break_on_method = 1;
+}
+
+static void debug_enter (MonoInvocation *frame, int *tracing)
+{
+       if (db_methods) {
+               g_list_foreach (db_methods, db_match_method, (gpointer)frame->runtime_method->method);
+               if (break_on_method)
+                       *tracing = nested_trace ? (global_tracing = 2, 3) : 2;
+               break_on_method = 0;
+       }
+       if (*tracing) {
+               MonoMethod *method = frame->runtime_method->method;
+               char *mn, *args = dump_args (frame);
+               debug_indent_level++;
+               output_indent ();
+               mn = mono_method_full_name (method, FALSE);
+               g_printerr ("(0x%08x) Entering %s (", mono_thread_internal_current (), mn);
+               g_free (mn);
+               g_printerr  ("%s)\n", args);
+               g_free (args);
+       }
+       if (mono_profiler_events & MONO_PROFILE_ENTER_LEAVE)
+               mono_profiler_method_enter (frame->runtime_method->method);
+}
+
+
+#define DEBUG_LEAVE()  \
+       if (tracing) {  \
+               char *mn, *args;        \
+               args = dump_retval (frame);     \
+               output_indent ();       \
+               mn = mono_method_full_name (frame->runtime_method->method, FALSE); \
+               g_printerr  ("(0x%08x) Leaving %s", mono_thread_internal_current (),  mn);      \
+               g_free (mn); \
+               g_printerr  (" => %s\n", args); \
+               g_free (args);  \
+               debug_indent_level--;   \
+               if (tracing == 3) global_tracing = 0; \
+       }       \
+       if (mono_profiler_events & MONO_PROFILE_ENTER_LEAVE)    \
+               mono_profiler_method_leave (frame->runtime_method->method);
+
+#else
+
+static void debug_enter (MonoInvocation *frame, int *tracing)
+{
+}
+#define DEBUG_LEAVE()
+
+#endif
+
+static void
+interp_ex_handler (MonoException *ex) {
+       MonoError error;
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       char *stack_trace;
+       if (context == NULL)
+               return;
+       stack_trace = dump_frame (context->current_frame);
+       ex->stack_trace = mono_string_new (mono_domain_get(), stack_trace);
+       g_free (stack_trace);
+       if (context->current_env == NULL || strcmp(ex->object.vtable->klass->name, "ExecutionEngineException") == 0) {
+               char *strace = mono_string_to_utf8_checked (ex->stack_trace, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               fprintf(stderr, "Nothing can catch this exception: ");
+               fprintf(stderr, "%s", ex->object.vtable->klass->name);
+               if (ex->message != NULL) {
+                       char *m = mono_string_to_utf8_checked (ex->message, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       fprintf(stderr, ": %s", m);
+                       g_free(m);
+               }
+               fprintf(stderr, "\n%s\n", strace);
+               g_free (strace);
+               if (ex->inner_ex != NULL) {
+                       ex = (MonoException *)ex->inner_ex;
+                       fprintf(stderr, "Inner exception: %s", ex->object.vtable->klass->name);
+                       if (ex->message != NULL) {
+                               char *m = mono_string_to_utf8_checked (ex->message, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                               fprintf(stderr, ": %s", m);
+                               g_free(m);
+                       }
+                       strace = mono_string_to_utf8_checked (ex->stack_trace, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       fprintf(stderr, "\n");
+                       fprintf(stderr, "%s\n", strace);
+                       g_free (strace);
+               }
+               /* wait for other threads to also collapse */
+               // Sleep(1000); // TODO: proper sleep
+               exit(1);
+       }
+       context->env_frame->ex = ex;
+       context->search_for_handler = 1;
+       longjmp (*context->current_env, 1);
+}
+
+static void
+ves_real_abort (int line, MonoMethod *mh,
+               const unsigned short *ip, stackval *stack, stackval *sp)
+{
+       MonoError error;
+       fprintf (stderr, "Execution aborted in method: %s::%s\n", mh->klass->name, mh->name);
+       fprintf (stderr, "Line=%d IP=0x%04lx, Aborted execution\n", line,
+                ip-(const unsigned short *)mono_method_get_header_checked (mh, &error)->code);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       g_print ("0x%04x %02x\n",
+                ip-(const unsigned short *)mono_method_get_header_checked (mh, &error)->code, *ip);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       if (sp > stack)
+               printf ("\t[%ld] 0x%08x %0.5f\n", sp-stack, sp[-1].data.i, sp[-1].data.f);
+}
+
+#define ves_abort() \
+       do {\
+               ves_real_abort(__LINE__, frame->runtime_method->method, ip, frame->stack, sp); \
+               THROW_EX (mono_get_exception_execution_engine (NULL), ip); \
+       } while (0);
+
+static gpointer
+interp_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target, MonoError *error)
+{
+       g_error ("FIXME: use domain and error");
+       // return mono_interp_get_runtime_method (mono_marshal_get_remoting_invoke_for_target (method, target));
+}
+
+static mono_mutex_t runtime_method_lookup_section;
+
+RuntimeMethod*
+mono_interp_get_runtime_method (MonoDomain *domain, MonoMethod *method, MonoError *error)
+{
+       RuntimeMethod *rtm;
+       mono_error_init (error);
+
+       mono_os_mutex_lock (&runtime_method_lookup_section);
+       if ((rtm = mono_internal_hash_table_lookup (&domain->jit_code_hash, method))) {
+               mono_os_mutex_unlock (&runtime_method_lookup_section);
+               return rtm;
+       }
+       rtm = mono_mempool_alloc (domain->mp, sizeof (RuntimeMethod));
+       memset (rtm, 0, sizeof (*rtm));
+       rtm->method = method;
+       rtm->param_count = mono_method_signature (method)->param_count;
+       rtm->hasthis = mono_method_signature (method)->hasthis;
+       rtm->valuetype = method->klass->valuetype;
+       mono_internal_hash_table_insert (&domain->jit_code_hash, method, rtm);
+       mono_os_mutex_unlock (&runtime_method_lookup_section);
+
+       return rtm;
+}
+
+static gpointer
+interp_create_trampoline (MonoDomain *domain, MonoMethod *method, MonoError *error)
+{
+       if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
+               method = mono_marshal_get_synchronized_wrapper (method);
+       return mono_interp_get_runtime_method (domain, method, error);
+}
+
+static inline RuntimeMethod*
+get_virtual_method (MonoDomain *domain, RuntimeMethod *runtime_method, MonoObject *obj)
+{
+       MonoMethod *m = runtime_method->method;
+       MonoError error;
+
+       if ((m->flags & METHOD_ATTRIBUTE_FINAL) || !(m->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
+               RuntimeMethod *ret = NULL;
+               if (obj->vtable->klass == mono_defaults.transparent_proxy_class) {
+                       ret = mono_interp_get_runtime_method (domain, mono_marshal_get_remoting_invoke (m), &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               } else if (m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
+                       ret = mono_interp_get_runtime_method (domain, mono_marshal_get_synchronized_wrapper (m), &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               } else {
+                       ret = runtime_method;
+               }
+               return ret;
+       }
+
+       int slot = mono_method_get_vtable_slot (m);
+       if (mono_class_is_interface (m->klass)) {
+               g_assert (obj->vtable->klass != m->klass);
+               /* TODO: interface offset lookup is slow, go through IMT instead */
+               slot += mono_class_interface_offset (obj->vtable->klass, m->klass);
+       }
+       MonoMethod *virtual_method = obj->vtable->klass->vtable [slot];
+       RuntimeMethod *virtual_runtime_method = mono_interp_get_runtime_method (domain, virtual_method, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       return virtual_runtime_method;
+}
+
+static void inline
+stackval_from_data (MonoType *type, stackval *result, char *data, gboolean pinvoke)
+{
+       if (type->byref) {
+               switch (type->type) {
+               case MONO_TYPE_OBJECT:
+               case MONO_TYPE_CLASS:
+               case MONO_TYPE_STRING:
+               case MONO_TYPE_ARRAY:
+               case MONO_TYPE_SZARRAY:
+                       break;
+               default:
+                       break;
+               }
+               result->data.p = *(gpointer*)data;
+               return;
+       }
+       switch (type->type) {
+       case MONO_TYPE_VOID:
+               return;
+       case MONO_TYPE_I1:
+               result->data.i = *(gint8*)data;
+               return;
+       case MONO_TYPE_U1:
+       case MONO_TYPE_BOOLEAN:
+               result->data.i = *(guint8*)data;
+               return;
+       case MONO_TYPE_I2:
+               result->data.i = *(gint16*)data;
+               return;
+       case MONO_TYPE_U2:
+       case MONO_TYPE_CHAR:
+               result->data.i = *(guint16*)data;
+               return;
+       case MONO_TYPE_I4:
+               result->data.i = *(gint32*)data;
+               return;
+       case MONO_TYPE_U:
+       case MONO_TYPE_I:
+               result->data.nati = *(mono_i*)data;
+               return;
+       case MONO_TYPE_PTR:
+               result->data.p = *(gpointer*)data;
+               return;
+       case MONO_TYPE_U4:
+               result->data.i = *(guint32*)data;
+               return;
+       case MONO_TYPE_R4:
+               result->data.f = *(float*)data;
+               return;
+       case MONO_TYPE_I8:
+       case MONO_TYPE_U8:
+               result->data.l = *(gint64*)data;
+               return;
+       case MONO_TYPE_R8:
+               result->data.f = *(double*)data;
+               return;
+       case MONO_TYPE_STRING:
+       case MONO_TYPE_SZARRAY:
+       case MONO_TYPE_CLASS:
+       case MONO_TYPE_OBJECT:
+       case MONO_TYPE_ARRAY:
+               result->data.p = *(gpointer*)data;
+               return;
+       case MONO_TYPE_VALUETYPE:
+               if (type->data.klass->enumtype) {
+                       stackval_from_data (mono_class_enum_basetype (type->data.klass), result, data, pinvoke);
+                       return;
+               } else {
+                       int size;
+                       
+                       if (pinvoke)
+                               size = mono_class_native_size (type->data.klass, NULL);
+                       else
+                               size = mono_class_value_size (type->data.klass, NULL);
+                       memcpy (result->data.vt, data, size);
+               }
+               return;
+       default:
+               g_warning ("got type 0x%02x", type->type);
+               g_assert_not_reached ();
+       }
+}
+
+static void inline
+stackval_to_data (MonoType *type, stackval *val, char *data, gboolean pinvoke)
+{
+       if (type->byref) {
+               gpointer *p = (gpointer*)data;
+               *p = val->data.p;
+               return;
+       }
+       /* printf ("TODAT0 %p\n", data); */
+       switch (type->type) {
+       case MONO_TYPE_I1:
+       case MONO_TYPE_U1: {
+               guint8 *p = (guint8*)data;
+               *p = val->data.i;
+               return;
+       }
+       case MONO_TYPE_BOOLEAN: {
+               guint8 *p = (guint8*)data;
+               *p = (val->data.i != 0);
+               return;
+       }
+       case MONO_TYPE_I2:
+       case MONO_TYPE_U2:
+       case MONO_TYPE_CHAR: {
+               guint16 *p = (guint16*)data;
+               *p = val->data.i;
+               return;
+       }
+       case MONO_TYPE_I: {
+               mono_i *p = (mono_i*)data;
+               /* In theory the value used by stloc should match the local var type
+                  but in practice it sometimes doesn't (a int32 gets dup'd and stloc'd into
+                  a native int - both by csc and mcs). Not sure what to do about sign extension
+                  as it is outside the spec... doing the obvious */
+               *p = (mono_i)val->data.nati;
+               return;
+       }
+       case MONO_TYPE_U: {
+               mono_u *p = (mono_u*)data;
+               /* see above. */
+               *p = (mono_u)val->data.nati;
+               return;
+       }
+       case MONO_TYPE_I4:
+       case MONO_TYPE_U4: {
+               gint32 *p = (gint32*)data;
+               *p = val->data.i;
+               return;
+       }
+       case MONO_TYPE_I8:
+       case MONO_TYPE_U8: {
+               gint64 *p = (gint64*)data;
+               *p = val->data.l;
+               return;
+       }
+       case MONO_TYPE_R4: {
+               float *p = (float*)data;
+               *p = val->data.f;
+               return;
+       }
+       case MONO_TYPE_R8: {
+               double *p = (double*)data;
+               *p = val->data.f;
+               return;
+       }
+       case MONO_TYPE_STRING:
+       case MONO_TYPE_SZARRAY:
+       case MONO_TYPE_CLASS:
+       case MONO_TYPE_OBJECT:
+       case MONO_TYPE_ARRAY:
+       case MONO_TYPE_PTR: {
+               gpointer *p = (gpointer*)data;
+               *p = val->data.p;
+               return;
+       }
+       case MONO_TYPE_VALUETYPE:
+               if (type->data.klass->enumtype) {
+                       stackval_to_data (mono_class_enum_basetype (type->data.klass), val, data, pinvoke);
+                       return;
+               } else {
+                       int size;
+
+                       if (pinvoke)
+                               size = mono_class_native_size (type->data.klass, NULL);
+                       else
+                               size = mono_class_value_size (type->data.klass, NULL);
+
+                       memcpy (data, val->data.p, size);
+               }
+               return;
+       default:
+               g_warning ("got type %x", type->type);
+               g_assert_not_reached ();
+       }
+}
+
+static void
+fill_in_trace (MonoException *exception, MonoInvocation *frame)
+{
+       char *stack_trace = dump_frame (frame);
+       MonoDomain *domain = mono_domain_get();
+       (exception)->stack_trace = mono_string_new (domain, stack_trace);
+       (exception)->trace_ips = get_trace_ips (domain, frame);
+       g_free (stack_trace);
+}
+
+#define FILL_IN_TRACE(exception, frame) fill_in_trace(exception, frame)
+
+#define THROW_EX(exception,ex_ip)      \
+       do {\
+               frame->ip = (ex_ip);            \
+               frame->ex = (MonoException*)(exception);        \
+               FILL_IN_TRACE(frame->ex, frame); \
+               goto handle_exception;  \
+       } while (0)
+
+static MonoObject*
+ves_array_create (MonoDomain *domain, MonoClass *klass, MonoMethodSignature *sig, stackval *values)
+{
+       uintptr_t *lengths;
+       intptr_t *lower_bounds;
+       MonoObject *obj;
+       MonoError error;
+       int i;
+
+       lengths = alloca (sizeof (uintptr_t) * klass->rank * 2);
+       for (i = 0; i < sig->param_count; ++i) {
+               lengths [i] = values->data.i;
+               values ++;
+       }
+       if (klass->rank == sig->param_count) {
+               /* Only lengths provided. */
+               lower_bounds = NULL;
+       } else {
+               /* lower bounds are first. */
+               lower_bounds = (intptr_t *) lengths;
+               lengths += klass->rank;
+       }
+       obj = (MonoObject*) mono_array_new_full_checked (domain, klass, lengths, lower_bounds, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       return obj;
+}
+
+static void 
+ves_array_set (MonoInvocation *frame)
+{
+       stackval *sp = frame->stack_args;
+       MonoObject *o;
+       MonoArray *ao;
+       MonoClass *ac;
+       gint32 i, t, pos, esize;
+       gpointer ea;
+       MonoType *mt;
+
+       o = frame->obj;
+       ao = (MonoArray *)o;
+       ac = o->vtable->klass;
+
+       g_assert (ac->rank >= 1);
+
+       pos = sp [0].data.i;
+       if (ao->bounds != NULL) {
+               pos -= ao->bounds [0].lower_bound;
+               for (i = 1; i < ac->rank; i++) {
+                       if ((t = sp [i].data.i - ao->bounds [i].lower_bound) >= 
+                           ao->bounds [i].length) {
+                               frame->ex = mono_get_exception_index_out_of_range ();
+                               FILL_IN_TRACE(frame->ex, frame);
+                               return;
+                       }
+                       pos = pos*ao->bounds [i].length + sp [i].data.i - 
+                               ao->bounds [i].lower_bound;
+               }
+       } else if (pos >= ao->max_length) {
+               frame->ex = mono_get_exception_index_out_of_range ();
+               FILL_IN_TRACE(frame->ex, frame);
+               return;
+       }
+
+       if (sp [ac->rank].data.p && !mono_object_class (o)->element_class->valuetype) {
+               MonoError error;
+               MonoObject *isinst = mono_object_isinst_checked (sp [ac->rank].data.p, mono_object_class (o)->element_class, &error);
+               mono_error_cleanup (&error);
+               if (!isinst) {
+                       frame->ex = mono_get_exception_array_type_mismatch ();
+                       FILL_IN_TRACE (frame->ex, frame);
+                       return;
+               }
+       }
+
+       esize = mono_array_element_size (ac);
+       ea = mono_array_addr_with_size (ao, esize, pos);
+
+       mt = mono_method_signature (frame->runtime_method->method)->params [ac->rank];
+       stackval_to_data (mt, &sp [ac->rank], ea, FALSE);
+}
+
+static void 
+ves_array_get (MonoInvocation *frame)
+{
+       stackval *sp = frame->stack_args;
+       MonoObject *o;
+       MonoArray *ao;
+       MonoClass *ac;
+       gint32 i, t, pos, esize;
+       gpointer ea;
+       MonoType *mt;
+
+       o = frame->obj;
+       ao = (MonoArray *)o;
+       ac = o->vtable->klass;
+
+       g_assert (ac->rank >= 1);
+
+       pos = sp [0].data.i;
+       if (ao->bounds != NULL) {
+               pos -= ao->bounds [0].lower_bound;
+               for (i = 1; i < ac->rank; i++) {
+                       if ((t = sp [i].data.i - ao->bounds [i].lower_bound) >= 
+                           ao->bounds [i].length) {
+                               frame->ex = mono_get_exception_index_out_of_range ();
+                               FILL_IN_TRACE(frame->ex, frame);
+                               return;
+                       }
+
+                       pos = pos*ao->bounds [i].length + sp [i].data.i - 
+                               ao->bounds [i].lower_bound;
+               }
+       } else if (pos >= ao->max_length) {
+               frame->ex = mono_get_exception_index_out_of_range ();
+               FILL_IN_TRACE(frame->ex, frame);
+               return;
+       }
+
+       esize = mono_array_element_size (ac);
+       ea = mono_array_addr_with_size (ao, esize, pos);
+
+       mt = mono_method_signature (frame->runtime_method->method)->ret;
+       stackval_from_data (mt, frame->retval, ea, FALSE);
+}
+
+static void
+ves_array_element_address (MonoInvocation *frame)
+{
+       stackval *sp = frame->stack_args;
+       MonoObject *o;
+       MonoArray *ao;
+       MonoClass *ac;
+       gint32 i, t, pos, esize;
+       gpointer ea;
+
+       o = frame->obj;
+       ao = (MonoArray *)o;
+       ac = o->vtable->klass;
+
+       g_assert (ac->rank >= 1);
+
+       pos = sp [0].data.i;
+       if (ao->bounds != NULL) {
+               pos -= ao->bounds [0].lower_bound;
+               for (i = 1; i < ac->rank; i++) {
+                       if ((t = sp [i].data.i - ao->bounds [i].lower_bound) >= 
+                           ao->bounds [i].length) {
+                               frame->ex = mono_get_exception_index_out_of_range ();
+                               FILL_IN_TRACE(frame->ex, frame);
+                               return;
+                       }
+                       pos = pos*ao->bounds [i].length + sp [i].data.i - 
+                               ao->bounds [i].lower_bound;
+               }
+       } else if (pos >= ao->max_length) {
+               frame->ex = mono_get_exception_index_out_of_range ();
+               FILL_IN_TRACE(frame->ex, frame);
+               return;
+       }
+
+       esize = mono_array_element_size (ac);
+       ea = mono_array_addr_with_size (ao, esize, pos);
+
+       frame->retval->data.p = ea;
+}
+
+static void
+interp_walk_stack (MonoStackWalk func, gboolean do_il_offset, gpointer user_data)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoInvocation *frame;
+       int il_offset;
+       MonoMethodHeader *hd;
+       MonoError error;
+
+       if (!context) return;
+               
+       frame = context->current_frame;
+
+       while (frame) {
+               gboolean managed = FALSE;
+               MonoMethod *method = frame->runtime_method->method;
+               if (!method || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)))
+                       il_offset = -1;
+               else {
+                       hd = mono_method_get_header_checked (method, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       il_offset = frame->ip - (const unsigned short *)hd->code;
+                       if (!method->wrapper_type)
+                               managed = TRUE;
+               }
+               if (func (method, -1, il_offset, managed, user_data))
+                       return;
+               frame = frame->parent;
+       }
+}
+
+static MonoPIFunc mono_interp_enter_icall_trampoline = NULL;
+
+struct _MethodArguments {
+       size_t ilen;
+       gpointer *iargs;
+       size_t flen;
+       gpointer *fargs;
+       gpointer *retval;
+};
+
+typedef struct _MethodArguments MethodArguments;
+
+// TODO: this function is also arch dependent (register width).
+static MethodArguments* build_args_from_sig (MonoMethodSignature *sig, MonoInvocation *frame)
+{
+       // TODO: don't malloc this data structure.
+       MethodArguments *margs = g_malloc0 (sizeof (MethodArguments));
+
+       if (sig->hasthis)
+               margs->ilen++;
+
+       for (int i = 0; i < sig->param_count; i++) {
+               guint32 ptype = sig->params [i]->byref ? MONO_TYPE_PTR : sig->params [i]->type;
+               switch (ptype) {
+               case MONO_TYPE_BOOLEAN:
+               case MONO_TYPE_CHAR:
+               case MONO_TYPE_I1:
+               case MONO_TYPE_U1:
+               case MONO_TYPE_I2:
+               case MONO_TYPE_U2:
+               case MONO_TYPE_I4:
+               case MONO_TYPE_U4:
+               case MONO_TYPE_I:
+               case MONO_TYPE_U:
+               case MONO_TYPE_PTR:
+               case MONO_TYPE_SZARRAY:
+               case MONO_TYPE_CLASS:
+               case MONO_TYPE_OBJECT:
+               case MONO_TYPE_STRING:
+               case MONO_TYPE_I8:
+                       margs->ilen++;
+                       break;
+               default:
+                       g_error ("build_args_from_sig: not implemented yet (1): 0x%x\n", ptype);
+               }
+       }
+
+       if (margs->ilen > 0)
+               margs->iargs = g_malloc0 (sizeof (gpointer) * margs->ilen);
+
+       if (margs->ilen > 3)
+               g_error ("build_args_from_sig: TODO, more than two iregs: %d\n", margs->ilen);
+
+       if (margs->flen > 0)
+               g_error ("build_args_from_sig: TODO, allocate floats: %d\n", margs->flen);
+
+
+       size_t int_i = 0;
+
+       if (sig->hasthis) {
+               margs->iargs [0] = frame->obj;
+               int_i++;
+       }
+
+       for (int i = 0; i < sig->param_count; i++) {
+               guint32 ptype = sig->params [i]->byref ? MONO_TYPE_PTR : sig->params [i]->type;
+               switch (ptype) {
+               case MONO_TYPE_BOOLEAN:
+               case MONO_TYPE_CHAR:
+               case MONO_TYPE_I1:
+               case MONO_TYPE_U1:
+               case MONO_TYPE_I2:
+               case MONO_TYPE_U2:
+               case MONO_TYPE_I4:
+               case MONO_TYPE_U4:
+               case MONO_TYPE_I:
+               case MONO_TYPE_U:
+               case MONO_TYPE_PTR:
+               case MONO_TYPE_SZARRAY:
+               case MONO_TYPE_CLASS:
+               case MONO_TYPE_OBJECT:
+               case MONO_TYPE_STRING:
+               case MONO_TYPE_I8:
+                       margs->iargs [int_i] = frame->stack_args [i].data.p;
+#if DEBUG_INTERP
+                       g_printerr ("build_args_from_sig: margs->iargs[%d]: %p (frame @ %d)\n", int_i, margs->iargs[int_i], i);
+#endif
+                       int_i++;
+                       break;
+               default:
+                       g_error ("build_args_from_sig: not implemented yet (2): 0x%x\n", ptype);
+               }
+       }
+
+       if (sig->ret->type != MONO_TYPE_VOID) {
+               margs->retval = &(frame->retval->data.p);
+       } else {
+               margs->retval = NULL;
+       }
+
+       return margs;
+}
+
+static void 
+ves_pinvoke_method (MonoInvocation *frame, MonoMethodSignature *sig, MonoFuncV addr, gboolean string_ctor, ThreadContext *context)
+{
+       jmp_buf env;
+       MonoInvocation *old_frame = context->current_frame;
+       MonoInvocation *old_env_frame = context->env_frame;
+       jmp_buf *old_env = context->current_env;
+
+       if (setjmp (env)) {
+               context->current_frame = old_frame;
+               context->env_frame = old_env_frame;
+               context->current_env = old_env;
+               context->managed_code = 1;
+               return;
+       }
+
+       frame->ex = NULL;
+       context->env_frame = frame;
+       context->current_env = &env;
+
+       g_assert (!frame->runtime_method);
+       if (!mono_interp_enter_icall_trampoline) {
+               MonoTrampInfo *info;
+               mono_interp_enter_icall_trampoline = mono_arch_get_enter_icall_trampoline (&info);
+               // TODO:
+               // mono_tramp_info_register (info, NULL);
+       }
+
+       MethodArguments *margs = build_args_from_sig (sig, frame);
+#if DEBUG_INTERP
+       g_printerr ("ICALL: mono_interp_enter_icall_trampoline = %p, addr = %p\n", mono_interp_enter_icall_trampoline, addr);
+       g_printerr ("margs(out): ilen=%d, flen=%d\n", margs->ilen, margs->flen);
+#endif
+
+       context->current_frame = frame;
+       context->managed_code = 0;
+
+       mono_interp_enter_icall_trampoline (addr, margs);
+
+       context->managed_code = 1;
+       /* domain can only be changed by native code */
+       context->domain = mono_domain_get ();
+
+       if (*abort_requested)
+               mono_thread_interruption_checkpoint ();
+       
+       if (!MONO_TYPE_ISSTRUCT (sig->ret))
+               stackval_from_data (sig->ret, frame->retval, (char*)&frame->retval->data.p, sig->pinvoke);
+
+       context->current_frame = old_frame;
+       context->env_frame = old_env_frame;
+       context->current_env = old_env;
+
+       g_free (margs->iargs);
+       g_free (margs->fargs);
+       g_free (margs);
+}
+
+static void
+interp_delegate_ctor (MonoDomain *domain, MonoObject *this, MonoObject *target, RuntimeMethod *runtime_method)
+{
+       MonoDelegate *delegate = (MonoDelegate *)this;
+       MonoError error;
+
+       delegate->method_info = mono_method_get_object_checked (domain, runtime_method->method, NULL, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       delegate->target = target;
+
+       if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
+               MonoMethod *method = mono_marshal_get_remoting_invoke (runtime_method->method);
+               delegate->method_ptr = mono_interp_get_runtime_method (domain, method, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       } else {
+               delegate->method_ptr = runtime_method;
+       }
+}
+
+MonoDelegate*
+mono_interp_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
+{
+       MonoDelegate *d;
+       MonoJitInfo *ji;
+       MonoDomain *domain = mono_domain_get ();
+       MonoError error;
+
+       d = (MonoDelegate*)mono_object_new_checked (domain, klass, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       ji = mono_jit_info_table_find (domain, ftn);
+       if (ji == NULL)
+               mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
+
+       /* FIXME: discard the wrapper and call the original method */
+       interp_delegate_ctor (domain, (MonoObject*)d, NULL, mono_interp_get_runtime_method (domain, ji->d.method, &error));
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       return d;
+}
+
+/*
+ * From the spec:
+ * runtime specifies that the implementation of the method is automatically
+ * provided by the runtime and is primarily used for the methods of delegates.
+ */
+static void
+ves_runtime_method (MonoInvocation *frame, ThreadContext *context)
+{
+       MonoMethod *method = frame->runtime_method->method;
+       const char *name = method->name;
+       MonoObject *obj = (MonoObject*)frame->obj;
+       MonoObject *isinst_obj;
+       MonoError error;
+
+       mono_class_init (method->klass);
+
+       isinst_obj = mono_object_isinst_checked (obj, mono_defaults.multicastdelegate_class, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       if (obj && isinst_obj) {
+               if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
+                       interp_delegate_ctor (context->domain, obj, frame->stack_args[0].data.p, frame->stack_args[1].data.p);
+                       return;
+               }
+       }
+
+       isinst_obj = mono_object_isinst_checked (obj, mono_defaults.array_class, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       if (obj && isinst_obj) {
+               if (*name == 'S' && (strcmp (name, "Set") == 0)) {
+                       ves_array_set (frame);
+                       return;
+               }
+               if (*name == 'G' && (strcmp (name, "Get") == 0)) {
+                       ves_array_get (frame);
+                       return;
+               }
+               if (*name == 'A' && (strcmp (name, "Address") == 0)) {
+                       ves_array_element_address (frame);
+                       return;
+               }
+       }
+       
+       g_error ("Don't know how to exec runtime method %s.%s::%s", 
+                       method->klass->name_space, method->klass->name,
+                       method->name);
+}
+
+static char*
+dump_stack (stackval *stack, stackval *sp)
+{
+       stackval *s = stack;
+       GString *str = g_string_new ("");
+       
+       if (sp == stack)
+               return g_string_free (str, FALSE);
+       
+       while (s < sp) {
+               g_string_append_printf (str, "[%lld/0x%0llx] ", s->data.l, s->data.l);
+               ++s;
+       }
+       return g_string_free (str, FALSE);
+}
+
+static void
+dump_stackval (GString *str, stackval *s, MonoType *type)
+{
+       switch (type->type) {
+       case MONO_TYPE_I1:
+       case MONO_TYPE_U1:
+       case MONO_TYPE_I2:
+       case MONO_TYPE_U2:
+       case MONO_TYPE_I4:
+       case MONO_TYPE_U4:
+       case MONO_TYPE_CHAR:
+       case MONO_TYPE_BOOLEAN:
+               g_string_append_printf (str, "[%d] ", s->data.i);
+               break;
+       case MONO_TYPE_STRING:
+       case MONO_TYPE_SZARRAY:
+       case MONO_TYPE_CLASS:
+       case MONO_TYPE_OBJECT:
+       case MONO_TYPE_ARRAY:
+       case MONO_TYPE_PTR:
+       case MONO_TYPE_I:
+       case MONO_TYPE_U:
+               g_string_append_printf (str, "[%p] ", s->data.p);
+               break;
+       case MONO_TYPE_VALUETYPE:
+               if (type->data.klass->enumtype)
+                       g_string_append_printf (str, "[%d] ", s->data.i);
+               else
+                       g_string_append_printf (str, "[vt:%p] ", s->data.p);
+               break;
+       case MONO_TYPE_R4:
+       case MONO_TYPE_R8:
+               g_string_append_printf (str, "[%g] ", s->data.f);
+               break;
+       case MONO_TYPE_I8:
+       case MONO_TYPE_U8:
+       default:
+               g_string_append_printf (str, "[%lld/0x%0llx] ", s->data.l, s->data.l);
+               break;
+       }
+}
+
+static char*
+dump_args (MonoInvocation *inv)
+{
+       GString *str = g_string_new ("");
+       int i;
+       MonoMethodSignature *signature = mono_method_signature (inv->runtime_method->method);
+       
+       if (signature->param_count == 0)
+               return g_string_free (str, FALSE);
+
+       if (signature->hasthis)
+               g_string_append_printf (str, "%p ", inv->obj);
+
+       for (i = 0; i < signature->param_count; ++i)
+               dump_stackval (str, inv->stack_args + i, signature->params [i]);
+
+       return g_string_free (str, FALSE);
+}
+
+static char*
+dump_retval (MonoInvocation *inv)
+{
+       GString *str = g_string_new ("");
+       MonoType *ret = mono_method_signature (inv->runtime_method->method)->ret;
+
+       if (ret->type != MONO_TYPE_VOID)
+               dump_stackval (str, inv->retval, ret);
+
+       return g_string_free (str, FALSE);
+}
+static char*
+dump_frame (MonoInvocation *inv)
+{
+       GString *str = g_string_new ("");
+       int i;
+       char *args;
+       MonoError error;
+
+       for (i = 0; inv; inv = inv->parent) {
+               if (inv->runtime_method != NULL) {
+                       MonoMethod *method = inv->runtime_method->method;
+                       MonoClass *k;
+
+                       int codep = 0;
+                       const char * opname = "";
+                       char *name;
+                       gchar *source = NULL;
+
+                       k = method->klass;
+
+                       if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
+                               (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) == 0) {
+                               MonoMethodHeader *hd = mono_method_get_header_checked (method, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+                               if (hd != NULL) {
+                                       if (inv->ip) {
+                                               opname = mono_interp_opname [*inv->ip];
+                                               codep = inv->ip - inv->runtime_method->code;
+                                               source = g_strdup_printf ("%s:%d // (TODO: proper stacktrace)", method->name, codep);
+                                       } else 
+                                               opname = "";
+
+#if 0
+                                       MonoDebugSourceLocation *minfo = mono_debug_lookup_method (method);
+                                       source = mono_debug_method_lookup_location (minfo, codep);
+#endif
+                               }
+                       }
+                       args = dump_args (inv);
+                       name = mono_method_full_name (method, TRUE);
+                       if (source)
+                               g_string_append_printf (str, "#%d: 0x%05x %-10s in %s (%s) at %s\n", i, codep, opname, name, args, source);
+                       else
+                               g_string_append_printf (str, "#%d: 0x%05x %-10s in %s (%s)\n", i, codep, opname, name, args);
+                       g_free (name);
+                       g_free (args);
+                       g_free (source);
+                       ++i;
+               }
+       }
+       return g_string_free (str, FALSE);
+}
+
+static MonoArray *
+get_trace_ips (MonoDomain *domain, MonoInvocation *top)
+{
+       int i;
+       MonoArray *res;
+       MonoInvocation *inv;
+       MonoError error;
+
+       for (i = 0, inv = top; inv; inv = inv->parent)
+               if (inv->runtime_method != NULL)
+                       ++i;
+
+       res = mono_array_new_checked (domain, mono_defaults.int_class, 2 * i, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       for (i = 0, inv = top; inv; inv = inv->parent)
+               if (inv->runtime_method != NULL) {
+                       mono_array_set (res, gpointer, i, inv->runtime_method);
+                       ++i;
+                       mono_array_set (res, gpointer, i, (gpointer)inv->ip);
+                       ++i;
+               }
+
+       return res;
+}
+
+
+#define MYGUINT64_MAX 18446744073709551615ULL
+#define MYGINT64_MAX 9223372036854775807LL
+#define MYGINT64_MIN (-MYGINT64_MAX -1LL)
+
+#define MYGUINT32_MAX 4294967295U
+#define MYGINT32_MAX 2147483647
+#define MYGINT32_MIN (-MYGINT32_MAX -1)
+       
+#define CHECK_ADD_OVERFLOW(a,b) \
+       (gint32)(b) >= 0 ? (gint32)(MYGINT32_MAX) - (gint32)(b) < (gint32)(a) ? -1 : 0  \
+       : (gint32)(MYGINT32_MIN) - (gint32)(b) > (gint32)(a) ? +1 : 0
+
+#define CHECK_SUB_OVERFLOW(a,b) \
+       (gint32)(b) < 0 ? (gint32)(MYGINT32_MAX) + (gint32)(b) < (gint32)(a) ? -1 : 0   \
+       : (gint32)(MYGINT32_MIN) + (gint32)(b) > (gint32)(a) ? +1 : 0
+
+#define CHECK_ADD_OVERFLOW_UN(a,b) \
+       (guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a) ? -1 : 0
+
+#define CHECK_SUB_OVERFLOW_UN(a,b) \
+       (guint32)(a) < (guint32)(b) ? -1 : 0
+
+#define CHECK_ADD_OVERFLOW64(a,b) \
+       (gint64)(b) >= 0 ? (gint64)(MYGINT64_MAX) - (gint64)(b) < (gint64)(a) ? -1 : 0  \
+       : (gint64)(MYGINT64_MIN) - (gint64)(b) > (gint64)(a) ? +1 : 0
+
+#define CHECK_SUB_OVERFLOW64(a,b) \
+       (gint64)(b) < 0 ? (gint64)(MYGINT64_MAX) + (gint64)(b) < (gint64)(a) ? -1 : 0   \
+       : (gint64)(MYGINT64_MIN) + (gint64)(b) > (gint64)(a) ? +1 : 0
+
+#define CHECK_ADD_OVERFLOW64_UN(a,b) \
+       (guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a) ? -1 : 0
+
+#define CHECK_SUB_OVERFLOW64_UN(a,b) \
+       (guint64)(a) < (guint64)(b) ? -1 : 0
+
+#if SIZEOF_VOID_P == 4
+#define CHECK_ADD_OVERFLOW_NAT(a,b) CHECK_ADD_OVERFLOW(a,b)
+#define CHECK_ADD_OVERFLOW_NAT_UN(a,b) CHECK_ADD_OVERFLOW_UN(a,b)
+#else
+#define CHECK_ADD_OVERFLOW_NAT(a,b) CHECK_ADD_OVERFLOW64(a,b)
+#define CHECK_ADD_OVERFLOW_NAT_UN(a,b) CHECK_ADD_OVERFLOW64_UN(a,b)
+#endif
+
+/* Resolves to TRUE if the operands would overflow */
+#define CHECK_MUL_OVERFLOW(a,b) \
+       ((gint32)(a) == 0) || ((gint32)(b) == 0) ? 0 : \
+       (((gint32)(a) > 0) && ((gint32)(b) == -1)) ? FALSE : \
+       (((gint32)(a) < 0) && ((gint32)(b) == -1)) ? (a == - MYGINT32_MAX) : \
+       (((gint32)(a) > 0) && ((gint32)(b) > 0)) ? (gint32)(a) > ((MYGINT32_MAX) / (gint32)(b)) : \
+       (((gint32)(a) > 0) && ((gint32)(b) < 0)) ? (gint32)(a) > ((MYGINT32_MIN) / (gint32)(b)) : \
+       (((gint32)(a) < 0) && ((gint32)(b) > 0)) ? (gint32)(a) < ((MYGINT32_MIN) / (gint32)(b)) : \
+       (gint32)(a) < ((MYGINT32_MAX) / (gint32)(b))
+
+#define CHECK_MUL_OVERFLOW_UN(a,b) \
+       ((guint32)(a) == 0) || ((guint32)(b) == 0) ? 0 : \
+       (guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a))
+
+#define CHECK_MUL_OVERFLOW64(a,b) \
+       ((gint64)(a) == 0) || ((gint64)(b) == 0) ? 0 : \
+       (((gint64)(a) > 0) && ((gint64)(b) == -1)) ? FALSE : \
+       (((gint64)(a) < 0) && ((gint64)(b) == -1)) ? (a == - MYGINT64_MAX) : \
+       (((gint64)(a) > 0) && ((gint64)(b) > 0)) ? (gint64)(a) > ((MYGINT64_MAX) / (gint64)(b)) : \
+       (((gint64)(a) > 0) && ((gint64)(b) < 0)) ? (gint64)(a) > ((MYGINT64_MIN) / (gint64)(b)) : \
+       (((gint64)(a) < 0) && ((gint64)(b) > 0)) ? (gint64)(a) < ((MYGINT64_MIN) / (gint64)(b)) : \
+       (gint64)(a) < ((MYGINT64_MAX) / (gint64)(b))
+
+#define CHECK_MUL_OVERFLOW64_UN(a,b) \
+       ((guint64)(a) == 0) || ((guint64)(b) == 0) ? 0 : \
+       (guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a))
+
+#if SIZEOF_VOID_P == 4
+#define CHECK_MUL_OVERFLOW_NAT(a,b) CHECK_MUL_OVERFLOW(a,b)
+#define CHECK_MUL_OVERFLOW_NAT_UN(a,b) CHECK_MUL_OVERFLOW_UN(a,b)
+#else
+#define CHECK_MUL_OVERFLOW_NAT(a,b) CHECK_MUL_OVERFLOW64(a,b)
+#define CHECK_MUL_OVERFLOW_NAT_UN(a,b) CHECK_MUL_OVERFLOW64_UN(a,b)
+#endif
+
+static MonoObject*
+interp_mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc, MonoError *error)
+{
+       MonoInvocation frame;
+       ThreadContext * volatile context = mono_native_tls_get_value (thread_context_id);
+       MonoObject *retval = NULL;
+       MonoMethodSignature *sig = mono_method_signature (method);
+       MonoClass *klass = mono_class_from_mono_type (sig->ret);
+       int i, type, isobject = 0;
+       void *ret = NULL;
+       stackval result;
+       stackval *args = alloca (sizeof (stackval) * sig->param_count);
+       ThreadContext context_struct;
+       MonoInvocation *old_frame = NULL;
+       jmp_buf env;
+
+       mono_error_init (error);
+
+       frame.ex = NULL;
+
+       if (setjmp(env)) {
+               if (context != &context_struct) {
+                       context->domain = mono_domain_get ();
+                       context->current_frame = old_frame;
+                       context->managed_code = 0;
+               } else 
+                       mono_native_tls_set_value (thread_context_id, NULL);
+               if (exc != NULL)
+                       *exc = (MonoObject *)frame.ex;
+               return retval;
+       }
+
+       if (context == NULL) {
+               context = &context_struct;
+               context_struct.base_frame = &frame;
+               context_struct.current_frame = NULL;
+               context_struct.env_frame = &frame;
+               context_struct.current_env = &env;
+               context_struct.search_for_handler = 0;
+               context_struct.managed_code = 0;
+               mono_native_tls_set_value (thread_context_id, context);
+       }
+       else
+               old_frame = context->current_frame;
+
+       context->domain = mono_domain_get ();
+
+       switch (sig->ret->type) {
+       case MONO_TYPE_VOID:
+               break;
+       case MONO_TYPE_STRING:
+       case MONO_TYPE_OBJECT:
+       case MONO_TYPE_CLASS:
+       case MONO_TYPE_ARRAY:
+       case MONO_TYPE_SZARRAY:
+               isobject = 1;
+               break;
+       case MONO_TYPE_VALUETYPE:
+               retval = mono_object_new_checked (context->domain, klass, error);
+               ret = ((char*)retval) + sizeof (MonoObject);
+               if (!sig->ret->data.klass->enumtype)
+                       result.data.vt = ret;
+               break;
+       default:
+               retval = mono_object_new_checked (context->domain, klass, error);
+               ret = ((char*)retval) + sizeof (MonoObject);
+               break;
+       }
+
+       for (i = 0; i < sig->param_count; ++i) {
+               if (sig->params [i]->byref) {
+                       args [i].data.p = params [i];
+                       continue;
+               }
+               type = sig->params [i]->type;
+handle_enum:
+               switch (type) {
+               case MONO_TYPE_U1:
+               case MONO_TYPE_I1:
+               case MONO_TYPE_BOOLEAN:
+                       args [i].data.i = *(MonoBoolean*)params [i];
+                       break;
+               case MONO_TYPE_U2:
+               case MONO_TYPE_I2:
+               case MONO_TYPE_CHAR:
+                       args [i].data.i = *(gint16*)params [i];
+                       break;
+#if SIZEOF_VOID_P == 4
+               case MONO_TYPE_U: /* use VAL_POINTER? */
+               case MONO_TYPE_I:
+#endif
+               case MONO_TYPE_U4:
+               case MONO_TYPE_I4:
+                       args [i].data.i = *(gint32*)params [i];
+                       break;
+#if SIZEOF_VOID_P == 8
+               case MONO_TYPE_U:
+               case MONO_TYPE_I:
+#endif
+               case MONO_TYPE_U8:
+               case MONO_TYPE_I8:
+                       args [i].data.l = *(gint64*)params [i];
+                       break;
+               case MONO_TYPE_VALUETYPE:
+                       if (sig->params [i]->data.klass->enumtype) {
+                               type = mono_class_enum_basetype (sig->params [i]->data.klass)->type;
+                               goto handle_enum;
+                       } else {
+                               args [i].data.p = params [i];
+                       }
+                       break;
+               case MONO_TYPE_STRING:
+               case MONO_TYPE_CLASS:
+               case MONO_TYPE_ARRAY:
+               case MONO_TYPE_SZARRAY:
+               case MONO_TYPE_OBJECT:
+                       args [i].data.p = params [i];
+                       break;
+               default:
+                       g_error ("type 0x%x not handled in  runtime invoke", sig->params [i]->type);
+               }
+       }
+
+       if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
+               method = mono_marshal_get_native_wrapper (method, FALSE, FALSE);
+       INIT_FRAME(&frame,context->current_frame,obj,args,&result,mono_get_root_domain (),method,error);
+       if (exc)
+               frame.invoke_trap = 1;
+       context->managed_code = 1;
+       ves_exec_method_with_context (&frame, context);
+       context->managed_code = 0;
+       if (context == &context_struct)
+               mono_native_tls_set_value (thread_context_id, NULL);
+       else
+               context->current_frame = old_frame;
+       if (frame.ex != NULL) {
+               if (exc != NULL) {
+                       *exc = (MonoObject*) frame.ex;
+                       return NULL;
+               }
+               if (context->current_env != NULL) {
+                       context->env_frame->ex = frame.ex;
+                       longjmp(*context->current_env, 1);
+               }
+               else
+                       printf("dropped exception...\n");
+       }
+       if (sig->ret->type == MONO_TYPE_VOID && !method->string_ctor)
+               return NULL;
+       if (isobject || method->string_ctor)
+               return result.data.p;
+       stackval_to_data (sig->ret, &result, ret, sig->pinvoke);
+       return retval;
+}
+
+static stackval * 
+do_icall (ThreadContext *context, int op, stackval *sp, gpointer ptr)
+{
+       MonoInvocation *old_frame = context->current_frame;
+       MonoInvocation *old_env_frame = context->env_frame;
+       jmp_buf *old_env = context->current_env;
+       jmp_buf env;
+
+       if (setjmp (env)) {
+               context->current_frame = old_frame;
+               context->env_frame = old_env_frame;
+               context->current_env = old_env;
+               context->managed_code = 1;
+               return sp;
+       }
+
+       context->env_frame = context->current_frame;
+       context->current_env = &env;
+       context->managed_code = 0;
+
+       switch (op) {
+       case MINT_ICALL_V_V: {
+               void (*func)() = ptr;
+               func ();
+               break;
+       }
+       case MINT_ICALL_V_P: {
+               gpointer (*func)() = ptr;
+               sp++;
+               sp [-1].data.p = func ();
+               break;
+       }
+       case MINT_ICALL_P_V: {
+               void (*func)(gpointer) = ptr;
+               func (sp [-1].data.p);
+               sp --;
+               break;
+       }
+       case MINT_ICALL_P_P: {
+               gpointer (*func)(gpointer) = ptr;
+               sp [-1].data.p = func (sp [-1].data.p);
+               break;
+       }
+       case MINT_ICALL_PP_V: {
+               void (*func)(gpointer,gpointer) = ptr;
+               sp -= 2;
+               func (sp [0].data.p, sp [1].data.p);
+               break;
+       }
+       case MINT_ICALL_PI_V: {
+               void (*func)(gpointer,int) = ptr;
+               sp -= 2;
+               func (sp [0].data.p, sp [1].data.i);
+               break;
+       }
+       case MINT_ICALL_PP_P: {
+               gpointer (*func)(gpointer,gpointer) = ptr;
+               --sp;
+               sp [-1].data.p = func (sp [-1].data.p, sp [0].data.p);
+               break;
+       }
+       case MINT_ICALL_PI_P: {
+               gpointer (*func)(gpointer,int) = ptr;
+               --sp;
+               sp [-1].data.p = func (sp [-1].data.p, sp [0].data.i);
+               break;
+       }
+       case MINT_ICALL_PPP_V: {
+               void (*func)(gpointer,gpointer,gpointer) = ptr;
+               sp -= 3;
+               func (sp [0].data.p, sp [1].data.p, sp [2].data.p);
+               break;
+       }
+       case MINT_ICALL_PPI_V: {
+               void (*func)(gpointer,gpointer,int) = ptr;
+               sp -= 3;
+               func (sp [0].data.p, sp [1].data.p, sp [2].data.i);
+               break;
+       }
+       default:
+               g_assert_not_reached ();
+       }
+
+       context->env_frame = old_env_frame;
+       context->current_env = old_env;
+
+       return sp;
+}
+
+static mono_mutex_t create_method_pointer_mutex;
+
+static GHashTable *method_pointer_hash = NULL;
+
+static gpointer
+mono_create_method_pointer (MonoMethod *method, MonoError *error)
+{
+       gpointer addr;
+       MonoJitInfo *ji;
+       mono_error_init (error);
+
+       mono_os_mutex_lock (&create_method_pointer_mutex);
+       if (!method_pointer_hash) {
+               // FIXME: is registering method table as GC root really necessary?
+               // MONO_GC_REGISTER_ROOT_FIXED (method_pointer_hash);
+               method_pointer_hash = g_hash_table_new (NULL, NULL);
+       }
+       addr = g_hash_table_lookup (method_pointer_hash, method);
+       if (addr) {
+               mono_os_mutex_unlock (&create_method_pointer_mutex);
+               return addr;
+       }
+
+       /*
+        * If it is a static P/Invoke method, we can just return the pointer
+        * to the method implementation.
+        */
+       if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL && ((MonoMethodPInvoke*) method)->addr) {
+               ji = g_new0 (MonoJitInfo, 1);
+               ji->d.method = method;
+               ji->code_size = 1;
+               ji->code_start = addr = ((MonoMethodPInvoke*) method)->addr;
+
+               mono_jit_info_table_add (mono_get_root_domain (), ji);
+       }               
+       else {
+               g_error ("FIXME: not available? figure out new API");
+#if 0
+               addr = mono_arch_create_method_pointer (method);
+#endif
+       }
+
+       g_hash_table_insert (method_pointer_hash, method, addr);
+       mono_os_mutex_unlock (&create_method_pointer_mutex);
+
+       return addr;
+}
+
+#if COUNT_OPS
+static int opcode_counts[512];
+
+#define COUNT_OP(op) opcode_counts[op]++
+#else
+#define COUNT_OP(op) 
+#endif
+
+#if DEBUG_INTERP
+#define DUMP_INSTR() \
+       if (tracing > 1) { \
+               char *ins; \
+               if (sp > frame->stack) { \
+                       ins = dump_stack (frame->stack, sp); \
+               } else { \
+                       ins = g_strdup (""); \
+               } \
+               sp->data.l = 0; \
+               output_indent (); \
+               g_print ("(%u) ", mono_thread_internal_current ()); \
+               mono_interp_dis_mintop(rtm->code, ip); \
+               g_print ("\t%d:%s\n", vt_sp - vtalloc, ins); \
+               g_free (ins); \
+       }
+#else
+#define DUMP_INSTR()
+#endif
+
+#ifdef __GNUC__
+#define USE_COMPUTED_GOTO 1
+#endif
+#if USE_COMPUTED_GOTO
+#define MINT_IN_SWITCH(op) COUNT_OP(op); goto *in_labels[op];
+#define MINT_IN_CASE(x) LAB_ ## x:
+#if DEBUG_INTERP
+#define MINT_IN_BREAK if (tracing > 1) goto main_loop; else { COUNT_OP(*ip); goto *in_labels[*ip]; }
+#else
+#define MINT_IN_BREAK { COUNT_OP(*ip); goto *in_labels[*ip]; }
+#endif
+#define MINT_IN_DEFAULT mint_default: if (0) goto mint_default; /* make gcc shut up */
+#else
+#define MINT_IN_SWITCH(op) switch (op)
+#define MINT_IN_CASE(x) case x:
+#define MINT_IN_BREAK break
+#define MINT_IN_DEFAULT default:
+#endif
+
+/* 
+ * Defining this causes register allocation errors in some versions of gcc:
+ * error: unable to find a register to spill in class `SIREG'
+ */
+/* #define MINT_USE_DEDICATED_IP_REG */
+
+static void 
+ves_exec_method_with_context (MonoInvocation *frame, ThreadContext *context)
+{
+       MonoInvocation child_frame;
+       GSList *finally_ips = NULL;
+       const unsigned short *endfinally_ip = NULL;
+#if defined(__GNUC__) && defined (i386) && defined (MINT_USE_DEDICATED_IP_REG)
+       register const unsigned short *ip asm ("%esi");
+#else
+       register const unsigned short *ip;
+#endif
+       register stackval *sp;
+       RuntimeMethod *rtm;
+#if DEBUG_INTERP
+       gint tracing = global_tracing;
+       unsigned char *vtalloc;
+#endif
+       int i32;
+       unsigned char *vt_sp;
+       unsigned char *locals;
+       MonoError error;
+       MonoObject *o = NULL;
+       MonoClass *c;
+#if USE_COMPUTED_GOTO
+       static void *in_labels[] = {
+#define OPDEF(a,b,c,d) \
+       &&LAB_ ## a,
+#include "mintops.def"
+       0 };
+#endif
+
+       frame->ex = NULL;
+       frame->ex_handler = NULL;
+       frame->ip = NULL;
+       context->current_frame = frame;
+
+#if DEBUG_INTERP
+       debug_enter (frame, &tracing);
+#endif
+
+       if (!frame->runtime_method->transformed) {
+               context->managed_code = 0;
+#if DEBUG_INTERP
+               char *mn = mono_method_full_name (frame->runtime_method->method, FALSE);
+               g_printerr ("(0x%08x) Transforming %s\n", mono_thread_internal_current (), mn);
+               g_free (mn);
+#endif
+               frame->ex = mono_interp_transform_method (frame->runtime_method, context);
+               context->managed_code = 1;
+               if (frame->ex) {
+                       rtm = NULL;
+                       ip = NULL;
+                       goto exit_frame;
+               }
+       }
+
+       rtm = frame->runtime_method;
+       frame->args = alloca (rtm->alloca_size);
+       sp = frame->stack = (stackval *)((char *)frame->args + rtm->args_size);
+#if DEBUG_INTERP
+       if (tracing > 1)
+               memset(sp, 0, rtm->stack_size);
+#endif
+       vt_sp = (unsigned char *) sp + rtm->stack_size;
+#if DEBUG_INTERP
+       vtalloc = vt_sp;
+#endif
+       locals = (unsigned char *) vt_sp + rtm->vt_stack_size;
+
+       child_frame.parent = frame;
+
+       /* ready to go */
+       ip = rtm->code;
+
+       /*
+        * using while (ip < end) may result in a 15% performance drop, 
+        * but it may be useful for debug
+        */
+       while (1) {
+       main_loop:
+               /* g_assert (sp >= frame->stack); */
+               /* g_assert(vt_sp - vtalloc <= rtm->vt_stack_size); */
+               DUMP_INSTR();
+               MINT_IN_SWITCH (*ip) {
+               MINT_IN_CASE(MINT_INITLOCALS)
+                       memset (locals, 0, rtm->locals_size);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NOP)
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BREAK)
+                       ++ip;
+                       G_BREAKPOINT (); /* this is not portable... */
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDNULL) 
+                       sp->data.p = NULL;
+                       ++ip;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_VTRESULT) {
+                       int ret_size = * (guint16 *)(ip + 1);
+                       unsigned char *ret_vt_sp = vt_sp;
+                       vt_sp -= READ32(ip + 2);
+                       if (ret_size > 0) {
+                               memmove (vt_sp, ret_vt_sp, ret_size);
+                               vt_sp += (ret_size + 7) & ~7;
+                       }
+                       ip += 4;
+                       MINT_IN_BREAK;
+               }
+#define LDC(n) do { sp->data.i = (n); ++ip; ++sp; } while (0)
+               MINT_IN_CASE(MINT_LDC_I4_M1)
+                       LDC(-1);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_0)
+                       LDC(0);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_1)
+                       LDC(1);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_2)
+                       LDC(2);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_3)
+                       LDC(3);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_4)
+                       LDC(4);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_5)
+                       LDC(5);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_6)
+                       LDC(6);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_7)
+                       LDC(7);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_8)
+                       LDC(8);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4_S) 
+                       sp->data.i = *(const short *)(ip + 1);
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I4)
+                       ++ip;
+                       sp->data.i = READ32 (ip);
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_I8)
+                       ++ip;
+                       sp->data.l = READ64 (ip);
+                       ip += 4;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDC_R4) {
+                       guint32 val;
+                       ++ip;
+                       val = READ32(ip);
+                       sp->data.f = * (float *)&val;
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDC_R8) 
+                       sp->data.l = READ64 (ip + 1); /* note union usage */
+                       ip += 5;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DUP) 
+                       sp [0] = sp[-1];
+                       ++sp;
+                       ++ip; 
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DUP_VT)
+                       i32 = READ32 (ip + 1);
+                       sp->data.p = vt_sp;
+                       memcpy(sp->data.p, sp [-1].data.p, i32);
+                       vt_sp += (i32 + 7) & ~7;
+                       ++sp;
+                       ip += 3;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_POP)
+                       ++ip;
+                       --sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_JMP) {
+                       RuntimeMethod *new_method = rtm->data_items [* (guint16 *)(ip + 1)];
+                       if (!new_method->transformed) {
+                               frame->ip = ip;
+                               frame->ex = mono_interp_transform_method (new_method, context);
+                               if (frame->ex)
+                                       goto exit_frame;
+                       }
+                       ip += 2;
+                       if (new_method->alloca_size > rtm->alloca_size)
+                               g_error ("MINT_JMP to method which needs more stack space (%d > %d)", new_method->alloca_size, rtm->alloca_size); 
+                       rtm = frame->runtime_method = new_method;
+                       vt_sp = (unsigned char *) sp + rtm->stack_size;
+#if DEBUG_INTERP
+                       vtalloc = vt_sp;
+#endif
+                       locals = vt_sp + rtm->vt_stack_size;
+                       ip = rtm->new_body_start; /* bypass storing input args from callers frame */
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CALLI) {
+                       MonoMethodSignature *csignature;
+                       stackval *endsp = sp;
+
+                       frame->ip = ip;
+                       
+                       csignature = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       --sp;
+                       --endsp;
+                       child_frame.runtime_method = sp->data.p;
+
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+                       /* decrement by the actual number of args */
+                       sp -= csignature->param_count;
+                       child_frame.stack_args = sp;
+                       if (csignature->hasthis) {
+                               --sp;
+                               child_frame.obj = sp->data.p;
+                       } else {
+                               child_frame.obj = NULL;
+                       }
+                       if (csignature->hasthis && ((MonoObject *)child_frame.obj)->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       } else if (child_frame.runtime_method->method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
+                               child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_native_wrapper (child_frame.runtime_method->method, FALSE, FALSE), &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               goto handle_finally;
+                       }
+
+                       /* need to handle typedbyref ... */
+                       if (csignature->ret->type != MONO_TYPE_VOID) {
+                               *sp = *endsp;
+                               sp++;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CALLI_NAT) {
+                       MonoMethodSignature *csignature;
+                       stackval *endsp = sp;
+                       unsigned char *code = NULL;
+
+                       frame->ip = ip;
+                       
+                       csignature = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       --sp;
+                       --endsp;
+                       code = sp->data.p;
+                       child_frame.runtime_method = NULL;
+
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+                       /* decrement by the actual number of args */
+                       sp -= csignature->param_count;
+                       child_frame.stack_args = sp;
+                       if (csignature->hasthis) {
+                               --sp;
+                               child_frame.obj = sp->data.p;
+                       } else {
+                               child_frame.obj = NULL;
+                       }
+                       ves_pinvoke_method (&child_frame, csignature, (MonoFuncV) code, FALSE, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               if (context->search_for_handler) {
+                                       context->search_for_handler = 0;
+                                       goto handle_exception;
+                               }
+                               goto handle_finally;
+                       }
+
+                       /* need to handle typedbyref ... */
+                       if (csignature->ret->type != MONO_TYPE_VOID) {
+                               *sp = *endsp;
+                               sp++;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CALL) {
+                       stackval *endsp = sp;
+
+                       frame->ip = ip;
+                       
+                       child_frame.runtime_method = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+                       /* decrement by the actual number of args */
+                       sp -= child_frame.runtime_method->param_count;
+                       child_frame.stack_args = sp;
+                       if (child_frame.runtime_method->hasthis) {
+                               --sp;
+                               child_frame.obj = sp->data.p;
+                       } else {
+                               child_frame.obj = NULL;
+                       }
+                       if (child_frame.runtime_method->hasthis && !child_frame.runtime_method->valuetype && ((MonoObject *)child_frame.obj)->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               goto handle_finally;
+                       }
+
+                       /* need to handle typedbyref ... */
+                       *sp = *endsp;
+                       sp++;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_VCALL) {
+                       frame->ip = ip;
+                       
+                       child_frame.runtime_method = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ip += 2;
+
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+                       /* decrement by the actual number of args */
+                       sp -= child_frame.runtime_method->param_count;
+                       child_frame.stack_args = sp;
+                       if (child_frame.runtime_method->hasthis) {
+                               --sp;
+                               child_frame.obj = sp->data.p;
+                       } else {
+                               child_frame.obj = NULL;
+                       }
+
+                       if (child_frame.runtime_method->hasthis && !child_frame.runtime_method->valuetype && ((MonoObject *)child_frame.obj)->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               goto handle_finally;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CALLVIRT) {
+                       stackval *endsp = sp;
+                       MonoObject *this_arg;
+                       guint32 token;
+
+                       frame->ip = ip;
+                       
+                       token = * (unsigned short *)(ip + 1);
+                       ip += 2;
+                       child_frame.runtime_method = rtm->data_items [token];
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+
+                       /* decrement by the actual number of args */
+                       sp -= child_frame.runtime_method->param_count;
+                       child_frame.stack_args = sp;
+                       --sp;
+                       child_frame.obj = this_arg = sp->data.p;
+                       if (!this_arg)
+                               THROW_EX (mono_get_exception_null_reference(), ip - 2);
+                       child_frame.runtime_method = get_virtual_method (context->domain, child_frame.runtime_method, this_arg);
+
+                       if (this_arg->vtable->klass->valuetype && child_frame.runtime_method->valuetype) {
+                               child_frame.obj = (char *)this_arg + sizeof(MonoObject);
+                       }
+
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               if (context->search_for_handler) {
+                                       context->search_for_handler = 0;
+                                       goto handle_exception;
+                               }
+                               goto handle_finally;
+                       }
+
+                       /* need to handle typedbyref ... */
+                       *sp = *endsp;
+                       sp++;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_VCALLVIRT) {
+                       MonoObject *this_arg;
+                       guint32 token;
+
+                       frame->ip = ip;
+                       
+                       token = * (unsigned short *)(ip + 1);
+                       ip += 2;
+                       child_frame.runtime_method = rtm->data_items [token];
+                       sp->data.p = vt_sp;
+                       child_frame.retval = sp;
+
+                       /* decrement by the actual number of args */
+                       sp -= child_frame.runtime_method->param_count;
+                       child_frame.stack_args = sp;
+                       --sp;
+                       child_frame.obj = this_arg = sp->data.p;
+                       if (!this_arg)
+                               THROW_EX (mono_get_exception_null_reference(), ip - 2);
+                       child_frame.runtime_method = get_virtual_method (context->domain, child_frame.runtime_method, this_arg);
+
+                       if (this_arg->vtable->klass->valuetype && child_frame.runtime_method->valuetype) {
+                               child_frame.obj = (char *)this_arg + sizeof(MonoObject);
+                       }
+
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               if (context->search_for_handler) {
+                                       context->search_for_handler = 0;
+                                       goto handle_exception;
+                               }
+                               goto handle_finally;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CALLRUN)
+                       ves_runtime_method (frame, context);
+                       if (frame->ex) {
+                               rtm = NULL;
+                               goto handle_exception;
+                       }
+                       goto exit_frame;
+               MINT_IN_CASE(MINT_RET)
+                       --sp;
+                       *frame->retval = *sp;
+                       if (sp > frame->stack)
+                               g_warning ("ret: more values on stack: %d", sp-frame->stack);
+                       goto exit_frame;
+               MINT_IN_CASE(MINT_RET_VOID)
+                       if (sp > frame->stack)
+                               g_warning ("ret.void: more values on stack: %d", sp-frame->stack);
+                       goto exit_frame;
+               MINT_IN_CASE(MINT_RET_VT)
+                       i32 = READ32(ip + 1);
+                       --sp;
+                       memcpy(frame->retval->data.p, sp->data.p, i32);
+                       if (sp > frame->stack)
+                               g_warning ("ret.vt: more values on stack: %d", sp-frame->stack);
+                       goto exit_frame;
+               MINT_IN_CASE(MINT_BR_S)
+                       ip += (short) *(ip + 1);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BR)
+                       ip += (gint32) READ32(ip + 1);
+                       MINT_IN_BREAK;
+#define ZEROP_S(datamem, op) \
+       --sp; \
+       if (sp->data.datamem op 0) \
+               ip += * (gint16 *)(ip + 1); \
+       else \
+               ip += 2;
+
+#define ZEROP(datamem, op) \
+       --sp; \
+       if (sp->data.datamem op 0) \
+               ip += READ32(ip + 1); \
+       else \
+               ip += 3;
+
+               MINT_IN_CASE(MINT_BRFALSE_I4_S)
+                       ZEROP_S(i, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRFALSE_I8_S)
+                       ZEROP_S(l, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRFALSE_R8_S)
+                       ZEROP_S(f, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRFALSE_I4)
+                       ZEROP(i, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRFALSE_I8)
+                       ZEROP(l, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRFALSE_R8)
+                       ZEROP_S(f, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_I4_S)
+                       ZEROP_S(i, !=);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_I8_S)
+                       ZEROP_S(l, !=);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_R8_S)
+                       ZEROP_S(f, !=);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_I4)
+                       ZEROP(i, !=);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_I8)
+                       ZEROP(l, !=);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BRTRUE_R8)
+                       ZEROP(f, !=);
+                       MINT_IN_BREAK;
+#define CONDBR_S(cond) \
+       sp -= 2; \
+       if (cond) \
+               ip += * (gint16 *)(ip + 1); \
+       else \
+               ip += 2;
+#define BRELOP_S(datamem, op) \
+       CONDBR_S(sp[0].data.datamem op sp[1].data.datamem)
+
+#define CONDBR(cond) \
+       sp -= 2; \
+       if (cond) \
+               ip += READ32(ip + 1); \
+       else \
+               ip += 3;
+
+#define BRELOP(datamem, op) \
+       CONDBR(sp[0].data.datamem op sp[1].data.datamem)
+
+               MINT_IN_CASE(MINT_BEQ_I4_S)
+                       BRELOP_S(i, ==)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BEQ_I8_S)
+                       BRELOP_S(l, ==)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BEQ_R8_S)
+                       CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f == sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BEQ_I4)
+                       BRELOP(i, ==)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BEQ_I8)
+                       BRELOP(l, ==)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BEQ_R8)
+                       CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f == sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_I4_S)
+                       BRELOP_S(i, >=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_I8_S)
+                       BRELOP_S(l, >=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_R8_S)
+                       CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f >= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_I4)
+                       BRELOP(i, >=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_I8)
+                       BRELOP(l, >=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_R8)
+                       CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f >= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_I4_S)
+                       BRELOP_S(i, >)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_I8_S)
+                       BRELOP_S(l, >)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_R8_S)
+                       CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f > sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_I4)
+                       BRELOP(i, >)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_I8)
+                       BRELOP(l, >)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_R8)
+                       CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f > sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_I4_S)
+                       BRELOP_S(i, <)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_I8_S)
+                       BRELOP_S(l, <)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_R8_S)
+                       CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f < sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_I4)
+                       BRELOP(i, <)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_I8)
+                       BRELOP(l, <)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_R8)
+                       CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f < sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_I4_S)
+                       BRELOP_S(i, <=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_I8_S)
+                       BRELOP_S(l, <=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_R8_S)
+                       CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f <= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_I4)
+                       BRELOP(i, <=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_I8)
+                       BRELOP(l, <=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_R8)
+                       CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f <= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_I4_S)
+                       BRELOP_S(i, !=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_I8_S)
+                       BRELOP_S(l, !=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_R8_S)
+                       CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f != sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_I4)
+                       BRELOP(i, !=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_I8)
+                       BRELOP(l, !=)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BNE_UN_R8)
+                       CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f != sp[1].data.f)
+                       MINT_IN_BREAK;
+
+#define BRELOP_S_CAST(datamem, op, type) \
+       sp -= 2; \
+       if ((type) sp[0].data.datamem op (type) sp[1].data.datamem) \
+               ip += * (gint16 *)(ip + 1); \
+       else \
+               ip += 2;
+
+#define BRELOP_CAST(datamem, op, type) \
+       sp -= 2; \
+       if ((type) sp[0].data.datamem op (type) sp[1].data.datamem) \
+               ip += READ32(ip + 1); \
+       else \
+               ip += 3;
+
+               MINT_IN_CASE(MINT_BGE_UN_I4_S)
+                       BRELOP_S_CAST(i, >=, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_UN_I8_S)
+                       BRELOP_S_CAST(l, >=, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_UN_R8_S)
+                       CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f >= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_UN_I4)
+                       BRELOP_CAST(i, >=, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_UN_I8)
+                       BRELOP_CAST(l, >=, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGE_UN_R8)
+                       CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f >= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_I4_S)
+                       BRELOP_S_CAST(i, >, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_I8_S)
+                       BRELOP_S_CAST(l, >, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_R8_S)
+                       CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f > sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_I4)
+                       BRELOP_CAST(i, >, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_I8)
+                       BRELOP_CAST(l, >, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BGT_UN_R8)
+                       CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f > sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_I4_S)
+                       BRELOP_S_CAST(i, <=, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_I8_S)
+                       BRELOP_S_CAST(l, <=, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_R8_S)
+                       CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f <= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_I4)
+                       BRELOP_CAST(i, <=, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_I8)
+                       BRELOP_CAST(l, <=, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLE_UN_R8)
+                       CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f <= sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_I4_S)
+                       BRELOP_S_CAST(i, <, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_I8_S)
+                       BRELOP_S_CAST(l, <, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_R8_S)
+                       CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f < sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_I4)
+                       BRELOP_CAST(i, <, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_I8)
+                       BRELOP_CAST(l, <, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BLT_UN_R8)
+                       CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f < sp[1].data.f)
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SWITCH) {
+                       guint32 n;
+                       const unsigned short *st;
+                       ++ip;
+                       n = READ32 (ip);
+                       ip += 2;
+                       st = ip + 2 * n;
+                       --sp;
+                       if ((guint32)sp->data.i < n) {
+                               gint offset;
+                               ip += 2 * (guint32)sp->data.i;
+                               offset = READ32 (ip);
+                               ip = st + offset;
+                       } else {
+                               ip = st;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDIND_I1)
+                       ++ip;
+                       sp[-1].data.i = *(gint8*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_U1)
+                       ++ip;
+                       sp[-1].data.i = *(guint8*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_I2)
+                       ++ip;
+                       sp[-1].data.i = *(gint16*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_U2)
+                       ++ip;
+                       sp[-1].data.i = *(guint16*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_I4) /* Fall through */
+               MINT_IN_CASE(MINT_LDIND_U4)
+                       ++ip;
+                       sp[-1].data.i = *(gint32*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_I8)
+                       ++ip;
+                       sp[-1].data.l = *(gint64*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_I)
+                       ++ip;
+                       sp[-1].data.p = *(gpointer*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_R4)
+                       ++ip;
+                       sp[-1].data.f = *(gfloat*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_R8)
+                       ++ip;
+                       sp[-1].data.f = *(gdouble*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDIND_REF)
+                       ++ip;
+                       sp[-1].data.p = *(gpointer*)sp[-1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_REF) 
+                       ++ip;
+                       sp -= 2;
+                       * (gpointer *) sp->data.p = sp[1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_I1)
+                       ++ip;
+                       sp -= 2;
+                       * (gint8 *) sp->data.p = (gint8)sp[1].data.i;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_I2)
+                       ++ip;
+                       sp -= 2;
+                       * (gint16 *) sp->data.p = (gint16)sp[1].data.i;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_I4)
+                       ++ip;
+                       sp -= 2;
+                       * (gint32 *) sp->data.p = sp[1].data.i;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_I)
+                       ++ip;
+                       sp -= 2;
+                       * (mono_i *) sp->data.p = (mono_i)sp[1].data.p;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_I8)
+                       ++ip;
+                       sp -= 2;
+                       * (gint64 *) sp->data.p = sp[1].data.l;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_R4)
+                       ++ip;
+                       sp -= 2;
+                       * (float *) sp->data.p = (gfloat)sp[1].data.f;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STIND_R8)
+                       ++ip;
+                       sp -= 2;
+                       * (double *) sp->data.p = sp[1].data.f;
+                       MINT_IN_BREAK;
+#define BINOP(datamem, op) \
+       --sp; \
+       sp [-1].data.datamem = sp [-1].data.datamem op sp [0].data.datamem; \
+       ++ip;
+               MINT_IN_CASE(MINT_ADD_I4)
+                       BINOP(i, +);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_I8)
+                       BINOP(l, +);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_R8)
+                       BINOP(f, +);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD1_I4)
+                       ++sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_I4)
+                       BINOP(i, -);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_I8)
+                       BINOP(l, -);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_R8)
+                       BINOP(f, -);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB1_I4)
+                       --sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_I4)
+                       BINOP(i, *);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_I8)
+                       BINOP(l, *);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_R8)
+                       BINOP(f, *);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DIV_I4)
+                       if (sp [-1].data.i == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       if (sp [-1].data.i == (-1))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(i, /);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DIV_I8)
+                       if (sp [-1].data.l == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       if (sp [-1].data.l == (-1))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(l, /);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DIV_R8)
+                       BINOP(f, /);
+                       MINT_IN_BREAK;
+
+#define BINOP_CAST(datamem, op, type) \
+       --sp; \
+       sp [-1].data.datamem = (type)sp [-1].data.datamem op (type)sp [0].data.datamem; \
+       ++ip;
+               MINT_IN_CASE(MINT_DIV_UN_I4)
+                       if (sp [-1].data.i == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP_CAST(i, /, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_DIV_UN_I8)
+                       if (sp [-1].data.l == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP_CAST(l, /, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_REM_I4)
+                       if (sp [-1].data.i == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP(i, %);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_REM_I8)
+                       if (sp [-1].data.l == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP(l, %);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_REM_R8)
+                       /* FIXME: what do we actually do here? */
+                       --sp;
+                       sp [-1].data.f = fmod (sp [-1].data.f, sp [0].data.f);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_REM_UN_I4)
+                       if (sp [-1].data.i == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP_CAST(i, %, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_REM_UN_I8)
+                       if (sp [-1].data.l == 0)
+                               THROW_EX (mono_get_exception_divide_by_zero (), ip);
+                       BINOP_CAST(l, %, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_AND_I4)
+                       BINOP(i, &);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_AND_I8)
+                       BINOP(l, &);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_OR_I4)
+                       BINOP(i, |);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_OR_I8)
+                       BINOP(l, |);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_XOR_I4)
+                       BINOP(i, ^);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_XOR_I8)
+                       BINOP(l, ^);
+                       MINT_IN_BREAK;
+
+#define SHIFTOP(datamem, op) \
+       --sp; \
+       sp [-1].data.datamem = sp [-1].data.datamem op sp [0].data.i; \
+       ++ip;
+
+               MINT_IN_CASE(MINT_SHL_I4)
+                       SHIFTOP(i, <<);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SHL_I8)
+                       SHIFTOP(l, <<);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SHR_I4)
+                       SHIFTOP(i, >>);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SHR_I8)
+                       SHIFTOP(l, >>);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SHR_UN_I4)
+                       --sp;
+                       sp [-1].data.i = (guint32)sp [-1].data.i >> sp [0].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SHR_UN_I8)
+                       --sp;
+                       sp [-1].data.l = (guint64)sp [-1].data.l >> sp [0].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NEG_I4)
+                       sp [-1].data.i = - sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NEG_I8)
+                       sp [-1].data.l = - sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NEG_R8)
+                       sp [-1].data.f = - sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NOT_I4)
+                       sp [-1].data.i = ~ sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NOT_I8)
+                       sp [-1].data.l = ~ sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I1_I4)
+                       sp [-1].data.i = (gint8)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I1_I8)
+                       sp [-1].data.i = (gint8)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I1_R8)
+                       sp [-1].data.i = (gint8)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U1_I4)
+                       sp [-1].data.i = (guint8)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U1_I8)
+                       sp [-1].data.i = (guint8)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U1_R8)
+                       sp [-1].data.i = (guint8)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I2_I4)
+                       sp [-1].data.i = (gint16)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I2_I8)
+                       sp [-1].data.i = (gint16)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I2_R8)
+                       sp [-1].data.i = (gint16)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U2_I4)
+                       sp [-1].data.i = (guint16)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U2_I8)
+                       sp [-1].data.i = (guint16)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U2_R8)
+                       sp [-1].data.i = (guint16)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I4_R8)
+                       sp [-1].data.i = (gint32)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U4_I8)
+               MINT_IN_CASE(MINT_CONV_I4_I8)
+                       sp [-1].data.i = (gint32)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I4_I8_SP)
+                       sp [-2].data.i = (gint32)sp [-2].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U4_R8)
+                       sp [-1].data.i = (guint32)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I8_I4)
+                       sp [-1].data.l = sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I8_I4_SP)
+                       sp [-2].data.l = sp [-2].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I8_U4)
+                       sp [-1].data.l = (guint32)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_I8_R8)
+                       sp [-1].data.l = (gint64)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R4_I4)
+                       sp [-1].data.f = (float)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R4_I8)
+                       sp [-1].data.f = (float)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R4_R8)
+                       sp [-1].data.f = (float)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R8_I4)
+                       sp [-1].data.f = (double)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R8_I8)
+                       sp [-1].data.f = (double)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U8_I4)
+                       sp [-1].data.l = sp [-1].data.i & 0xffffffff;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_U8_R8)
+                       sp [-1].data.l = (guint64)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_CPOBJ) {
+                       MonoClass *vtklass;
+                       ++ip;
+                       vtklass = rtm->data_items[READ32 (ip)];
+                       ip += 2;
+                       sp -= 2;
+                       memcpy (sp [0].data.p, sp [1].data.p, mono_class_value_size (vtklass, NULL));
+                       MINT_IN_BREAK;
+               }
+#endif
+               MINT_IN_CASE(MINT_LDOBJ) {
+                       int size;
+                       void *p;
+                       c = rtm->data_items[* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       if (c->byval_arg.type != MONO_TYPE_VALUETYPE || c->byval_arg.data.klass->enumtype) {
+                               p = sp [-1].data.p;
+                               stackval_from_data (&c->byval_arg, &sp [-1], p, FALSE);
+                       } else {
+                               size = mono_class_value_size (c, NULL);
+                               p = sp [-1].data.p;
+                               sp [-1].data.p = vt_sp;
+                               memcpy(vt_sp, p, size);
+                               vt_sp += (size + 7) & ~7;
+                       }
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSTR)
+                       sp->data.p = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ++sp;
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NEWOBJ) {
+                       MonoClass *newobj_class;
+                       MonoMethodSignature *csig;
+                       stackval valuetype_this;
+                       guint32 token;
+                       stackval retval;
+
+                       frame->ip = ip;
+
+                       token = * (guint16 *)(ip + 1);
+                       ip += 2;
+
+                       child_frame.runtime_method = rtm->data_items [token];
+                       csig = mono_method_signature (child_frame.runtime_method->method);
+                       newobj_class = child_frame.runtime_method->method->klass;
+                       /*if (profiling_classes) {
+                               guint count = GPOINTER_TO_UINT (g_hash_table_lookup (profiling_classes, newobj_class));
+                               count++;
+                               g_hash_table_insert (profiling_classes, newobj_class, GUINT_TO_POINTER (count));
+                       }*/
+                               
+
+                       if (newobj_class->parent == mono_defaults.array_class) {
+                               sp -= csig->param_count;
+                               o = ves_array_create (context->domain, newobj_class, csig, sp);
+                               goto array_constructed;
+                       }
+
+                       /*
+                        * First arg is the object.
+                        */
+                       if (newobj_class->valuetype) {
+                               if (!newobj_class->enumtype && (newobj_class->byval_arg.type == MONO_TYPE_VALUETYPE)) {
+                                       child_frame.obj = vt_sp;
+                                       valuetype_this.data.p = vt_sp;
+                               } else {
+                                       memset (&valuetype_this, 0, sizeof (stackval));
+                                       child_frame.obj = &valuetype_this;
+                               }
+                       } else {
+                               if (newobj_class != mono_defaults.string_class) {
+                                       context->managed_code = 0;
+                                       o = mono_object_new_checked (context->domain, newobj_class, &error);
+                                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                       context->managed_code = 1;
+                                       if (*abort_requested)
+                                               mono_thread_interruption_checkpoint ();
+                                       child_frame.obj = o;
+                               } else {
+                                       child_frame.retval = &retval;
+                               }
+                       }
+
+                       if (csig->param_count) {
+                               sp -= csig->param_count;
+                               child_frame.stack_args = sp;
+                       } else {
+                               child_frame.stack_args = NULL;
+                       }
+
+                       g_assert (csig->call_convention == MONO_CALL_DEFAULT);
+
+                       child_frame.ip = NULL;
+                       child_frame.ex = NULL;
+
+                       ves_exec_method_with_context (&child_frame, context);
+
+                       context->current_frame = frame;
+
+                       if (child_frame.ex) {
+                               /*
+                                * An exception occurred, need to run finally, fault and catch handlers..
+                                */
+                               frame->ex = child_frame.ex;
+                               goto handle_finally;
+                       }
+                       /*
+                        * a constructor returns void, but we need to return the object we created
+                        */
+array_constructed:
+                       if (newobj_class->valuetype && !newobj_class->enumtype) {
+                               *sp = valuetype_this;
+                       } else if (newobj_class == mono_defaults.string_class) {
+                               *sp = retval;
+                       } else {
+                               sp->data.p = o;
+                       }
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CASTCLASS)
+                       c = rtm->data_items [*(guint16 *)(ip + 1)];
+                       if ((o = sp [-1].data.p)) {
+                               if (c->marshalbyref) {
+                                       MonoObject *isinst_obj = mono_object_isinst_mbyref_checked (o, c, &error);
+                                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                       if (!isinst_obj)
+                                               THROW_EX (mono_get_exception_invalid_cast (), ip);
+                               } else {
+                                       MonoVTable *vt = o->vtable;
+                                       MonoClass *oklass = vt->klass;
+                                       if (mono_class_is_interface (c)) {
+                                               g_error ("FIXME: interface method lookup");
+                                               if (c->interface_id > vt->max_interface_id /* || vt->interface_offsets [c->interface_id] == 0 */) {
+                                                       THROW_EX (mono_get_exception_invalid_cast (), ip);
+                                               }
+                                       } else if (c->rank) {
+                                               MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
+                                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                               if (!isinst_obj)
+                                                       THROW_EX (mono_get_exception_invalid_cast (), ip);
+                                       } else if (!mono_class_has_parent (oklass, c)) {
+                                               THROW_EX (mono_get_exception_invalid_cast (), ip);
+                                       }
+                               }
+                       }
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ISINST)
+                       c = rtm->data_items [*(guint16 *)(ip + 1)];
+                       if ((o = sp [-1].data.p)) {
+                               if (c->marshalbyref) {
+                                       MonoObject *isinst_obj = mono_object_isinst_mbyref_checked (o, c, &error);
+                                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                       if (!isinst_obj)
+                                               sp [-1].data.p = NULL;
+                               } else {
+                                       MonoVTable *vt = o->vtable;
+                                       MonoClass *oklass = vt->klass;
+                                       if (mono_class_is_interface (c)) {
+                                               g_error ("FIXME: interface method lookup");
+                                               if (c->interface_id > vt->max_interface_id /* || vt->interface_offsets [c->interface_id] == 0 */) {
+                                                       sp [-1].data.p = NULL;
+                                               }
+                                       } else if (c->rank) {
+                                               MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
+                                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                               if (!isinst_obj)
+                                                       sp [-1].data.p = NULL;
+                                       } else if (!mono_class_has_parent (oklass, c)) {
+                                               sp [-1].data.p = NULL;
+                                       }
+                               }
+                       }
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R_UN_I4)
+                       sp [-1].data.f = (double)(guint32)sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_R_UN_I8)
+                       sp [-1].data.f = (double)(guint64)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_UNBOX)
+                       c = rtm->data_items[*(guint16 *)(ip + 1)];
+                       
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+
+                       MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       if (!(isinst_obj || ((o->vtable->klass->rank == 0) && (o->vtable->klass->element_class == c->element_class))))
+                               THROW_EX (mono_get_exception_invalid_cast (), ip);
+
+                       if (c->byval_arg.type == MONO_TYPE_VALUETYPE && !c->enumtype) {
+                               g_error ("unbox: implement vt");
+                       } else {
+                               stackval_from_data (&c->byval_arg, &sp [-1], mono_object_unbox (o), FALSE);
+                       }
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_THROW)
+                       --sp;
+                       frame->ex_handler = NULL;
+                       if (!sp->data.p)
+                               sp->data.p = mono_get_exception_null_reference ();
+                       THROW_EX ((MonoException *)sp->data.p, ip);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLDA)
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       sp[-1].data.p = (char *)o + * (guint16 *)(ip + 1);
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CKNULL)
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+
+#define LDFLD(datamem, fieldtype) \
+       o = sp [-1].data.p; \
+       if (!o) \
+               THROW_EX (mono_get_exception_null_reference (), ip); \
+       sp[-1].data.datamem = * (fieldtype *)((char *)o + * (guint16 *)(ip + 1)) ; \
+       ip += 2;
+
+               MINT_IN_CASE(MINT_LDFLD_I1) LDFLD(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_U1) LDFLD(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_I2) LDFLD(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_U2) LDFLD(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_I4) LDFLD(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_I8) LDFLD(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_R4) LDFLD(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_R8) LDFLD(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_O) LDFLD(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFLD_P) LDFLD(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LDFLD_VT)
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       i32 = READ32(ip + 2);
+                       sp [-1].data.p = vt_sp;
+                       memcpy(sp [-1].data.p, (char *)o + * (guint16 *)(ip + 1), i32);
+                       vt_sp += (i32 + 7) & ~7;
+                       ip += 4;
+                       MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LDRMFLD) {
+                       gpointer tmp;
+                       MonoClassField *field;
+                       char *addr;
+
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       field = rtm->data_items[* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       if (o->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
+
+                               addr = mono_load_remote_field_checked (o, klass, field, &tmp, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       } else {
+                               addr = (char*)o + field->offset;
+                       }                               
+
+                       stackval_from_data (field->type, &sp [-1], addr, FALSE);
+                       MINT_IN_BREAK;
+               }
+
+               MINT_IN_CASE(MINT_LDRMFLD_VT) {
+                       MonoClassField *field;
+                       char *addr;
+                       gpointer tmp;
+
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       field = rtm->data_items[* (guint16 *)(ip + 1)];
+                       i32 = READ32(ip + 2);
+                       ip += 4;
+                       if (o->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
+                               addr = mono_load_remote_field_checked (o, klass, field, &tmp, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       } else {
+                               addr = (char*)o + field->offset;
+                       }                               
+
+                       sp [-1].data.p = vt_sp;
+                       memcpy(sp [-1].data.p, (char *)o + * (guint16 *)(ip + 1), i32);
+                       vt_sp += (i32 + 7) & ~7;
+                       memcpy(sp [-1].data.p, addr, i32);
+                       MINT_IN_BREAK;
+               }
+
+#define STFLD(datamem, fieldtype) \
+       o = sp [-2].data.p; \
+       if (!o) \
+               THROW_EX (mono_get_exception_null_reference (), ip); \
+       sp -= 2; \
+       * (fieldtype *)((char *)o + * (guint16 *)(ip + 1)) = sp[1].data.datamem; \
+       ip += 2;
+
+               MINT_IN_CASE(MINT_STFLD_I1) STFLD(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_U1) STFLD(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_I2) STFLD(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_U2) STFLD(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_I4) STFLD(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_I8) STFLD(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_R4) STFLD(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_R8) STFLD(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_O) STFLD(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STFLD_P) STFLD(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_STFLD_VT)
+                       o = sp [-2].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       i32 = READ32(ip + 2);
+                       sp -= 2;
+                       memcpy((char *)o + * (guint16 *)(ip + 1), sp [1].data.p, i32);
+                       vt_sp -= (i32 + 7) & ~7;
+                       ip += 4;
+                       MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_STRMFLD) {
+                       MonoClassField *field;
+
+                       o = sp [-2].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       
+                       field = rtm->data_items[* (guint16 *)(ip + 1)];
+                       ip += 2;
+
+                       if (o->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
+                               mono_store_remote_field_checked (o, klass, field, &sp [-1].data, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       } else
+                               stackval_to_data (field->type, &sp [-1], (char*)o + field->offset, FALSE);
+
+                       sp -= 2;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STRMFLD_VT) {
+                       MonoClassField *field;
+
+                       o = sp [-2].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       field = rtm->data_items[* (guint16 *)(ip + 1)];
+                       i32 = READ32(ip + 2);
+                       ip += 4;
+
+                       if (o->vtable->klass == mono_defaults.transparent_proxy_class) {
+                               MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
+                               mono_store_remote_field_checked (o, klass, field, &sp [-1].data, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       } else
+                               memcpy((char*)o + field->offset, sp [-1].data.p, i32);
+
+                       sp -= 2;
+                       vt_sp -= (i32 + 7) & ~7;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSFLDA) {
+                       MonoClassField *field = rtm->data_items[*(guint16 *)(ip + 1)];
+                       MonoVTable *vt = mono_class_vtable (context->domain, field->parent);
+                       gpointer addr;
+
+                       if (!vt->initialized) {
+                               frame->ip = ip;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ip += 2;
+
+                       if (context->domain->special_static_fields && (addr = g_hash_table_lookup (context->domain->special_static_fields, field)))
+                               sp->data.p = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
+                       else
+                               sp->data.p = (char*)(vt->vtable) + field->offset;
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSFLD) {
+                       MonoVTable *vt;
+                       MonoClassField *field;
+                       gpointer addr;
+
+                       field = rtm->data_items[*(guint16 *)(ip + 1)];
+                       vt = rtm->data_items [*(guint16 *)(ip + 2)];
+                       if (!vt->initialized) {
+                               frame->ip = ip;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ip += 3;
+                       if (context->domain->special_static_fields && (addr = g_hash_table_lookup (context->domain->special_static_fields, field)))
+                               addr = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
+                       else
+                               addr = (char*)(vt->vtable) + field->offset;
+
+                       stackval_from_data (field->type, sp, addr, FALSE);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSFLD_I4) {
+                       MonoClassField *field = rtm->data_items[*(guint16 *)(ip + 1)];
+                       MonoVTable *vt = rtm->data_items [*(guint16 *)(ip + 2)];
+                       if (!vt->initialized) {
+                               frame->ip = ip;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ip += 3;
+                       sp->data.i = * (gint32 *)((char*)(vt->vtable) + field->offset);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSFLD_O) {
+                       MonoClassField *field = rtm->data_items[*(guint16 *)(ip + 1)];
+                       MonoVTable *vt = rtm->data_items [*(guint16 *)(ip + 2)];
+                       if (!vt->initialized) {
+                               frame->ip = ip;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ip += 3;
+                       sp->data.p = * (gpointer *)((char*)(vt->vtable) + field->offset);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDSFLD_VT) {
+                       MonoVTable *vt;
+                       MonoClassField *field;
+                       guint32 token;
+                       gpointer addr;
+                       int size;
+
+                       token = * (guint16 *)(ip + 1);
+                       size = READ32(ip + 2);
+                       field = rtm->data_items[token];
+                       ip += 4;
+                                               
+                       vt = mono_class_vtable (context->domain, field->parent);
+                       if (!vt->initialized) {
+                               frame->ip = ip - 2;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       
+                       if (context->domain->special_static_fields && (addr = g_hash_table_lookup (context->domain->special_static_fields, field)))
+                               addr = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
+                       else
+                               addr = (char*)(vt->vtable) + field->offset;
+
+                       sp->data.p = vt_sp;
+                       vt_sp += (size + 7) & ~7;
+                       stackval_from_data (field->type, sp, addr, FALSE);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STSFLD) {
+                       MonoVTable *vt;
+                       MonoClassField *field;
+                       guint32 token;
+                       gpointer addr;
+
+                       token = * (guint16 *)(ip + 1);
+                       field = rtm->data_items[token];
+                       ip += 2;
+                       --sp;
+
+                       vt = mono_class_vtable (context->domain, field->parent);
+                       if (!vt->initialized) {
+                               frame->ip = ip - 2;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       
+                       if (context->domain->special_static_fields && (addr = g_hash_table_lookup (context->domain->special_static_fields, field)))
+                               addr = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
+                       else
+                               addr = (char*)(vt->vtable) + field->offset;
+
+                       stackval_to_data (field->type, sp, addr, FALSE);
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STSFLD_VT) {
+                       MonoVTable *vt;
+                       MonoClassField *field;
+                       guint32 token;
+                       gpointer addr;
+                       int size;
+
+                       token = * (guint16 *)(ip + 1);
+                       size = READ32(ip + 2);
+                       field = rtm->data_items[token];
+                       ip += 4;
+                                               
+                       vt = mono_class_vtable (context->domain, field->parent);
+                       if (!vt->initialized) {
+                               frame->ip = ip - 2;
+                               mono_runtime_class_init_full (vt, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       
+                       if (context->domain->special_static_fields && (addr = g_hash_table_lookup (context->domain->special_static_fields, field)))
+                               addr = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
+                       else
+                               addr = (char*)(vt->vtable) + field->offset;
+                       --sp;
+                       stackval_to_data (field->type, sp, addr, FALSE);
+                       vt_sp -= (size + 7) & ~7;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STOBJ_VT) {
+                       int size;
+                       c = rtm->data_items[* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       size = mono_class_value_size (c, NULL);
+                       memcpy(sp [-2].data.p, sp [-1].data.p, size);
+                       vt_sp -= (size + 7) & ~7;
+                       sp -= 2;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STOBJ) {
+                       int size;
+                       c = rtm->data_items[* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       size = mono_class_value_size (c, NULL);
+                       memcpy(sp [-2].data.p, &sp [-1].data, size);
+                       sp -= 2;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CONV_OVF_I4_UN_R8)
+                       if (sp [-1].data.f < 0 || sp [-1].data.f > MYGUINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint32)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U8_I4)
+                       if (sp [-1].data.i < 0)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.l = sp [-1].data.i;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U8_R8)
+               MINT_IN_CASE(MINT_CONV_OVF_I8_UN_R8)
+                       if (sp [-1].data.f < 0 || sp [-1].data.f > 9223372036854775807LL)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.l = (guint64)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I8_R8)
+                       if (sp [-1].data.f < MYGINT64_MIN || sp [-1].data.f > MYGINT64_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.l = (gint64)sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I4_UN_I8)
+                       if ((mono_u)sp [-1].data.l > MYGUINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (mono_u)sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_BOX)
+                       c = rtm->data_items [* (guint16 *)(ip + 1)];
+
+                       if (c->byval_arg.type == MONO_TYPE_VALUETYPE && !c->enumtype) {
+                               int size = mono_class_value_size (c, NULL);
+                               sp [-1].data.p = mono_value_box_checked (context->domain, c, sp [-1].data.p, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                               size = (size + 7) & ~7;
+                               vt_sp -= size;
+                       }                               
+                       else {
+                               stackval_to_data (&c->byval_arg, &sp [-1], (char*)&sp [-1], FALSE);
+                               sp [-1].data.p = mono_value_box_checked (context->domain, c, &sp [-1], &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       }
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_NEWARR)
+                       sp [-1].data.p = (MonoObject*) mono_array_new_checked (context->domain, rtm->data_items[*(guint16 *)(ip + 1)], sp [-1].data.i, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       ip += 2;
+                       /*if (profiling_classes) {
+                               guint count = GPOINTER_TO_UINT (g_hash_table_lookup (profiling_classes, o->vtable->klass));
+                               count++;
+                               g_hash_table_insert (profiling_classes, o->vtable->klass, GUINT_TO_POINTER (count));
+                       }*/
+
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLEN)
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       sp [-1].data.nati = mono_array_length ((MonoArray *)o);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_GETCHR) {
+                       MonoString *s;
+                       s = sp [-2].data.p;
+                       if (!s)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       i32 = sp [-1].data.i;
+                       if (i32 < 0 || i32 >= mono_string_length (s))
+                               THROW_EX (mono_get_exception_index_out_of_range (), ip);
+                       --sp;
+                       sp [-1].data.i = mono_string_chars(s)[i32];
+                       ++ip;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STRLEN)
+                       ++ip;
+                       sp [-1].data.i = mono_string_length ((MonoString*)sp [-1].data.p);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ARRAY_RANK)
+                       o = sp [-1].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+                       sp [-1].data.i = mono_object_class (sp [-1].data.p)->rank;
+                       ip++;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDELEMA) {
+                       guint32 esize;
+                       mono_u aindex;
+                       
+                       /*token = READ32 (ip)*/;
+                       ip += 2;
+                       sp -= 2;
+
+                       o = sp [0].data.p;
+
+                       aindex = sp [1].data.i;
+                       if (aindex >= mono_array_length ((MonoArray *) o))
+                               THROW_EX (mono_get_exception_index_out_of_range (), ip - 2);
+
+                       /* check the array element corresponds to token */
+                       esize = mono_array_element_size (((MonoArray *) o)->obj.vtable->klass);
+                       
+                       sp->data.p = mono_array_addr_with_size ((MonoArray *) o, esize, aindex);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDELEM_I1) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_U1) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_I2) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_U2) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_I4) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_U4) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_I8)  /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_I)  /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_R4) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_R8) /* fall through */
+               MINT_IN_CASE(MINT_LDELEM_REF) {
+                       MonoArray *o;
+                       mono_u aindex;
+
+                       sp -= 2;
+
+                       o = sp [0].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+
+                       aindex = sp [1].data.i;
+                       if (aindex >= mono_array_length (o))
+                               THROW_EX (mono_get_exception_index_out_of_range (), ip);
+
+                       /*
+                        * FIXME: throw mono_get_exception_array_type_mismatch () if needed 
+                        */
+                       switch (*ip) {
+                       case MINT_LDELEM_I1:
+                               sp [0].data.i = mono_array_get (o, gint8, aindex);
+                               break;
+                       case MINT_LDELEM_U1:
+                               sp [0].data.i = mono_array_get (o, guint8, aindex);
+                               break;
+                       case MINT_LDELEM_I2:
+                               sp [0].data.i = mono_array_get (o, gint16, aindex);
+                               break;
+                       case MINT_LDELEM_U2:
+                               sp [0].data.i = mono_array_get (o, guint16, aindex);
+                               break;
+                       case MINT_LDELEM_I:
+                               sp [0].data.nati = mono_array_get (o, mono_i, aindex);
+                               break;
+                       case MINT_LDELEM_I4:
+                               sp [0].data.i = mono_array_get (o, gint32, aindex);
+                               break;
+                       case MINT_LDELEM_U4:
+                               sp [0].data.i = mono_array_get (o, guint32, aindex);
+                               break;
+                       case MINT_LDELEM_I8:
+                               sp [0].data.l = mono_array_get (o, guint64, aindex);
+                               break;
+                       case MINT_LDELEM_R4:
+                               sp [0].data.f = mono_array_get (o, float, aindex);
+                               break;
+                       case MINT_LDELEM_R8:
+                               sp [0].data.f = mono_array_get (o, double, aindex);
+                               break;
+                       case MINT_LDELEM_REF:
+                               sp [0].data.p = mono_array_get (o, gpointer, aindex);
+                               break;
+                       default:
+                               ves_abort();
+                       }
+
+                       ++ip;
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_STELEM_I)  /* fall through */
+               MINT_IN_CASE(MINT_STELEM_I1) /* fall through */ 
+               MINT_IN_CASE(MINT_STELEM_I2) /* fall through */
+               MINT_IN_CASE(MINT_STELEM_I4) /* fall through */
+               MINT_IN_CASE(MINT_STELEM_I8) /* fall through */
+               MINT_IN_CASE(MINT_STELEM_R4) /* fall through */
+               MINT_IN_CASE(MINT_STELEM_R8) /* fall through */
+               MINT_IN_CASE(MINT_STELEM_REF) {
+                       mono_u aindex;
+
+                       sp -= 3;
+
+                       o = sp [0].data.p;
+                       if (!o)
+                               THROW_EX (mono_get_exception_null_reference (), ip);
+
+                       aindex = sp [1].data.i;
+                       if (aindex >= mono_array_length ((MonoArray *)o))
+                               THROW_EX (mono_get_exception_index_out_of_range (), ip);
+
+                       switch (*ip) {
+                       case MINT_STELEM_I:
+                               mono_array_set ((MonoArray *)o, mono_i, aindex, sp [2].data.nati);
+                               break;
+                       case MINT_STELEM_I1:
+                               mono_array_set ((MonoArray *)o, gint8, aindex, sp [2].data.i);
+                               break;
+                       case MINT_STELEM_I2:
+                               mono_array_set ((MonoArray *)o, gint16, aindex, sp [2].data.i);
+                               break;
+                       case MINT_STELEM_I4:
+                               mono_array_set ((MonoArray *)o, gint32, aindex, sp [2].data.i);
+                               break;
+                       case MINT_STELEM_I8:
+                               mono_array_set ((MonoArray *)o, gint64, aindex, sp [2].data.l);
+                               break;
+                       case MINT_STELEM_R4:
+                               mono_array_set ((MonoArray *)o, float, aindex, sp [2].data.f);
+                               break;
+                       case MINT_STELEM_R8:
+                               mono_array_set ((MonoArray *)o, double, aindex, sp [2].data.f);
+                               break;
+                       case MINT_STELEM_REF: {
+                               MonoObject *isinst_obj = mono_object_isinst_checked (sp [2].data.p, mono_object_class (o)->element_class, &error);
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                               if (sp [2].data.p && !isinst_obj)
+                                       THROW_EX (mono_get_exception_array_type_mismatch (), ip);
+                               mono_array_set ((MonoArray *)o, gpointer, aindex, sp [2].data.p);
+                       } break;
+                       default:
+                               ves_abort();
+                       }
+
+                       ++ip;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_CONV_OVF_I4_U4)
+                       if (sp [-1].data.i < 0)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I4_I8)
+                       if (sp [-1].data.l < MYGINT32_MIN || sp [-1].data.l > MYGINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint32) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I4_R8)
+                       if (sp [-1].data.f < MYGINT32_MIN || sp [-1].data.f > MYGINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint32) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U4_I4)
+                       if (sp [-1].data.i < 0)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U4_I8)
+                       if (sp [-1].data.l < 0 || sp [-1].data.l > MYGUINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint32) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U4_R8)
+                       if (sp [-1].data.f < 0 || sp [-1].data.f > MYGUINT32_MAX)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint32) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I2_I4)
+                       if (sp [-1].data.i < -32768 || sp [-1].data.i > 32767)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I2_I8)
+                       if (sp [-1].data.l < -32768 || sp [-1].data.l > 32767)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint16) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I2_R8)
+                       if (sp [-1].data.f < -32768 || sp [-1].data.f > 32767)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint16) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U2_I4)
+                       if (sp [-1].data.i < 0 || sp [-1].data.i > 65535)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U2_I8)
+                       if (sp [-1].data.l < 0 || sp [-1].data.l > 65535)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint16) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U2_R8)
+                       if (sp [-1].data.f < 0 || sp [-1].data.f > 65535)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint16) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I1_I4)
+                       if (sp [-1].data.i < -128 || sp [-1].data.i > 127)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I1_I8)
+                       if (sp [-1].data.l < -128 || sp [-1].data.l > 127)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint8) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_I1_R8)
+                       if (sp [-1].data.f < -128 || sp [-1].data.f > 127)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (gint8) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U1_I4)
+                       if (sp [-1].data.i < 0 || sp [-1].data.i > 255)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U1_I8)
+                       if (sp [-1].data.l < 0 || sp [-1].data.l > 255)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint8) sp [-1].data.l;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CONV_OVF_U1_R8)
+                       if (sp [-1].data.f < 0 || sp [-1].data.f > 255)
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       sp [-1].data.i = (guint8) sp [-1].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_LDELEM) 
+               MINT_IN_CASE(MINT_STELEM) 
+               MINT_IN_CASE(MINT_UNBOX_ANY) 
+
+               MINT_IN_CASE(MINT_REFANYVAL) ves_abort(); MINT_IN_BREAK;
+#endif
+               MINT_IN_CASE(MINT_CKFINITE)
+                       if (!isfinite(sp [-1].data.f))
+                               THROW_EX (mono_get_exception_arithmetic (), ip);
+                       ++ip;
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_MKREFANY) ves_abort(); MINT_IN_BREAK;
+#endif
+               MINT_IN_CASE(MINT_LDTOKEN)
+                       sp->data.p = vt_sp;
+                       vt_sp += 8;
+                       * (gpointer *)sp->data.p = rtm->data_items[*(guint16 *)(ip + 1)];
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_OVF_I4)
+                       if (CHECK_ADD_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(i, +);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_OVF_I8)
+                       if (CHECK_ADD_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(l, +);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_OVF_UN_I4)
+                       if (CHECK_ADD_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(i, +, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ADD_OVF_UN_I8)
+                       if (CHECK_ADD_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(l, +, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_OVF_I4)
+                       if (CHECK_MUL_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(i, *);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_OVF_I8)
+                       if (CHECK_MUL_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(l, *);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_OVF_UN_I4)
+                       if (CHECK_MUL_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(i, *, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MUL_OVF_UN_I8)
+                       if (CHECK_MUL_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(l, *, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_OVF_I4)
+                       if (CHECK_SUB_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(i, -);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_OVF_I8)
+                       if (CHECK_SUB_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP(l, -);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_OVF_UN_I4)
+                       if (CHECK_SUB_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(i, -, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_SUB_OVF_UN_I8)
+                       if (CHECK_SUB_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
+                               THROW_EX (mono_get_exception_overflow (), ip);
+                       BINOP_CAST(l, -, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ENDFINALLY)
+                       if (finally_ips) {
+                               ip = finally_ips->data;
+                               finally_ips = g_slist_remove (finally_ips, ip);
+                               goto main_loop;
+                       }
+                       if (frame->ex)
+                               goto handle_fault;
+                       ves_abort();
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LEAVE) /* Fall through */
+               MINT_IN_CASE(MINT_LEAVE_S)
+                       while (sp > frame->stack) {
+                               --sp;
+                       }
+                       frame->ip = ip;
+                       if (*ip == MINT_LEAVE_S) {
+                               ip += (short) *(ip + 1);
+                       } else {
+                               ip += (gint32) READ32 (ip + 1);
+                       }
+                       endfinally_ip = ip;
+                       if (frame->ex_handler != NULL && MONO_OFFSET_IN_HANDLER(frame->ex_handler, frame->ip - rtm->code)) {
+                               frame->ex_handler = NULL;
+                               frame->ex = NULL;
+                       }
+                       goto handle_finally;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_ICALL_V_V) 
+               MINT_IN_CASE(MINT_ICALL_V_P)
+               MINT_IN_CASE(MINT_ICALL_P_V) 
+               MINT_IN_CASE(MINT_ICALL_P_P)
+               MINT_IN_CASE(MINT_ICALL_PP_V)
+               MINT_IN_CASE(MINT_ICALL_PI_V)
+               MINT_IN_CASE(MINT_ICALL_PP_P)
+               MINT_IN_CASE(MINT_ICALL_PI_P)
+               MINT_IN_CASE(MINT_ICALL_PPP_V)
+               MINT_IN_CASE(MINT_ICALL_PPI_V)
+                       sp = do_icall (context, *ip, sp, rtm->data_items [*(guint16 *)(ip + 1)]);
+                       if (frame->ex != NULL)
+                               goto handle_exception;
+                       ip += 2;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MONO_LDPTR) 
+                       sp->data.p = rtm->data_items [*(guint16 *)(ip + 1)];
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MONO_NEWOBJ)
+                       sp->data.p = mono_object_new_checked (context->domain, rtm->data_items [*(guint16 *)(ip + 1)], &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       ip += 2;
+                       sp++;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MONO_FREE)
+                       ++ip;
+                       --sp;
+                       g_error ("that doesn't seem right");
+                       g_free (sp->data.p);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_MONO_RETOBJ)
+                       ++ip;
+                       sp--;
+                       stackval_from_data (mono_method_signature (frame->runtime_method->method)->ret, frame->retval, sp->data.p,
+                            mono_method_signature (frame->runtime_method->method)->pinvoke);
+                       if (sp > frame->stack)
+                               g_warning ("retobj: more values on stack: %d", sp-frame->stack);
+                       goto exit_frame;
+
+#define RELOP(datamem, op) \
+       --sp; \
+       sp [-1].data.i = sp [-1].data.datamem op sp [0].data.datamem; \
+       ++ip;
+               MINT_IN_CASE(MINT_CEQ_I4)
+                       RELOP(i, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CEQ0_I4)
+                       sp [-1].data.i = (sp [-1].data.i == 0);
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CEQ_I8)
+                       RELOP(l, ==);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CEQ_R8)
+                       --sp; 
+                       if (isunordered (sp [-1].data.f, sp [0].data.f))
+                               sp [-1].data.i = 0;
+                       else
+                               sp [-1].data.i = sp [-1].data.f == sp [0].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CGT_I4)
+                       RELOP(i, >);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CGT_I8)
+                       RELOP(l, >);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CGT_R8)
+                       --sp; 
+                       if (isunordered (sp [-1].data.f, sp [0].data.f))
+                               sp [-1].data.i = 0;
+                       else
+                               sp [-1].data.i = sp [-1].data.f > sp [0].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+
+#define RELOP_CAST(datamem, op, type) \
+       --sp; \
+       sp [-1].data.i = (type)sp [-1].data.datamem op (type)sp [0].data.datamem; \
+       ++ip;
+
+               MINT_IN_CASE(MINT_CGT_UN_I4)
+                       RELOP_CAST(i, >, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CGT_UN_I8)
+                       RELOP_CAST(l, >, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CGT_UN_R8)
+                       --sp; 
+                       if (isunordered (sp [-1].data.f, sp [0].data.f))
+                               sp [-1].data.i = 1;
+                       else
+                               sp [-1].data.i = sp [-1].data.f > sp [0].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_I4)
+                       RELOP(i, <);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_I8)
+                       RELOP(l, <);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_R8)
+                       --sp; 
+                       if (isunordered (sp [-1].data.f, sp [0].data.f))
+                               sp [-1].data.i = 0;
+                       else
+                               sp [-1].data.i = sp [-1].data.f < sp [0].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_UN_I4)
+                       RELOP_CAST(i, <, guint32);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_UN_I8)
+                       RELOP_CAST(l, <, guint64);
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CLT_UN_R8)
+                       --sp; 
+                       if (isunordered (sp [-1].data.f, sp [0].data.f))
+                               sp [-1].data.i = 1;
+                       else
+                               sp [-1].data.i = sp [-1].data.f < sp [0].data.f;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDFTN) {
+                       sp->data.p = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ++sp;
+                       ip += 2;
+                       MINT_IN_BREAK;
+               }
+               MINT_IN_CASE(MINT_LDVIRTFTN) {
+                       RuntimeMethod *m = rtm->data_items [* (guint16 *)(ip + 1)];
+                       ip += 2;
+                       --sp;
+                       if (!sp->data.p)
+                               THROW_EX (mono_get_exception_null_reference (), ip - 2);
+                               
+                       sp->data.p = get_virtual_method (context->domain, m, sp->data.p);
+                       ++sp;
+                       MINT_IN_BREAK;
+               }
+
+               MINT_IN_CASE(MINT_LDTHIS)
+                       sp->data.p = frame->obj;
+                       ++ip;
+                       ++sp; 
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STTHIS)
+                       --sp; 
+                       frame->obj = sp->data.p;
+                       ++ip;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDTHISA)
+                       sp->data.p = &frame->obj;
+                       ++ip;
+                       ++sp; 
+                       MINT_IN_BREAK;
+
+#define LDARG(datamem, argtype) \
+       sp->data.datamem = * (argtype *)(frame->args + * (guint16 *)(ip + 1)); \
+       ip += 2; \
+       ++sp; 
+       
+               MINT_IN_CASE(MINT_LDARG_I1) LDARG(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_U1) LDARG(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_I2) LDARG(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_U2) LDARG(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_I4) LDARG(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_I8) LDARG(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_R4) LDARG(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_R8) LDARG(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_O) LDARG(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDARG_P) LDARG(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LDARG_VT)
+                       sp->data.p = vt_sp;
+                       i32 = READ32(ip + 2);
+                       memcpy(sp->data.p, frame->args + * (guint16 *)(ip + 1), i32);
+                       vt_sp += (i32 + 7) & ~7;
+                       ip += 4;
+                       ++sp;
+                       MINT_IN_BREAK;
+
+#define STARG(datamem, argtype) \
+       --sp; \
+       * (argtype *)(frame->args + * (guint16 *)(ip + 1)) = sp->data.datamem; \
+       ip += 2; \
+       
+               MINT_IN_CASE(MINT_STARG_I1) STARG(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_U1) STARG(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_I2) STARG(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_U2) STARG(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_I4) STARG(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_I8) STARG(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_R4) STARG(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_R8) STARG(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_O) STARG(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STARG_P) STARG(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_STARG_VT) 
+                       i32 = READ32(ip + 2);
+                       --sp;
+                       memcpy(frame->args + * (guint16 *)(ip + 1), sp->data.p, i32);
+                       vt_sp -= (i32 + 7) & ~7;
+                       ip += 4;
+                       MINT_IN_BREAK;
+
+#define STINARG(datamem, argtype) \
+       do { \
+               int n = * (guint16 *)(ip + 1); \
+               * (argtype *)(frame->args + rtm->arg_offsets [n]) = frame->stack_args [n].data.datamem; \
+               ip += 2; \
+       } while (0)
+       
+               MINT_IN_CASE(MINT_STINARG_I1) STINARG(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_U1) STINARG(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_I2) STINARG(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_U2) STINARG(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_I4) STINARG(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_I8) STINARG(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_R4) STINARG(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_R8) STINARG(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_O) STINARG(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STINARG_P) STINARG(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_STINARG_VT) {
+                       int n = * (guint16 *)(ip + 1);
+                       i32 = READ32(ip + 2);
+                       memcpy (frame->args + rtm->arg_offsets [n], frame->stack_args [n].data.p, i32);
+                       ip += 4;
+                       MINT_IN_BREAK;
+               }
+
+               MINT_IN_CASE(MINT_LDARGA)
+                       sp->data.p = frame->args + * (guint16 *)(ip + 1);
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+
+#define LDLOC(datamem, argtype) \
+       sp->data.datamem = * (argtype *)(locals + * (guint16 *)(ip + 1)); \
+       ip += 2; \
+       ++sp; 
+       
+               MINT_IN_CASE(MINT_LDLOC_I1) LDLOC(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_U1) LDLOC(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_I2) LDLOC(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_U2) LDLOC(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_I4) LDLOC(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_I8) LDLOC(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_R4) LDLOC(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_R8) LDLOC(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_O) LDLOC(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_LDLOC_P) LDLOC(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LDLOC_VT)
+                       sp->data.p = vt_sp;
+                       i32 = READ32(ip + 2);
+                       memcpy(sp->data.p, locals + * (guint16 *)(ip + 1), i32);
+                       vt_sp += (i32 + 7) & ~7;
+                       ip += 4;
+                       ++sp;
+                       MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LDLOCA_S)
+                       sp->data.p = locals + * (guint16 *)(ip + 1);
+                       ip += 2;
+                       ++sp;
+                       MINT_IN_BREAK;
+
+#define STLOC(datamem, argtype) \
+       --sp; \
+       * (argtype *)(locals + * (guint16 *)(ip + 1)) = sp->data.datamem; \
+       ip += 2;
+       
+               MINT_IN_CASE(MINT_STLOC_I1) STLOC(i, gint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_U1) STLOC(i, guint8); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_I2) STLOC(i, gint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_U2) STLOC(i, guint16); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_I4) STLOC(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_I8) STLOC(l, gint64); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_R4) STLOC(f, float); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_R8) STLOC(f, double); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_O) STLOC(p, gpointer); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_P) STLOC(p, gpointer); MINT_IN_BREAK;
+
+#define STLOC_NP(datamem, argtype) \
+       * (argtype *)(locals + * (guint16 *)(ip + 1)) = sp [-1].data.datamem; \
+       ip += 2;
+
+               MINT_IN_CASE(MINT_STLOC_NP_I4) STLOC_NP(i, gint32); MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_STLOC_NP_O) STLOC_NP(p, gpointer); MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_STLOC_VT)
+                       i32 = READ32(ip + 2);
+                       --sp;
+                       memcpy(locals + * (guint16 *)(ip + 1), sp->data.p, i32);
+                       vt_sp -= (i32 + 7) & ~7;
+                       ip += 4;
+                       MINT_IN_BREAK;
+
+               MINT_IN_CASE(MINT_LOCALLOC)
+                       if (sp != frame->stack + 1) /*FIX?*/
+                               THROW_EX (mono_get_exception_execution_engine (NULL), ip);
+                       sp [-1].data.p = alloca (sp [-1].data.i);
+                       ++ip;
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_ENDFILTER) ves_abort(); MINT_IN_BREAK;
+#endif
+               MINT_IN_CASE(MINT_INITOBJ)
+                       --sp;
+                       memset (sp->data.vt, 0, READ32(ip + 1));
+                       ip += 3;
+                       MINT_IN_BREAK;
+               MINT_IN_CASE(MINT_CPBLK)
+                       sp -= 3;
+                       if (!sp [0].data.p || !sp [1].data.p)
+                               THROW_EX (mono_get_exception_null_reference(), ip - 1);
+                       ++ip;
+                       /* FIXME: value and size may be int64... */
+                       memcpy (sp [0].data.p, sp [1].data.p, sp [2].data.i);
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_CONSTRAINED_) {
+                       guint32 token;
+                       /* FIXME: implement */
+                       ++ip;
+                       token = READ32 (ip);
+                       ip += 2;
+                       MINT_IN_BREAK;
+               }
+#endif
+               MINT_IN_CASE(MINT_INITBLK)
+                       sp -= 3;
+                       if (!sp [0].data.p)
+                               THROW_EX (mono_get_exception_null_reference(), ip - 1);
+                       ++ip;
+                       /* FIXME: value and size may be int64... */
+                       memset (sp [0].data.p, sp [1].data.i, sp [2].data.i);
+                       MINT_IN_BREAK;
+#if 0
+               MINT_IN_CASE(MINT_NO_)
+                       /* FIXME: implement */
+                       ip += 2;
+                       MINT_IN_BREAK;
+#endif
+               MINT_IN_CASE(MINT_RETHROW)
+                       /* 
+                        * need to clarify what this should actually do:
+                        * start the search from the last found handler in
+                        * this method or continue in the caller or what.
+                        * Also, do we need to run finally/fault handlers after a retrow?
+                        * Well, this implementation will follow the usual search
+                        * for an handler, considering the current ip as throw spot.
+                        * We need to NULL frame->ex_handler for the later code to
+                        * actually run the new found handler.
+                        */
+                       frame->ex_handler = NULL;
+                       THROW_EX (frame->ex, ip - 1);
+                       MINT_IN_BREAK;
+               MINT_IN_DEFAULT
+                       g_print ("Unimplemented opcode: %04x %s at 0x%x\n", *ip, mono_interp_opname[*ip], ip-rtm->code);
+                       THROW_EX (mono_get_exception_execution_engine ("Unimplemented opcode"), ip);
+               }
+       }
+
+       g_assert_not_reached ();
+       /*
+        * Exception handling code.
+        * The exception object is stored in frame->ex.
+        */
+
+       handle_exception:
+       {
+               int i;
+               guint32 ip_offset;
+               MonoInvocation *inv;
+               MonoExceptionClause *clause;
+               /*char *message;*/
+               MonoObject *ex_obj;
+
+#if DEBUG_INTERP
+               if (tracing)
+                       g_print ("* Handling exception '%s' at IL_%04x\n", 
+                               frame->ex == NULL ? "** Unknown **" : mono_object_class (frame->ex)->name, 
+                               rtm == NULL ? 0 : frame->ip - rtm->code);
+#endif
+               if (die_on_exception)
+                       goto die_on_ex;
+
+               for (inv = frame; inv; inv = inv->parent) {
+                       MonoMethod *method;
+                       if (inv->runtime_method == NULL)
+                               continue;
+                       method = inv->runtime_method->method;
+                       if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
+                               continue;
+                       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
+                               continue;
+                       if (inv->ip == NULL)
+                               continue;
+                       ip_offset = inv->ip - inv->runtime_method->code;
+                       inv->ex_handler = NULL; /* clear this in case we are trhowing an exception while handling one  - this one wins */
+                       for (i = 0; i < inv->runtime_method->num_clauses; ++i) {
+                               clause = &inv->runtime_method->clauses [i];
+                               if (clause->flags <= 1 && MONO_OFFSET_IN_CLAUSE (clause, ip_offset)) {
+                                       if (!clause->flags) {
+                                               MonoObject *isinst_obj = mono_object_isinst_checked ((MonoObject*)frame->ex, clause->data.catch_class, &error);
+                                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                                               if (isinst_obj) {
+                                                       /* 
+                                                        * OK, we found an handler, now we need to execute the finally
+                                                        * and fault blocks before branching to the handler code.
+                                                        */
+                                                       inv->ex_handler = clause;
+#if DEBUG_INTERP
+                                                       if (tracing)
+                                                               g_print ("* Found handler at '%s'\n", method->name);
+#endif
+                                                       goto handle_finally;
+                                               }
+                                       } else {
+                                               /* FIXME: handle filter clauses */
+                                               g_assert (0);
+                                       }
+                               }
+                       }
+               }
+               /*
+                * If we get here, no handler was found: print a stack trace.
+                */
+               for (inv = frame; inv; inv = inv->parent) {
+                       if (inv->invoke_trap)
+                               goto handle_finally;
+               }
+die_on_ex:
+               ex_obj = (MonoObject*)frame->ex;
+               mono_unhandled_exception (ex_obj);
+               exit (1);
+       }
+       handle_finally:
+       {
+               int i;
+               guint32 ip_offset;
+               MonoExceptionClause *clause;
+               GSList *old_list = finally_ips;
+               MonoMethod *method = frame->runtime_method->method;
+               MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               
+#if DEBUG_INTERP
+               if (tracing)
+                       g_print ("* Handle finally IL_%04x\n", endfinally_ip == NULL ? 0 : endfinally_ip - rtm->code);
+#endif
+               if (rtm == NULL || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) 
+                               || (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))) {
+                       goto exit_frame;
+               }
+               ip_offset = frame->ip - rtm->code;
+
+               if (endfinally_ip != NULL)
+                       finally_ips = g_slist_prepend(finally_ips, (void *)endfinally_ip);
+               for (i = 0; i < header->num_clauses; ++i)
+                       if (frame->ex_handler == &rtm->clauses [i])
+                               break;
+               while (i > 0) {
+                       --i;
+                       clause = &rtm->clauses [i];
+                       if (MONO_OFFSET_IN_CLAUSE (clause, ip_offset) && (endfinally_ip == NULL || !(MONO_OFFSET_IN_CLAUSE (clause, endfinally_ip - rtm->code)))) {
+                               if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
+                                       ip = rtm->code + clause->handler_offset;
+                                       finally_ips = g_slist_prepend (finally_ips, (gpointer) ip);
+#if DEBUG_INTERP
+                                       if (tracing)
+                                               g_print ("* Found finally at IL_%04x with exception: %s\n", clause->handler_offset, frame->ex? "yes": "no");
+#endif
+                               }
+                       }
+               }
+
+               endfinally_ip = NULL;
+
+               if (old_list != finally_ips && finally_ips) {
+                       ip = finally_ips->data;
+                       finally_ips = g_slist_remove (finally_ips, ip);
+                       sp = frame->stack; /* spec says stack should be empty at endfinally so it should be at the start too */
+                       goto main_loop;
+               }
+
+               /*
+                * If an exception is set, we need to execute the fault handler, too,
+                * otherwise, we continue normally.
+                */
+               if (frame->ex)
+                       goto handle_fault;
+               ves_abort();
+       }
+       handle_fault:
+       {
+               int i;
+               guint32 ip_offset;
+               MonoExceptionClause *clause;
+               MonoMethod *method = frame->runtime_method->method;
+               MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               
+#if DEBUG_INTERP
+               if (tracing)
+                       g_print ("* Handle fault\n");
+#endif
+               ip_offset = frame->ip - rtm->code;
+               for (i = 0; i < header->num_clauses; ++i) {
+                       clause = &rtm->clauses [i];
+                       if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT && MONO_OFFSET_IN_CLAUSE (clause, ip_offset)) {
+                               ip = rtm->code + clause->handler_offset;
+#if DEBUG_INTERP
+                               if (tracing)
+                                       g_print ("* Executing handler at IL_%04x\n", clause->handler_offset);
+#endif
+                               goto main_loop;
+                       }
+               }
+               /*
+                * If the handler for the exception was found in this method, we jump
+                * to it right away, otherwise we return and let the caller run
+                * the finally, fault and catch blocks.
+                * This same code should be present in the endfault opcode, but it
+                * is corrently not assigned in the ECMA specs: LAMESPEC.
+                */
+               if (frame->ex_handler) {
+#if DEBUG_INTERP
+                       if (tracing)
+                               g_print ("* Executing handler at IL_%04x\n", frame->ex_handler->handler_offset);
+#endif
+                       ip = rtm->code + frame->ex_handler->handler_offset;
+                       sp = frame->stack;
+                       vt_sp = (unsigned char *) sp + rtm->stack_size;
+                       sp->data.p = frame->ex;
+                       ++sp;
+                       goto main_loop;
+               }
+               goto exit_frame;
+       }
+exit_frame:
+       DEBUG_LEAVE ();
+}
+
+void
+ves_exec_method (MonoInvocation *frame)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       ThreadContext context_struct;
+       MonoError error;
+       jmp_buf env;
+
+       frame->ex = NULL;
+
+       if (setjmp(env)) {
+               mono_unhandled_exception ((MonoObject*)frame->ex);
+               return;
+       }
+       if (context == NULL) {
+               context = &context_struct;
+               context_struct.domain = mono_domain_get ();
+               context_struct.base_frame = frame;
+               context_struct.current_frame = NULL;
+               context_struct.env_frame = frame;
+               context_struct.current_env = &env;
+               context_struct.search_for_handler = 0;
+               context_struct.managed_code = 0;
+               mono_native_tls_set_value (thread_context_id, context);
+       }
+       frame->ip = NULL;
+       frame->parent = context->current_frame;
+       frame->runtime_method = mono_interp_get_runtime_method (context->domain, frame->method, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       context->managed_code = 1;
+       ves_exec_method_with_context (frame, context);
+       context->managed_code = 0;
+       if (frame->ex) {
+               if (context != &context_struct && context->current_env) {
+                       context->env_frame->ex = frame->ex;
+                       longjmp (*context->current_env, 1);
+               }
+               else
+                       mono_unhandled_exception ((MonoObject*)frame->ex);
+       }
+       if (context->base_frame == frame)
+               mono_native_tls_set_value (thread_context_id, NULL);
+       else
+               context->current_frame = frame->parent;
+}
+
+static int 
+ves_exec (MonoDomain *domain, MonoAssembly *assembly, int argc, char *argv[])
+{
+       MonoImage *image = mono_assembly_get_image (assembly);
+       MonoMethod *method;
+       MonoError error;
+       int rval;
+
+       method = mono_get_method_checked (image, mono_image_get_entry_point (image), NULL, NULL, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       if (!method)
+               g_error ("No entry point method found in %s", mono_image_get_filename (image));
+
+       rval = mono_runtime_run_main_checked (method, argc, argv, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+       return rval;
+}
+
+static void
+usage (void)
+{
+       fprintf (stderr,
+                "mint %s, the Mono ECMA CLI interpreter, (C) 2001, 2002 Ximian, Inc.\n\n"
+                "Usage is: mint [options] executable args...\n\n", VERSION);
+       fprintf (stderr,
+                "Runtime Debugging:\n"
+#ifdef DEBUG_INTERP
+                "   --debug\n"
+#endif
+                "   --dieonex\n"
+                "   --noptr\t\t\tdon't print pointer addresses in trace output\n"
+                "   --opcode-count\n"
+                "   --print-vtable\n"
+                "   --traceclassinit\n"
+                "\n"
+                "Development:\n"
+                "   --debug method_name\n"
+                "   --profile\n"
+                "   --trace\n"
+                "   --traceops\n"
+                "   --regression\n"
+                "\n"
+                "Runtime:\n"
+                "   --config filename  load the specified config file instead of the default\n"
+                "   --workers n        maximum number of worker threads\n"
+               );
+       exit (1);
+}
+
+static void
+add_signal_handler (int signo, void (*handler)(int))
+{
+#ifdef HOST_WIN32
+       signal (signo, handler);
+#else
+       struct sigaction sa;
+
+       sa.sa_handler = handler;
+       sigemptyset (&sa.sa_mask);
+       sa.sa_flags = 0;
+
+       g_assert (sigaction (signo, &sa, NULL) != -1);
+#endif
+}
+
+static void
+segv_handler (int signum)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoException *segv_exception;
+
+       if (context == NULL)
+               return;
+       segv_exception = mono_get_exception_null_reference ();
+       segv_exception->message = mono_string_new (mono_domain_get (), "Null Reference (SIGSEGV)");
+       mono_raise_exception (segv_exception);
+}
+
+
+static void
+quit_handler (int signum)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoException *quit_exception;
+
+       if (context == NULL)
+               return;
+       quit_exception = mono_get_exception_execution_engine ("Interrupted (SIGQUIT).");
+       mono_raise_exception (quit_exception);
+}
+
+static void
+abrt_handler (int signum)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoException *abrt_exception;
+
+       if (context == NULL)
+               return;
+       abrt_exception = mono_get_exception_execution_engine ("Abort (SIGABRT).");
+       mono_raise_exception (abrt_exception);
+}
+
+#if 0
+static void
+thread_abort_handler (int signum)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoException *exc;
+
+       if (context == NULL)
+               return;
+
+       exc = mono_thread_request_interruption (context->managed_code); 
+       if (exc) mono_raise_exception (exc);
+}
+#endif
+
+static MonoBoolean
+interp_ves_icall_get_frame_info (gint32 skip, MonoBoolean need_file_info, 
+                         MonoReflectionMethod **method, 
+                         gint32 *iloffset, gint32 *native_offset,
+                         MonoString **file, gint32 *line, gint32 *column)
+{
+       ThreadContext *context = mono_native_tls_get_value (thread_context_id);
+       MonoInvocation *inv = context->current_frame;
+       MonoError error;
+       int i;
+
+       for (i = 0; inv && i < skip; inv = inv->parent)
+               if (inv->runtime_method != NULL)
+                       ++i;
+
+       if (iloffset)
+               *iloffset = 0;
+       if (native_offset)
+               *native_offset = 0;
+       if (method) {
+               if (inv == NULL) {
+                       *method = NULL;
+               } else {
+                       *method = mono_method_get_object_checked (context->domain, inv->runtime_method->method, NULL, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               }
+       }
+       if (line)
+               *line = 0;
+       if (need_file_info) {
+               if (column)
+                       *column = 0;
+               if (file)
+                       *file = mono_string_new (mono_domain_get (), "unknown");
+       }
+
+       return TRUE;
+}
+
+static MonoArray *
+interp_ves_icall_get_trace (MonoException *exc, gint32 skip, MonoBoolean need_file_info)
+{
+       MonoDomain *domain = mono_domain_get ();
+       MonoArray *res;
+       MonoArray *ta = exc->trace_ips;
+       MonoError error;
+       int i, len;
+
+       if (ta == NULL) {
+               /* Exception is not thrown yet */
+               MonoArray *array = mono_array_new_checked (domain, mono_defaults.stack_frame_class, 0, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               return array;
+       }
+       
+       len = mono_array_length (ta);
+
+       res = mono_array_new_checked (domain, mono_defaults.stack_frame_class, len > skip ? len - skip : 0, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       for (i = skip; i < len / 2; i++) {
+               MonoStackFrame *sf = (MonoStackFrame *)mono_object_new_checked (domain, mono_defaults.stack_frame_class, &error);
+               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               gushort *ip = mono_array_get (ta, gpointer, 2 * i + 1);
+               RuntimeMethod *rtm = mono_array_get (ta, gpointer, 2 * i);
+
+               if (rtm != NULL) {
+                       sf->method = mono_method_get_object_checked (domain, rtm->method, NULL, &error);
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       sf->native_offset = ip - rtm->code;
+               }
+
+#if 0
+               sf->il_offset = mono_debug_il_offset_from_address (ji->method, sf->native_offset, domain);
+
+               if (need_file_info) {
+                       gchar *filename;
+                       
+                       filename = mono_debug_source_location_from_address (ji->method, sf->native_offset, &sf->line, domain);
+
+                       sf->filename = filename? mono_string_new (domain, filename): NULL;
+                       sf->column = 0;
+
+                       g_free (filename);
+               }
+#endif
+
+               mono_array_set (res, gpointer, i, sf);
+       }
+
+       return res;
+}
+
+static MonoObject *
+ves_icall_System_Delegate_CreateDelegate_internal (MonoReflectionType *type, MonoObject *target, MonoReflectionMethod *info)
+{
+       MonoClass *delegate_class = mono_class_from_mono_type (type->type);
+       MonoObject *delegate;
+       MonoError error;
+
+       g_assert (delegate_class->parent == mono_defaults.multicastdelegate_class);
+
+       delegate = mono_object_new_checked (mono_object_domain (type), delegate_class, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       interp_delegate_ctor (mono_object_domain (type), delegate, target, mono_interp_get_runtime_method (mono_get_root_domain (), info->method, &error));
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       return delegate;
+}
+
+
+typedef struct
+{
+       MonoDomain *domain;
+       int enable_debugging;
+       char *file;
+       int argc;
+       char **argv;
+} MainThreadArgs;
+
+static void main_thread_handler (gpointer user_data)
+{
+       MainThreadArgs *main_args=(MainThreadArgs *)user_data;
+       MonoAssembly *assembly;
+
+       if (main_args->enable_debugging) {
+               mono_debug_init (MONO_DEBUG_FORMAT_MONO);
+       }
+
+       assembly = mono_domain_assembly_open (main_args->domain, main_args->file);
+
+       if (!assembly){
+               fprintf (stderr, "Can not open image %s\n", main_args->file);
+               exit (1);
+       }
+
+       ves_exec (main_args->domain, assembly, main_args->argc, main_args->argv);
+}
+
+static void
+interp_mono_runtime_install_handlers (void)
+{
+       add_signal_handler (SIGSEGV, segv_handler);
+       add_signal_handler (SIGINT, quit_handler);
+       add_signal_handler (SIGABRT, abrt_handler);
+#if 0
+       add_signal_handler (mono_thread_get_abort_signal (), thread_abort_handler);
+#endif
+}
+
+static void
+quit_function (MonoDomain *domain, gpointer user_data)
+{
+       mono_profiler_shutdown ();
+       
+       mono_runtime_cleanup (domain);
+       mono_domain_free (domain, TRUE);
+
+}
+
+void
+mono_interp_cleanup(MonoDomain *domain)
+{
+       quit_function (domain, NULL);
+}
+
+int
+mono_interp_exec(MonoDomain *domain, MonoAssembly *assembly, int argc, char *argv[])
+{
+       return ves_exec (domain, assembly, argc, argv);
+}
+
+static gpointer
+interp_get_imt_trampoline (MonoVTable *vtable, int imt_slot_index)
+{
+       // FIXME: implement me
+       return NULL;
+}
+
+static gpointer
+interp_create_ftnptr (MonoDomain *domain, gpointer addr)
+{
+       // FIXME: true on all arch?
+       return addr;
+}
+
+// FIXME
+static gboolean
+mono_current_thread_has_handle_block_guard (void)
+{
+       return FALSE;
+}
+
+// FIXME
+static gboolean
+mono_above_abort_threshold (void)
+{
+       return FALSE;
+}
+
+MonoDomain *
+mono_interp_init(const char *file)
+{
+       MonoDomain *domain;
+       MonoRuntimeCallbacks callbacks;
+       MonoRuntimeExceptionHandlingCallbacks ecallbacks;
+       MonoError error;
+
+       g_log_set_always_fatal (G_LOG_LEVEL_ERROR);
+       g_log_set_fatal_mask (G_LOG_DOMAIN, G_LOG_LEVEL_ERROR);
+
+       mono_native_tls_alloc (&thread_context_id, NULL);
+    mono_native_tls_set_value (thread_context_id, NULL);
+       mono_os_mutex_init_recursive (&runtime_method_lookup_section);
+       mono_os_mutex_init_recursive (&create_method_pointer_mutex);
+
+       mono_tls_init_runtime_keys ();
+
+       // TODO: use callbacks?
+       interp_mono_runtime_install_handlers ();
+       mono_interp_transform_init ();
+
+       memset (&callbacks, 0, sizeof (callbacks));
+       // TODO: replace with `mono_install_callbacks`
+       callbacks.compile_method = mono_create_method_pointer;
+       callbacks.runtime_invoke = interp_mono_runtime_invoke;
+       callbacks.get_imt_trampoline = interp_get_imt_trampoline;
+       callbacks.create_ftnptr = interp_create_ftnptr;
+#ifndef DISABLE_REMOTING
+       callbacks.create_remoting_trampoline = interp_create_remoting_trampoline;
+#endif
+       callbacks.create_jit_trampoline = interp_create_trampoline;
+       mono_install_callbacks (&callbacks);
+
+
+       memset (&ecallbacks, 0, sizeof (ecallbacks));
+       ecallbacks.mono_raise_exception = interp_ex_handler;
+       ecallbacks.mono_current_thread_has_handle_block_guard = mono_current_thread_has_handle_block_guard;
+       ecallbacks.mono_above_abort_threshold = mono_above_abort_threshold;
+#if 0
+       // FIXME: ...
+       mono_install_stack_walk (interp_walk_stack);
+#endif
+       mono_install_eh_callbacks (&ecallbacks);
+
+       mono_install_runtime_cleanup (quit_function);
+
+       abort_requested = mono_thread_interruption_request_flag ();
+
+       domain = mono_init_from_assembly (file, file);
+#ifdef __hpux /* generates very big stack frames */
+       mono_threads_set_default_stacksize(32*1024*1024);
+#endif
+       mono_icall_init ();
+       /* TODO: this should use ves_icall_get_frame from mini-exceptions.c? */
+       mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info", interp_ves_icall_get_frame_info);
+       /* TODO: this should use ves_icall_get_trace from mini-exceptions.c? */
+       mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace", interp_ves_icall_get_trace);
+       mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers", interp_mono_runtime_install_handlers);
+       mono_add_internal_call ("System.Delegate::CreateDelegate_internal", ves_icall_System_Delegate_CreateDelegate_internal);
+
+       mono_register_jit_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", mono_create_icall_signature ("object"), FALSE);
+
+       mono_runtime_init_checked (domain, NULL, NULL, &error);
+       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+
+       mono_thread_attach (domain);
+       return domain;
+}
+
+typedef int (*TestMethod) (void);
+
+static void
+interp_regression_step (MonoImage *image, int verbose, int *total_run, int *total, GTimer *timer, MonoDomain *domain)
+{
+       int result, expected, failed, cfailed, run;
+       double elapsed, transform_time;
+       int i;
+       MonoObject *result_obj;
+       static gboolean filter_method_init = FALSE;
+       static const char *filter_method = NULL;
+
+       g_print ("Test run: image=%s\n", mono_image_get_filename (image));
+       cfailed = failed = run = 0;
+       transform_time = elapsed = 0.0;
+
+#if 0
+       /* fixme: ugly hack - delete all previously compiled methods */
+       if (domain_jit_info (domain)) {
+               g_hash_table_destroy (domain_jit_info (domain)->jit_trampoline_hash);
+               domain_jit_info (domain)->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
+               mono_internal_hash_table_destroy (&(domain->jit_code_hash));
+               mono_jit_code_hash_init (&(domain->jit_code_hash));
+       }
+#endif
+
+       g_timer_start (timer);
+       for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
+               MonoError error;
+               MonoMethod *method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL, NULL, &error);
+               if (!method) {
+                       mono_error_cleanup (&error); /* FIXME don't swallow the error */
+                       continue;
+               }
+
+               if (!filter_method_init) {
+                       filter_method = g_getenv ("INTERP_FILTER_METHOD");
+                       filter_method_init = TRUE;
+               }
+               gboolean filter = FALSE;
+               if (filter_method) {
+                       const char *name = filter_method;
+
+                       if ((strchr (name, '.') > name) || strchr (name, ':')) {
+                               MonoMethodDesc *desc = mono_method_desc_new (name, TRUE);
+                               filter = mono_method_desc_full_match (desc, method);
+                               mono_method_desc_free (desc);
+                       } else {
+                               filter = strcmp (method->name, name) == 0;
+                       }
+               } else { // no filter
+                       filter = TRUE;
+               }
+               if (strncmp (method->name, "test_", 5) == 0 && filter) {
+                       MonoError interp_error;
+                       MonoObject *exc = NULL;
+
+                       result_obj = interp_mono_runtime_invoke (method, NULL, NULL, &exc, &interp_error);
+                       if (!mono_error_ok (&interp_error)) {
+                               cfailed++;
+                               g_print ("Test '%s' execution failed.\n", method->name);
+                       } else if (exc != NULL) {
+                               g_print ("Exception in Test '%s' occured:\n", method->name);
+                               mono_object_describe (exc);
+                               run++;
+                               failed++;
+                       } else {
+                               result = *(gint32 *) mono_object_unbox (result_obj);
+                               expected = atoi (method->name + 5);  // FIXME: oh no.
+                               run++;
+
+                               if (result != expected) {
+                                       failed++;
+                                       g_print ("Test '%s' failed result (got %d, expected %d).\n", method->name, result, expected);
+                               }
+                       }
+               }
+       }
+       g_timer_stop (timer);
+       elapsed = g_timer_elapsed (timer, NULL);
+       if (failed > 0 || cfailed > 0){
+               g_print ("Results: total tests: %d, failed: %d, cfailed: %d (pass: %.2f%%)\n",
+                               run, failed, cfailed, 100.0*(run-failed-cfailed)/run);
+       } else {
+               g_print ("Results: total tests: %d, all pass \n",  run);
+       }
+
+       g_print ("Elapsed time: %f secs (%f, %f)\n\n", elapsed,
+                       elapsed - transform_time, transform_time);
+       *total += failed + cfailed;
+       *total_run += run;
+}
+static int
+interp_regression (MonoImage *image, int verbose, int *total_run)
+{
+       MonoMethod *method;
+       GTimer *timer = g_timer_new ();
+       MonoDomain *domain = mono_domain_get ();
+       guint32 i;
+       int total;
+
+       /* load the metadata */
+       for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
+               MonoError error;
+               method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL, NULL, &error);
+               if (!method) {
+                       mono_error_cleanup (&error);
+                       continue;
+               }
+               mono_class_init (method->klass);
+       }
+
+       total = 0;
+       *total_run = 0;
+       interp_regression_step (image, verbose, total_run, &total, timer, domain);
+
+       g_timer_destroy (timer);
+       return total;
+}
+
+int
+interp_regression_list (int verbose, int count, char *images [])
+{
+       int i, total, total_run, run;
+       
+       total_run = total = 0;
+       for (i = 0; i < count; ++i) {
+               MonoAssembly *ass = mono_assembly_open (images [i], NULL);
+               if (!ass) {
+                       g_warning ("failed to load assembly: %s", images [i]);
+                       continue;
+               }
+               total += interp_regression (mono_assembly_get_image (ass), verbose, &run);
+               total_run += run;
+       }
+       if (total > 0) {
+               g_print ("Overall results: tests: %d, failed: %d (pass: %.2f%%)\n", total_run, total, 100.0*(total_run-total)/total_run);
+       } else {
+               g_print ("Overall results: tests: %d, 100%% pass\n", total_run);
+       }
+       
+       return total;
+}
+
diff --git a/mono/mini/interpreter/interp.h b/mono/mini/interpreter/interp.h
new file mode 100644 (file)
index 0000000..a6837b4
--- /dev/null
@@ -0,0 +1,144 @@
+#include <setjmp.h>
+#include <glib.h>
+#include <mono/metadata/loader.h>
+#include <mono/metadata/object.h>
+#include <mono/metadata/domain-internals.h>
+#include <mono/metadata/class-internals.h>
+#include "config.h"
+
+enum {
+       VAL_I32     = 0,
+       VAL_DOUBLE  = 1,
+       VAL_I64     = 2,
+       VAL_VALUET  = 3,
+       VAL_POINTER = 4,
+       VAL_NATI    = 0 + VAL_POINTER,
+       VAL_MP      = 1 + VAL_POINTER,
+       VAL_TP      = 2 + VAL_POINTER,
+       VAL_OBJ     = 3 + VAL_POINTER
+};
+
+#if SIZEOF_VOID_P == 4
+typedef guint32 mono_u;
+typedef gint32  mono_i;
+#elif SIZEOF_VOID_P == 8
+typedef guint64 mono_u;
+typedef gint64  mono_i;
+#endif
+
+/*
+ * Value types are represented on the eval stack as pointers to the
+ * actual storage. The size field tells how much storage is allocated.
+ * A value type can't be larger than 16 MB.
+ */
+typedef struct {
+       union {
+               gint32 i;
+               gint64 l;
+               double f;
+               /* native size integer and pointer types */
+               gpointer p;
+               mono_u nati;
+               gpointer vt;
+       } data;
+#if defined(__ppc__) || defined(__powerpc__)
+       int pad;
+#endif
+} stackval;
+
+typedef struct _MonoInvocation MonoInvocation;
+
+typedef void (*MonoFuncV) (void);
+typedef void (*MonoPIFunc) (MonoFuncV callme, void *margs);
+
+/* 
+ * Structure representing a method transformed for the interpreter 
+ * This is domain specific
+ */
+typedef struct _RuntimeMethod
+{
+       /* NOTE: These first two elements (method and
+          next_jit_code_hash) must be in the same order and at the
+          same offset as in MonoJitInfo, because of the jit_code_hash
+          internal hash table in MonoDomain. */
+       MonoMethod *method;
+       struct _RuntimeMethod *next_jit_code_hash;
+       guint32 locals_size;
+       guint32 args_size;
+       guint32 stack_size;
+       guint32 vt_stack_size;
+       guint32 alloca_size;
+       unsigned short *code;
+       unsigned short *new_body_start; /* after all STINARG instrs */
+       MonoPIFunc func;
+       int num_clauses;
+       MonoExceptionClause *clauses;
+       void **data_items;
+       int transformed;
+       guint32 *arg_offsets;
+       guint32 *local_offsets;
+       unsigned int param_count;
+       unsigned int hasthis;
+       unsigned int valuetype;
+} RuntimeMethod;
+
+struct _MonoInvocation {
+       MonoInvocation *parent; /* parent */
+       RuntimeMethod  *runtime_method; /* parent */
+       MonoMethod     *method; /* parent */
+       stackval       *retval; /* parent */
+       void           *obj;    /* this - parent */
+       char           *args;
+       stackval       *stack_args; /* parent */
+       stackval       *stack;
+       stackval       *sp; /* For GC stack marking */
+       /* exception info */
+       unsigned char  invoke_trap;
+       const unsigned short  *ip;
+       MonoException     *ex;
+       MonoExceptionClause *ex_handler;
+};
+
+typedef struct {
+       MonoDomain *domain;
+       MonoInvocation *base_frame;
+       MonoInvocation *current_frame;
+       MonoInvocation *env_frame;
+       jmp_buf *current_env;
+       unsigned char search_for_handler;
+       unsigned char managed_code;
+} ThreadContext;
+
+void mono_init_icall (void);
+
+MonoException *
+mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context);
+
+MonoDelegate*
+mono_interp_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
+
+int
+interp_regression_list (int verbose, int count, char *images []);
+
+void
+mono_interp_transform_init (void);
+
+static void inline stackval_from_data (MonoType *type, stackval *result, char *data, gboolean pinvoke);
+static void inline stackval_to_data (MonoType *type, stackval *val, char *data, gboolean pinvoke);
+void ves_exec_method (MonoInvocation *frame);
+
+MonoDomain *
+mono_interp_init(const char *file);
+
+/*
+ * defined in an arch specific file.
+ */
+MonoPIFunc
+mono_arch_create_trampoline (MonoMethodSignature *sig, gboolean string_ctor);
+
+RuntimeMethod *
+mono_interp_get_runtime_method (MonoDomain *domain, MonoMethod *method, MonoError *error);
+
+void *mono_arch_create_method_pointer (MonoMethod *method);
+
+extern int mono_interp_traceopt;
diff --git a/mono/mini/interpreter/mintops.c b/mono/mini/interpreter/mintops.c
new file mode 100644 (file)
index 0000000..5b4d692
--- /dev/null
@@ -0,0 +1,120 @@
+/*
+ * Utilities for handling interpreter VM instructions
+ *
+ * Authors:
+ *   Bernie Solomon (bernard@ugsolutions.com)
+ *
+ */
+#include <glib.h>
+#include <stdio.h>
+#include "mintops.h"
+
+#define OPDEF(a,b,c,d) \
+       b,
+const char *mono_interp_opname[] = {
+#include "mintops.def"
+       ""
+};
+#undef OPDEF
+
+#define OPDEF(a,b,c,d) \
+       c,
+unsigned char mono_interp_oplen[] = {
+#include "mintops.def"
+       0
+};
+#undef OPDEF
+
+
+#define OPDEF(a,b,c,d) \
+       d,
+MintOpArgType mono_interp_opargtype[] = {
+#include "mintops.def"
+       0
+};
+#undef OPDEF
+
+const guint16 *
+mono_interp_dis_mintop(const guint16 *base, const guint16 *ip)
+{
+       int len = mono_interp_oplen [*ip];
+       guint32 token;
+       int target;
+       if (len < 0 || len > 10) {
+               g_print ("op %d len %d\n", *ip, len);
+               g_assert_not_reached ();
+       } else if (len == 0) { /* SWITCH */
+               int n = READ32 (ip + 1);
+               len = 3 + n * 2;
+       }
+
+       g_print ("IL_%04x: %-10s", ip - base, mono_interp_opname [*ip]);
+       switch (mono_interp_opargtype [*ip]) {
+       case MintOpNoArgs:
+               break;
+       case MintOpUShortInt:
+               g_print (" %u", * (guint16 *)(ip + 1));
+               break;
+       case MintOpTwoShorts:
+               g_print (" %u,%u", * (guint16 *)(ip + 1), * (guint16 *)(ip + 2));
+               break;
+       case MintOpShortAndInt:
+               g_print (" %u,%u", * (guint16 *)(ip + 1), (guint32)READ32(ip + 2));
+               break;
+       case MintOpShortInt:
+               g_print (" %d", * (short *)(ip + 1));
+               break;
+       case MintOpClassToken:
+       case MintOpMethodToken:
+       case MintOpFieldToken:
+               token = * (guint16 *)(ip + 1);
+               g_print (" %u", token);
+               break;
+       case MintOpInt:
+               g_print (" %d", (gint32)READ32 (ip + 1));
+               break;
+       case MintOpLongInt:
+               g_print (" %lld", (gint64)READ64 (ip + 1));
+               break;
+       case MintOpFloat: {
+               gint32 tmp = READ32 (ip + 1);
+               g_print (" %g", * (float *)&tmp);
+               break;
+       }
+       case MintOpDouble: {
+               gint64 tmp = READ64 (ip + 1);
+               g_print (" %g", * (double *)&tmp);
+               break;
+       }
+       case MintOpShortBranch:
+               target = ip + * (short *)(ip + 1) - base;
+               g_print (" IL_%04x", target);
+               break;
+       case MintOpBranch:
+               target = ip + (gint32)READ32 (ip + 1) - base;
+               g_print (" IL_%04x", target);
+               break;
+       case MintOpSwitch: {
+               const guint16 *p = ip + 1;
+               int sval = (gint32)READ32 (p);
+               int i;
+               p += 2;
+               g_print ("(");
+               for (i = 0; i < sval; ++i) {
+                       int offset;
+                       if (i > 0)
+                               g_print (", ");
+                       offset = (gint32)READ32 (p);
+                       g_print ("IL_%04x", ip - base + 3 + 2 * sval + offset);
+                       p += 2;
+               }
+               g_print (")");
+               break;
+       }
+       default:
+               g_print("unknown arg type\n");
+       }
+
+       return ip + len;
+}
+
diff --git a/mono/mini/interpreter/mintops.def b/mono/mini/interpreter/mintops.def
new file mode 100644 (file)
index 0000000..8c6fc93
--- /dev/null
@@ -0,0 +1,510 @@
+/*
+ * Definitions of VM instructions executed by interp.c
+ *
+ * Authors:
+ *   Bernie Solomon (bernard@ugsolutions.com)
+ *
+ */
+
+/* OPDEF (opsymbol, opstring, oplength, optype) */
+
+OPDEF(MINT_NOP, "nop", 1, MintOpNoArgs)
+OPDEF(MINT_BREAK, "break", 1, MintOpNoArgs)
+OPDEF(MINT_LDNULL, "ldnull", 1, MintOpNoArgs)
+OPDEF(MINT_DUP, "dup", 1, MintOpNoArgs)
+OPDEF(MINT_DUP_VT, "dup.vt", 3, MintOpInt)
+OPDEF(MINT_POP, "pop", 1, MintOpNoArgs)
+
+OPDEF(MINT_RET, "ret", 1, MintOpNoArgs)
+OPDEF(MINT_RET_VOID, "ret.void", 1, MintOpNoArgs)
+OPDEF(MINT_RET_VT, "ret.vt", 3, MintOpInt)
+
+OPDEF(MINT_VTRESULT, "vtresult", 4, MintOpShortAndInt) /*FIX should be unsigned*/
+
+OPDEF(MINT_LDC_I4_M1, "ldc.i4.m1", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_0, "ldc.i4.0", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_1, "ldc.i4.1", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_2, "ldc.i4.2", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_3, "ldc.i4.3", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_4, "ldc.i4.4", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_5, "ldc.i4.5", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_6, "ldc.i4.6", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_7, "ldc.i4.7", 1, MintOpNoArgs)
+OPDEF(MINT_LDC_I4_8, "ldc.i4.8", 1, MintOpNoArgs)
+
+OPDEF(MINT_LDC_I4_S, "ldc.i4.s", 2, MintOpShortInt)
+OPDEF(MINT_LDC_I4, "ldc.i4", 3, MintOpInt)
+OPDEF(MINT_LDC_I8, "ldc.i8", 5, MintOpLongInt)
+
+OPDEF(MINT_LDC_R4, "ldc.r4", 3, MintOpFloat)
+OPDEF(MINT_LDC_R8, "ldc.r8", 5, MintOpDouble)
+
+OPDEF(MINT_LDARG_I1, "ldarg.i1", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_U1, "ldarg.u1", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_I2, "ldarg.i2", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_U2, "ldarg.u2", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_I4, "ldarg.i4", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_I8, "ldarg.i8", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_R4, "ldarg.r4", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_R8, "ldarg.r8", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_O, "ldarg.o", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_P, "ldarg.p", 2, MintOpUShortInt)
+OPDEF(MINT_LDARG_VT, "ldarg.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_LDTHIS, "ldthis", 1, MintOpNoArgs)
+
+OPDEF(MINT_STARG_I1, "starg.i1", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_U1, "starg.u1", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_I2, "starg.i2", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_U2, "starg.u2", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_I4, "starg.i4", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_I8, "starg.i8", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_R4, "starg.r4", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_R8, "starg.r8", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_O, "starg.o", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_P, "starg.p", 2, MintOpUShortInt)
+OPDEF(MINT_STARG_VT, "starg.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_STTHIS, "stthis", 1, MintOpNoArgs)
+
+OPDEF(MINT_STINARG_I1, "stinarg.i1", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_U1, "stinarg.u1", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_I2, "stinarg.i2", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_U2, "stinarg.u2", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_I4, "stinarg.i4", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_I8, "stinarg.i8", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_R4, "stinarg.r4", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_R8, "stinarg.r8", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_O, "stinarg.o", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_P, "stinarg.p", 2, MintOpUShortInt)
+OPDEF(MINT_STINARG_VT, "stinarg.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_LDARGA, "ldarga", 2, MintOpUShortInt)
+OPDEF(MINT_LDTHISA, "ldthisa", 1, MintOpNoArgs)
+
+OPDEF(MINT_LDFLD_I1, "ldfld.i1", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_U1, "ldfld.u1", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_I2, "ldfld.i2", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_U2, "ldfld.u2", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_I4, "ldfld.i4", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_I8, "ldfld.i8", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_R4, "ldfld.r4", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_R8, "ldfld.r8", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_O, "ldfld.o", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_P, "ldfld.p", 2, MintOpUShortInt)
+OPDEF(MINT_LDFLD_VT, "ldfld.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_LDRMFLD, "ldrmfld", 2, MintOpFieldToken)
+OPDEF(MINT_LDRMFLD_VT, "ldrmfld.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_LDFLDA, "ldflda", 2, MintOpUShortInt)
+
+OPDEF(MINT_STFLD_I1, "stfld.i1", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_U1, "stfld.u1", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_I2, "stfld.i2", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_U2, "stfld.u2", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_I4, "stfld.i4", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_I8, "stfld.i8", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_R4, "stfld.r4", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_R8, "stfld.r8", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_O, "stfld.o", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_P, "stfld.p", 2, MintOpUShortInt)
+OPDEF(MINT_STFLD_VT, "stfld.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_STRMFLD, "strmfld", 2, MintOpFieldToken)
+OPDEF(MINT_STRMFLD_VT, "strmfld.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_LDSFLD, "ldsfld", 3, MintOpTwoShorts)
+OPDEF(MINT_LDSFLD_I4, "ldsfld.i4", 3, MintOpTwoShorts)
+OPDEF(MINT_LDSFLD_O, "ldsfld.o", 3, MintOpTwoShorts)
+OPDEF(MINT_LDSFLD_VT, "ldsfld.vt", 4, MintOpShortAndInt)
+OPDEF(MINT_STSFLD, "stsfld", 2, MintOpUShortInt)
+OPDEF(MINT_STSFLD_VT, "stsfld.vt", 4, MintOpShortAndInt)
+OPDEF(MINT_LDSFLDA, "ldsflda", 2, MintOpUShortInt)
+
+OPDEF(MINT_LDLOC_I1, "ldloc.i1", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_U1, "ldloc.u1", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_I2, "ldloc.i2", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_U2, "ldloc.u2", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_I4, "ldloc.i4", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_I8, "ldloc.i8", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_R4, "ldloc.r4", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_R8, "ldloc.r8", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_O, "ldloc.o", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_P, "ldloc.p", 2, MintOpUShortInt)
+OPDEF(MINT_LDLOC_VT, "ldloc.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_STLOC_I1, "stloc.i1", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_U1, "stloc.u1", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_I2, "stloc.i2", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_U2, "stloc.u2", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_I4, "stloc.i4", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_I8, "stloc.i8", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_R4, "stloc.r4", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_R8, "stloc.r8", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_O, "stloc.o", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_P, "stloc.p", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_VT, "stloc.vt", 4, MintOpShortAndInt)
+
+OPDEF(MINT_STLOC_NP_I4, "stloc.np.i4", 2, MintOpUShortInt)
+OPDEF(MINT_STLOC_NP_O, "stloc.np.o", 2, MintOpUShortInt)
+
+OPDEF(MINT_LDLOCA_S, "ldloca.s", 2, MintOpUShortInt)
+
+OPDEF(MINT_LDIND_I1, "ldind.i1", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_U1, "ldind.u1", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_I2, "ldind.i2", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_U2, "ldind.u2", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_I4, "ldind.i4", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_U4, "ldind.u4", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_I8, "ldind.i8", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_I, "ldind.i", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_R4, "ldind.r4", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_R8, "ldind.r8", 1, MintOpNoArgs)
+OPDEF(MINT_LDIND_REF, "ldind.ref", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_I1, "stind.i1", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_I2, "stind.i2", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_I4, "stind.i4", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_I8, "stind.i8", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_I, "stind.i", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_R4, "stind.r4", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_R8, "stind.r8", 1, MintOpNoArgs)
+OPDEF(MINT_STIND_REF, "stind.ref", 1, MintOpNoArgs)
+
+OPDEF(MINT_BR, "br", 3, MintOpBranch)
+OPDEF(MINT_LEAVE, "leave", 3, MintOpBranch)
+OPDEF(MINT_BR_S, "br.s", 2, MintOpShortBranch)
+OPDEF(MINT_LEAVE_S, "leave.s", 2, MintOpShortBranch)
+
+OPDEF(MINT_THROW, "throw", 1, MintOpNoArgs)
+OPDEF(MINT_RETHROW, "rethrow", 1, MintOpNoArgs)
+OPDEF(MINT_ENDFINALLY, "endfinally", 1, MintOpNoArgs)
+
+OPDEF(MINT_BRFALSE_I4, "brfalse.i4", 3, MintOpBranch)
+OPDEF(MINT_BRFALSE_I8, "brfalse.i8", 3, MintOpBranch)
+OPDEF(MINT_BRFALSE_R8, "brfalse.r8", 3, MintOpBranch)
+OPDEF(MINT_BRTRUE_I4, "brtrue.i4", 3, MintOpBranch)
+OPDEF(MINT_BRTRUE_I8, "brtrue.i8", 3, MintOpBranch)
+OPDEF(MINT_BRTRUE_R8, "brtrue.r8", 3, MintOpBranch)
+
+OPDEF(MINT_BRFALSE_I4_S, "brfalse.i4.s", 2, MintOpShortBranch)
+OPDEF(MINT_BRFALSE_I8_S, "brfalse.i8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BRFALSE_R8_S, "brfalse.r8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BRTRUE_I4_S, "brtrue.i4.s", 2, MintOpShortBranch)
+OPDEF(MINT_BRTRUE_I8_S, "brtrue.i8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BRTRUE_R8_S, "brtrue.r8.s", 2, MintOpShortBranch)
+
+OPDEF(MINT_BEQ_I4, "beq.i4", 3, MintOpBranch)
+OPDEF(MINT_BEQ_I8, "beq.i8", 3, MintOpBranch)
+OPDEF(MINT_BEQ_R8, "beq.r8", 3, MintOpBranch)
+OPDEF(MINT_BGE_I4, "bge.i4", 3, MintOpBranch) 
+OPDEF(MINT_BGE_I8, "bge.i8", 3, MintOpBranch) 
+OPDEF(MINT_BGE_R8, "bge.r8", 3, MintOpBranch) 
+OPDEF(MINT_BGT_I4, "bgt.i4", 3, MintOpBranch) 
+OPDEF(MINT_BGT_I8, "bgt.i8", 3, MintOpBranch) 
+OPDEF(MINT_BGT_R8, "bgt.r8", 3, MintOpBranch) 
+OPDEF(MINT_BLT_I4, "blt.i4", 3, MintOpBranch) 
+OPDEF(MINT_BLT_I8, "blt.i8", 3, MintOpBranch) 
+OPDEF(MINT_BLT_R8, "blt.r8", 3, MintOpBranch) 
+OPDEF(MINT_BLE_I4, "ble.i4", 3, MintOpBranch) 
+OPDEF(MINT_BLE_I8, "ble.i8", 3, MintOpBranch) 
+OPDEF(MINT_BLE_R8, "ble.r8", 3, MintOpBranch) 
+
+OPDEF(MINT_BNE_UN_I4, "bne.un.i4", 3, MintOpBranch)
+OPDEF(MINT_BNE_UN_I8, "bne.un.i8", 3, MintOpBranch)
+OPDEF(MINT_BNE_UN_R8, "bne.un.r8", 3, MintOpBranch)
+OPDEF(MINT_BGE_UN_I4, "bge.un.i4", 3, MintOpBranch) 
+OPDEF(MINT_BGE_UN_I8, "bge.un.i8", 3, MintOpBranch) 
+OPDEF(MINT_BGE_UN_R8, "bge.un.r8", 3, MintOpBranch) 
+OPDEF(MINT_BGT_UN_I4, "bgt.un.i4", 3, MintOpBranch) 
+OPDEF(MINT_BGT_UN_I8, "bgt.un.i8", 3, MintOpBranch) 
+OPDEF(MINT_BGT_UN_R8, "bgt.un.r8", 3, MintOpBranch) 
+OPDEF(MINT_BLE_UN_I4, "ble.un.i4", 3, MintOpBranch) 
+OPDEF(MINT_BLE_UN_I8, "ble.un.i8", 3, MintOpBranch) 
+OPDEF(MINT_BLE_UN_R8, "ble.un.r8", 3, MintOpBranch) 
+OPDEF(MINT_BLT_UN_I4, "blt.un.i4", 3, MintOpBranch) 
+OPDEF(MINT_BLT_UN_I8, "blt.un.i8", 3, MintOpBranch) 
+OPDEF(MINT_BLT_UN_R8, "blt.un.r8", 3, MintOpBranch) 
+
+OPDEF(MINT_BEQ_I4_S, "beq.i4.s", 2, MintOpShortBranch)
+OPDEF(MINT_BEQ_I8_S, "beq.i8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BEQ_R8_S, "beq.r8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BGE_I4_S, "bge.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGE_I8_S, "bge.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGE_R8_S, "bge.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_I4_S, "bgt.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_I8_S, "bgt.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_R8_S, "bgt.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_I4_S, "blt.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_I8_S, "blt.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_R8_S, "blt.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_I4_S, "ble.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_I8_S, "ble.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_R8_S, "ble.r8.s", 2, MintOpShortBranch) 
+
+OPDEF(MINT_BNE_UN_I4_S, "bne.un.i4.s", 2, MintOpShortBranch)
+OPDEF(MINT_BNE_UN_I8_S, "bne.un.i8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BNE_UN_R8_S, "bne.un.r8.s", 2, MintOpShortBranch)
+OPDEF(MINT_BGE_UN_I4_S, "bge.un.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGE_UN_I8_S, "bge.un.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGE_UN_R8_S, "bge.un.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_UN_I4_S, "bgt.un.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_UN_I8_S, "bgt.un.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BGT_UN_R8_S, "bgt.un.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_UN_I4_S, "ble.un.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_UN_I8_S, "ble.un.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLE_UN_R8_S, "ble.un.r8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_UN_I4_S, "blt.un.i4.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_UN_I8_S, "blt.un.i8.s", 2, MintOpShortBranch) 
+OPDEF(MINT_BLT_UN_R8_S, "blt.un.r8.s", 2, MintOpShortBranch) 
+
+OPDEF(MINT_SWITCH, "switch", 0, MintOpSwitch)
+
+OPDEF(MINT_LDSTR, "ldstr", 2, MintOpMethodToken) /* not really */
+
+OPDEF(MINT_CALL, "call", 2, MintOpMethodToken) 
+OPDEF(MINT_VCALL, "vcall", 2, MintOpMethodToken) 
+OPDEF(MINT_CALLVIRT, "callvirt", 2, MintOpMethodToken) 
+OPDEF(MINT_VCALLVIRT, "vcallvirt", 2, MintOpMethodToken) 
+OPDEF(MINT_CALLI, "calli", 2, MintOpMethodToken) 
+OPDEF(MINT_CALLI_NAT, "calli.nat", 2, MintOpMethodToken) 
+OPDEF(MINT_JMP, "jmp", 2, MintOpMethodToken) 
+
+OPDEF(MINT_CALLRUN, "callrun", 1, MintOpNoArgs)
+
+OPDEF(MINT_NEWOBJ, "newobj", 2, MintOpMethodToken) 
+OPDEF(MINT_INITOBJ, "initobj", 3, MintOpInt) 
+OPDEF(MINT_CASTCLASS, "castclass", 2, MintOpClassToken) 
+OPDEF(MINT_ISINST, "isinst", 2, MintOpClassToken) 
+OPDEF(MINT_NEWARR, "newarr", 2, MintOpClassToken) 
+OPDEF(MINT_BOX, "box", 2, MintOpClassToken) 
+OPDEF(MINT_UNBOX, "unbox", 2, MintOpClassToken) 
+OPDEF(MINT_LDTOKEN, "ldtoken", 2, MintOpClassToken) /* not really */
+OPDEF(MINT_LDFTN, "ldftn", 2, MintOpMethodToken) 
+OPDEF(MINT_LDVIRTFTN, "ldvirtftn", 2, MintOpMethodToken) 
+OPDEF(MINT_LDOBJ, "ldobj", 2, MintOpClassToken) 
+OPDEF(MINT_STOBJ, "stobj", 2, MintOpClassToken) 
+OPDEF(MINT_STOBJ_VT, "stobj.vt", 2, MintOpClassToken) 
+OPDEF(MINT_CPBLK, "cpblk", 1, MintOpNoArgs) 
+OPDEF(MINT_INITBLK, "initblk", 1, MintOpNoArgs) 
+OPDEF(MINT_LOCALLOC, "localloc", 1, MintOpNoArgs) 
+OPDEF(MINT_INITLOCALS, "initlocals", 1, MintOpNoArgs) 
+
+OPDEF(MINT_LDELEM_I, "ldelem.i", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_I1, "ldelem.i1", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_U1, "ldelem.u1", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_I2, "ldelem.i2", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_U2, "ldelem.u2", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_I4, "ldelem.i4", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_U4, "ldelem.u4", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_I8, "ldelem.i8", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_R4, "ldelem.r4", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_R8, "ldelem.r8", 1, MintOpNoArgs)
+OPDEF(MINT_LDELEM_REF, "ldelem.ref", 1, MintOpNoArgs)
+
+OPDEF(MINT_LDELEMA, "ldelema", 2, MintOpClassToken)
+
+OPDEF(MINT_STELEM_I, "stelem.i", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_I1, "stelem.i1", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_I2, "stelem.i2", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_I4, "stelem.i4", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_I8, "stelem.i8", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_R4, "stelem.r4", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_R8, "stelem.r8", 1, MintOpNoArgs)
+OPDEF(MINT_STELEM_REF, "stelem.ref", 1, MintOpNoArgs)
+
+OPDEF(MINT_LDLEN, "ldlen", 1, MintOpNoArgs)
+
+OPDEF(MINT_ADD_I4, "add.i4", 1, MintOpNoArgs)
+OPDEF(MINT_ADD_I8, "add.i8", 1, MintOpNoArgs)
+OPDEF(MINT_ADD_R8, "add.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_ADD1_I4, "add1.i4", 1, MintOpNoArgs)
+
+OPDEF(MINT_SUB_I4, "sub.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SUB_I8, "sub.i8", 1, MintOpNoArgs)
+OPDEF(MINT_SUB_R8, "sub.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_SUB1_I4, "sub1.i4", 1, MintOpNoArgs)
+
+OPDEF(MINT_MUL_I4, "mul.i4", 1, MintOpNoArgs)
+OPDEF(MINT_MUL_I8, "mul.i8", 1, MintOpNoArgs)
+OPDEF(MINT_MUL_R8, "mul.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_DIV_I4, "div.i4", 1, MintOpNoArgs)
+OPDEF(MINT_DIV_I8, "div.i8", 1, MintOpNoArgs)
+OPDEF(MINT_DIV_R8, "div.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_DIV_UN_I4, "div.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_DIV_UN_I8, "div.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_ADD_OVF_I4, "add.ovf.i4", 1, MintOpNoArgs)
+OPDEF(MINT_ADD_OVF_I8, "add.ovf.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_ADD_OVF_UN_I4, "add.ovf.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_ADD_OVF_UN_I8, "add.ovf.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_MUL_OVF_I4, "mul.ovf.i4", 1, MintOpNoArgs)
+OPDEF(MINT_MUL_OVF_I8, "mul.ovf.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_MUL_OVF_UN_I4, "mul.ovf.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_MUL_OVF_UN_I8, "mul.ovf.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_SUB_OVF_I4, "sub.ovf.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SUB_OVF_I8, "sub.ovf.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_SUB_OVF_UN_I4, "sub.ovf.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SUB_OVF_UN_I8, "sub.ovf.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_NEG_I4, "neg.i4", 1, MintOpNoArgs)
+OPDEF(MINT_NEG_I8, "neg.i8", 1, MintOpNoArgs)
+OPDEF(MINT_NEG_R8, "neg.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_NOT_I4, "not.i4", 1, MintOpNoArgs)
+OPDEF(MINT_NOT_I8, "not.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_AND_I4, "and.i4", 1, MintOpNoArgs)
+OPDEF(MINT_AND_I8, "and.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_OR_I4, "or.i4", 1, MintOpNoArgs)
+OPDEF(MINT_OR_I8, "or.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_XOR_I4, "xor.i4", 1, MintOpNoArgs)
+OPDEF(MINT_XOR_I8, "xor.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_REM_I4, "rem.i4", 1, MintOpNoArgs)
+OPDEF(MINT_REM_I8, "rem.i8", 1, MintOpNoArgs)
+OPDEF(MINT_REM_R8, "rem.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_REM_UN_I4, "rem.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_REM_UN_I8, "rem.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_SHR_UN_I4, "shr.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SHR_UN_I8, "shr.un.i8", 1, MintOpNoArgs)
+OPDEF(MINT_SHL_I4, "shl.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SHL_I8, "shl.i8", 1, MintOpNoArgs)
+OPDEF(MINT_SHR_I4, "shr.i4", 1, MintOpNoArgs)
+OPDEF(MINT_SHR_I8, "shr.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_R_UN_I4, "conv.r.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_R_UN_I8, "conv.r.un.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_I1_I4, "conv.i1.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I1_I8, "conv.i1.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I1_R8, "conv.i1.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_U1_I4, "conv.u1.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U1_I8, "conv.u1.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U1_R8, "conv.u1.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_I2_I4, "conv.i2.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I2_I8, "conv.i2.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I2_R8, "conv.i2.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_U2_I4, "conv.u2.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U2_I8, "conv.u2.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U2_R8, "conv.u2.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_I4_I8, "conv.i4.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I4_R8, "conv.i4.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_U4_I8, "conv.u4.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U4_R8, "conv.u4.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_I8_I4, "conv.i8.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I8_U4, "conv.i8.u4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_I8_R8, "conv.i8.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_R4_I4, "conv.r4.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_R4_I8, "conv.r4.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_R4_R8, "conv.r4.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_R8_I4, "conv.r8.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_R8_I8, "conv.r8.i8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_I4_I8_SP, "conv.i4.i8.sp", 1, MintOpNoArgs) /* special for narrowing sp[-2] on 64 bits */
+OPDEF(MINT_CONV_I8_I4_SP, "conv.i8.i4.sp", 1, MintOpNoArgs) /* special for widening sp[-2] on 64 bits */
+
+OPDEF(MINT_CONV_U8_I4, "conv.u8.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_U8_R8, "conv.u8.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I1_I4, "conv.ovf.i1.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I1_I8, "conv.ovf.i1.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I1_R8, "conv.ovf.i1.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_U1_I4, "conv.ovf.u1.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U1_I8, "conv.ovf.u1.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U1_R8, "conv.ovf.u1.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I2_I4, "conv.ovf.i2.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I2_I8, "conv.ovf.i2.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I2_R8, "conv.ovf.i2.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_U2_I4, "conv.ovf.u2.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U2_I8, "conv.ovf.u2.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U2_R8, "conv.ovf.u2.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I4_U4, "conv.ovf.i4.u4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I4_I8, "conv.ovf.i4.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I4_R8, "conv.ovf.i4.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I4_UN_I8, "conv.ovf.i4.un.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_I4_UN_R8, "conv.ovf.i4.un.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_U4_I4, "conv.ovf.u4.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U4_I8, "conv.ovf.u4.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U4_R8, "conv.ovf.u4.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I8_R8, "conv.ovf.i8.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_I8_UN_R8, "conv.ovf.i8.un.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CONV_OVF_U8_I4, "conv.ovf.u8.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CONV_OVF_U8_R8, "conv.ovf.u8.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CEQ_I4, "ceq.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CEQ_I8, "ceq.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CEQ_R8, "ceq.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CEQ0_I4, "ceq0.i4", 1, MintOpNoArgs)
+
+OPDEF(MINT_CGT_I4, "cgt.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CGT_I8, "cgt.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CGT_R8, "cgt.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CGT_UN_I4, "cgt.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CGT_UN_I8, "cgt.un.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CGT_UN_R8, "cgt.un.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CLT_I4, "clt.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CLT_I8, "clt.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CLT_R8, "clt.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CLT_UN_I4, "clt.un.i4", 1, MintOpNoArgs)
+OPDEF(MINT_CLT_UN_I8, "clt.un.i8", 1, MintOpNoArgs)
+OPDEF(MINT_CLT_UN_R8, "clt.un.r8", 1, MintOpNoArgs)
+
+OPDEF(MINT_CKFINITE, "ckfinite", 1, MintOpNoArgs)
+
+OPDEF(MINT_CKNULL, "cknull", 1, MintOpNoArgs)
+
+OPDEF(MINT_GETCHR, "getchr", 1, MintOpNoArgs)
+OPDEF(MINT_STRLEN, "strlen", 1, MintOpNoArgs)
+OPDEF(MINT_ARRAY_RANK, "array_rank", 1, MintOpNoArgs)
+
+OPDEF(MINT_ICALL_V_V, "mono_icall_v_v", 2, MintOpClassToken) /* not really */
+OPDEF(MINT_ICALL_V_P, "mono_icall_v_p", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_P_V, "mono_icall_p_v", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_P_P, "mono_icall_p_p", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PP_V, "mono_icall_pp_v", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PI_V, "mono_icall_pi_v", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PP_P, "mono_icall_pp_p", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PI_P, "mono_icall_pi_p", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PPP_V, "mono_icall_ppp_v", 2, MintOpClassToken)
+OPDEF(MINT_ICALL_PPI_V, "mono_icall_ppi_v", 2, MintOpClassToken)
+OPDEF(MINT_MONO_LDPTR, "mono_ldptr", 2, MintOpClassToken) 
+OPDEF(MINT_MONO_NEWOBJ, "mono_newobj", 2, MintOpClassToken)
+OPDEF(MINT_MONO_RETOBJ, "mono_retobj", 1, MintOpNoArgs)
+OPDEF(MINT_MONO_FREE, "mono_free", 1, MintOpNoArgs)
+
+
diff --git a/mono/mini/interpreter/mintops.h b/mono/mini/interpreter/mintops.h
new file mode 100644 (file)
index 0000000..e787526
--- /dev/null
@@ -0,0 +1,58 @@
+#ifndef __INTERPRETER_MINTOPS_H
+#define __INTERPRETER_MINTOPS_H
+
+#include <glib.h>
+
+typedef enum
+{
+       MintOpNoArgs,
+       MintOpShortInt,
+       MintOpUShortInt,
+       MintOpInt,
+       MintOpLongInt,
+       MintOpFloat,
+       MintOpDouble,
+       MintOpBranch,
+       MintOpShortBranch,
+       MintOpSwitch,
+       MintOpMethodToken,
+       MintOpFieldToken,
+       MintOpClassToken,
+       MintOpTwoShorts,
+       MintOpShortAndInt
+} MintOpArgType;
+
+#define OPDEF(a,b,c,d) \
+       a,
+enum {
+#include "mintops.def"
+       MINT_LASTOP
+};
+#undef OPDEF
+
+#if NO_UNALIGNED_ACCESS
+#  if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define READ32(x) (((guint16 *)(x)) [0] | ((guint16 *)(x)) [1] << 16)
+#define READ64(x) ((guint64)((guint16 *)(x)) [0] | \
+                   (guint64)((guint16 *)(x)) [1] << 16 | \
+                   (guint64)((guint16 *)(x)) [2] << 32 | \
+                   (guint64)((guint16 *)(x)) [3] << 48)
+#  else
+#define READ32(x) (((guint16 *)(x)) [0] << 16 | ((guint16 *)(x)) [1])
+#define READ64(x) ((guint64)((guint16 *)(x)) [0] << 48 | \
+                   (guint64)((guint16 *)(x)) [1] << 32 | \
+                   (guint64)((guint16 *)(x)) [2] << 16 | \
+                   (guint64)((guint16 *)(x)) [3])
+#  endif
+#else /* unaligned access OK */
+#define READ32(x) (*(guint32 *)(x))
+#define READ64(x) (*(guint64 *)(x))
+#endif
+
+extern const char *mono_interp_opname[];
+extern unsigned char mono_interp_oplen[];
+extern MintOpArgType mono_interp_opargtype[];
+extern const guint16 *mono_interp_dis_mintop(const unsigned short *base, const guint16 *ip);
+
+#endif
+
diff --git a/mono/mini/interpreter/transform.c b/mono/mini/interpreter/transform.c
new file mode 100644 (file)
index 0000000..02a336f
--- /dev/null
@@ -0,0 +1,3091 @@
+/*
+ * transform CIL into different opcodes for more
+ * efficient interpretation
+ *
+ * Written by Bernie Solomon (bernard@ugsolutions.com)
+ * Copyright (c) 2004.
+ */
+
+#include <string.h>
+#include <mono/metadata/appdomain.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/exception.h>
+#include <mono/metadata/mono-endian.h>
+#include <mono/metadata/marshal.h>
+#include <mono/metadata/profiler-private.h>
+#include <mono/metadata/tabledefs.h>
+
+#define OPDEF(a,b,c,d,e,f,g,h,i,j) \
+       a = i,
+
+enum {
+#include "mono/cil/opcode.def"
+       CEE_LASTOP
+};
+#undef OPDEF
+
+#include "mintops.h"
+#include "interp.h"
+
+// TODO: export from marshal.c
+MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
+
+#define DEBUG 0
+
+typedef struct
+{
+       MonoClass *klass;
+       unsigned char type;
+       unsigned char flags;
+} StackInfo;
+
+typedef struct
+{
+       MonoMethod *method;
+       MonoMethodHeader *header;
+       RuntimeMethod *rtm;
+       const unsigned char *il_code;
+       const unsigned char *ip;
+       const unsigned char *last_ip;
+       const unsigned char *in_start;
+       int code_size;
+       int *in_offsets;
+       int *forward_refs;
+       StackInfo **stack_state;
+       int *stack_height;
+       int *vt_stack_size;
+       unsigned char *is_bb_start;
+       unsigned short *new_code;
+       unsigned short *new_code_end;
+       unsigned short *new_ip;
+       unsigned short *last_new_ip;
+       unsigned int max_code_size;
+       StackInfo *stack;
+       StackInfo *sp;
+       unsigned int max_stack_height;
+       unsigned int vt_sp;
+       unsigned int max_vt_sp;
+       int n_data_items;
+       int max_data_items;
+       void **data_items;
+       GHashTable *data_hash;
+} TransformData;
+
+#define MINT_TYPE_I1 0
+#define MINT_TYPE_U1 1
+#define MINT_TYPE_I2 2
+#define MINT_TYPE_U2 3
+#define MINT_TYPE_I4 4
+#define MINT_TYPE_I8 5
+#define MINT_TYPE_R4 6
+#define MINT_TYPE_R8 7
+#define MINT_TYPE_O  8
+#define MINT_TYPE_P  9
+#define MINT_TYPE_VT 10
+
+#define STACK_TYPE_I4 0
+#define STACK_TYPE_I8 1
+#define STACK_TYPE_R8 2
+#define STACK_TYPE_O  3
+#define STACK_TYPE_VT 4
+#define STACK_TYPE_MP 5
+#define STACK_TYPE_F  6
+
+static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
+
+#if SIZEOF_VOID_P == 8
+#define STACK_TYPE_I STACK_TYPE_I8
+#else
+#define STACK_TYPE_I STACK_TYPE_I4
+#endif
+
+static int stack_type [] = {
+       STACK_TYPE_I4, /*I1*/
+       STACK_TYPE_I4, /*U1*/
+       STACK_TYPE_I4, /*I2*/
+       STACK_TYPE_I4, /*U2*/
+       STACK_TYPE_I4, /*I4*/
+       STACK_TYPE_I8, /*I8*/
+       STACK_TYPE_R8, /*R4*/
+       STACK_TYPE_R8, /*R8*/
+       STACK_TYPE_O,  /*O*/
+       STACK_TYPE_MP, /*P*/
+       STACK_TYPE_VT
+};
+
+static void
+grow_code (TransformData *td)
+{
+       unsigned int old_ip_offset = td->new_ip - td->new_code;
+       unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
+       g_assert (old_ip_offset <= td->max_code_size);
+       td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
+       td->new_code_end = td->new_code + td->max_code_size;
+       td->new_ip = td->new_code + old_ip_offset;
+       td->last_new_ip = td->new_code + old_last_ip_offset;
+}
+
+#define ENSURE_CODE(td, n) \
+       do { \
+               if ((td)->new_ip + (n) > (td)->new_code_end) \
+                       grow_code (td); \
+       } while (0)
+
+#define ADD_CODE(td, n) \
+       do { \
+               if ((td)->new_ip == (td)->new_code_end) \
+                       grow_code (td); \
+               *(td)->new_ip++ = (n); \
+       } while (0)
+
+#define CHECK_STACK(td, n) \
+       do { \
+               int stack_size = (td)->sp - (td)->stack; \
+               if (stack_size < (n)) \
+                       g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
+                               (td)->method->klass->name, (td)->method->name, \
+                               stack_size, n, (td)->ip - (td)->il_code); \
+       } while (0)
+
+#define ENSURE_I4(td, sp_off) \
+       do { \
+               if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
+                       ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
+       } while (0)
+
+static void 
+handle_branch(TransformData *td, int short_op, int long_op, int offset) 
+{
+       int shorten_branch = 0;
+       int target = td->ip + offset - td->il_code;
+       if (target < 0 || target >= td->code_size)
+               g_assert_not_reached ();
+       if (offset > 0 && td->stack_height [target] < 0) {
+               td->stack_height [target] = td->sp - td->stack;
+               if (td->stack_height [target] > 0)
+                       td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
+               td->vt_stack_size [target] = td->vt_sp;
+       }
+       if (offset < 0) {
+               offset = td->in_offsets [target] - (td->new_ip - td->new_code);
+               if (offset >= -32768) {
+                       shorten_branch = 1;
+               }
+       } else {
+               int prev = td->forward_refs [target];
+               td->forward_refs [td->ip - td->il_code] = prev;
+               td->forward_refs [target] = td->ip - td->il_code;
+               offset = 0;
+               if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
+                       shorten_branch = 1;
+       }
+       if (shorten_branch) {
+               ADD_CODE(td, short_op);
+               ADD_CODE(td, offset);
+       } else {
+               ADD_CODE(td, long_op);
+               ADD_CODE(td, * (unsigned short *)(&offset));
+               ADD_CODE(td, * ((unsigned short *)&offset + 1));
+       }
+}
+
+static void 
+one_arg_branch(TransformData *td, int mint_op, int offset) 
+{
+       int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
+       int long_op = mint_op + type - STACK_TYPE_I4;
+       int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
+       CHECK_STACK(td, 1);
+       --td->sp;
+       handle_branch (td, short_op, long_op, offset);
+}
+
+static void 
+two_arg_branch(TransformData *td, int mint_op, int offset) 
+{
+       int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
+       int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
+       int long_op = mint_op + type1 - STACK_TYPE_I4;
+       int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
+       CHECK_STACK(td, 2);
+       if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
+               ADD_CODE(td, MINT_CONV_I8_I4);
+               td->in_offsets [td->ip - td->il_code]++;
+       } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
+               ADD_CODE(td, MINT_CONV_I8_I4_SP);
+               td->in_offsets [td->ip - td->il_code]++;
+       } else if (type1 != type2) {
+               g_warning("%s.%s: branch type mismatch %d %d", 
+                       td->method->klass->name, td->method->name, 
+                       td->sp [-1].type, td->sp [-2].type);
+       }
+       td->sp -= 2;
+       handle_branch (td, short_op, long_op, offset);
+}
+
+static void
+unary_arith_op(TransformData *td, int mint_op)
+{
+       int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
+       CHECK_STACK(td, 1);
+       ADD_CODE(td, op);
+}
+
+static void
+binary_arith_op(TransformData *td, int mint_op)
+{
+       int type1 = td->sp [-2].type;
+       int type2 = td->sp [-1].type;
+       int op;
+#if SIZEOF_VOID_P == 8
+       if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
+               ADD_CODE(td, MINT_CONV_I8_I4);
+               type2 = STACK_TYPE_I8;
+       }
+       if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
+               ADD_CODE(td, MINT_CONV_I8_I4_SP);
+               type1 = STACK_TYPE_I8;
+               td->sp [-2].type = STACK_TYPE_I8;
+       }
+#endif
+       if (type1 == STACK_TYPE_MP)
+               type1 = STACK_TYPE_I;
+       if (type2 == STACK_TYPE_MP)
+               type2 = STACK_TYPE_I;
+       if (type1 != type2) {
+               g_warning("%s.%s: %04x arith type mismatch %s %d %d", 
+                       td->method->klass->name, td->method->name, 
+                       td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
+       }
+       op = mint_op + type1 - STACK_TYPE_I4;
+       CHECK_STACK(td, 2);
+       ADD_CODE(td, op);
+       --td->sp;
+}
+
+static void
+binary_int_op(TransformData *td, int mint_op)
+{
+       int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
+       CHECK_STACK(td, 2);
+       if (td->sp [-1].type != td->sp [-2].type)
+               g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
+       ADD_CODE(td, op);
+       --td->sp;
+}
+
+static void
+shift_op(TransformData *td, int mint_op)
+{
+       int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
+       CHECK_STACK(td, 2);
+       if (td->sp [-1].type != STACK_TYPE_I4) {
+               g_warning("%s.%s: shift type mismatch %d", 
+                       td->method->klass->name, td->method->name,
+                       td->sp [-2].type);
+       }
+       ADD_CODE(td, op);
+       --td->sp;
+}
+
+static int 
+mint_type(MonoType *type)
+{
+       if (type->byref)
+               return MINT_TYPE_P;
+enum_type:
+       switch (type->type) {
+       case MONO_TYPE_I1:
+               return MINT_TYPE_I1;
+       case MONO_TYPE_U1:
+       case MONO_TYPE_BOOLEAN:
+               return MINT_TYPE_U1;
+       case MONO_TYPE_I2:
+               return MINT_TYPE_I2;
+       case MONO_TYPE_U2:
+       case MONO_TYPE_CHAR:
+               return MINT_TYPE_U2;
+       case MONO_TYPE_I4:
+       case MONO_TYPE_U4:
+               return MINT_TYPE_I4;
+       case MONO_TYPE_I:
+       case MONO_TYPE_U:
+#if SIZEOF_VOID_P == 4
+               return MINT_TYPE_I4;
+#else
+               return MINT_TYPE_I8;
+#endif
+       case MONO_TYPE_PTR:
+               return MINT_TYPE_P;
+       case MONO_TYPE_R4:
+               return MINT_TYPE_R4;
+       case MONO_TYPE_I8:
+       case MONO_TYPE_U8:
+               return MINT_TYPE_I8;
+       case MONO_TYPE_R8:
+               return MINT_TYPE_R8;
+       case MONO_TYPE_STRING:
+       case MONO_TYPE_SZARRAY:
+       case MONO_TYPE_CLASS:
+       case MONO_TYPE_OBJECT:
+       case MONO_TYPE_ARRAY:
+               return MINT_TYPE_O;
+       case MONO_TYPE_VALUETYPE:
+               if (type->data.klass->enumtype) {
+                       type = mono_class_enum_basetype (type->data.klass);
+                       goto enum_type;
+               } else
+                       return MINT_TYPE_VT;
+       default:
+               g_warning ("got type 0x%02x", type->type);
+               g_assert_not_reached ();
+       }
+       return -1;
+}
+
+static int 
+can_store (int stack_type, int var_type)
+{
+       if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
+               stack_type = STACK_TYPE_I;
+       if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
+               var_type = STACK_TYPE_I;
+       return stack_type == var_type;
+}
+
+#define SET_SIMPLE_TYPE(s, ty) \
+       do { \
+               (s)->type = (ty); \
+               (s)->flags = 0; \
+               (s)->klass = NULL; \
+       } while (0)
+
+#define SET_TYPE(s, ty, k) \
+       do { \
+               (s)->type = (ty); \
+               (s)->flags = 0; \
+               (s)->klass = k; \
+       } while (0)
+
+#define PUSH_SIMPLE_TYPE(td, ty) \
+       do { \
+               int sp_height; \
+               (td)->sp++; \
+               sp_height = (td)->sp - (td)->stack; \
+               if (sp_height > (td)->max_stack_height) \
+                       (td)->max_stack_height = sp_height; \
+               SET_SIMPLE_TYPE((td)->sp - 1, ty); \
+       } while (0)
+
+#define PUSH_TYPE(td, ty, k) \
+       do { \
+               int sp_height; \
+               (td)->sp++; \
+               sp_height = (td)->sp - (td)->stack; \
+               if (sp_height > (td)->max_stack_height) \
+                       (td)->max_stack_height = sp_height; \
+               SET_TYPE((td)->sp - 1, ty, k); \
+       } while (0)
+
+#define PUSH_VT(td, size) \
+       do { \
+               (td)->vt_sp += ((size) + 7) & ~7; \
+               if ((td)->vt_sp > (td)->max_vt_sp) \
+                       (td)->max_vt_sp = (td)->vt_sp; \
+       } while (0)
+
+#define POP_VT(td, size) \
+       do { \
+               (td)->vt_sp -= ((size) + 7) & ~7; \
+       } while (0)
+
+#if NO_UNALIGNED_ACCESS
+#define WRITE32(td, v) \
+       do { \
+               ENSURE_CODE(td, 2); \
+               * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
+               * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
+               (td)->new_ip += 2; \
+       } while (0)
+
+#define WRITE64(td, v) \
+       do { \
+               ENSURE_CODE(td, 4); \
+               * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
+               * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
+               * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
+               * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
+               (td)->new_ip += 4; \
+       } while (0)
+#else
+#define WRITE32(td, v) \
+       do { \
+               ENSURE_CODE(td, 2); \
+               * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
+               (td)->new_ip += 2; \
+       } while (0)
+
+#define WRITE64(td, v) \
+       do { \
+               ENSURE_CODE(td, 4); \
+               * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
+               (td)->new_ip += 4; \
+       } while (0)
+
+#endif
+
+static void 
+load_arg(TransformData *td, int n)
+{
+       int mt;
+       MonoClass *klass = NULL;
+       if (n == 0 && mono_method_signature (td->method)->hasthis) {
+               if (td->method->klass->valuetype)
+                       mt = MINT_TYPE_P;
+               else {
+                       mt = MINT_TYPE_O;
+                       klass = td->method->klass;
+               }
+               ADD_CODE(td, MINT_LDTHIS);
+       } else {
+               MonoType *type;
+               n -= mono_method_signature (td->method)->hasthis;
+               type = mono_method_signature (td->method)->params [n];
+               mt = mint_type (type);
+               if (mt == MINT_TYPE_VT) {
+                       gint32 size;
+                       if (mono_method_signature (td->method)->pinvoke)
+                               size = mono_class_native_size (type->data.klass, NULL);
+                       else
+                               size = mono_class_value_size (type->data.klass, NULL);
+                       PUSH_VT(td, size);
+                       ADD_CODE(td, MINT_LDARG_VT);
+                       ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
+                       WRITE32(td, &size);             
+                       klass = type->data.klass;
+               } else {
+                       ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
+                       ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
+                       if (mt == MINT_TYPE_O)
+                               klass = mono_class_from_mono_type (type);
+               }
+       }
+       PUSH_TYPE(td, stack_type[mt], klass);
+}
+
+static void 
+store_arg(TransformData *td, int n)
+{
+       int mt;
+       CHECK_STACK (td, 1);
+       if (n == 0 && mono_method_signature (td->method)->hasthis)
+               ADD_CODE(td, MINT_STTHIS);
+       else {
+               MonoType *type;
+               n -= mono_method_signature (td->method)->hasthis;
+               type = mono_method_signature (td->method)->params [n];
+               mt = mint_type (type);
+               if (mt == MINT_TYPE_VT) {
+                       gint32 size;
+                       if (mono_method_signature (td->method)->pinvoke)
+                               size = mono_class_native_size (type->data.klass, NULL);
+                       else
+                               size = mono_class_value_size (type->data.klass, NULL);
+                       ADD_CODE(td, MINT_STARG_VT);
+                       ADD_CODE(td, n);
+                       WRITE32(td, &size);
+                       if (td->sp [-1].type == STACK_TYPE_VT)
+                               POP_VT(td, size);
+               } else {
+                       ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
+                       ADD_CODE(td, td->rtm->arg_offsets [n]);
+               }
+       }
+       --td->sp;
+}
+
+static void 
+store_inarg(TransformData *td, int n)
+{
+       MonoType *type = mono_method_signature (td->method)->params [n];
+       int mt = mint_type (type);
+       if (mt == MINT_TYPE_VT) {
+               gint32 size;
+               if (mono_method_signature (td->method)->pinvoke)
+                       size = mono_class_native_size (type->data.klass, NULL);
+               else
+                       size = mono_class_value_size (type->data.klass, NULL);
+               ADD_CODE(td, MINT_STINARG_VT);
+               ADD_CODE(td, n);
+               WRITE32(td, &size);
+       } else {
+               ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
+               ADD_CODE(td, n);
+       }
+}
+
+static void 
+load_local(TransformData *td, int n)
+{
+       MonoType *type = td->header->locals [n];
+       int mt = mint_type (type);
+       int offset = td->rtm->local_offsets [n];
+       MonoClass *klass = NULL;
+       if (mt == MINT_TYPE_VT) {
+               gint32 size = mono_class_value_size (type->data.klass, NULL);
+               PUSH_VT(td, size);
+               ADD_CODE(td, MINT_LDLOC_VT);
+               ADD_CODE(td, offset); /*FIX for large offset */
+               WRITE32(td, &size);
+               klass = type->data.klass;
+       } else {
+               if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
+                       td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
+                       td->last_new_ip [0] = MINT_STLOC_NP_I4;
+               } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
+                       td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
+                       td->last_new_ip [0] = MINT_STLOC_NP_O;
+               } else {
+                       ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
+                       ADD_CODE(td, offset); /*FIX for large offset */
+               }
+               if (mt == MINT_TYPE_O)
+                       klass = mono_class_from_mono_type (type);
+       }
+       PUSH_TYPE(td, stack_type[mt], klass);
+}
+
+static void 
+store_local(TransformData *td, int n)
+{
+       MonoType *type = td->header->locals [n];
+       int mt = mint_type (type);
+       int offset = td->rtm->local_offsets [n];
+       CHECK_STACK (td, 1);
+#if SIZEOF_VOID_P == 8
+       if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
+               ADD_CODE(td, MINT_CONV_I8_I4);
+               td->sp [-1].type = STACK_TYPE_I8;
+       }
+#endif
+       if (!can_store(td->sp [-1].type, stack_type [mt])) {
+               g_warning("%s.%s: Store local stack type mismatch %d %d", 
+                       td->method->klass->name, td->method->name,
+                       stack_type [mt], td->sp [-1].type);
+       }
+       if (mt == MINT_TYPE_VT) {
+               gint32 size = mono_class_value_size (type->data.klass, NULL);
+               ADD_CODE(td, MINT_STLOC_VT);
+               ADD_CODE(td, offset); /*FIX for large offset */
+               WRITE32(td, &size);
+               if (td->sp [-1].type == STACK_TYPE_VT)
+                       POP_VT(td, size);
+       } else {
+               ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
+               ADD_CODE(td, offset); /*FIX for large offset */
+       }
+       --td->sp;
+}
+
+#define SIMPLE_OP(td, op) \
+       do { \
+               ADD_CODE(&td, op); \
+               ++td.ip; \
+       } while (0)
+
+static guint16
+get_data_item_index (TransformData *td, void *ptr)
+{
+       gpointer p = g_hash_table_lookup (td->data_hash, ptr);
+       guint index;
+       if (p != NULL)
+               return GPOINTER_TO_UINT (p) - 1;
+       if (td->max_data_items == td->n_data_items) {
+               td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
+               td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
+       }
+       index = td->n_data_items;
+       td->data_items [index] = ptr;
+       ++td->n_data_items;
+       g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
+       return index;
+}
+
+static void
+interp_transform_call (TransformData *td, MonoMethod *method, MonoDomain *domain, MonoGenericContext *generic_context, unsigned char *is_bb_start, int body_start_offset)
+{
+       MonoImage *image = method->klass->image;
+       MonoMethod *m;
+       MonoMethodSignature *csignature;
+       MonoError error;
+       int virtual = *td->ip == CEE_CALLVIRT;
+       int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
+       int i;
+       guint32 vt_stack_used = 0;
+       guint32 vt_res_size = 0;
+       int op = -1;
+       int native = 0;
+       int is_void = 0;
+
+       guint32 token = read32 (td->ip + 1);
+
+       if (calli) {
+               CHECK_STACK(td, 1);
+               native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
+               --td->sp;
+               if (method->wrapper_type != MONO_WRAPPER_NONE)
+                       csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
+               else
+                       csignature = mono_metadata_parse_signature (image, token);
+               m = NULL;
+       } else {
+               if (method->wrapper_type == MONO_WRAPPER_NONE)
+                       m = mono_get_method_full (image, token, NULL, generic_context);
+               else
+                       m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
+               csignature = mono_method_signature (m);
+               if (m->klass == mono_defaults.string_class) {
+                       if (m->name [0] == 'g') {
+                               if (strcmp (m->name, "get_Chars") == 0)
+                                       op = MINT_GETCHR;
+                               else if (strcmp (m->name, "get_Length") == 0)
+                                       op = MINT_STRLEN;
+                       }
+               } else if (m->klass == mono_defaults.array_class) {
+                       if (strcmp (m->name, "get_Rank") == 0)
+                               op = MINT_ARRAY_RANK;
+                       else if (strcmp (m->name, "get_Length") == 0)
+                               op = MINT_LDLEN;
+               }
+       }
+       CHECK_STACK (td, csignature->param_count + csignature->hasthis);
+       if (!calli && (!virtual || (m->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
+               (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 && 
+               (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
+               int called_inited = mono_class_vtable (domain, m->klass)->initialized;
+               MonoMethodHeader *mheader = mono_method_get_header (m);
+
+               if (/*mono_metadata_signature_equal (method->signature, m->signature) */ method == m && *(td->ip + 5) == CEE_RET) {
+                       int offset;
+                       if (mono_interp_traceopt)
+                               g_print ("Optimize tail call of %s.%s\n", m->klass->name, m->name);
+                       for (i = csignature->param_count - 1; i >= 0; --i)
+                               store_arg (td, i + csignature->hasthis);
+
+                       if (csignature->hasthis) {
+                               ADD_CODE(td, MINT_STTHIS);
+                               --td->sp;
+                       }
+                       ADD_CODE(td, MINT_BR_S);
+                       offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
+                       ADD_CODE(td, offset);
+                       if (!is_bb_start [td->ip + 5 - td->il_code])
+                               ++td->ip; /* gobble the CEE_RET if it isn't branched to */                              
+                       td->ip += 5;
+                       return;
+               } else {
+                       /* mheader might not exist if this is a delegate invoc, etc */
+                       if (mheader && *mheader->code == CEE_RET && called_inited) {
+                               if (mono_interp_traceopt)
+                                       g_print ("Inline (empty) call of %s.%s\n", m->klass->name, m->name);
+                               for (i = 0; i < csignature->param_count; i++)
+                                       ADD_CODE(td, MINT_POP); /*FIX: vt */
+                               if (csignature->hasthis) {
+                                       if (virtual)
+                                               ADD_CODE(td, MINT_CKNULL);
+                                       ADD_CODE(td, MINT_POP);
+                               }
+                               td->sp -= csignature->param_count + csignature->hasthis;
+                               td->ip += 5;
+                               return;
+                       }
+               }
+       }
+       if (method->wrapper_type == MONO_WRAPPER_NONE && m != NULL) {
+               if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
+                       m = mono_marshal_get_native_wrapper (m, FALSE, FALSE);
+               if (!virtual && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
+                       m = mono_marshal_get_synchronized_wrapper (m);
+       }
+       g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
+       td->sp -= csignature->param_count + csignature->hasthis;
+       for (i = 0; i < csignature->param_count; ++i) {
+               if (td->sp [i + csignature->hasthis].type == STACK_TYPE_VT) {
+                       gint32 size;
+                       if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
+                               size = mono_class_native_size (csignature->params [i]->data.klass, NULL);
+                       else
+                               size = mono_class_value_size (csignature->params [i]->data.klass, NULL);
+                       size = (size + 7) & ~7;
+                       vt_stack_used += size;
+               }
+       }
+
+       /* need to handle typedbyref ... */
+       if (csignature->ret->type != MONO_TYPE_VOID) {
+               int mt = mint_type(csignature->ret);
+               MonoClass *klass = NULL;
+               if (mt == MINT_TYPE_VT) {
+                       if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
+                               vt_res_size = mono_class_native_size (csignature->ret->data.klass, NULL);
+                       else
+                               vt_res_size = mono_class_value_size (csignature->ret->data.klass, NULL);
+                       PUSH_VT(td, vt_res_size);
+                       klass = csignature->ret->data.klass;
+               } else if (mt == MINT_TYPE_O)
+                       klass = mono_class_from_mono_type (csignature->ret);
+               PUSH_TYPE(td, stack_type[mt], klass);
+       } else
+               is_void = TRUE;
+
+       if (op >= 0) {
+               ADD_CODE(td, op);
+#if SIZEOF_VOID_P == 8
+               if (op == MINT_LDLEN)
+                       ADD_CODE(td, MINT_CONV_I4_I8);
+#endif
+       } else {
+               if (calli)
+                       ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
+               else if (virtual)
+                       ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
+               else
+                       ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
+               
+               if (calli) {
+                       ADD_CODE(td, get_data_item_index (td, (void *)csignature));
+               } else {
+                       ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, m, &error)));
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+               }
+       }
+       td->ip += 5;
+       if (vt_stack_used != 0 || vt_res_size != 0) {
+               ADD_CODE(td, MINT_VTRESULT);
+               ADD_CODE(td, vt_res_size);
+               WRITE32(td, &vt_stack_used);
+               td->vt_sp -= vt_stack_used;
+       }
+}
+
+static void
+generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start)
+{
+       MonoMethodHeader *header = mono_method_get_header (method);
+       MonoMethodSignature *signature = mono_method_signature (method);
+       MonoImage *image = method->klass->image;
+       MonoDomain *domain = mono_domain_get ();
+       MonoGenericContext *generic_context = NULL;
+       MonoError error;
+       int offset, mt;
+       int i;
+       int i32;
+       MonoClass *klass;
+       MonoClassField *field;
+       const unsigned char *end;
+       int new_in_start_offset;
+       int body_start_offset;
+       int target;
+       guint32 token;
+       TransformData td;
+       int generating_code = 1;
+
+       if (mono_method_signature (method)->is_inflated)
+               generic_context = &((MonoMethodInflated *) method)->context;
+
+       memset(&td, 0, sizeof(td));
+       td.method = method;
+       td.rtm = rtm;
+       td.is_bb_start = is_bb_start;
+       td.il_code = header->code;
+       td.code_size = header->code_size;
+       td.header = header;
+       td.max_code_size = td.code_size;
+       td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
+       td.new_code_end = td.new_code + td.max_code_size;
+       td.in_offsets = g_malloc0(header->code_size * sizeof(int));
+       td.forward_refs = g_malloc(header->code_size * sizeof(int));
+       td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
+       td.stack_height = g_malloc(header->code_size * sizeof(int));
+       td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
+       td.n_data_items = 0;
+       td.max_data_items = 0;
+       td.data_items = NULL;
+       td.data_hash = g_hash_table_new (NULL, NULL);
+       rtm->data_items = td.data_items;
+       for (i = 0; i < header->code_size; i++) {
+               td.forward_refs [i] = -1;
+               td.stack_height [i] = -1;
+       }
+       td.new_ip = td.new_code;
+       td.last_new_ip = NULL;
+
+       td.stack = g_malloc0(header->max_stack * sizeof(td.stack[0]));
+       td.sp = td.stack;
+       td.max_stack_height = 0;
+
+       for (i = 0; i < header->num_clauses; i++) {
+               MonoExceptionClause *c = header->clauses + i;
+               td.stack_height [c->handler_offset] = 0;
+               td.vt_stack_size [c->handler_offset] = 0;
+               td.is_bb_start [c->handler_offset] = 1;
+               if (c->flags == MONO_EXCEPTION_CLAUSE_NONE) {
+                       td.stack_height [c->handler_offset] = 1;
+                       td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
+                       td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
+                       td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
+               }
+       }
+
+       td.ip = header->code;
+       end = td.ip + header->code_size;
+
+       if (mono_interp_traceopt) {
+               char *tmp = mono_disasm_code (NULL, method, td.ip, end);
+               char *name = mono_method_full_name (method, TRUE);
+               g_print ("Method %s, original code:\n", name);
+               g_print ("%s\n", tmp);
+               g_free (tmp);
+               g_free (name);
+       }
+
+       for (i = 0; i < signature->param_count; i++)
+               store_inarg(&td, i);
+
+       body_start_offset = td.new_ip - td.new_code;
+
+       for (i = 0; i < header->num_locals; i++) {
+               int mt = mint_type(header->locals [i]);
+               if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O) {
+                       ADD_CODE(&td, MINT_INITLOCALS);
+                       break;
+               }
+       }
+
+       while (td.ip < end) {
+               int in_offset;
+
+               g_assert (td.sp >= td.stack);
+               g_assert (td.vt_sp < 0x10000000);
+               in_offset = td.ip - header->code;
+               td.in_offsets [in_offset] = td.new_ip - td.new_code;
+               new_in_start_offset = td.new_ip - td.new_code;
+               td.in_start = td.ip;
+               while (td.forward_refs [in_offset] >= 0) {
+                       int j = td.forward_refs [in_offset];
+                       int slot;
+                       td.forward_refs [in_offset] = td.forward_refs [j];
+                       if (td.in_offsets [j] < 0) {                        
+                               int old_switch_offset = -td.in_offsets [j];
+                               int new_switch_offset = td.in_offsets [old_switch_offset];
+                               int switch_case = (j - old_switch_offset - 5) / 4;
+                               int n_cases = read32 (header->code + old_switch_offset + 1);
+                               offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
+                               slot = new_switch_offset + 3 + 2 * switch_case;
+                               td.new_code [slot] = * (unsigned short *)(&offset);
+                               td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
+                       } else {
+                               int op = td.new_code [td.in_offsets [j]];
+                               if (mono_interp_opargtype [op] == MintOpShortBranch) {
+                                       offset = (td.new_ip - td.new_code) - td.in_offsets [j];
+                                       g_assert (offset <= 32767);
+                                       slot = td.in_offsets [j] + 1;
+                                       td.new_code [slot] = offset;
+                               } else {
+                                       offset = (td.new_ip - td.new_code) - td.in_offsets [j];
+                                       slot = td.in_offsets [j] + 1;
+                                       td.new_code [slot] = * (unsigned short *)(&offset);
+                                       td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
+                               }
+                       }
+               }
+               if (td.stack_height [in_offset] >= 0) {
+                       g_assert (is_bb_start [in_offset]);
+                       if (td.stack_height [in_offset] > 0)
+                               memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
+                       td.sp = td.stack + td.stack_height [in_offset];
+                       td.vt_sp = td.vt_stack_size [in_offset];
+               }
+               if (is_bb_start [in_offset]) {
+                       generating_code = 1;
+               }
+               if (!generating_code) {
+                       while (td.ip < end && !is_bb_start [td.ip - td.il_code])
+                               ++td.ip;
+                       continue;
+               }
+               if (mono_interp_traceopt > 1) {
+                       printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n", 
+                               td.ip - td.il_code,
+                               td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
+                               td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
+                               td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
+                               mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack, 
+                               td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
+                               (td.sp > td.stack && (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_VT)) ? (td.sp [-1].klass == NULL ? "?" : td.sp [-1].klass->name) : "",
+                               td.vt_sp, td.max_vt_sp);
+               }
+               switch (*td.ip) {
+               case CEE_NOP: 
+                       /* lose it */
+                       ++td.ip;
+                       break;
+               case CEE_BREAK:
+                       SIMPLE_OP(td, MINT_BREAK);
+                       break;
+               case CEE_LDARG_0:
+               case CEE_LDARG_1:
+               case CEE_LDARG_2:
+               case CEE_LDARG_3:
+                       load_arg (&td, *td.ip - CEE_LDARG_0);
+                       ++td.ip;
+                       break;
+               case CEE_LDLOC_0:
+               case CEE_LDLOC_1:
+               case CEE_LDLOC_2:
+               case CEE_LDLOC_3:
+                       load_local (&td, *td.ip - CEE_LDLOC_0);
+                       ++td.ip;
+                       break;
+               case CEE_STLOC_0:
+               case CEE_STLOC_1:
+               case CEE_STLOC_2:
+               case CEE_STLOC_3:
+                       store_local (&td, *td.ip - CEE_STLOC_0);
+                       ++td.ip;
+                       break;
+               case CEE_LDARG_S:
+                       load_arg (&td, ((guint8 *)td.ip)[1]);
+                       td.ip += 2;
+                       break;
+               case CEE_LDARGA_S: {
+                       int n = ((guint8 *)td.ip)[1];
+                       if (n == 0 && signature->hasthis) 
+                               ADD_CODE(&td, MINT_LDTHISA);
+                       else {
+                               ADD_CODE(&td, MINT_LDARGA);
+                               ADD_CODE(&td, td.rtm->arg_offsets [n - signature->hasthis]);
+                       }
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
+                       td.ip += 2;
+                       break;
+               }
+               case CEE_STARG_S:
+                       store_arg (&td, ((guint8 *)td.ip)[1]);
+                       td.ip += 2;
+                       break;
+               case CEE_LDLOC_S:
+                       load_local (&td, ((guint8 *)td.ip)[1]);
+                       td.ip += 2;
+                       break;
+               case CEE_LDLOCA_S:
+                       ADD_CODE(&td, MINT_LDLOCA_S);
+                       ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
+                       td.ip += 2;
+                       break;
+               case CEE_STLOC_S:
+                       store_local (&td, ((guint8 *)td.ip)[1]);
+                       td.ip += 2;
+                       break;
+               case CEE_LDNULL: 
+                       SIMPLE_OP(td, MINT_LDNULL);
+                       PUSH_TYPE(&td, STACK_TYPE_O, NULL);
+                       break;
+               case CEE_LDC_I4_M1:
+                       SIMPLE_OP(td, MINT_LDC_I4_M1);
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       break;
+               case CEE_LDC_I4_0:
+                       if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ && 
+                               td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
+                               SIMPLE_OP(td, MINT_CEQ0_I4);
+                               td.ip += 2;
+                       } else {
+                               SIMPLE_OP(td, MINT_LDC_I4_0);
+                               PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       }
+                       break;
+               case CEE_LDC_I4_1:
+                       if (!td.is_bb_start[td.ip + 1 - td.il_code] && 
+                               (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
+                               ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
+                               td.ip += 2;
+                       } else {
+                               SIMPLE_OP(td, MINT_LDC_I4_1);
+                               PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       }
+                       break;
+               case CEE_LDC_I4_2:
+               case CEE_LDC_I4_3:
+               case CEE_LDC_I4_4:
+               case CEE_LDC_I4_5:
+               case CEE_LDC_I4_6:
+               case CEE_LDC_I4_7:
+               case CEE_LDC_I4_8:
+                       SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       break;
+               case CEE_LDC_I4_S: 
+                       ADD_CODE(&td, MINT_LDC_I4_S);
+                       ADD_CODE(&td, ((gint8 *) td.ip) [1]);
+                       td.ip += 2;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       break;
+               case CEE_LDC_I4:
+                       i32 = read32 (td.ip + 1);
+                       ADD_CODE(&td, MINT_LDC_I4);
+                       WRITE32(&td, &i32);
+                       td.ip += 5;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                       break;
+               case CEE_LDC_I8: {
+                       gint64 val = read64 (td.ip + 1);
+                       ADD_CODE(&td, MINT_LDC_I8);
+                       WRITE64(&td, &val);
+                       td.ip += 9;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
+                       break;
+               }
+               case CEE_LDC_R4: {
+                       float val;
+                       readr4 (td.ip + 1, &val);
+                       ADD_CODE(&td, MINT_LDC_R4);
+                       WRITE32(&td, &val);
+                       td.ip += 5;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
+                       break;
+               }
+               case CEE_LDC_R8: {
+                       double val;
+                       readr8 (td.ip + 1, &val);
+                       ADD_CODE(&td, MINT_LDC_R8);
+                       WRITE64(&td, &val);
+                       td.ip += 9;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
+                       break;
+               }
+               case CEE_DUP: {
+                       int type = td.sp [-1].type;
+                       MonoClass *klass = td.sp [-1].klass;
+                       if (td.sp [-1].type == STACK_TYPE_VT) {
+                               gint32 size = mono_class_value_size (klass, NULL);
+                               PUSH_VT(&td, size);
+                               ADD_CODE(&td, MINT_DUP_VT);
+                               WRITE32(&td, &size);
+                               td.ip ++;
+                       } else 
+                               SIMPLE_OP(td, MINT_DUP);
+                       PUSH_TYPE(&td, type, klass);
+                       break;
+               }
+               case CEE_POP:
+                       CHECK_STACK(&td, 1);
+                       SIMPLE_OP(td, MINT_POP);
+                       if (td.sp [-1].type == STACK_TYPE_VT) {
+                               int size = mono_class_value_size (td.sp [-1].klass, NULL);
+                               size = (size + 7) & ~7;
+                               ADD_CODE(&td, MINT_VTRESULT);
+                               ADD_CODE(&td, 0);
+                               WRITE32(&td, &size);
+                               td.vt_sp -= size;
+                       }
+                       --td.sp;
+                       break;
+               case CEE_JMP: {
+                       MonoMethod *m;
+                       if (td.sp > td.stack)
+                               g_warning ("CEE_JMP: stack must be empty");
+                       token = read32 (td.ip + 1);
+                       m = mono_get_method_full (image, token, NULL, generic_context);
+                       ADD_CODE (&td, MINT_JMP);
+                       ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       td.ip += 5;
+                       break;
+               }
+               case CEE_CALLVIRT: /* Fall through */
+               case CEE_CALLI:    /* Fall through */
+               case CEE_CALL: {
+                       interp_transform_call (&td, method, domain, generic_context, is_bb_start, body_start_offset);
+                       break;
+               }
+               case CEE_RET: {
+                       int vt_size = 0;
+                       if (signature->ret->type != MONO_TYPE_VOID) {
+                               --td.sp;
+                               if (mint_type(signature->ret) == MINT_TYPE_VT) {
+                                       vt_size = mono_class_value_size (signature->ret->data.klass, NULL);
+                                       vt_size = (vt_size + 7) & ~7;
+                               }
+                       }
+                       if (td.sp > td.stack)
+                               g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
+                       if (td.vt_sp != vt_size)
+                               g_warning ("%s.%s: CEE_RET: value type stack: %d", td.method->klass->name, td.method->name, td.vt_sp);
+                       if (vt_size == 0)
+                               SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
+                       else {
+                               ADD_CODE(&td, MINT_RET_VT);
+                               WRITE32(&td, &vt_size);
+                               ++td.ip;
+                       }
+                       generating_code = 0;
+                       break;
+               }
+               case CEE_BR:
+                       handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       generating_code = 0;
+                       break;
+               case CEE_BR_S:
+                       handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
+                       td.ip += 2;
+                       generating_code = 0;
+                       break;
+               case CEE_BRFALSE:
+                       one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BRFALSE_S:
+                       one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BRTRUE:
+                       one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BRTRUE_S:
+                       one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BEQ:
+                       two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BEQ_S:
+                       two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BGE:
+                       two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BGE_S:
+                       two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BGT:
+                       two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BGT_S:
+                       two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BLT:
+                       two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BLT_S:
+                       two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BLE:
+                       two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BLE_S:
+                       two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BNE_UN:
+                       two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BNE_UN_S:
+                       two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BGE_UN:
+                       two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BGE_UN_S:
+                       two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BGT_UN:
+                       two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BGT_UN_S:
+                       two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BLE_UN:
+                       two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BLE_UN_S:
+                       two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_BLT_UN:
+                       two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       break;
+               case CEE_BLT_UN_S:
+                       two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
+                       td.ip += 2;
+                       break;
+               case CEE_SWITCH: {
+                       guint32 n;
+                       const unsigned char *next_ip;
+                       const unsigned char *base_ip = td.ip;
+                       unsigned short *next_new_ip;
+                       ++td.ip;
+                       n = read32 (td.ip);
+                       ADD_CODE(&td, MINT_SWITCH);
+                       ADD_CODE(&td, * (unsigned short *)(&n));
+                       ADD_CODE(&td, * ((unsigned short *)&n + 1));
+                       td.ip += 4;
+                       next_ip = td.ip + n * 4;
+                       next_new_ip = td.new_ip + n * 2;
+                       for (i = 0; i < n; i++) {
+                               offset = read32 (td.ip);
+                               target = next_ip - td.il_code + offset;
+                               if (offset < 0)
+                                       target = td.in_offsets [target] - (next_new_ip - td.new_code);
+                               else {
+                                       int prev = td.forward_refs [target];
+                                       td.forward_refs [td.ip - td.il_code] = prev;
+                                       td.forward_refs [target] = td.ip - td.il_code;
+                                       td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
+                               }
+                               ADD_CODE(&td, * (unsigned short *)(&target));
+                               ADD_CODE(&td, * ((unsigned short *)&target + 1));
+                               td.ip += 4;
+                       }
+                       --td.sp;
+                       break;
+               }
+               case CEE_LDIND_I1:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_I1);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_U1:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_U1);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_I2:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_I2);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_U2:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_U2);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_I4:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_I4);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_U4:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_U4);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDIND_I8:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_I8);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+               case CEE_LDIND_I:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_I);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                       break;
+               case CEE_LDIND_R4:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_R4);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_LDIND_R8:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_R8);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_LDIND_REF:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDIND_REF);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
+                       break;
+               case CEE_STIND_REF:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_REF);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_I1:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_I1);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_I2:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_I2);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_I4:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_I4);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_I:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_I);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_I8:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_I8);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_R4:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_R4);
+                       td.sp -= 2;
+                       break;
+               case CEE_STIND_R8:
+                       CHECK_STACK (&td, 2);
+                       SIMPLE_OP (td, MINT_STIND_R8);
+                       td.sp -= 2;
+                       break;
+               case CEE_ADD:
+                       binary_arith_op(&td, MINT_ADD_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SUB:
+                       binary_arith_op(&td, MINT_SUB_I4);
+                       ++td.ip;
+                       break;
+               case CEE_MUL:
+                       binary_arith_op(&td, MINT_MUL_I4);
+                       ++td.ip;
+                       break;
+               case CEE_DIV:
+                       binary_arith_op(&td, MINT_DIV_I4);
+                       ++td.ip;
+                       break;
+               case CEE_DIV_UN:
+                       binary_arith_op(&td, MINT_DIV_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_REM:
+                       binary_int_op (&td, MINT_REM_I4);
+                       ++td.ip;
+                       break;
+               case CEE_REM_UN:
+                       binary_int_op (&td, MINT_REM_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_AND:
+                       binary_int_op (&td, MINT_AND_I4);
+                       ++td.ip;
+                       break;
+               case CEE_OR:
+                       binary_int_op (&td, MINT_OR_I4);
+                       ++td.ip;
+                       break;
+               case CEE_XOR:
+                       binary_int_op (&td, MINT_XOR_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SHL:
+                       shift_op (&td, MINT_SHL_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SHR:
+                       shift_op (&td, MINT_SHR_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SHR_UN:
+                       shift_op (&td, MINT_SHR_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_NEG:
+                       unary_arith_op (&td, MINT_NEG_I4);
+                       ++td.ip;
+                       break;
+               case CEE_NOT:
+                       unary_arith_op (&td, MINT_NOT_I4);
+                       ++td.ip;
+                       break;
+               case CEE_CONV_U1:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_U1_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_U1_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_U1_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_I1:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_I1_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_I1_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_I1_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_U2:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_U2_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_U2_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_U2_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_I2:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_I2_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_I2_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_I2_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_U:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+#if SIZEOF_VOID_P == 4
+                               ADD_CODE(&td, MINT_CONV_U4_R8);
+#else
+                               ADD_CODE(&td, MINT_CONV_U8_R8);
+#endif
+                               break;
+                       case STACK_TYPE_I4:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_U8_I4);
+#endif
+                               break;
+                       case STACK_TYPE_I8:
+#if SIZEOF_VOID_P == 4
+                               ADD_CODE(&td, MINT_CONV_U4_I8);
+#endif
+                               break;
+                       case STACK_TYPE_MP:
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                       break;
+               case CEE_CONV_I: 
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_I8_R8);
+#else
+                               ADD_CODE(&td, MINT_CONV_I4_R8);
+#endif
+                               break;
+                       case STACK_TYPE_I4:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_I8_I4);
+#endif
+                               break;
+                       case STACK_TYPE_O:
+                               break;
+                       case STACK_TYPE_MP:
+                               break;
+                       case STACK_TYPE_I8:
+#if SIZEOF_VOID_P == 4
+                               ADD_CODE(&td, MINT_CONV_I4_I8);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                       break;
+               case CEE_CONV_U4:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_U4_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_U4_I8);
+                               break;
+                       case STACK_TYPE_MP:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_U4_I8);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_I4:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_I4_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_I4_I8);
+                               break;
+                       case STACK_TYPE_MP:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_I4_I8);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_I8:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_I8_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_I8_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               break;
+                       case STACK_TYPE_MP:
+#if SIZEOF_VOID_P == 4
+                               ADD_CODE(&td, MINT_CONV_I8_I4);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+               case CEE_CONV_R4:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_R4_R8);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_R4_I8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_R4_I4);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_CONV_R8:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_R8_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_R8_I8);
+                               break;
+                       case STACK_TYPE_R8:
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_CONV_U8:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_U8_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               break;
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_U8_R8);
+                               break;
+                       case STACK_TYPE_MP:
+#if SIZEOF_VOID_P == 4
+                               ADD_CODE(&td, MINT_CONV_U8_I4);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+#if 0
+               case CEE_CPOBJ: {
+                       MonoClass *vtklass;
+                       ++ip;
+                       vtklass = mono_class_get_full (image, read32 (ip), generic_context);
+                       ip += 4;
+                       sp -= 2;
+                       memcpy (sp [0].data.p, sp [1].data.p, mono_class_value_size (vtklass, NULL));
+                       break;
+               }
+#endif
+               case CEE_LDOBJ: {
+                       int size;
+                       CHECK_STACK (&td, 1);
+
+                       token = read32 (td.ip + 1);
+
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else
+                               klass = mono_class_get_full (image, token, generic_context);
+
+                       ADD_CODE(&td, MINT_LDOBJ);
+                       ADD_CODE(&td, get_data_item_index(&td, klass));
+                       if (klass->byval_arg.type == MONO_TYPE_VALUETYPE && !klass->byval_arg.data.klass->enumtype) {
+                               size = mono_class_value_size (klass, NULL);
+                               PUSH_VT(&td, size);
+                       }
+                       td.ip += 5;
+                       SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
+                       break;
+               }
+               case CEE_LDSTR: {
+                       MonoString *s;
+                       token = mono_metadata_token_index (read32 (td.ip + 1));
+                       td.ip += 5;
+                       if (method->wrapper_type != MONO_WRAPPER_NONE) {
+                               s = mono_string_new_wrapper(
+                                       mono_method_get_wrapper_data (method, token));
+                       }
+                       else
+                               s = mono_ldstr (domain, image, token);
+                       ADD_CODE(&td, MINT_LDSTR);
+                       ADD_CODE(&td, get_data_item_index (&td, s));
+                       PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
+                       break;
+               }
+               case CEE_NEWOBJ: {
+                       MonoMethod *m;
+                       MonoMethodSignature *csignature;
+                       guint32 vt_stack_used = 0;
+                       guint32 vt_res_size = 0;
+
+                       td.ip++;
+                       token = read32 (td.ip);
+                       td.ip += 4;
+
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
+                       else 
+                               m = mono_get_method_full (image, token, NULL, generic_context);
+
+                       csignature = mono_method_signature (m);
+                       klass = m->klass;
+                       td.sp -= csignature->param_count;
+                       ADD_CODE(&td, MINT_NEWOBJ);
+                       ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
+                       mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                       if (klass->byval_arg.type == MONO_TYPE_VALUETYPE) {
+                               vt_res_size = mono_class_value_size (klass, NULL);
+                               PUSH_VT(&td, vt_res_size);
+                       }
+                       for (i = 0; i < csignature->param_count; ++i) {
+                               int mt = mint_type(csignature->params [i]);
+                               if (mt == MINT_TYPE_VT) {
+                                       gint32 size = mono_class_value_size (csignature->params [i]->data.klass, NULL);
+                                       size = (size + 7) & ~7;
+                                       vt_stack_used += size;
+                               }
+                       }
+                       if (vt_stack_used != 0 || vt_res_size != 0) {
+                               ADD_CODE(&td, MINT_VTRESULT);
+                               ADD_CODE(&td, vt_res_size);
+                               WRITE32(&td, &vt_stack_used);
+                               td.vt_sp -= vt_stack_used;
+                       }
+                       PUSH_TYPE(&td, stack_type [mint_type (&klass->byval_arg)], klass);
+                       break;
+               }
+               case CEE_CASTCLASS:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       klass = mono_class_get_full (image, token, generic_context);
+                       ADD_CODE(&td, MINT_CASTCLASS);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       td.sp [-1].klass = klass;
+                       td.ip += 5;
+                       break;
+               case CEE_ISINST:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       klass = mono_class_get_full (image, token, generic_context);
+                       ADD_CODE(&td, MINT_ISINST);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       td.ip += 5;
+                       break;
+               case CEE_CONV_R_UN:
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_R_UN_I8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_R_UN_I4);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       ++td.ip;
+                       break;
+               case CEE_UNBOX_ANY: /* let's play a dangerous game, TODO */
+               case CEE_UNBOX:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else 
+                               klass = mono_class_get_full (image, token, generic_context);
+                       
+                       ADD_CODE(&td, MINT_UNBOX);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                       td.ip += 5;
+                       break;
+               case CEE_THROW:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_THROW);
+                       --td.sp;
+                       generating_code = 0;
+                       break;
+               case CEE_LDFLDA:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       mono_class_init (klass);
+                       mt = mint_type(field->type);
+                       ADD_CODE(&td, MINT_LDFLDA);
+                       ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
+                       td.ip += 5;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                       break;
+               case CEE_LDFLD: {
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       mono_class_init (klass);
+                       mt = mint_type(field->type);
+                       if (klass->marshalbyref) {
+                               ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
+                               ADD_CODE(&td, get_data_item_index (&td, field));
+                       } else  {
+                               ADD_CODE(&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
+                               ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
+                       }
+                       klass = NULL;
+                       if (mt == MINT_TYPE_VT) {
+                               int size = mono_class_value_size (field->type->data.klass, NULL);
+                               PUSH_VT(&td, size);
+                               WRITE32(&td, &size);
+                               klass = field->type->data.klass;
+                       } else if (mt == MINT_TYPE_O)
+                               klass = mono_class_from_mono_type (field->type);
+                       td.ip += 5;
+                       SET_TYPE(td.sp - 1, stack_type [mt], klass);
+                       break;
+               }
+               case CEE_STFLD:
+                       CHECK_STACK (&td, 2);
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       mono_class_init (klass);
+                       mt = mint_type(field->type);
+                       if (klass->marshalbyref) {
+                               ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
+                               ADD_CODE(&td, get_data_item_index (&td, field));
+                       } else  {
+                               ADD_CODE(&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
+                               ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
+                       }
+                       if (mt == MINT_TYPE_VT) {
+                               int size = mono_class_value_size (field->type->data.klass, NULL);
+                               POP_VT(&td, size);
+                               WRITE32(&td, &size);
+                       }
+                       td.ip += 5;
+                       td.sp -= 2;
+                       break;
+               case CEE_LDSFLDA:
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       ADD_CODE(&td, MINT_LDSFLDA);
+                       ADD_CODE(&td, get_data_item_index (&td, field));
+                       td.ip += 5;
+                       PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
+                       break;
+               case CEE_LDSFLD:
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       mt = mint_type(field->type);
+                       ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
+                       ADD_CODE(&td, get_data_item_index (&td, field));
+                       klass = NULL;
+                       if (mt == MINT_TYPE_VT) {
+                               int size = mono_class_value_size (field->type->data.klass, NULL);
+                               PUSH_VT(&td, size);
+                               WRITE32(&td, &size);
+                               klass = field->type->data.klass;
+                       } else {
+                               if (mt == MINT_TYPE_O) 
+                                       klass = mono_class_from_mono_type (field->type);
+                               if (!domain->special_static_fields || !g_hash_table_lookup (domain->special_static_fields, field)) {
+                                       if (mt == MINT_TYPE_O)
+                                               td.new_ip [-2] = MINT_LDSFLD_O;
+                                       else if (mt == MINT_TYPE_I4)
+                                               td.new_ip [-2] = MINT_LDSFLD_I4;
+                               }
+                               ADD_CODE(&td, get_data_item_index (&td, mono_class_vtable (domain, field->parent)));
+                       }
+                       td.ip += 5;
+                       PUSH_TYPE(&td, stack_type [mt], klass);
+                       break;
+               case CEE_STSFLD:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       field = mono_field_from_token (image, token, &klass, generic_context);
+                       mt = mint_type(field->type);
+                       ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
+                       ADD_CODE(&td, get_data_item_index (&td, field));
+                       if (mt == MINT_TYPE_VT) {
+                               int size = mono_class_value_size (field->type->data.klass, NULL);
+                               POP_VT(&td, size);
+                               WRITE32(&td, &size);
+                       }
+                       td.ip += 5;
+                       --td.sp;
+                       break;
+               case CEE_STOBJ: {
+                       int size;
+                       token = read32 (td.ip + 1);
+
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else
+                               klass = mono_class_get_full (image, token, generic_context);
+
+                       ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       if (td.sp [-1].type == STACK_TYPE_VT) {
+                               size = mono_class_value_size (klass, NULL);
+                               size = (size + 7) & ~7;
+                               td.vt_sp -= size;
+                       }
+                       td.ip += 5;
+                       td.sp -= 2;
+                       break;
+               }
+               case CEE_CONV_OVF_I_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
+#else
+                               ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
+#endif
+                               break;
+                       case STACK_TYPE_I8:
+                               /*FIX*/
+                               break;
+                       case STACK_TYPE_I4:
+#if SIZEOF_VOID_P == 8
+                               ADD_CODE(&td, MINT_CONV_I8_U4);
+#endif
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                               break;
+                       }
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       ++td.ip;
+                       break;
+               case CEE_CONV_OVF_I8_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
+                               break;
+                       case STACK_TYPE_I8:
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_I8_U4);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                               break;
+                       }
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       ++td.ip;
+                       break;
+               case CEE_BOX: {
+                       int size;
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else
+                               klass = mono_class_get_full (image, token, generic_context);
+                       g_assert (klass->valuetype);
+                       if (klass->byval_arg.type == MONO_TYPE_VALUETYPE && !klass->enumtype) {
+                               size = mono_class_value_size (klass, NULL);
+                               size = (size + 7) & ~7;
+                               td.vt_sp -= size;
+                       }
+                       ADD_CODE(&td, MINT_BOX);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
+                       td.ip += 5;
+                       break;
+               }
+               case CEE_NEWARR:
+                       CHECK_STACK (&td, 1);
+                       token = read32 (td.ip + 1);
+
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else
+                               klass = mono_class_get_full (image, token, generic_context);
+
+                       ADD_CODE(&td, MINT_NEWARR);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
+                       td.ip += 5;
+                       break;
+               case CEE_LDLEN:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_LDLEN);
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                       break;
+               case CEE_LDELEMA:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       token = read32 (td.ip + 1);
+
+                       if (method->wrapper_type != MONO_WRAPPER_NONE)
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                       else
+                               klass = mono_class_get_full (image, token, generic_context);
+
+                       ADD_CODE(&td, MINT_LDELEMA);
+                       ADD_CODE(&td, get_data_item_index (&td, klass));
+                       td.ip += 5;
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                       break;
+               case CEE_LDELEM_I1:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_I1);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_U1:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_U1);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_I2:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_I2);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_U2:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_U2);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_I4:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_I4);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_U4:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_U4);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_LDELEM_I8:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_I8);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+               case CEE_LDELEM_I:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_I);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                       break;
+               case CEE_LDELEM_R4:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_R4);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_LDELEM_R8:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_R8);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
+                       break;
+               case CEE_LDELEM_REF:
+                       CHECK_STACK (&td, 2);
+                       ENSURE_I4 (&td, 1);
+                       SIMPLE_OP (td, MINT_LDELEM_REF);
+                       --td.sp;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
+                       break;
+               case CEE_STELEM_I:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_I);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_I1:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_I1);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_I2:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_I2);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_I4:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_I4);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_I8:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_I8);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_R4:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_R4);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_R8:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_R8);
+                       td.sp -= 3;
+                       break;
+               case CEE_STELEM_REF:
+                       CHECK_STACK (&td, 3);
+                       ENSURE_I4 (&td, 2);
+                       SIMPLE_OP (td, MINT_STELEM_REF);
+                       td.sp -= 3;
+                       break;
+#if 0
+               case CEE_LDELEM: 
+               case CEE_STELEM: 
+
+               case CEE_CONV_OVF_U1:
+
+               case CEE_CONV_OVF_I8:
+
+#if SIZEOF_VOID_P == 8
+               case CEE_CONV_OVF_U:
+#endif
+               case CEE_REFANYVAL: ves_abort(); break;
+#endif
+               case CEE_CKFINITE:
+                       CHECK_STACK (&td, 1);
+                       SIMPLE_OP (td, MINT_CKFINITE);
+                       break;
+               case CEE_CONV_OVF_I1:
+               case CEE_CONV_OVF_I1_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_OVF_U1:
+               case CEE_CONV_OVF_U1_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_OVF_I2:
+               case CEE_CONV_OVF_I2_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+               case CEE_CONV_OVF_U2_UN:
+               case CEE_CONV_OVF_U2:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+#if SIZEOF_VOID_P == 4
+               case CEE_CONV_OVF_I:
+#endif
+               case CEE_CONV_OVF_I4:
+               case CEE_CONV_OVF_I4_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               if (*td.ip == CEE_CONV_OVF_I4_UN)
+                                       ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I4_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+#if SIZEOF_VOID_P == 4
+               case CEE_CONV_OVF_U:
+#endif
+               case CEE_CONV_OVF_U4:
+               case CEE_CONV_OVF_U4_UN:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               if (*td.ip != CEE_CONV_OVF_U4_UN)
+                                       ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                       break;
+#if SIZEOF_VOID_P == 8
+               case CEE_CONV_OVF_I:
+#endif
+               case CEE_CONV_OVF_I8:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_I8_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+#if SIZEOF_VOID_P == 8
+               case CEE_CONV_OVF_U:
+#endif
+               case CEE_CONV_OVF_U8:
+                       CHECK_STACK (&td, 1);
+                       switch (td.sp [-1].type) {
+                       case STACK_TYPE_R8:
+                               ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
+                               break;
+                       case STACK_TYPE_I4:
+                               ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
+                               break;
+                       case STACK_TYPE_I8:
+                               break;
+                       default:
+                               g_assert_not_reached ();
+                       }
+                       ++td.ip;
+                       SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
+                       break;
+               case CEE_LDTOKEN: {
+                       int size;
+                       gpointer handle;
+                       token = read32 (td.ip + 1);
+                       handle = mono_ldtoken (image, token, &klass, generic_context);
+                       mt = mint_type(&klass->byval_arg);
+                       g_assert (mt == MINT_TYPE_VT);
+                       size = mono_class_value_size (klass, NULL);
+                       g_assert (size == sizeof(gpointer));
+                       PUSH_VT(&td, sizeof(gpointer));
+                       ADD_CODE(&td, MINT_LDTOKEN);
+                       ADD_CODE(&td, get_data_item_index (&td, handle));
+                       PUSH_SIMPLE_TYPE(&td, stack_type [mt]);
+                       td.ip += 5;
+                       break;
+               }
+               case CEE_ADD_OVF:
+                       binary_arith_op(&td, MINT_ADD_OVF_I4);
+                       ++td.ip;
+                       break;
+               case CEE_ADD_OVF_UN:
+                       binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_MUL_OVF:
+                       binary_arith_op(&td, MINT_MUL_OVF_I4);
+                       ++td.ip;
+                       break;
+               case CEE_MUL_OVF_UN:
+                       binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SUB_OVF:
+                       binary_arith_op(&td, MINT_SUB_OVF_I4);
+                       ++td.ip;
+                       break;
+               case CEE_SUB_OVF_UN:
+                       binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
+                       ++td.ip;
+                       break;
+               case CEE_ENDFINALLY:
+                       SIMPLE_OP (td, MINT_ENDFINALLY);
+                       generating_code = 0;
+                       break;
+               case CEE_LEAVE:
+                       td.sp = td.stack;
+                       handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
+                       td.ip += 5;
+                       generating_code = 0;
+                       break;
+               case CEE_LEAVE_S:
+                       td.sp = td.stack;
+                       handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
+                       td.ip += 2;
+                       generating_code = 0;
+                       break;
+               case CEE_UNUSED41:
+                       ++td.ip;
+                       switch (*td.ip) {
+                               case CEE_MONO_CALLI_EXTRA_ARG:
+                                       /* Same as CEE_CALLI, llvm specific */
+                                       interp_transform_call (&td, method, domain, generic_context, is_bb_start, body_start_offset);
+                                       break;
+                               case CEE_MONO_ICALL: {
+                                       guint32 token;
+                                       gpointer func;
+                                       MonoJitICallInfo *info;
+
+                                       token = read32 (td.ip + 1);
+                                       td.ip += 5;
+                                       func = mono_method_get_wrapper_data (method, token);
+                                       info = mono_find_jit_icall_by_addr (func);
+                                       g_assert (info);
+
+                                       CHECK_STACK (&td, info->sig->param_count);
+                                       switch (info->sig->param_count) {
+                                       case 0:
+                                               if (MONO_TYPE_IS_VOID (info->sig->ret))
+                                                       ADD_CODE (&td,MINT_ICALL_V_V);
+                                               else
+                                                       ADD_CODE (&td, MINT_ICALL_V_P);
+                                               break;
+                                       case 1:
+                                               if (MONO_TYPE_IS_VOID (info->sig->ret))
+                                                       ADD_CODE (&td,MINT_ICALL_P_V);
+                                               else
+                                                       ADD_CODE (&td,MINT_ICALL_P_P);
+                                               break;
+                                       case 2:
+                                               if (MONO_TYPE_IS_VOID (info->sig->ret)) {
+                                                       if (info->sig->params [1]->type == MONO_TYPE_I4)
+                                                               ADD_CODE (&td,MINT_ICALL_PI_V);
+                                                       else
+                                                               ADD_CODE (&td,MINT_ICALL_PP_V);
+                                               } else {
+                                                       if (info->sig->params [1]->type == MONO_TYPE_I4)
+                                                               ADD_CODE (&td,MINT_ICALL_PI_P);
+                                                       else
+                                                               ADD_CODE (&td,MINT_ICALL_PP_P);
+                                               }
+                                               break;
+                                       case 3:
+                                               g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
+                                               if (info->sig->params [2]->type == MONO_TYPE_I4)
+                                                       ADD_CODE (&td,MINT_ICALL_PPI_V);
+                                               else
+                                                       ADD_CODE (&td,MINT_ICALL_PPP_V);
+                                               break;
+                                       default:
+                                               g_assert_not_reached ();
+                                       }
+
+                                       if (func == mono_ftnptr_to_delegate) {
+                                               g_error ("TODO: ?");
+                                               func = mono_interp_ftnptr_to_delegate;
+                                       }
+                                       ADD_CODE(&td, get_data_item_index (&td, func));
+                                       td.sp -= info->sig->param_count;
+
+                                       if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
+                                               td.sp ++;
+                                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
+                                       }
+                                       break;
+                               }
+                       case CEE_MONO_VTADDR: {
+                               int size;
+                               CHECK_STACK (&td, 1);
+                               if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
+                                       size = mono_class_native_size(td.sp [-1].klass, NULL);
+                               else
+                                       size = mono_class_value_size(td.sp [-1].klass, NULL);
+                               size = (size + 7) & ~7;
+                               ADD_CODE(&td, MINT_VTRESULT);
+                               ADD_CODE(&td, 0);
+                               WRITE32(&td, &size);
+                               td.vt_sp -= size;
+                               ++td.ip;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                               break;
+                       }
+                       case CEE_MONO_LDPTR:
+                       case CEE_MONO_CLASSCONST:
+                               token = read32 (td.ip + 1);
+                               td.ip += 5;
+                               ADD_CODE(&td, MINT_MONO_LDPTR);
+                               ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
+                               td.sp [0].type = STACK_TYPE_I;
+                               ++td.sp;
+                               break;
+                       case CEE_MONO_OBJADDR:
+                               CHECK_STACK (&td, 1);
+                               ++td.ip;
+                               td.sp[-1].type = STACK_TYPE_MP;
+                               /* do nothing? */
+                               break;
+                       case CEE_MONO_NEWOBJ:
+                               token = read32 (td.ip + 1);
+                               td.ip += 5;
+                               ADD_CODE(&td, MINT_MONO_NEWOBJ);
+                               ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
+                               td.sp [0].type = STACK_TYPE_O;
+                               ++td.sp;
+                               break;
+                       case CEE_MONO_RETOBJ:
+                               CHECK_STACK (&td, 1);
+                               token = read32 (td.ip + 1);
+                               td.ip += 5;
+                               ADD_CODE(&td, MINT_MONO_RETOBJ);
+                               td.sp--;
+
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                               
+                               /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
+
+                               if (td.sp > td.stack)
+                                       g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
+                               break;
+                       case CEE_MONO_LDNATIVEOBJ:
+                               token = read32 (td.ip + 1);
+                               td.ip += 5;
+                               klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
+                               g_assert(klass->valuetype);
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                               break;
+                       case CEE_MONO_SAVE_LMF:
+                       case CEE_MONO_RESTORE_LMF:
+                       case CEE_MONO_NOT_TAKEN:
+                               ++td.ip;
+                               break;
+                       case CEE_MONO_LDPTR_INT_REQ_FLAG:
+                               ADD_CODE (&td, MINT_MONO_LDPTR);
+                               ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
+                               PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
+                               ++td.ip;
+                               break;
+                       default:
+                               g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
+                       }
+                       break;
+#if 0
+               case CEE_PREFIX7:
+               case CEE_PREFIX6:
+               case CEE_PREFIX5:
+               case CEE_PREFIX4:
+               case CEE_PREFIX3:
+               case CEE_PREFIX2:
+               case CEE_PREFIXREF: ves_abort(); break;
+#endif
+               /*
+                * Note: Exceptions thrown when executing a prefixed opcode need
+                * to take into account the number of prefix bytes (usually the
+                * throw point is just (ip - n_prefix_bytes).
+                */
+               case CEE_PREFIX1: 
+                       ++td.ip;
+                       switch (*td.ip) {
+#if 0
+                       case CEE_ARGLIST: ves_abort(); break;
+#endif
+                       case CEE_CEQ:
+                               CHECK_STACK(&td, 2);
+                               if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
+                                       ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
+                               else
+                                       ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
+                               --td.sp;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                               ++td.ip;
+                               break;
+                       case CEE_CGT:
+                               CHECK_STACK(&td, 2);
+                               if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
+                                       ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
+                               else
+                                       ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
+                               --td.sp;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                               ++td.ip;
+                               break;
+                       case CEE_CGT_UN:
+                               CHECK_STACK(&td, 2);
+                               if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
+                                       ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
+                               else
+                                       ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
+                               --td.sp;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                               ++td.ip;
+                               break;
+                       case CEE_CLT:
+                               CHECK_STACK(&td, 2);
+                               if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
+                                       ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
+                               else
+                                       ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
+                               --td.sp;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                               ++td.ip;
+                               break;
+                       case CEE_CLT_UN:
+                               CHECK_STACK(&td, 2);
+                               if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
+                                       ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
+                               else
+                                       ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
+                               --td.sp;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
+                               ++td.ip;
+                               break;
+                       case CEE_LDVIRTFTN: /* fallthrough */
+                       case CEE_LDFTN: {
+                               MonoMethod *m;
+                               if (*td.ip == CEE_LDVIRTFTN) {
+                                       CHECK_STACK (&td, 1);
+                                       --td.sp;
+                               }
+                               token = read32 (td.ip + 1);
+                               if (method->wrapper_type != MONO_WRAPPER_NONE)
+                                       m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
+                               else 
+                                       m = mono_get_method_full (image, token, NULL, generic_context);
+
+                               if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
+                                       m = mono_marshal_get_synchronized_wrapper (m);
+
+                               ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
+                               ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
+                               mono_error_cleanup (&error); /* FIXME: don't swallow the error */
+                               td.ip += 5;
+                               PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
+                               break;
+                       }
+                       case CEE_LDARG:
+                               load_arg (&td, read16 (td.ip + 1));
+                               td.ip += 3;
+                               break;
+                       case CEE_LDARGA: {
+                               int n = read16 (td.ip + 1);
+                               if (n == 0 && signature->hasthis) 
+                                       ADD_CODE(&td, MINT_LDTHISA);
+                               else {
+                                       ADD_CODE(&td, MINT_LDARGA);
+                                       ADD_CODE(&td, td.rtm->arg_offsets [n - signature->hasthis]); /* FIX for large offsets */
+                               }
+                               PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
+                               td.ip += 3;
+                               break;
+                       }
+                       case CEE_STARG:
+                               store_arg (&td, read16 (td.ip + 1));
+                               td.ip += 3;
+                               break;
+                       case CEE_LDLOC:
+                               load_local (&td, read16 (td.ip + 1));
+                               td.ip += 3;
+                               break;
+                       case CEE_LDLOCA:
+                               ADD_CODE(&td, MINT_LDLOCA_S);
+                               ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
+                               PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
+                               td.ip += 3;
+                               break;
+                       case CEE_STLOC:
+                               store_local (&td, read16 (td.ip + 1));
+                               td.ip += 3;
+                               break;
+                       case CEE_LOCALLOC:
+                               CHECK_STACK (&td, 1);
+#if SIZEOF_VOID_P == 8
+                               if (td.sp [-1].type == STACK_TYPE_I8)
+                                       ADD_CODE(&td, MINT_CONV_I4_I8);
+#endif                         
+                               ADD_CODE(&td, MINT_LOCALLOC);
+                               if (td.sp != td.stack + 1)
+                                       g_warning("CEE_LOCALLOC: stack not empty");
+                               ++td.ip;
+                               SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
+                               break;
+#if 0
+                       case CEE_UNUSED57: ves_abort(); break;
+                       case CEE_ENDFILTER: ves_abort(); break;
+#endif
+                       case CEE_UNALIGNED_:
+                               ++td.ip;
+                               /* FIX: should do something? */;
+                               break;
+                       case CEE_VOLATILE_:
+                               ++td.ip;
+                               /* FIX: should do something? */;
+                               break;
+                       case CEE_TAIL_:
+                               ++td.ip;
+                               /* FIX: should do something? */;
+                               break;
+                       case CEE_INITOBJ:
+                               CHECK_STACK(&td, 1);
+                               token = read32 (td.ip + 1);
+                               klass = mono_class_get_full (image, token, generic_context);
+                               ADD_CODE(&td, MINT_INITOBJ);
+                               i32 = mono_class_value_size (klass, NULL);
+                               WRITE32(&td, &i32);
+                               td.ip += 5;
+                               --td.sp;
+                               break;
+                       case CEE_CPBLK:
+                               CHECK_STACK(&td, 3);
+                               /* FIX? convert length to I8? */
+                               ADD_CODE(&td, MINT_CPBLK);
+                               td.sp -= 3;
+                               ++td.ip;
+                               break;
+#if 0
+                       case CEE_CONSTRAINED_: {
+                               guint32 token;
+                               /* FIXME: implement */
+                               ++ip;
+                               token = read32 (ip);
+                               ip += 4;
+                               break;
+                       }
+#endif
+                       case CEE_INITBLK:
+                               CHECK_STACK(&td, 3);
+                               ADD_CODE(&td, MINT_INITBLK);
+                               td.sp -= 3;
+                               break;
+#if 0
+                       case CEE_NO_:
+                               /* FIXME: implement */
+                               ip += 2;
+                               break;
+#endif
+                       case CEE_RETHROW:
+                               SIMPLE_OP (td, MINT_RETHROW);
+                               generating_code = 0;
+                               break;
+                       case CEE_SIZEOF: {
+                               gint32 size;
+                               token = read32 (td.ip + 1);
+                               td.ip += 5;
+                               if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
+                                       int align;
+                                       MonoType *type = mono_type_create_from_typespec (image, token);
+                                       size = mono_type_size (type, &align);
+                               } else {
+                                       guint32 align;
+                                       MonoClass *szclass = mono_class_get_full (image, token, generic_context);
+                                       mono_class_init (szclass);
+#if 0
+                                       if (!szclass->valuetype)
+                                               THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
+#endif
+                                       size = mono_class_value_size (szclass, &align);
+                               } 
+                               ADD_CODE(&td, MINT_LDC_I4);
+                               WRITE32(&td, &size);
+                               PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
+                               break;
+                       }
+#if 0
+                       case CEE_REFANYTYPE: ves_abort(); break;
+#endif
+                       default:
+                               g_error ("transform.c: Unimplemented opcode: 0xFE %02x (%s) at 0x%x\n", *td.ip, mono_opcode_name (256 + *td.ip), td.ip-header->code);
+                       }
+                       break;
+               default:
+                       g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
+               }
+
+               if (td.new_ip - td.new_code != new_in_start_offset) 
+                       td.last_new_ip = td.new_code + new_in_start_offset;
+               else if (td.is_bb_start [td.in_start - td.il_code])
+                       td.is_bb_start [td.ip - td.il_code] = 1;
+                       
+               td.last_ip = td.in_start;
+       }
+
+       if (mono_interp_traceopt) {
+               const guint16 *p = td.new_code;
+               printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
+               printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
+               while (p < td.new_ip) {
+                       p = mono_interp_dis_mintop(td.new_code, p);
+                       printf("\n");
+               }
+       }
+
+       rtm->clauses = mono_mempool_alloc (domain->mp, header->num_clauses * sizeof(MonoExceptionClause));
+       memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
+       rtm->code = mono_mempool_alloc (domain->mp, (td.new_ip - td.new_code) * sizeof(gushort));
+       memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
+       g_free (td.new_code);
+       rtm->new_body_start = rtm->code + body_start_offset;
+       rtm->num_clauses = header->num_clauses;
+       for (i = 0; i < header->num_clauses; i++) {
+               MonoExceptionClause *c = rtm->clauses + i;
+               int end_off = c->try_offset + c->try_len;
+               c->try_offset = td.in_offsets [c->try_offset];
+               c->try_len = td.in_offsets [end_off] - c->try_offset;
+               end_off = c->handler_offset + c->handler_len;
+               c->handler_offset = td.in_offsets [c->handler_offset];
+               c->handler_len = td.in_offsets [end_off] - c->handler_offset;
+       }
+       rtm->vt_stack_size = td.max_vt_sp;
+       rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
+       rtm->data_items = mono_mempool_alloc (domain->mp, td.n_data_items * sizeof (td.data_items [0]));
+       memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
+       g_free (td.in_offsets);
+       g_free (td.forward_refs);
+       for (i = 0; i < header->code_size; ++i)
+               g_free (td.stack_state [i]);
+       g_free (td.stack_state);
+       g_free (td.stack_height);
+       g_free (td.vt_stack_size);
+       g_free (td.data_items);
+       g_hash_table_destroy (td.data_hash);
+}
+
+static mono_mutex_t calc_section;
+
+void 
+mono_interp_transform_init (void)
+{
+       mono_os_mutex_init_recursive(&calc_section);
+}
+
+MonoException *
+mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
+{
+       int i, align, size, offset;
+       MonoMethod *method = runtime_method->method;
+       MonoImage *image = method->klass->image;
+       MonoMethodHeader *header = mono_method_get_header (method);
+       MonoMethodSignature *signature = mono_method_signature (method);
+       register const unsigned char *ip, *end;
+       const MonoOpcode *opcode;
+       MonoMethod *m;
+       MonoClass *class;
+       MonoDomain *domain = mono_domain_get ();
+       unsigned char *is_bb_start;
+       int in;
+       MonoVTable *method_class_vt;
+       int backwards;
+       MonoGenericContext *generic_context = NULL;
+
+       // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
+       method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
+       if (!method_class_vt->initialized) {
+               jmp_buf env;
+               MonoInvocation *last_env_frame = context->env_frame;
+               jmp_buf *old_env = context->current_env;
+
+               if (setjmp(env)) {
+                       MonoException *failed = context->env_frame->ex;
+                       context->env_frame->ex = NULL;
+                       context->env_frame = last_env_frame;
+                       context->current_env = old_env;
+                       return failed;
+               }
+               context->env_frame = context->current_frame;
+               context->current_env = &env;
+               mono_runtime_class_init (method_class_vt);
+               context->env_frame = last_env_frame;
+               context->current_env = old_env;
+       }
+
+       mono_profiler_method_jit (method); /* sort of... */
+
+       if (mono_method_signature (method)->is_inflated)
+               generic_context = &((MonoMethodInflated *) method)->context;
+
+       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
+               MonoMethod *nm = NULL;
+               mono_os_mutex_lock(&calc_section);
+               if (runtime_method->transformed) {
+                       mono_os_mutex_unlock(&calc_section);
+                       g_error ("FIXME: no jit info?");
+                       mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
+                       return NULL;
+               }
+
+               /* assumes all internal calls with an array this are built in... */
+               if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
+                       nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
+               } else {
+                       const char *name = method->name;
+                       if (method->klass->parent == mono_defaults.multicastdelegate_class) {
+                               if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
+                                       nm = mono_marshal_get_delegate_invoke (method, NULL);
+                               } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
+                                       nm = mono_marshal_get_delegate_begin_invoke (method);
+                               } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
+                                       nm = mono_marshal_get_delegate_end_invoke (method);
+                               }
+                       } 
+                       if (nm == NULL) {
+                               runtime_method->code = g_malloc(sizeof(short));
+                               runtime_method->code[0] = MINT_CALLRUN;
+                       }
+               }
+               if (nm == NULL) {
+                       runtime_method->stack_size = sizeof (stackval); /* for tracing */
+                       runtime_method->alloca_size = runtime_method->stack_size;
+                       runtime_method->transformed = TRUE;
+                       mono_os_mutex_unlock(&calc_section);
+                       mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
+                       return NULL;
+               }
+               method = nm;
+               header = mono_method_get_header (nm);
+               mono_os_mutex_unlock(&calc_section);
+       }
+       g_assert ((signature->param_count + signature->hasthis) < 1000);
+       g_assert (header->max_stack < 10000);
+       /* intern the strings in the method. */
+       ip = header->code;
+       end = ip + header->code_size;
+
+       is_bb_start = g_malloc0(header->code_size);
+       is_bb_start [0] = 1;
+       while (ip < end) {
+               in = *ip;
+               if (in == 0xfe) {
+                       ip++;
+                       in = *ip + 256;
+               }
+               else if (in == 0xf0) {
+                       ip++;
+                       in = *ip + MONO_CEE_MONO_ICALL;
+               }
+               opcode = &mono_opcodes [in];
+               switch (opcode->argument) {
+               case MonoInlineNone:
+                       ++ip;
+                       break;
+               case MonoInlineString:
+                       if (method->wrapper_type == MONO_WRAPPER_NONE)
+                               mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
+                       ip += 5;
+                       break;
+               case MonoInlineType:
+                       if (method->wrapper_type == MONO_WRAPPER_NONE) {
+                               class = mono_class_get_full (image, read32 (ip + 1), generic_context);
+                               mono_class_init (class);
+                               /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
+#if 0
+                               g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
+                               if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
+                                       mono_class_vtable (domain, class);
+#endif
+                       }
+                       ip += 5;
+                       break;
+               case MonoInlineMethod:
+                       if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
+                               m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
+                               if (m == NULL) {
+                                       g_free (is_bb_start);
+                                       g_error ("FIXME: where to get method and class string?"); 
+                                       return NULL;
+                                       // return mono_get_exception_missing_method ();
+                               }
+                               mono_class_init (m->klass);
+                               if (!mono_class_is_interface (m->klass))
+                                       mono_class_vtable (domain, m->klass);
+                       }
+                       ip += 5;
+                       break;
+               case MonoInlineField:
+               case MonoInlineSig:
+               case MonoInlineI:
+               case MonoInlineTok:
+               case MonoShortInlineR:
+                       ip += 5;
+                       break;
+               case MonoInlineBrTarget:
+                       offset = read32 (ip + 1);
+                       ip += 5;
+                       backwards = offset < 0;
+                       offset += ip - header->code;
+                       g_assert (offset >= 0 && offset < header->code_size);
+                       is_bb_start [offset] |= backwards ? 2 : 1;
+                       break;
+               case MonoShortInlineBrTarget:
+                       offset = ((gint8 *)ip) [1];
+                       ip += 2;
+                       backwards = offset < 0;
+                       offset += ip - header->code;
+                       g_assert (offset >= 0 && offset < header->code_size);
+                       is_bb_start [offset] |= backwards ? 2 : 1;
+                       break;
+               case MonoInlineVar:
+                       ip += 3;
+                       break;
+               case MonoShortInlineVar:
+               case MonoShortInlineI:
+                       ip += 2;
+                       break;
+               case MonoInlineSwitch: {
+                       guint32 n;
+                       const unsigned char *next_ip;
+                       ++ip;
+                       n = read32 (ip);
+                       ip += 4;
+                       next_ip = ip + 4 * n;
+                       for (i = 0; i < n; i++) {
+                               offset = read32 (ip);
+                               backwards = offset < 0;
+                               offset += next_ip - header->code;
+                               g_assert (offset >= 0 && offset < header->code_size);
+                               is_bb_start [offset] |= backwards ? 2 : 1;
+                               ip += 4;
+                       }
+                       break;
+               }
+               case MonoInlineR:
+               case MonoInlineI8:
+                       ip += 9;
+                       break;
+               default:
+                       g_assert_not_reached ();
+               }
+       }
+       // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
+
+       /* the rest needs to be locked so it is only done once */
+       mono_os_mutex_lock(&calc_section);
+       if (runtime_method->transformed) {
+               mono_os_mutex_unlock(&calc_section);
+               g_free (is_bb_start);
+               mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
+               return NULL;
+       }
+
+       runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
+       runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
+       runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
+       offset = 0;
+       for (i = 0; i < header->num_locals; ++i) {
+               size = mono_type_size (header->locals [i], &align);
+               offset += align - 1;
+               offset &= ~(align - 1);
+               runtime_method->local_offsets [i] = offset;
+               offset += size;
+       }
+       offset = (offset + 7) & ~7;
+       runtime_method->locals_size = offset;
+       g_assert (runtime_method->locals_size < 65536);
+       offset = 0;
+       runtime_method->arg_offsets = g_malloc(signature->param_count * sizeof(guint32));
+       for (i = 0; i < signature->param_count; ++i) {
+               if (signature->pinvoke) {
+                       guint32 dummy;
+                       size = mono_type_native_stack_size (signature->params [i], &dummy);
+                       align = 8;
+               }
+               else
+                       size = mono_type_stack_size (signature->params [i], &align);
+               offset += align - 1;
+               offset &= ~(align - 1);
+               runtime_method->arg_offsets [i] = offset;
+               offset += size;
+       }
+       offset = (offset + 7) & ~7;
+       runtime_method->args_size = offset;
+       g_assert (runtime_method->args_size < 10000);
+
+       generate(method, runtime_method, is_bb_start);
+
+       g_free (is_bb_start);
+
+       mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
+       runtime_method->transformed = TRUE;
+       mono_os_mutex_unlock(&calc_section);
+
+       return NULL;
+}
+
index cca68be1161ace33f3374e0fd61081cb316c0249..72b6df1f747c65d5a2ca5b04f59f7a7f11bccc22 100644 (file)
@@ -111,6 +111,8 @@ int mini_verbose = 0;
  */
 gboolean mono_use_llvm = FALSE;
 
+gboolean mono_use_interpreter = FALSE;
+
 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
 static mono_mutex_t jit_mutex;
index f1ab4759122b03e3c5344d748619c3a6b411f902..236c5528286c6fd4e75435dc378d7119275a75dc 100644 (file)
@@ -562,6 +562,7 @@ extern const char *mono_build_date;
 extern gboolean mono_do_signal_chaining;
 extern gboolean mono_do_crash_chaining;
 extern MONO_API gboolean mono_use_llvm;
+extern MONO_API gboolean mono_use_interpreter;
 extern gboolean mono_do_single_method_regression;
 extern guint32 mono_single_method_regression_opt;
 extern MonoMethod *mono_current_single_method;
@@ -2818,6 +2819,9 @@ void    mono_arch_notify_pending_exc            (MonoThreadInfo *info);
 guint8* mono_arch_get_call_target               (guint8 *code);
 guint32 mono_arch_get_plt_info_offset           (guint8 *plt_entry, mgreg_t *regs, guint8 *code);
 GSList *mono_arch_get_trampolines               (gboolean aot);
+#ifdef ENABLE_INTERPRETER
+gpointer mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info);
+#endif
 
 /* Handle block guard */
 gpointer mono_arch_install_handler_block_guard (MonoJitInfo *ji, MonoJitExceptionInfo *clause, MonoContext *ctx, gpointer new_value);
index 0387439e27ba8d056d45895d4d610281c788a008..c86f9b5091587f95cd613b8753239ccdf64a35e6 100644 (file)
@@ -969,6 +969,88 @@ mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gbo
 
        return buf;
 }
+
+
+#ifdef ENABLE_INTERPRETER
+/*
+ * mono_arch_get_enter_icall_trampoline:
+ *
+ *   A trampoline that handles the transition from interpreter into native world.
+ *   It requiers to set up a descriptor (MethodArguments) that describes the
+ *   required arguments passed to the callee.
+ */
+gpointer
+mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
+{
+       guint8 *start = NULL, *code, *exits[4], *leave_tramp;
+       MonoJumpInfo *ji = NULL;
+       GSList *unwind_ops = NULL;
+       static int arg_regs[] = {AMD64_ARG_REG1, AMD64_ARG_REG2, AMD64_ARG_REG3, AMD64_ARG_REG4};
+       int i;
+
+       start = code = (guint8 *) mono_global_codeman_reserve (256);
+
+       /* save MethodArguments* onto stack */
+       amd64_push_reg (code, AMD64_ARG_REG2);
+
+       /* save target address on stack */
+       amd64_push_reg (code, AMD64_ARG_REG1);
+       amd64_push_reg (code, AMD64_RAX);
+
+       /* load pointer to MethodArguments* into R11 */
+       amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, 8);
+       
+       /* TODO: do float stuff first */
+
+       /* move ilen into RAX */ // TODO: struct offset
+       amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 0, 8);
+       /* load pointer to iregs into R11 */ // TODO: struct offset
+       amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 8, 8);
+
+       for (i = 0; i < 4; i++) {
+               amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
+               exits [i] = code;
+               x86_branch8 (code, X86_CC_Z, 0, FALSE);
+
+               amd64_mov_reg_membase (code, arg_regs [i], AMD64_R11, i * sizeof (gpointer), 8);
+               amd64_dec_reg_size (code, AMD64_RAX, 1);
+       }
+
+       for (i = 0; i < 4; i++) {
+               x86_patch (exits [i], code);
+       }
+
+
+       amd64_pop_reg (code, AMD64_RAX);
+       amd64_pop_reg (code, AMD64_R11);
+
+       /* call into native function */
+       amd64_call_reg (code, AMD64_R11);
+
+       /* load MethodArguments */
+       amd64_pop_reg (code, AMD64_R11);
+       /* load retval */ // TODO: struct offset
+       amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0x20, 8);
+
+       amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
+       leave_tramp = code;
+       x86_branch8 (code, X86_CC_Z, 0, FALSE);
+
+       amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, 8);
+
+       x86_patch (leave_tramp, code);
+       amd64_ret (code);
+
+
+       mono_arch_flush_icache (start, code - start);
+       mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL);
+
+       if (info)
+               *info = mono_tramp_info_create ("enter_icall_trampoline", start, code - start, ji, unwind_ops);
+
+       return start;
+}
+#endif
 #endif /* !DISABLE_JIT */
 
 #ifdef DISABLE_JIT
@@ -1034,4 +1116,13 @@ mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gbo
        g_assert_not_reached ();
        return NULL;
 }
+
+#ifdef ENABLE_INTERPRETER
+gpointer
+mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
+{
+       g_assert_not_reached ();
+       return NULL;
+}
+#endif
 #endif /* DISABLE_JIT */
index 1365704b9fe6dcdbc7ffc120e2f190840d5afb7f..ac748efc75a92d276a783b7745dd503e92e00ffa 100755 (executable)
@@ -57,6 +57,9 @@ elif [[ ${label} != w* ]] && [[ ${label} != 'debian-8-ppc64el' ]] && [[ ${label}
         # only enable build of the additional profiles on one architecture to save time
         EXTRA_CONF_FLAGS="${EXTRA_CONF_FLAGS} --with-runtime_preset=all"
     fi
+elif [[ ${CI_TAGS} == *'interpreter'* ]];
+    then
+    EXTRA_CONF_FLAGS="${EXTRA_CONF_FLAGS} --with-interpreter=yes";
 fi
 
 if [ -x "/usr/bin/dpkg-architecture" ];
@@ -92,6 +95,9 @@ if [[ ${CI_TAGS} == *'acceptance-tests'* ]];
 elif [[ ${CI_TAGS} == *'profiler-stress-tests'* ]];
     then
        $(dirname "${BASH_SOURCE[0]}")/run-test-profiler-stress-tests.sh
+elif [[ ${CI_TAGS} == *'interpreter'* ]];
+    then
+    $(dirname "${BASH_SOURCE[0]}")/run-test-interpreter.sh
 elif [[ ${CI_TAGS} == *'no-tests'* ]];
     then
        exit 0
diff --git a/scripts/ci/run-test-interpreter.sh b/scripts/ci/run-test-interpreter.sh
new file mode 100755 (executable)
index 0000000..f148a90
--- /dev/null
@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+export TESTCMD=`dirname "${BASH_SOURCE[0]}"`/run-step.sh
+
+${TESTCMD} --label=interpreter-regression --timeout=10m make -C mono/mini richeck