* src/vm/jit/code.c (code_get_stack_frame_size): Implement stack alignment
[cacao.git] / src / vm / jit / mips / codegen.c
index 16d50a5f7c7718cd452c7c5251d25e6af0bbab1c..19fa69dd6998ce433d3767f39a78422f69279d8a 100644 (file)
@@ -1,9 +1,9 @@
 /* src/vm/jit/mips/codegen.c - machine code generator for MIPS
 
-   Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
-   R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
-   C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
-   Institut f. Computersprachen - TU Wien
+   Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+   C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+   E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+   J. Wenninger, Institut f. Computersprachen - TU Wien
 
    This file is part of CACAO.
 
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
 
-   Contact: cacao@complang.tuwien.ac.at
+   Contact: cacao@cacaojvm.org
 
    Authors: Andreas Krall
             Reinhard Grafl
 
    Changes: Christian Thalinger
             Christian Ullrich
+            Edwin Steiner
 
    Contains the codegenerator for an MIPS (R4000 or higher) processor.
    This module generates MIPS machine code for a sequence of
    intermediate code commands (ICMDs).
 
-   $Id: codegen.c 3023 2005-07-12 23:49:49Z twisti $
+   $Id: codegen.c 4654 2006-03-19 19:46:11Z edwin $
 
 */
 
 
+#include "config.h"
+
 #include <assert.h>
 #include <stdio.h>
 
-#include "config.h"
+#include "vm/types.h"
 
 #include "md.h"
 #include "md-abi.h"
-#include "md-abi.inc"
 
 #include "vm/jit/mips/arch.h"
 #include "vm/jit/mips/codegen.h"
-#include "vm/jit/mips/types.h"
 
-#include "cacao/cacao.h"
 #include "native/native.h"
 #include "vm/builtin.h"
+#include "vm/class.h"
+#include "vm/exceptions.h"
+#include "vm/options.h"
 #include "vm/stringlocal.h"
+#include "vm/vm.h"
 #include "vm/jit/asmpart.h"
-#include "vm/jit/codegen.inc"
+#include "vm/jit/codegen-common.h"
+#include "vm/jit/dseg.h"
 #include "vm/jit/jit.h"
-
-#if defined(LSRA)
-# include "vm/jit/lsra.h"
-# include "vm/jit/lsra.inc"
-#endif
-
 #include "vm/jit/patcher.h"
 #include "vm/jit/reg.h"
-#include "vm/jit/reg.inc"
+#include "vm/jit/replace.h"
+
+#if defined(ENABLE_LSRA)
+# include "vm/jit/allocator/lsra.h"
+#endif
 
 
 /* codegen *********************************************************************
@@ -76,7 +79,7 @@
 
 *******************************************************************************/
 
-void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
+bool codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 {
        s4                  len, s1, s2, s3, d, disp;
        ptrint              a;
@@ -91,6 +94,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
        methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
        builtintable_entry *bte;
        methoddesc         *md;
+       rplpoint           *replacementpoint;
 
        {
        s4 i, p, t, l;
@@ -139,9 +143,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
        (void) dseg_adds4(cd, m->isleafmethod);                 /* IsLeaf         */
        (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse);  /* IntSave        */
        (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse);  /* FltSave        */
-
        dseg_addlinenumbertablesize(cd);
-
        (void) dseg_adds4(cd, cd->exceptiontablelength);        /* ExTableSize    */
 
        /* create exception table */
@@ -155,9 +157,11 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
        
        /* initialize mcode variables */
        
-       mcodeptr = (s4 *) cd->mcodebase;
-       cd->mcodeend = (s4 *) (cd->mcodebase + cd->mcodesize);
-       MCODECHECK(128 + m->paramcount);
+       mcodeptr = (s4 *) cd->mcodeptr;
+
+       /* initialize the last patcher pointer */
+
+       cd->lastmcodeptr = (u1 *) mcodeptr;
 
        /* create stack frame (if necessary) */
 
@@ -234,7 +238,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                s1 = rd->memuse;
 
-               if (runverbose) {
+               if (opt_verbosecall) {
                        M_LDA(REG_SP, REG_SP, -(INT_ARG_CNT + FLT_ARG_CNT) * 8);
 
                        for (p = 0; p < INT_ARG_CNT; p++)
@@ -250,27 +254,22 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                if (m->flags & ACC_STATIC) {
                        p = dseg_addaddress(cd, m->class);
-                       M_ALD(REG_ITMP1, REG_PV, p);
-                       M_AST(REG_ITMP1, REG_SP, s1 * 8);
+                       M_ALD(rd->argintregs[0], REG_PV, p);
                        p = dseg_addaddress(cd, BUILTIN_staticmonitorenter);
                        M_ALD(REG_ITMP3, REG_PV, p);
                        M_JSR(REG_RA, REG_ITMP3);
-                       M_INTMOVE(REG_ITMP1, rd->argintregs[0]); /* branch delay */
-                       d = -(s4) ((u1 *) mcodeptr - cd->mcodebase);
-                       M_LDA(REG_PV, REG_RA, d);
-                       
+                       M_AST(rd->argintregs[0], REG_SP, s1 * 8);         /* branch delay */
+
                } else {
                        M_BEQZ(rd->argintregs[0], 0);
-                       codegen_addxnullrefs(cd, mcodeptr);
+                       codegen_add_nullpointerexception_ref(cd, mcodeptr);
                        p = dseg_addaddress(cd, BUILTIN_monitorenter);
                        M_ALD(REG_ITMP3, REG_PV, p);
                        M_JSR(REG_RA, REG_ITMP3);
-                       M_AST(rd->argintregs[0], REG_SP, s1 * 8); /* br delay */
-                       d = -(s4) ((u1 *) mcodeptr - cd->mcodebase);
-                       M_LDA(REG_PV, REG_RA, d);
+                       M_AST(rd->argintregs[0], REG_SP, s1 * 8);         /* branch delay */
                }
 
-               if (runverbose) {
+               if (opt_verbosecall) {
                        for (p = 0; p < INT_ARG_CNT; p++)
                                M_LLD(rd->argintregs[p], REG_SP, p * 8);
 
@@ -285,9 +284,9 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
        /* copy argument registers to stack and call trace function */
 
-       if (runverbose) {
+       if (opt_verbosecall) {
                M_LDA(REG_SP, REG_SP, -(2 + INT_ARG_CNT + FLT_ARG_CNT + INT_TMP_CNT + FLT_TMP_CNT) * 8);
-               M_LST(REG_RA, REG_SP, 1 * 8);
+               M_AST(REG_RA, REG_SP, 1 * 8);
 
                /* save integer argument registers */
 
@@ -326,13 +325,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                p = dseg_addaddress(cd, m);
                M_ALD(REG_ITMP1, REG_PV, p);
-               M_LST(REG_ITMP1, REG_SP, 0);
-               p = dseg_addaddress(cd, (void *) builtin_trace_args);
-               M_ALD(REG_ITMP3, REG_PV, p);
+               M_AST(REG_ITMP1, REG_SP, 0 * 8);
+               disp = dseg_addaddress(cd, (void *) builtin_trace_args);
+               M_ALD(REG_ITMP3, REG_PV, disp);
                M_JSR(REG_RA, REG_ITMP3);
                M_NOP;
 
-               M_LLD(REG_RA, REG_SP, 1 * 8);
+               M_ALD(REG_RA, REG_SP, 1 * 8);
 
                /* restore integer argument registers */
 
@@ -374,10 +373,30 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
        /* end of header generation */
 
+       replacementpoint = cd->code->rplpoints;
+
        /* walk through all basic blocks */
 
        for (bptr = m->basicblocks; bptr != NULL; bptr = bptr->next) {
 
+               /* handle replacement points */
+
+               if (bptr->bitflags & BBFLAG_REPLACEMENT && bptr->flags >= BBREACHED) {
+
+                       /* 8-byte align pc */
+                       if ((ptrint)mcodeptr & 4) {
+                               M_NOP;
+                       }
+                       
+                       replacementpoint->pc = (u1*)(ptrint)((u1*)mcodeptr - cd->mcodebase);
+                       replacementpoint++;
+
+                       assert(cd->lastmcodeptr <= (u1*)mcodeptr);
+                       cd->lastmcodeptr = (u1*)cd->mcodeptr + 2*4; /* br + delay slot */
+               }
+
+               /* store relative start of block */
+
                bptr->mpc = (s4) ((u1 *) mcodeptr - cd->mcodebase);
 
                if (bptr->flags >= BBREACHED) {
@@ -397,7 +416,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                src = bptr->instack;
                len = bptr->indepth;
                MCODECHECK(64+len);
-#ifdef LSRA
+#if defined(ENABLE_LSRA)
                if (opt_lsra) {
                while (src != NULL) {
                        len--;
@@ -431,7 +450,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                                        M_TFLTMOVE(s2, s1, d);
 
                                                } else {
-                                                       M_DLD(d, REG_SP, 8 * rd->interfaces[len][s2].regoff);
+                                                       M_DLD(d, REG_SP, rd->interfaces[len][s2].regoff * 8);
                                                }
                                                store_reg_to_var_flt(src, d);
 
@@ -441,7 +460,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                                        M_INTMOVE(s1,d);
 
                                                } else {
-                                                       M_LLD(d, REG_SP, 8 * rd->interfaces[len][s2].regoff);
+                                                       M_LLD(d, REG_SP, rd->interfaces[len][s2].regoff * 8);
                                                }
                                                store_reg_to_var_int(src, d);
                                        }
@@ -449,13 +468,14 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        }
                        src = src->prev;
                }
-#ifdef LSRA
+#if defined(ENABLE_LSRA)
                }
 #endif
                /* walk through all instructions */
                
                src = bptr->instack;
                len = bptr->icount;
+               currentline = 0;
 
                for (iptr = bptr->iinstr; len > 0; src = iptr->dst, len--, iptr++) {
                        if (iptr->line != currentline) {
@@ -474,7 +494,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src, REG_ITMP1);
                        M_BEQZ(s1, 0);
-                       codegen_addxnullrefs(cd, mcodeptr);
+                       codegen_add_nullpointerexception_ref(cd, mcodeptr);
                        M_NOP;
                        break;
 
@@ -500,8 +520,8 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* op1 = 0, val.f = constant                    */
 
                        d = reg_of_var(rd, iptr->dst, REG_FTMP1);
-                       a = dseg_addfloat(cd, iptr->val.f);
-                       M_FLD(d, REG_PV, a);
+                       disp = dseg_addfloat(cd, iptr->val.f);
+                       M_FLD(d, REG_PV, disp);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
                        
@@ -509,8 +529,8 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* op1 = 0, val.d = constant                    */
 
                        d = reg_of_var(rd, iptr->dst, REG_FTMP1);
-                       a = dseg_adddouble(cd, iptr->val.d);
-                       M_DLD(d, REG_PV, a);
+                       disp = dseg_adddouble(cd, iptr->val.d);
+                       M_DLD(d, REG_PV, disp);
                        store_reg_to_var_flt (iptr->dst, d);
                        break;
 
@@ -518,11 +538,27 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* op1 = 0, val.a = constant                    */
 
                        d = reg_of_var(rd, iptr->dst, REG_ITMP1);
-                       if (iptr->val.a) {
-                               a = dseg_addaddress(cd, iptr->val.a);
-                               M_ALD(d, REG_PV, a);
+
+                       if ((iptr->target != NULL) && (iptr->val.a == NULL)) {
+                               disp = dseg_addaddress(cd, iptr->val.a);
+
+                               codegen_addpatchref(cd, mcodeptr,
+                                                                       PATCHER_aconst,
+                                                                       (unresolved_class *) iptr->target, disp);
+
+                               if (opt_showdisassemble) {
+                                       M_NOP; M_NOP;
+                               }
+
+                               M_ALD(d, REG_PV, disp);
+
                        } else {
-                               M_INTMOVE(REG_ZERO, d);
+                               if (iptr->val.a == NULL) {
+                                       M_INTMOVE(REG_ZERO, d);
+                               } else {
+                                       disp = dseg_addaddress(cd, iptr->val.a);
+                                       M_ALD(d, REG_PV, disp);
+                               }
                        }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -670,7 +706,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 
                        var_to_reg_int(s1, src, REG_ITMP1); 
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISUB(REG_ZERO, s1, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -678,7 +714,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSUB(REG_ZERO, s1, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -686,7 +722,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_INTMOVE(s1, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -694,7 +730,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISLL_IMM(s1, 0, d );
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -702,7 +738,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSLL_IMM(s1, 56, d);
                        M_LSRA_IMM( d, 56, d);
                        store_reg_to_var_int(iptr->dst, d);
@@ -711,7 +747,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
             M_CZEXT(s1, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -719,7 +755,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSLL_IMM(s1, 48, d);
                        M_LSRA_IMM( d, 48, d);
                        store_reg_to_var_int(iptr->dst, d);
@@ -730,7 +766,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_IADD(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -739,14 +775,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.i >= -32768) && (iptr->val.i <= 32767)) {
                                M_IADD_IMM(s1, iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_IADD(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -754,7 +789,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LADD(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -763,14 +798,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.l >= -32768) && (iptr->val.l <= 32767)) {
                                M_LADD_IMM(s1, iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_LADD(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -778,7 +812,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISUB(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -787,14 +821,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.i >= -32767) && (iptr->val.i <= 32768)) {
                                M_IADD_IMM(s1, -iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_ISUB(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -802,7 +835,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSUB(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -811,14 +844,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.l >= -32767) && (iptr->val.l <= 32768)) {
                                M_LADD_IMM(s1, -iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_LSUB(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -826,7 +858,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_IMUL(s1, s2);
                        M_MFLO(d);
                        M_NOP;
@@ -838,7 +870,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        ICONST(REG_ITMP2, iptr->val.i);
                        M_IMUL(s1, REG_ITMP2);
                        M_MFLO(d);
@@ -851,7 +883,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LMUL(s1, s2);
                        M_MFLO(d);
                        M_NOP;
@@ -863,7 +895,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        LCONST(REG_ITMP2, iptr->val.l);
                        M_LMUL(s1, REG_ITMP2);
                        M_MFLO(d);
@@ -876,7 +908,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        gen_div_check(s2);
                        M_IDIV(s1, s2);
                        M_MFLO(d);
@@ -889,7 +921,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        gen_div_check(s2);
                        M_LDIV(s1, s2);
                        M_MFLO(d);
@@ -902,7 +934,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        gen_div_check(s2);
                        M_IDIV(s1, s2);
                        M_MFHI(d);
@@ -915,7 +947,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        gen_div_check(s2);
                        M_LDIV(s1, s2);
                        M_MFHI(d);
@@ -928,7 +960,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_LDIVPOW2:   /* val.i = constant                             */
                                      
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSRA_IMM(s1, 63, REG_ITMP2);
                        M_LSRL_IMM(REG_ITMP2, 64 - iptr->val.i, REG_ITMP2);
                        M_LADD(s1, REG_ITMP2, REG_ITMP2);
@@ -940,7 +972,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISLL(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -949,7 +981,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISLL_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -958,7 +990,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISRA(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -967,7 +999,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISRA_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -976,7 +1008,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISRL(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -985,7 +1017,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_ISRL_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -994,7 +1026,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSLL(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1003,7 +1035,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSLL_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1012,7 +1044,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSRA(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1021,7 +1053,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSRA_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1030,7 +1062,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSRL(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1039,7 +1071,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_LSRL_IMM(s1, iptr->val.i, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1049,7 +1081,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_AND(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1058,14 +1090,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.i >= 0) && (iptr->val.i <= 0xffff)) {
                                M_AND_IMM(s1, iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_AND(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1073,26 +1104,25 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (s1 == d) {
                                M_MOV(s1, REG_ITMP1);
                                s1 = REG_ITMP1;
-                               }
+                       }
                        if ((iptr->val.i >= 0) && (iptr->val.i <= 0xffff)) {
                                M_AND_IMM(s1, iptr->val.i, d);
                                M_BGEZ(s1, 4);
                                M_NOP;
                                M_ISUB(REG_ZERO, s1, d);
                                M_AND_IMM(d, iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_AND(s1, REG_ITMP2, d);
                                M_BGEZ(s1, 4);
                                M_NOP;
                                M_ISUB(REG_ZERO, s1, d);
                                M_AND(d, REG_ITMP2, d);
-                               }
+                       }
                        M_ISUB(REG_ZERO, d, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1101,14 +1131,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.l >= 0) && (iptr->val.l <= 0xffff)) {
                                M_AND_IMM(s1, iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_AND(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1116,26 +1145,25 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (s1 == d) {
                                M_MOV(s1, REG_ITMP1);
                                s1 = REG_ITMP1;
-                               }
+                       }
                        if ((iptr->val.l >= 0) && (iptr->val.l <= 0xffff)) {
                                M_AND_IMM(s1, iptr->val.l, d);
                                M_BGEZ(s1, 4);
                                M_NOP;
                                M_LSUB(REG_ZERO, s1, d);
                                M_AND_IMM(d, iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_AND(s1, REG_ITMP2, d);
                                M_BGEZ(s1, 4);
                                M_NOP;
                                M_LSUB(REG_ZERO, s1, d);
                                M_AND(d, REG_ITMP2, d);
-                               }
+                       }
                        M_LSUB(REG_ZERO, d, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1145,8 +1173,8 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
-                       M_OR( s1,s2, d);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                       M_OR(s1,s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1154,14 +1182,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.i >= 0) && (iptr->val.i <= 0xffff)) {
                                M_OR_IMM(s1, iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_OR(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1169,14 +1196,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.l >= 0) && (iptr->val.l <= 0xffff)) {
                                M_OR_IMM(s1, iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_OR(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1185,7 +1211,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_XOR(s1, s2, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -1194,14 +1220,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.i = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.i >= 0) && (iptr->val.i <= 0xffff)) {
                                M_XOR_IMM(s1, iptr->val.i, d);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_XOR(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1209,14 +1234,13 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                      /* val.l = constant                             */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if ((iptr->val.l >= 0) && (iptr->val.l <= 0xffff)) {
                                M_XOR_IMM(s1, iptr->val.l, d);
-                               }
-                       else {
+                       } else {
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_XOR(s1, REG_ITMP2, d);
-                               }
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1225,10 +1249,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_CMPLT(s1, s2, REG_ITMP3);
                        M_CMPLT(s2, s1, REG_ITMP1);
-                       M_LSUB (REG_ITMP1, REG_ITMP3, d);
+                       M_LSUB(REG_ITMP1, REG_ITMP3, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1239,13 +1263,12 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var = &(rd->locals[iptr->op1][TYPE_INT]);
                        if (var->flags & INMEMORY) {
                                s1 = REG_ITMP1;
-                               M_LLD(s1, REG_SP, 8 * var->regoff);
-
+                               M_LLD(s1, REG_SP, var->regoff * 8);
                        } else
                                s1 = var->regoff;
                        M_IADD_IMM(s1, iptr->val.i, s1);
                        if (var->flags & INMEMORY)
-                               M_LST(s1, REG_SP, 8 * var->regoff);
+                               M_LST(s1, REG_SP, var->regoff * 8);
                        break;
 
 
@@ -1254,7 +1277,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_FNEG(s1, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1262,7 +1285,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_DNEG(s1, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1271,7 +1294,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_FADD(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1280,7 +1303,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_DADD(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1289,7 +1312,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_FSUB(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1298,7 +1321,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_DSUB(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1307,16 +1330,16 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_FMUL(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
 
-               case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 *** val2        */
+               case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 *** val2      */
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_DMUL(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1325,7 +1348,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_FDIV(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1334,7 +1357,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_DDIV(s1, s2, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1370,7 +1393,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
                case ICMD_L2F:
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_MOVLD(s1, d);
                        M_CVTLF(d, d);
                        store_reg_to_var_flt(iptr->dst, d);
@@ -1379,16 +1402,19 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
                case ICMD_L2D:
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_MOVLD(s1, d);
                        M_CVTLD(d, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
-                       
+
+#if 0
+               /* XXX these do not work correctly */
+
                case ICMD_F2I:       /* ..., (float) value  ==> ..., (int) value      */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        M_TRUNCFI(s1, REG_FTMP1);
                        M_MOVDI(REG_FTMP1, d);
                        M_NOP;
@@ -1398,7 +1424,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_D2I:       /* ..., (double) value  ==> ..., (int) value     */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_TRUNCDI(s1, REG_FTMP1);
                        M_MOVDI(REG_FTMP1, d);
                        M_NOP;
@@ -1408,7 +1434,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_F2L:       /* ..., (float) value  ==> ..., (long) value     */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_TRUNCFL(s1, REG_FTMP1);
                        M_MOVDL(REG_FTMP1, d);
                        M_NOP;
@@ -1418,17 +1444,18 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_D2L:       /* ..., (double) value  ==> ..., (long) value    */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_TRUNCDL(s1, REG_FTMP1);
                        M_MOVDL(REG_FTMP1, d);
                        M_NOP;
                        store_reg_to_var_int(iptr->dst, d);
                        break;
+#endif
 
                case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_CVTFD(s1, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1436,7 +1463,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
 
                        var_to_reg_flt(s1, src, REG_FTMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP2);
                        M_CVTDF(s1, d);
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
@@ -1445,7 +1472,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_FCMPULEF(s1, s2);
                        M_FBT(3);
                        M_LADD_IMM(REG_ZERO, 1, d);
@@ -1461,7 +1488,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_FCMPULED(s1, s2);
                        M_FBT(3);
                        M_LADD_IMM(REG_ZERO, 1, d);
@@ -1477,7 +1504,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_FCMPOLTF(s1, s2);
                        M_FBF(3);
                        M_LSUB_IMM(REG_ZERO, 1, d);
@@ -1493,7 +1520,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_flt(s1, src->prev, REG_FTMP1);
                        var_to_reg_flt(s2, src, REG_FTMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP1);
                        M_FCMPOLTD(s1, s2);
                        M_FBF(3);
                        M_LSUB_IMM(REG_ZERO, 1, d);
@@ -1511,24 +1538,53 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        gen_nullptr_check(s1);
                        M_ILD(d, s1, OFFSET(java_arrayheader, size));
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
-               case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
+               case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_ALD(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+                       M_AADD(s2, s1, REG_ITMP3);
+                       M_BLDS(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
+                       store_reg_to_var_int(iptr->dst, d);
+                       break;
+
+               case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
+
+                       var_to_reg_int(s1, src->prev, REG_ITMP1);
+                       var_to_reg_int(s2, src, REG_ITMP2);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                       if (iptr->op1 == 0) {
+                               gen_nullptr_check(s1);
+                               gen_bound_check;
+                       }
+                       M_AADD(s2, s1, REG_ITMP3);
+                       M_AADD(s2, REG_ITMP3, REG_ITMP3);
+                       M_SLDU(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
+                       store_reg_to_var_int(iptr->dst, d);
+                       break;                  
+
+               case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
+
+                       var_to_reg_int(s1, src->prev, REG_ITMP1);
+                       var_to_reg_int(s2, src, REG_ITMP2);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                       if (iptr->op1 == 0) {
+                               gen_nullptr_check(s1);
+                               gen_bound_check;
+                       }
+                       M_AADD(s2, s1, REG_ITMP3);
+                       M_AADD(s2, REG_ITMP3, REG_ITMP3);
+                       M_SLDS(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1536,14 +1592,14 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 2, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_ILD(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
+                       M_ASLL_IMM(s2, 2, REG_ITMP3);
+                       M_AADD(REG_ITMP3, s1, REG_ITMP3);
+                       M_ILD(d, REG_ITMP3, OFFSET(java_intarray, data[0]));
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1551,14 +1607,14 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 3, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_LLD(d, REG_ITMP1, OFFSET(java_longarray, data[0]));
+                       M_ASLL_IMM(s2, 3, REG_ITMP3);
+                       M_AADD(REG_ITMP3, s1, REG_ITMP3);
+                       M_LLD(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -1566,14 +1622,14 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP1);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 2, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_FLD(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       M_ASLL_IMM(s2, 2, REG_ITMP3);
+                       M_AADD(REG_ITMP3, s1, REG_ITMP3);
+                       M_FLD(d, REG_ITMP3, OFFSET(java_floatarray, data[0]));
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
 
@@ -1581,62 +1637,61 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_FTMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_FTMP1);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 3, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_DLD(d, REG_ITMP1, OFFSET(java_doublearray, data[0]));
+                       M_ASLL_IMM(s2, 3, REG_ITMP3);
+                       M_AADD(REG_ITMP3, s1, REG_ITMP3);
+                       M_DLD(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
                        store_reg_to_var_flt(iptr->dst, d);
                        break;
 
-               case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
+               case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_AADD(s2, s1, REG_ITMP1);
-                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
-                       M_SLDU(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
+                       M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP3);
+                       M_AADD(REG_ITMP3, s1, REG_ITMP3);
+                       M_ALD(d, REG_ITMP3, OFFSET(java_objectarray, data[0]));
                        store_reg_to_var_int(iptr->dst, d);
-                       break;                  
+                       break;
 
-               case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
 
-                       var_to_reg_int(s1, src->prev, REG_ITMP1);
-                       var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+               case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
+
+                       var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
+                       var_to_reg_int(s2, src->prev, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
                        M_AADD(s2, s1, REG_ITMP1);
-                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
-                       M_SLDS(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
-                       store_reg_to_var_int(iptr->dst, d);
+                       var_to_reg_int(s3, src, REG_ITMP3);
+                       M_BST(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
                        break;
 
-               case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
+               case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
+               case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
 
-                       var_to_reg_int(s1, src->prev, REG_ITMP1);
-                       var_to_reg_int(s2, src, REG_ITMP2);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
+                       var_to_reg_int(s2, src->prev, REG_ITMP2);
                        if (iptr->op1 == 0) {
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
                        M_AADD(s2, s1, REG_ITMP1);
-                       M_BLDS(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
-                       store_reg_to_var_int(iptr->dst, d);
+                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
+                       var_to_reg_int(s3, src, REG_ITMP3);
+                       M_SST(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
                        break;
 
-
                case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
 
                        var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
@@ -1645,10 +1700,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       var_to_reg_int(s3, src, REG_ITMP3);
                        M_ASLL_IMM(s2, 2, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_IST(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
+                       var_to_reg_int(s3, src, REG_ITMP3);
+                       M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
                        break;
 
                case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1659,10 +1714,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       var_to_reg_int(s3, src, REG_ITMP3);
                        M_ASLL_IMM(s2, 3, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_LST(s3, REG_ITMP1, OFFSET(java_longarray, data[0]));
+                       var_to_reg_int(s3, src, REG_ITMP3);
+                       M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_longarray, data[0]));
                        break;
 
                case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1673,10 +1728,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       var_to_reg_flt(s3, src, REG_FTMP3);
                        M_ASLL_IMM(s2, 2, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_FST(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       var_to_reg_flt(s3, src, REG_FTMP1);
+                       M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
                        break;
 
                case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1687,28 +1742,14 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       var_to_reg_flt(s3, src, REG_FTMP3);
                        M_ASLL_IMM(s2, 3, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_DST(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
+                       var_to_reg_flt(s3, src, REG_FTMP1);
+                       M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
                        break;
 
-               case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
-               case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
-
-                       var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
-                       var_to_reg_int(s2, src->prev, REG_ITMP2);
-                       if (iptr->op1 == 0) {
-                               gen_nullptr_check(s1);
-                               gen_bound_check;
-                       }
-                       var_to_reg_int(s3, src, REG_ITMP3);
-                       M_AADD(s2, s1, REG_ITMP1);
-                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
-                       M_SST(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
-                       break;
 
-               case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
+               case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
 
                        var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
                        var_to_reg_int(s2, src->prev, REG_ITMP2);
@@ -1717,43 +1758,28 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_bound_check;
                        }
                        var_to_reg_int(s3, src, REG_ITMP3);
-                       M_AADD(s2, s1, REG_ITMP1);
-                       M_BST(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
-                       break;
-
-
-               case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
-
-                       var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
-                       var_to_reg_int(s2, src->prev, REG_ITMP2);
-/*                     if (iptr->op1 == 0) { */
-                               gen_nullptr_check(s1);
-                               gen_bound_check;
-/*                     } */
-                       var_to_reg_int(s3, src, REG_ITMP3);
 
                        M_MOV(s1, rd->argintregs[0]);
                        M_MOV(s3, rd->argintregs[1]);
-                       bte = iptr->val.a;
-                       disp = dseg_addaddress(cd, bte->fp);
+                       disp = dseg_addaddress(cd, BUILTIN_canstore);
                        M_ALD(REG_ITMP3, REG_PV, disp);
                        M_JSR(REG_RA, REG_ITMP3);
                        M_NOP;
 
                        M_BEQZ(REG_RESULT, 0);
-                       codegen_addxstorerefs(cd, mcodeptr);
+                       codegen_add_arraystoreexception_ref(cd, mcodeptr);
                        M_NOP;
 
                        var_to_reg_int(s1, src->prev->prev, REG_ITMP1);
                        var_to_reg_int(s2, src->prev, REG_ITMP2);
-                       var_to_reg_int(s3, src, REG_ITMP3);
                        M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_AST(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+                       var_to_reg_int(s3, src, REG_ITMP3);
+                       M_AST_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
                        break;
 
 
-               case ICMD_IASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_BASTORECONST:   /* ..., arrayref, index  ==> ...            */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
@@ -1761,12 +1787,12 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 2, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_IST(REG_ZERO, REG_ITMP1, OFFSET(java_intarray, data[0]));
+                       M_AADD(s2, s1, REG_ITMP1);
+                       M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray, data[0]));
                        break;
 
-               case ICMD_LASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_CASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_SASTORECONST:   /* ..., arrayref, index  ==> ...            */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
@@ -1774,12 +1800,12 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, 3, REG_ITMP2);
-                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_LST(REG_ZERO, REG_ITMP1, OFFSET(java_longarray, data[0]));
+                       M_AADD(s2, s1, REG_ITMP1);
+                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
+                       M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray, data[0]));
                        break;
 
-               case ICMD_AASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_IASTORECONST:   /* ..., arrayref, index  ==> ...            */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
@@ -1787,12 +1813,12 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
+                       M_ASLL_IMM(s2, 2, REG_ITMP2);
                        M_AADD(REG_ITMP2, s1, REG_ITMP1);
-                       M_AST(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+                       M_IST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_intarray, data[0]));
                        break;
 
-               case ICMD_BASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_LASTORECONST:   /* ..., arrayref, index  ==> ...            */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
@@ -1800,12 +1826,12 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_AADD(s2, s1, REG_ITMP1);
-                       M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray, data[0]));
+                       M_ASLL_IMM(s2, 3, REG_ITMP2);
+                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
+                       M_LST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_longarray, data[0]));
                        break;
 
-               case ICMD_CASTORECONST:   /* ..., arrayref, index  ==> ...            */
-               case ICMD_SASTORECONST:   /* ..., arrayref, index  ==> ...            */
+               case ICMD_AASTORECONST:   /* ..., arrayref, index  ==> ...            */
 
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
@@ -1813,67 +1839,66 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                gen_nullptr_check(s1);
                                gen_bound_check;
                        }
-                       M_AADD(s2, s1, REG_ITMP1);
-                       M_AADD(s2, REG_ITMP1, REG_ITMP1);
-                       M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray, data[0]));
+                       M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
+                       M_AADD(REG_ITMP2, s1, REG_ITMP1);
+                       M_AST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray, data[0]));
                        break;
 
 
                case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
                                      /* op1 = type, val.a = field address            */
 
-                       if (!iptr->val.a) {
+                       if (iptr->val.a == NULL) {
+                               disp = dseg_addaddress(cd, NULL);
+
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putstatic,
-                                                                       (unresolved_field *) iptr->target);
+                                                                       (unresolved_field *) iptr->target, disp);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
                                }
 
-                               a = 0;
-
                        } else {
                                fieldinfo *fi = iptr->val.a;
 
-                               if (!fi->class->initialized) {
+                               disp = dseg_addaddress(cd, &(fi->value));
+
+                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_clinit, fi->class);
+                                                                               PATCHER_clinit, fi->class, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
                                        }
                                }
-
-                               a = (ptrint) &(fi->value);
                        }
 
-                       a = dseg_addaddress(cd, a);
-                       M_ALD(REG_ITMP1, REG_PV, a);
+                       M_ALD(REG_ITMP1, REG_PV, disp);
                        switch (iptr->op1) {
                        case TYPE_INT:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
-                               M_ILD(d, REG_ITMP1, 0);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                               M_ILD_INTERN(d, REG_ITMP1, 0);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
                        case TYPE_LNG:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
-                               M_LLD(d, REG_ITMP1, 0);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                               M_LLD_INTERN(d, REG_ITMP1, 0);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
                        case TYPE_ADR:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
-                               M_ALD(d, REG_ITMP1, 0);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
+                               M_ALD_INTERN(d, REG_ITMP1, 0);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
                        case TYPE_FLT:
                                d = reg_of_var(rd, iptr->dst, REG_FTMP1);
-                               M_FLD(d, REG_ITMP1, 0);
+                               M_FLD_INTERN(d, REG_ITMP1, 0);
                                store_reg_to_var_flt(iptr->dst, d);
                                break;
                        case TYPE_DBL:                          
                                d = reg_of_var(rd, iptr->dst, REG_FTMP1);
-                               M_DLD(d, REG_ITMP1, 0);
+                               M_DLD_INTERN(d, REG_ITMP1, 0);
                                store_reg_to_var_flt(iptr->dst, d);
                                break;
                        }
@@ -1882,54 +1907,53 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
                                      /* op1 = type, val.a = field address            */
 
-                       if (!iptr->val.a) {
+                       if (iptr->val.a == NULL) {
+                               disp = dseg_addaddress(cd, NULL);
+
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putstatic,
-                                                                       (unresolved_field *) iptr->target);
+                                                                       (unresolved_field *) iptr->target, disp);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
                                }
 
-                               a = 0;
-
                        } else {
                                fieldinfo *fi = iptr->val.a;
 
-                               if (!fi->class->initialized) {
+                               disp = dseg_addaddress(cd, &(fi->value));
+
+                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_clinit, fi->class);
+                                                                               PATCHER_clinit, fi->class, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
                                        }
                                }
-
-                               a = (ptrint) &(fi->value);
                        }
 
-                       a = dseg_addaddress(cd, a);
-                       M_ALD(REG_ITMP1, REG_PV, a);
+                       M_ALD(REG_ITMP1, REG_PV, disp);
                        switch (iptr->op1) {
                        case TYPE_INT:
                                var_to_reg_int(s2, src, REG_ITMP2);
-                               M_IST(s2, REG_ITMP1, 0);
+                               M_IST_INTERN(s2, REG_ITMP1, 0);
                                break;
                        case TYPE_LNG:
                                var_to_reg_int(s2, src, REG_ITMP2);
-                               M_LST(s2, REG_ITMP1, 0);
+                               M_LST_INTERN(s2, REG_ITMP1, 0);
                                break;
                        case TYPE_ADR:
                                var_to_reg_int(s2, src, REG_ITMP2);
-                               M_AST(s2, REG_ITMP1, 0);
+                               M_AST_INTERN(s2, REG_ITMP1, 0);
                                break;
                        case TYPE_FLT:
                                var_to_reg_flt(s2, src, REG_FTMP2);
-                               M_FST(s2, REG_ITMP1, 0);
+                               M_FST_INTERN(s2, REG_ITMP1, 0);
                                break;
                        case TYPE_DBL:
                                var_to_reg_flt(s2, src, REG_FTMP2);
-                               M_DST(s2, REG_ITMP1, 0);
+                               M_DST_INTERN(s2, REG_ITMP1, 0);
                                break;
                        }
                        break;
@@ -1939,49 +1963,48 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                          /* op1 = type, val.a = field address (in    */
                                          /* following NOP)                           */
 
-                       if (!iptr[1].val.a) {
+                       if (iptr[1].val.a == NULL) {
+                               disp = dseg_addaddress(cd, NULL);
+
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putstatic,
-                                                                       (unresolved_field *) iptr[1].target);
+                                                                       (unresolved_field *) iptr[1].target, disp);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
                                }
 
-                               a = 0;
-
                        } else {
                                fieldinfo *fi = iptr[1].val.a;
 
-                               if (!fi->class->initialized) {
+                               disp = dseg_addaddress(cd, &(fi->value));
+
+                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_clinit, fi->class);
+                                                                               PATCHER_clinit, fi->class, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
                                        }
                                }
-
-                               a = (ptrint) &(fi->value);
                        }
 
-                       a = dseg_addaddress(cd, a);
-                       M_ALD(REG_ITMP1, REG_PV, a);
+                       M_ALD(REG_ITMP1, REG_PV, disp);
                        switch (iptr->op1) {
                        case TYPE_INT:
-                               M_IST(REG_ZERO, REG_ITMP1, 0);
+                               M_IST_INTERN(REG_ZERO, REG_ITMP1, 0);
                                break;
                        case TYPE_LNG:
-                               M_LST(REG_ZERO, REG_ITMP1, 0);
+                               M_LST_INTERN(REG_ZERO, REG_ITMP1, 0);
                                break;
                        case TYPE_ADR:
-                               M_AST(REG_ZERO, REG_ITMP1, 0);
+                               M_AST_INTERN(REG_ZERO, REG_ITMP1, 0);
                                break;
                        case TYPE_FLT:
-                               M_FST(REG_ZERO, REG_ITMP1, 0);
+                               M_FST_INTERN(REG_ZERO, REG_ITMP1, 0);
                                break;
                        case TYPE_DBL:
-                               M_DST(REG_ZERO, REG_ITMP1, 0);
+                               M_DST_INTERN(REG_ZERO, REG_ITMP1, 0);
                                break;
                        }
                        break;
@@ -1993,10 +2016,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src, REG_ITMP1);
                        gen_nullptr_check(s1);
 
-                       if (!iptr->val.a) {
+                       if (iptr->val.a == NULL) {
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putfield,
-                                                                       (unresolved_field *) iptr->target);
+                                                                       (unresolved_field *) iptr->target, 0);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
@@ -2010,17 +2033,17 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        switch (iptr->op1) {
                        case TYPE_INT:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                                M_ILD(d, s1, a);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
                        case TYPE_LNG:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                                M_LLD(d, s1, a);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
                        case TYPE_ADR:
-                               d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                               d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                                M_ALD(d, s1, a);
                                store_reg_to_var_int(iptr->dst, d);
                                break;
@@ -2035,8 +2058,6 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                store_reg_to_var_flt(iptr->dst, d);
                                break;
                        }
-                       /* XXX quick hack */
-                       M_NOP;
                        break;
 
                case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
@@ -2051,10 +2072,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                var_to_reg_flt(s2, src, REG_FTMP2);
                        }
 
-                       if (!iptr->val.a) {
+                       if (iptr->val.a == NULL) {
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putfield,
-                                                                       (unresolved_field *) iptr->target);
+                                                                       (unresolved_field *) iptr->target, 0);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
@@ -2083,8 +2104,6 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                M_DST(s2, s1, a);
                                break;
                        }
-                       /* XXX quick hack */
-                       M_NOP;
                        break;
 
                case ICMD_PUTFIELDCONST:  /* ..., objectref  ==> ...                  */
@@ -2095,10 +2114,10 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src, REG_ITMP1);
                        gen_nullptr_check(s1);
 
-                       if (!iptr[1].val.a) {
+                       if (iptr[1].val.a == NULL) {
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_get_putfield,
-                                                                       (unresolved_field *) iptr[1].target);
+                                                                       (unresolved_field *) iptr[1].target, 0);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
@@ -2127,8 +2146,6 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                M_DST(REG_ZERO, s1, a);
                                break;
                        }
-                       /* XXX quick hack */
-                       M_NOP;
                        break;
 
 
@@ -2138,8 +2155,21 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src, REG_ITMP1);
                        M_INTMOVE(s1, REG_ITMP1_XPTR);
-                       a = dseg_addaddress(cd, asm_handle_exception);
-                       M_ALD(REG_ITMP2, REG_PV, a);
+                       
+#ifdef ENABLE_VERIFIER
+                       if (iptr->val.a) {
+                               codegen_addpatchref(cd, mcodeptr,
+                                                                       PATCHER_athrow_areturn,
+                                                                       (unresolved_class *) iptr->val.a, 0);
+
+                               if (opt_showdisassemble) {
+                                       M_NOP; M_NOP;
+                               }
+                       }
+#endif /* ENABLE_VERIFIER */
+
+                       disp = dseg_addaddress(cd, asm_handle_exception);
+                       M_ALD(REG_ITMP2, REG_PV, disp);
                        M_JSR(REG_ITMP2_XPC, REG_ITMP2);
                        M_NOP;
                        M_NOP;              /* nop ensures that XPC is less than the end */
@@ -2150,7 +2180,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_GOTO:         /* ... ==> ...                                */
                                        /* op1 = target JavaVM pc                     */
                        M_BR(0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        ALIGNCODENOP;
                        break;
@@ -2158,7 +2188,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                case ICMD_JSR:          /* ... ==> ...                                */
                                        /* op1 = target JavaVM pc                     */
 
-                       dseg_addtarget(cd, BlockPtrOfPC(iptr->op1));
+                       dseg_addtarget(cd, (basicblock *) iptr->target);
                        M_ALD(REG_ITMP1, REG_PV, -(cd->dseglen));
                        M_JSR(REG_ITMP1, REG_ITMP1);        /* REG_ITMP1 = return address */
                        M_NOP;
@@ -2168,10 +2198,9 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* op1 = local variable                       */
                        var = &(rd->locals[iptr->op1][TYPE_ADR]);
                        if (var->flags & INMEMORY) {
-                               M_ALD(REG_ITMP1, REG_SP, 8 * var->regoff);
+                               M_ALD(REG_ITMP1, REG_SP, var->regoff * 8);
                                M_RET(REG_ITMP1);
-                               }
-                       else
+                       } else
                                M_RET(var->regoff);
                        M_NOP;
                        ALIGNCODENOP;
@@ -2182,7 +2211,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src, REG_ITMP1);
                        M_BEQZ(s1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2191,7 +2220,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                        var_to_reg_int(s1, src, REG_ITMP1);
                        M_BNEZ(s1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2201,12 +2230,11 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src, REG_ITMP1);
                        if (iptr->val.i == 0) {
                                M_BEQZ(s1, 0);
-                               }
-                       else {
+                       } else {
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_BEQ(s1, REG_ITMP2, 0);
-                               }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       }
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2216,18 +2244,16 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src, REG_ITMP1);
                        if (iptr->val.i == 0) {
                                M_BLTZ(s1, 0);
-                               }
-                       else {
+                       } else {
                                if ((iptr->val.i >= -32768) && (iptr->val.i <= 32767)) {
                                        M_CMPLT_IMM(s1, iptr->val.i, REG_ITMP1);
-                                       }
-                               else {
+                               } else {
                                        ICONST(REG_ITMP2, iptr->val.i);
                                        M_CMPLT(s1, REG_ITMP2, REG_ITMP1);
-                                       }
-                               M_BNEZ(REG_ITMP1, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                               M_BNEZ(REG_ITMP1, 0);
+                       }
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2249,7 +2275,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        M_BEQZ(REG_ITMP1, 0);
                                        }
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2264,7 +2290,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                ICONST(REG_ITMP2, iptr->val.i);
                                M_BNE(s1, REG_ITMP2, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2286,7 +2312,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        M_BNEZ(REG_ITMP1, 0);
                                        }
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2307,7 +2333,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        }
                                M_BEQZ(REG_ITMP1, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2322,7 +2348,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_BEQ(s1, REG_ITMP2, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2343,7 +2369,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        }
                                M_BNEZ(REG_ITMP1, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2365,7 +2391,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        M_BEQZ(REG_ITMP1, 0);
                                        }
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2380,7 +2406,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                LCONST(REG_ITMP2, iptr->val.l);
                                M_BNE(s1, REG_ITMP2, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2402,7 +2428,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        M_BNEZ(REG_ITMP1, 0);
                                        }
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2423,7 +2449,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        }
                                M_BEQZ(REG_ITMP1, 0);
                                }
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2434,7 +2460,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_BEQ(s1, s2, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2445,7 +2471,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s1, src->prev, REG_ITMP1);
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_BNE(s1, s2, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2456,7 +2482,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_CMPLT(s1, s2, REG_ITMP1);
                        M_BNEZ(REG_ITMP1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2467,7 +2493,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_CMPGT(s1, s2, REG_ITMP1);
                        M_BNEZ(REG_ITMP1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2478,7 +2504,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_CMPGT(s1, s2, REG_ITMP1);
                        M_BEQZ(REG_ITMP1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2489,7 +2515,7 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                        var_to_reg_int(s2, src, REG_ITMP2);
                        M_CMPLT(s1, s2, REG_ITMP1);
                        M_BEQZ(REG_ITMP1, 0);
-                       codegen_addreference(cd, BlockPtrOfPC(iptr->op1), mcodeptr);
+                       codegen_addreference(cd, (basicblock *) iptr->target, mcodeptr);
                        M_NOP;
                        break;
 
@@ -2503,33 +2529,32 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if (iptr[1].opc == ICMD_ELSE_ICONST) {
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPEQ(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPEQ(s1, REG_ZERO, d);
                                        M_XOR_IMM(d, 1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVEQ_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVEQ(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVEQ(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -2537,33 +2562,32 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if (iptr[1].opc == ICMD_ELSE_ICONST) {
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPEQ(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPEQ(s1, REG_ZERO, d);
                                        M_XOR_IMM(d, 1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVNE_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVNE(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVNE(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -2571,32 +2595,31 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if ((iptr[1].opc == ICMD_ELSE_ICONST)) {
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPLT(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPLE(REG_ZERO, s1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVLT_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVLT(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVLT(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -2604,32 +2627,31 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if ((iptr[1].opc == ICMD_ELSE_ICONST)) {
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPLE(REG_ZERO, s1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPLT(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVGE_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVGE(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVGE(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -2637,32 +2659,31 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if ((iptr[1].opc == ICMD_ELSE_ICONST)) {
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPLT(REG_ZERO, s1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPLE(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVGT_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVGT(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVGT(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 
@@ -2670,32 +2691,31 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                        /* val.i = constant                           */
 
                        var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
+                       d = reg_of_var(rd, iptr->dst, REG_ITMP2);
                        s3 = iptr->val.i;
                        if ((iptr[1].opc == ICMD_ELSE_ICONST)) {
                                if ((s3 == 1) && (iptr[1].val.i == 0)) {
                                        M_CMPLE(s1, REG_ZERO, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if ((s3 == 0) && (iptr[1].val.i == 1)) {
                                        M_CMPLT(REG_ZERO, s1, d);
                                        store_reg_to_var_int(iptr->dst, d);
                                        break;
-                                       }
+                               }
                                if (s1 == d) {
                                        M_MOV(s1, REG_ITMP1);
                                        s1 = REG_ITMP1;
-                                       }
-                               ICONST(d, iptr[1].val.i);
                                }
+                               ICONST(d, iptr[1].val.i);
+                       }
                        if ((s3 >= 0) && (s3 <= 255)) {
                                M_CMOVLE_IMM(s1, s3, d);
-                               }
-                       else {
-                               ICONST(REG_ITMP2, s3);
-                               M_CMOVLE(s1, REG_ITMP2, d);
-                               }
+                       } else {
+                               ICONST(REG_ITMP3, s3);
+                               M_CMOVLE(s1, REG_ITMP3, d);
+                       }
                        store_reg_to_var_int(iptr->dst, d);
                        break;
 #endif
@@ -2703,24 +2723,27 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
 
                case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
                case ICMD_LRETURN:
-               case ICMD_ARETURN:
+
                        var_to_reg_int(s1, src, REG_RESULT);
                        M_INTMOVE(s1, REG_RESULT);
+                       goto nowperformreturn;
 
-#if defined(USE_THREADS)
-                       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
-                               s4 disp;
-                               a = dseg_addaddress(cd, (void *) builtin_monitorexit);
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                               M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
-                               M_JSR(REG_RA, REG_ITMP3);
-                               M_LST(REG_RESULT, REG_SP, rd->memuse * 8);        /* delay slot */
+               case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
+
+                       var_to_reg_int(s1, src, REG_RESULT);
+                       M_INTMOVE(s1, REG_RESULT);
+
+#ifdef ENABLE_VERIFIER
+                       if (iptr->val.a) {
+                               codegen_addpatchref(cd, mcodeptr,
+                                                                       PATCHER_athrow_areturn,
+                                                                       (unresolved_class *) iptr->val.a, 0);
 
-                               disp = -(s4) ((u1 *) mcodeptr - cd->mcodebase);
-                               M_LDA(REG_PV, REG_RA, disp);
-                               M_LLD(REG_RESULT, REG_SP, rd->memuse * 8);
+                               if (opt_showdisassemble) {
+                                       M_NOP; M_NOP;
+                               }
                        }
-#endif
+#endif /* ENABLE_VERIFIER */
                        goto nowperformreturn;
 
            case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
@@ -2730,88 +2753,120 @@ void codegen(methodinfo *m, codegendata *cd, registerdata *rd)
                                int t = ((iptr->opc == ICMD_FRETURN) ? TYPE_FLT : TYPE_DBL);
                                M_TFLTMOVE(t, s1, REG_FRESULT);
                        }
-
-#if defined(USE_THREADS)
-                       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
-                               s4 disp;
-                               a = dseg_addaddress(cd, (void *) builtin_monitorexit);
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                               M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8); 
-                               M_JSR(REG_RA, REG_ITMP3);
-                               M_DST(REG_FRESULT, REG_SP, rd->memuse * 8);       /* delay slot */
-
-                               disp = -(s4) ((u1 *) mcodeptr - cd->mcodebase);
-                               M_LDA(REG_PV, REG_RA, disp);
-                               M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8);
-                       }
-#endif
                        goto nowperformreturn;
 
                case ICMD_RETURN:      /* ...  ==> ...                                */
 
-#if defined(USE_THREADS)
-                       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
-                               s4 disp;
-                               a = dseg_addaddress(cd, (void *) builtin_monitorexit);
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                               M_JSR(REG_RA, REG_ITMP3);
-                               M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8); /* delay slot */
-                               disp = -(s4) ((u1 *) mcodeptr - cd->mcodebase);
-                               M_LDA(REG_PV, REG_RA, disp);
-                       }
-#endif
-
 nowperformreturn:
                        {
                        s4 i, p;
                        
                        p = parentargs_base;
                        
+                       /* call trace function */
+
+                       if (opt_verbosecall) {
+                               M_LDA(REG_SP, REG_SP, -3 * 8);
+                               M_LST(REG_RA, REG_SP, 0 * 8);
+                               M_LST(REG_RESULT, REG_SP, 1 * 8);
+                               M_DST(REG_FRESULT, REG_SP, 2 * 8);
+
+                               disp = dseg_addaddress(cd, m);
+                               M_ALD(rd->argintregs[0], REG_PV, disp);
+                               M_MOV(REG_RESULT, rd->argintregs[1]);
+                               M_FLTMOVE(REG_FRESULT, rd->argfltregs[2]);
+                               M_FMOV(REG_FRESULT, rd->argfltregs[3]);
+
+                               disp = dseg_addaddress(cd, (void *) builtin_displaymethodstop);
+                               M_ALD(REG_ITMP3, REG_PV, disp);
+                               M_JSR(REG_RA, REG_ITMP3);
+                               M_NOP;
+
+                               M_DLD(REG_FRESULT, REG_SP, 2 * 8);
+                               M_LLD(REG_RESULT, REG_SP, 1 * 8);
+                               M_LLD(REG_RA, REG_SP, 0 * 8);
+                               M_LDA(REG_SP, REG_SP, 3 * 8);
+                       }
+
+#if defined(USE_THREADS)
+                       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+                               disp = dseg_addaddress(cd, (void *) builtin_monitorexit);
+                               M_ALD(REG_ITMP3, REG_PV, disp);
+
+                               /* we need to save the proper return value */
+
+                               switch (iptr->opc) {
+                               case ICMD_IRETURN:
+                               case ICMD_ARETURN:
+                               case ICMD_LRETURN:
+                                       M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
+                                       M_JSR(REG_RA, REG_ITMP3);
+                                       M_LST(REG_RESULT, REG_SP, rd->memuse * 8);  /* delay slot */
+                                       break;
+                               case ICMD_FRETURN:
+                               case ICMD_DRETURN:
+                                       M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
+                                       M_JSR(REG_RA, REG_ITMP3);
+                                       M_DST(REG_FRESULT, REG_SP, rd->memuse * 8); /* delay slot */
+                                       break;
+                               case ICMD_RETURN:
+                                       M_JSR(REG_RA, REG_ITMP3);
+                                       M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8); /* delay*/
+                                       break;
+                               }
+
+                               /* and now restore the proper return value */
+
+                               switch (iptr->opc) {
+                               case ICMD_IRETURN:
+                               case ICMD_ARETURN:
+                               case ICMD_LRETURN:
+                                       M_LLD(REG_RESULT, REG_SP, rd->memuse * 8);
+                                       break;
+                               case ICMD_FRETURN:
+                               case ICMD_DRETURN:
+                                       M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8);
+                                       break;
+                               }
+                       }
+#endif
+
                        /* restore return address                                         */
 
                        if (!m->isleafmethod) {
-                               p--; M_LLD(REG_RA, REG_SP, 8 * p);
+                               p--; M_ALD(REG_RA, REG_SP, p * 8);
                        }
 
                        /* restore saved registers                                        */
 
                        for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
-                               p--; M_LLD(rd->savintregs[i], REG_SP, 8 * p);
+                               p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
                        }
                        for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
-                               p--; M_DLD(rd->savfltregs[i], REG_SP, 8 * p);
+                               p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
                        }
 
-                       /* call trace function */
+                       /* deallocate stack and return                                    */
 
-                       if (runverbose) {
-                               M_LDA (REG_SP, REG_SP, -24);
-                               M_LST(REG_RA, REG_SP, 0);
-                               M_LST(REG_RESULT, REG_SP, 8);
-                               M_DST(REG_FRESULT, REG_SP,16);
-                               a = dseg_addaddress(cd, m);
-                               M_ALD(rd->argintregs[0], REG_PV, a);
-                               M_MOV(REG_RESULT, rd->argintregs[1]);
-                               M_FLTMOVE(REG_FRESULT, rd->argfltregs[2]);
-                               M_FMOV(REG_FRESULT, rd->argfltregs[3]);
-                               a = dseg_addaddress(cd, (void *) builtin_displaymethodstop);
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                               M_JSR (REG_RA, REG_ITMP3);
-                               M_NOP;
-                               M_DLD(REG_FRESULT, REG_SP,16);
-                               M_LLD(REG_RESULT, REG_SP, 8);
-                               M_LLD(REG_RA, REG_SP, 0);
-                               M_LDA (REG_SP, REG_SP, 24);
-                       }
-
-                       M_RET(REG_RA);
+                       if (parentargs_base) {
+                               s4 lo, hi;
 
-                       /* deallocate stack                                               */
+                               disp = parentargs_base * 8;
+                               lo = (short) (disp);
+                               hi = (short) (((disp) - lo) >> 16);
 
-                       if (parentargs_base) {
-                               M_LDA(REG_SP, REG_SP, parentargs_base * 8);
+                               if (hi == 0) {
+                                       M_RET(REG_RA);
+                                       M_LADD_IMM(REG_SP, lo, REG_SP);             /* delay slot */
+                               } else {
+                                       M_LUI(REG_ITMP3,hi);
+                                       M_LADD_IMM(REG_ITMP3,lo,REG_ITMP3);
+                                       M_RET(REG_RA);
+                                       M_LADD(REG_ITMP3,REG_SP,REG_SP);            /* delay slot */
+                               }
 
                        } else {
+                               M_RET(REG_RA);
                                M_NOP;
                        }
 
@@ -2921,15 +2976,15 @@ nowperformreturn:
 
                        lm = iptr->val.a;
 
-                       if (lm)
-                               md = lm->parseddesc;
-                       else {
+                       if (lm == NULL) {
                                unresolved_method *um = iptr->target;
                                md = um->methodref->parseddesc.md;
+                       } else {
+                               md = lm->parseddesc;
                        }
 
 gen_method:
-                       s3 = iptr->op1;
+                       s3 = md->paramcount;
 
                        MCODECHECK((s3 << 1) + 64);
 
@@ -2962,63 +3017,65 @@ gen_method:
 
                        switch (iptr->opc) {
                        case ICMD_BUILTIN:
-                               if (iptr->target) {
-                                       codegen_addpatchref(cd, mcodeptr, bte->fp, iptr->target);
-
-                                       if (opt_showdisassemble) {
-                                               M_NOP; M_NOP;
-                                       }
-
-                                       a = 0;
-
-                               } else {
-                                       a = (ptrint) bte->fp;
-                               }
-
-                               a = dseg_addaddress(cd, a);
+                               disp = dseg_addaddress(cd, bte->fp);
                                d = md->returntype.type;
 
-                               M_ALD(REG_ITMP3, REG_PV, a);     /* built-in-function pointer */
+                               M_ALD(REG_ITMP3, REG_PV, disp);  /* built-in-function pointer */
                                M_JSR(REG_RA, REG_ITMP3);
                                M_NOP;
-                               goto afteractualcall;
+                               disp = (s4) ((u1 *) mcodeptr - cd->mcodebase);
+                               M_LDA(REG_PV, REG_RA, -disp);
+
+                               /* if op1 == true, we need to check for an exception */
+
+                               if (iptr->op1 == true) {
+                                       M_BEQZ(REG_RESULT, 0);
+                                       codegen_add_fillinstacktrace_ref(cd, mcodeptr);
+                                       M_NOP;
+                               }
+                               break;
 
                        case ICMD_INVOKESPECIAL:
-                               gen_nullptr_check(rd->argintregs[0]);
-                               M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
+                               M_BEQZ(rd->argintregs[0], 0);
+                               codegen_add_nullpointerexception_ref(cd, mcodeptr);
+                               M_NOP;
                                /* fall through */
 
                        case ICMD_INVOKESTATIC:
-                               if (!lm) {
+                               if (lm == NULL) {
                                        unresolved_method *um = iptr->target;
 
+                                       disp = dseg_addaddress(cd, NULL);
+
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_invokestatic_special, um);
+                                                                               PATCHER_invokestatic_special, um, disp);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
                                        }
 
-                                       a = 0;
                                        d = um->methodref->parseddesc.md->returntype.type;
 
                                } else {
-                                       a = (ptrint) lm->stubroutine;
+                                       disp = dseg_addaddress(cd, lm->stubroutine);
                                        d = lm->parseddesc->returntype.type;
                                }
 
-                               a = dseg_addaddress(cd, a);
-                               M_ALD(REG_PV, REG_PV, a);             /* method pointer in pv */
+                               M_ALD(REG_PV, REG_PV, disp);          /* method pointer in pv */
+                               M_JSR(REG_RA, REG_PV);
+                               M_NOP;
+                               disp = (s4) ((u1 *) mcodeptr - cd->mcodebase);
+                               M_LDA(REG_PV, REG_RA, -disp);
                                break;
 
                        case ICMD_INVOKEVIRTUAL:
                                gen_nullptr_check(rd->argintregs[0]);
 
-                               if (!lm) {
+                               if (lm == NULL) {
                                        unresolved_method *um = iptr->target;
 
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_invokevirtual, um);
+                                                                               PATCHER_invokevirtual, um, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
@@ -3036,16 +3093,20 @@ gen_method:
                                M_ALD(REG_METHODPTR, rd->argintregs[0],
                                          OFFSET(java_objectheader, vftbl));
                                M_ALD(REG_PV, REG_METHODPTR, s1);
+                               M_JSR(REG_RA, REG_PV);
+                               M_NOP;
+                               disp = (s4) ((u1 *) mcodeptr - cd->mcodebase);
+                               M_LDA(REG_PV, REG_RA, -disp);
                                break;
 
                        case ICMD_INVOKEINTERFACE:
                                gen_nullptr_check(rd->argintregs[0]);
 
-                               if (!lm) {
+                               if (lm == NULL) {
                                        unresolved_method *um = iptr->target;
 
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_invokeinterface, um);
+                                                                               PATCHER_invokeinterface, um, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
@@ -3068,26 +3129,13 @@ gen_method:
                                          OFFSET(java_objectheader, vftbl));
                                M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
                                M_ALD(REG_PV, REG_METHODPTR, s2);
+                               M_JSR(REG_RA, REG_PV);
+                               M_NOP;
+                               disp = (s4) ((u1 *) mcodeptr - cd->mcodebase);
+                               M_LDA(REG_PV, REG_RA, -disp);
                                break;
                        }
 
-                       M_JSR(REG_RA, REG_PV);
-                       M_NOP;
-
-                       /* recompute pv */
-
-afteractualcall:
-
-                       s1 = (s4) ((u1 *) mcodeptr - cd->mcodebase);
-                       if (s1 <= 32768) M_LDA(REG_PV, REG_RA, -s1);
-                       else {
-                               s4 ml = -s1, mh = 0;
-                               while (ml < -32768) { ml += 65536; mh--; }
-                               M_LUI(REG_PV, mh);
-                               M_IADD_IMM(REG_PV, ml, REG_PV);
-                               M_LADD(REG_PV, REG_RA, REG_PV);
-                       }
-
                        /* d contains return type */
 
                        if (d != TYPE_VOID) {
@@ -3121,182 +3169,180 @@ afteractualcall:
                         *         super->vftbl->diffvall));
                         */
 
-                       {
-                       classinfo *super;
-                       vftbl_t   *supervftbl;
-                       s4         superindex;
+                       if (iptr->op1 == 1) {
+                               classinfo *super;
+                               vftbl_t   *supervftbl;
+                               s4         superindex;
 
-                       super = (classinfo *) iptr->val.a;
+                               super = (classinfo *) iptr->val.a;
 
-                       if (!super) {
-                               superindex = 0;
-                               supervftbl = NULL;
+                               if (!super) {
+                                       superindex = 0;
+                                       supervftbl = NULL;
 
-                       } else {
-                               superindex = super->index;
-                               supervftbl = super->vftbl;
-                       }
+                               } else {
+                                       superindex = super->index;
+                                       supervftbl = super->vftbl;
+                               }
                        
 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
-                       codegen_threadcritrestart(cd, (u1 *) mcodeptr - cd->mcodebase);
+                               codegen_threadcritrestart(cd, (u1 *) mcodeptr - cd->mcodebase);
 #endif
 
-                       var_to_reg_int(s1, src, REG_ITMP1);
-
-                       /* calculate interface checkcast code size */
-
-                       s2 = 8;
-                       if (!super)
-                               s2 += (opt_showdisassemble ? 2 : 0);
-
-                       /* calculate class checkcast code size */
-
-                       s3 = 10 /* 10 + (s1 == REG_ITMP1) */;
-                       if (!super)
-                               s3 += (opt_showdisassemble ? 2 : 0);
-
-                       /* if class is not resolved, check which code to call */
+                               var_to_reg_int(s1, src, REG_ITMP1);
 
-                       if (!super) {
-                               M_BEQZ(s1, 5 + (opt_showdisassemble ? 2 : 0) + s2 + 2 + s3);
-                               M_NOP;
+                               /* calculate interface checkcast code size */
 
-                               codegen_addpatchref(cd, mcodeptr,
-                                                                       PATCHER_checkcast_instanceof_flags,
-                                                                       (constant_classref *) iptr->target);
+                               s2 = 8;
+                               if (!super)
+                                       s2 += (opt_showdisassemble ? 2 : 0);
 
-                               if (opt_showdisassemble) {
-                                       M_NOP; M_NOP;
-                               }
+                               /* calculate class checkcast code size */
 
-                               a = dseg_adds4(cd, 0);                        /* super->flags */
-                               M_ILD(REG_ITMP2, REG_PV, a);
-                               M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
-                               M_BEQZ(REG_ITMP2, 1 + s2 + 2);
-                               M_NOP;
-                       }
+                               s3 = 10 /* 10 + (s1 == REG_ITMP1) */;
+                               if (!super)
+                                       s3 += (opt_showdisassemble ? 2 : 0);
 
-                       /* interface checkcast code */
+                               /* if class is not resolved, check which code to call */
 
-                       if (!super || super->flags & ACC_INTERFACE) {
-                               if (super) {
-                                       M_BEQZ(s1, 1 + s2);
+                               if (!super) {
+                                       M_BEQZ(s1, 5 + (opt_showdisassemble ? 2 : 0) + s2 + 2 + s3);
                                        M_NOP;
 
-                               } else {
+                                       disp = dseg_adds4(cd, 0);                 /* super->flags */
+
                                        codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_checkcast_instanceof_interface,
-                                                                               (constant_classref *) iptr->target);
+                                                                               PATCHER_checkcast_instanceof_flags,
+                                                                               (constant_classref *) iptr->target,
+                                                                               disp);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
                                        }
+
+                                       /* XXX TWISTI M_ILD can be 2 instructions long (jump offset) */
+                                       M_ILD(REG_ITMP2, REG_PV, disp);
+                                       M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
+                                       M_BEQZ(REG_ITMP2, 1 + s2 + 2);
+                                       M_NOP;
                                }
 
-                               M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
-                               M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
-                               M_IADD_IMM(REG_ITMP3, -superindex, REG_ITMP3);
-                               M_BLEZ(REG_ITMP3, 0);
-                               codegen_addxcastrefs(cd, mcodeptr);
-                               M_NOP;
-                               M_ALD(REG_ITMP3, REG_ITMP2,
-                                         OFFSET(vftbl_t, interfacetable[0]) -
-                                         superindex * sizeof(methodptr*));
-                               M_BEQZ(REG_ITMP3, 0);
-                               codegen_addxcastrefs(cd, mcodeptr);
-                               M_NOP;
+                               /* interface checkcast code */
 
-                               if (!super) {
-                                       M_BR(1 + s3);
+                               if (!super || super->flags & ACC_INTERFACE) {
+                                       if (super) {
+                                               M_BEQZ(s1, 1 + s2);
+                                               M_NOP;
+
+                                       } else {
+                                               codegen_addpatchref(cd, mcodeptr,
+                                                                                       PATCHER_checkcast_instanceof_interface,
+                                                                                       (constant_classref *) iptr->target,
+                                                                                       0);
+
+                                               if (opt_showdisassemble) {
+                                                       M_NOP; M_NOP;
+                                               }
+                                       }
+
+                                       M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+                                       M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
+                                       M_IADD_IMM(REG_ITMP3, -superindex, REG_ITMP3);
+                                       M_BLEZ(REG_ITMP3, 0);
+                                       codegen_add_classcastexception_ref(cd, mcodeptr);
                                        M_NOP;
+                                       M_ALD(REG_ITMP3, REG_ITMP2,
+                                                 OFFSET(vftbl_t, interfacetable[0]) -
+                                                 superindex * sizeof(methodptr*));
+                                       M_BEQZ(REG_ITMP3, 0);
+                                       codegen_add_classcastexception_ref(cd, mcodeptr);
+                                       M_NOP;
+
+                                       if (!super) {
+                                               M_BR(1 + s3);
+                                               M_NOP;
+                                       }
                                }
-                       }
 
-                       /* class checkcast code */
+                               /* class checkcast code */
 
-                       if (!super || !(super->flags & ACC_INTERFACE)) {
-                               if (super) {
-                                       M_BEQZ(s1, 1 + s3);
-                                       M_NOP;
+                               if (!super || !(super->flags & ACC_INTERFACE)) {
+                                       disp = dseg_addaddress(cd, (void *) supervftbl);
 
-                               } else {
-                                       codegen_addpatchref(cd, mcodeptr,
-                                                                               PATCHER_checkcast_instanceof_class,
-                                                                               (constant_classref *) iptr->target);
+                                       if (super) {
+                                               M_BEQZ(s1, 1 + s3);
+                                               M_NOP;
 
-                                       if (opt_showdisassemble) {
-                                               M_NOP; M_NOP;
+                                       } else {
+                                               codegen_addpatchref(cd, mcodeptr,
+                                                                                       PATCHER_checkcast_instanceof_class,
+                                                                                       (constant_classref *) iptr->target,
+                                                                                       disp);
+
+                                               if (opt_showdisassemble) {
+                                                       M_NOP; M_NOP;
+                                               }
                                        }
-                               }
 
-                               M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
-                               a = dseg_addaddress(cd, (void *) supervftbl);
-                               M_ALD(REG_ITMP3, REG_PV, a);
+                                       M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+                                       M_ALD(REG_ITMP3, REG_PV, disp);
 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
-                               codegen_threadcritstart(cd, (u1 *) mcodeptr - cd->mcodebase);
+                                       codegen_threadcritstart(cd, (u1 *) mcodeptr - cd->mcodebase);
 #endif
-                               M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
-/*                             if (s1 != REG_ITMP1) { */
-/*                                     M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, baseval)); */
-/*                                     M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval)); */
-/* #if defined(USE_THREADS) && defined(NATIVE_THREADS) */
-/*                                     codegen_threadcritstop(cd, (u1 *) mcodeptr - cd->mcodebase); */
-/* #endif */
-/*                                     M_ISUB(REG_ITMP2, REG_ITMP1, REG_ITMP2); */
-/*                             } else { */
+                                       M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
+                                       /*                              if (s1 != REG_ITMP1) { */
+                                       /*                                      M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, baseval)); */
+                                       /*                                      M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval)); */
+                                       /* #if defined(USE_THREADS) && defined(NATIVE_THREADS) */
+                                       /*                                      codegen_threadcritstop(cd, (u1 *) mcodeptr - cd->mcodebase); */
+                                       /* #endif */
+                                       /*                                      M_ISUB(REG_ITMP2, REG_ITMP1, REG_ITMP2); */
+                                       /*                              } else { */
                                        M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
                                        M_ISUB(REG_ITMP2, REG_ITMP3, REG_ITMP2); 
-                                       M_ALD(REG_ITMP3, REG_PV, a);
+                                       M_ALD(REG_ITMP3, REG_PV, disp);
                                        M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
                                        codegen_threadcritstop(cd, (u1 *) mcodeptr - cd->mcodebase);
 #endif
-/*                             } */
-                               M_CMPULT(REG_ITMP3, REG_ITMP2, REG_ITMP3);
-                               M_BNEZ(REG_ITMP3, 0);
-                               codegen_addxcastrefs(cd, mcodeptr);
-                               M_NOP;
-                       }
-                       d = reg_of_var(rd, iptr->dst, REG_ITMP3);
-                       M_INTMOVE(s1, d);
-                       store_reg_to_var_int(iptr->dst, d);
-                       }
-                       break;
+                                       /*                              } */
+                                       M_CMPULT(REG_ITMP3, REG_ITMP2, REG_ITMP3);
+                                       M_BNEZ(REG_ITMP3, 0);
+                                       codegen_add_classcastexception_ref(cd, mcodeptr);
+                                       M_NOP;
+                               }
+                               d = reg_of_var(rd, iptr->dst, s1);
 
-               case ICMD_ARRAYCHECKCAST: /* ..., objectref ==> ..., objectref        */
-                                         /* op1: 1... resolved, 0... not resolved    */
+                       } else {
+                               var_to_reg_int(s1, src, rd->argintregs[0]);
+                               M_INTMOVE(s1, rd->argintregs[0]);
 
-                       var_to_reg_int(s1, src, rd->argintregs[0]);
-                       M_INTMOVE(s1, rd->argintregs[0]);
+                               disp = dseg_addaddress(cd, iptr->val.a);
 
-                       bte = iptr->val.a;
-
-                       if (!iptr->op1) {
-                               codegen_addpatchref(cd, mcodeptr, bte->fp, iptr->target);
+                               if (iptr->val.a == NULL) {
+                                       codegen_addpatchref(cd, mcodeptr,
+                                                                               PATCHER_builtin_arraycheckcast,
+                                                                               (constant_classref *) iptr->target,
+                                                                               disp);
 
-                               if (opt_showdisassemble) {
-                                       M_NOP; M_NOP;
+                                       if (opt_showdisassemble) {
+                                               M_NOP; M_NOP;
+                                       }
                                }
 
-                               a = 0;
-
-                       } else {
-                               a = (ptrint) bte->fp;
-                       }
-
-                       disp = dseg_addaddress(cd, iptr->target);
-                       M_ALD(rd->argintregs[1], REG_PV, disp);
-                       disp = dseg_addaddress(cd, a);
-                       M_ALD(REG_ITMP3, REG_PV, disp);
-                       M_JSR(REG_RA, REG_ITMP3);
-                       M_NOP;
+                               M_ALD(rd->argintregs[1], REG_PV, disp);
+                               disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
+                               M_ALD(REG_ITMP3, REG_PV, disp);
+                               M_JSR(REG_RA, REG_ITMP3);
+                               M_NOP;
 
-                       M_BEQZ(REG_RESULT, 0);
-                       codegen_addxcastrefs(cd, mcodeptr);
-                       M_NOP;
+                               M_BEQZ(REG_RESULT, 0);
+                               codegen_add_classcastexception_ref(cd, mcodeptr);
+                               M_NOP;
 
-                       var_to_reg_int(s1, src, REG_ITMP1);
-                       d = reg_of_var(rd, iptr->dst, s1);
+                               var_to_reg_int(s1, src, REG_ITMP1);
+                               d = reg_of_var(rd, iptr->dst, s1);
+                       }
                        M_INTMOVE(s1, d);
                        store_reg_to_var_int(iptr->dst, d);
                        break;
@@ -3365,16 +3411,18 @@ afteractualcall:
                                M_BEQZ(s1, 5 + (opt_showdisassemble ? 2 : 0) + s2 + 2 + s3);
                                M_NOP;
 
+                               disp = dseg_adds4(cd, 0);                     /* super->flags */
+
                                codegen_addpatchref(cd, mcodeptr,
                                                                        PATCHER_checkcast_instanceof_flags,
-                                                                       (constant_classref *) iptr->target);
+                                                                       (constant_classref *) iptr->target, disp);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
                                }
 
-                               a = dseg_adds4(cd, 0);                        /* super->flags */
-                               M_ILD(REG_ITMP3, REG_PV, a);
+                               /* XXX TWISTI M_ILD can be 2 instructions long (jump offset) */
+                               M_ILD(REG_ITMP3, REG_PV, disp);
                                M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
                                M_BEQZ(REG_ITMP3, 1 + s2 + 2);
                                M_NOP;
@@ -3390,7 +3438,7 @@ afteractualcall:
                                } else {
                                        codegen_addpatchref(cd, mcodeptr,
                                                                                PATCHER_checkcast_instanceof_interface,
-                                                                               (constant_classref *) iptr->target);
+                                                                               (constant_classref *) iptr->target, 0);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
@@ -3416,6 +3464,8 @@ afteractualcall:
                        /* class instanceof code */
 
                        if (!super || !(super->flags & ACC_INTERFACE)) {
+                               disp = dseg_addaddress(cd, supervftbl);
+
                                if (super) {
                                        M_BEQZ(s1, 1 + s3);
                                        M_NOP;
@@ -3423,7 +3473,8 @@ afteractualcall:
                                } else {
                                        codegen_addpatchref(cd, mcodeptr,
                                                                                PATCHER_checkcast_instanceof_class,
-                                                                               (constant_classref *) iptr->target);
+                                                                               (constant_classref *) iptr->target,
+                                                                               disp);
 
                                        if (opt_showdisassemble) {
                                                M_NOP; M_NOP;
@@ -3431,8 +3482,7 @@ afteractualcall:
                                }
 
                                M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
-                               a = dseg_addaddress(cd, supervftbl);
-                               M_ALD(REG_ITMP2, REG_PV, a);
+                               M_ALD(REG_ITMP2, REG_PV, disp);
 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
                                codegen_threadcritstart(cd, (u1 *) mcodeptr - cd->mcodebase);
 #endif
@@ -3450,88 +3500,71 @@ afteractualcall:
                        }
                        break;
 
-               case ICMD_CHECKASIZE:  /* ..., size ==> ..., size                     */
-
-                       var_to_reg_int(s1, src, REG_ITMP1);
-                       M_BLTZ(s1, 0);
-                       codegen_addxcheckarefs(cd, mcodeptr);
-                       M_NOP;
-                       break;
-
-               case ICMD_CHECKEXCEPTION:  /* ... ==> ...                             */
-
-                       M_BEQZ(REG_RESULT, 0);
-                       codegen_addxexceptionrefs(cd, mcodeptr);
-                       M_NOP;
-                       break;
-
                case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
-                                     /* op1 = dimension, val.a = array descriptor    */
+                                     /* op1 = dimension, val.a = class               */
 
                        /* check for negative sizes and copy sizes to stack if necessary  */
 
                        MCODECHECK((iptr->op1 << 1) + 64);
 
                        for (s1 = iptr->op1; --s1 >= 0; src = src->prev) {
-                               var_to_reg_int(s2, src, REG_ITMP1);
-                               M_BLTZ(s2, 0);
-                               codegen_addxcheckarefs(cd, mcodeptr);
-                               M_NOP;
-
                                /* copy SAVEDVAR sizes to stack */
 
                                if (src->varkind != ARGVAR) {
+                                       var_to_reg_int(s2, src, REG_ITMP1);
                                        M_LST(s2, REG_SP, s1 * 8);
                                }
                        }
 
+                       /* a0 = dimension count */
+
+                       ICONST(rd->argintregs[0], iptr->op1);
+
                        /* is patcher function set? */
 
-                       if (iptr->target) {
+                       if (iptr->val.a == NULL) {
+                               disp = dseg_addaddress(cd, NULL);
+
                                codegen_addpatchref(cd, mcodeptr,
-                                                                       (functionptr) iptr->target, iptr->val.a);
+                                                                       PATCHER_builtin_multianewarray,
+                                                                       (constant_classref *) iptr->target,
+                                                                       disp);
 
                                if (opt_showdisassemble) {
                                        M_NOP; M_NOP;
                                }
 
-                               a = 0;
-
                        } else {
-                               a = (ptrint) iptr->val.a;
+                               disp = dseg_addaddress(cd, iptr->val.a);
                        }
 
-                       /* a0 = dimension count */
-
-                       ICONST(rd->argintregs[0], iptr->op1);
-
                        /* a1 = arraydescriptor */
 
-                       a = dseg_addaddress(cd, a);
-                       M_ALD(rd->argintregs[1], REG_PV, a);
+                       M_ALD(rd->argintregs[1], REG_PV, disp);
 
                        /* a2 = pointer to dimensions = stack pointer */
 
                        M_INTMOVE(REG_SP, rd->argintregs[2]);
 
-                       a = dseg_addaddress(cd, BUILTIN_multianewarray);
-                       M_ALD(REG_ITMP3, REG_PV, a);
+                       disp = dseg_addaddress(cd, BUILTIN_multianewarray);
+                       M_ALD(REG_ITMP3, REG_PV, disp);
                        M_JSR(REG_RA, REG_ITMP3);
                        M_NOP;
-                       s1 = (s4)((u1 *) mcodeptr - cd->mcodebase);
-                       if (s1 <= 32768)
-                               M_LDA(REG_PV, REG_RA, -s1);
-                       else {
-                               assert(0);
-                       }
-                       s1 = reg_of_var(rd, iptr->dst, REG_RESULT);
-                       M_INTMOVE(REG_RESULT, s1);
-                       store_reg_to_var_int(iptr->dst, s1);
+
+                       /* check for exception before result assignment */
+
+                       M_BEQZ(REG_RESULT, 0);
+                       codegen_add_fillinstacktrace_ref(cd, mcodeptr);
+                       M_NOP;
+
+                       d = reg_of_var(rd, iptr->dst, REG_RESULT);
+                       M_INTMOVE(REG_RESULT, d);
+                       store_reg_to_var_int(iptr->dst, d);
                        break;
 
                default:
-                       throw_cacao_exception_exit(string_java_lang_InternalError,
-                                                                          "Unknown ICMD %d", iptr->opc);
+                       *exceptionptr = new_internalerror("Unknown ICMD %d", iptr->opc);
+                       return false;
        } /* switch */
                
        } /* for instruction */
@@ -3541,7 +3574,7 @@ afteractualcall:
        src = bptr->outstack;
        len = bptr->outdepth;
        MCODECHECK(64+len);
-#ifdef LSRA
+#if defined(ENABLE_LSRA)
        if (!opt_lsra) 
 #endif
        while (src) {
@@ -3569,11 +3602,24 @@ afteractualcall:
                }
                src = src->prev;
        }
+
+       /* At the end of a basic block we may have to append some nops,
+          because the patcher stub calling code might be longer than the
+          actual instruction. So codepatching does not change the
+          following block unintentionally. */
+
+       if ((u1 *) mcodeptr < cd->lastmcodeptr) {
+               while ((u1 *) mcodeptr < cd->lastmcodeptr) {
+                       M_NOP;
+               }
+       }
+
        } /* if (bptr -> flags >= BBREACHED) */
        } /* for basic block */
 
-       codegen_createlinenumbertable(cd);
+       dseg_createlinenumbertable(cd);
 
+#if 0
        {
        s4        *xcodeptr;
        branchref *bref;
@@ -3583,26 +3629,19 @@ afteractualcall:
        xcodeptr = NULL;
        
        for (bref = cd->xdivrefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
                gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(16);
-
-               M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
+               MCODECHECK(100);
 
                if (xcodeptr != NULL) {
                        M_BR(xcodeptr - mcodeptr);
-                       M_NOP;
+                       M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);  /* delay */
 
                } else {
+                       M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
+
                        xcodeptr = mcodeptr;
 
                        M_MOV(REG_PV, rd->argintregs[0]);
@@ -3650,7 +3689,7 @@ afteractualcall:
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(20);
+               MCODECHECK(100);
 
                /* move index register into REG_ITMP1 */
 
@@ -3706,18 +3745,11 @@ afteractualcall:
        xcodeptr = NULL;
        
        for (bref = cd->xstorerefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
                gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(16);
+               MCODECHECK(100);
 
                M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
 
@@ -3758,18 +3790,11 @@ afteractualcall:
        xcodeptr = NULL;
        
        for (bref = cd->xcastrefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
                gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(16);
+               MCODECHECK(100);
 
                M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
 
@@ -3816,75 +3841,16 @@ afteractualcall:
                }
        }
 
-       /* generate NegativeArraySizeException stubs */
-
-       xcodeptr = NULL;
-       
-       for (bref = cd->xcheckarefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
-               gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                 bref->branchpos,
-                                                 (u1 *) mcodeptr - cd->mcodebase);
-
-               MCODECHECK(16);
-
-               M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
-
-               if (xcodeptr != NULL) {
-                       M_BR(xcodeptr - mcodeptr);
-                       M_NOP;
-
-               } else {
-                       xcodeptr = mcodeptr;
-
-                       M_MOV(REG_PV, rd->argintregs[0]);
-                       M_MOV(REG_SP, rd->argintregs[1]);
-                       M_ALD(rd->argintregs[2],
-                                 REG_SP, parentargs_base * 8 - SIZEOF_VOID_P);
-                       M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
-
-                       M_ASUB_IMM(REG_SP, 1 * 8, REG_SP);
-                       M_AST(REG_ITMP2_XPC, REG_SP, 0 * 8);
-
-                       a = dseg_addaddress(cd, stacktrace_inline_negativearraysizeexception);
-                       M_ALD(REG_ITMP3, REG_PV, a);
-                       M_JSR(REG_RA, REG_ITMP3);
-                       M_NOP;
-                       M_MOV(REG_RESULT, REG_ITMP1_XPTR);
-
-                       M_ALD(REG_ITMP2_XPC, REG_SP, 0 * 8);
-                       M_AADD_IMM(REG_SP, 1 * 8, REG_SP);
-
-                       a = dseg_addaddress(cd, asm_handle_exception);
-                       M_ALD(REG_ITMP3, REG_PV, a);
-                       M_JMP(REG_ITMP3);
-                       M_NOP;
-               }
-       }
-
        /* generate NullPointerException stubs */
 
        xcodeptr = NULL;
 
        for (bref = cd->xnullrefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
                gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(16);
+               MCODECHECK(100);
 
                M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
 
@@ -3931,31 +3897,24 @@ afteractualcall:
                }
        }
 
-       /* generate ICMD_CHECKEXCEPTION stubs */
+       /* generate exception check stubs */
 
        xcodeptr = NULL;
 
        for (bref = cd->xexceptionrefs; bref != NULL; bref = bref->next) {
-               if ((cd->exceptiontablelength == 0) && (xcodeptr != NULL)) {
-                       gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
-                                                         bref->branchpos,
-                                                         (u1 *) xcodeptr - cd->mcodebase - 4);
-                       continue;
-               }
-
                gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos, 
                                  bref->branchpos,
                                                  (u1 *) mcodeptr - cd->mcodebase);
 
-               MCODECHECK(16);
-
-               M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
+               MCODECHECK(100);
 
                if (xcodeptr != NULL) {
                        M_BR(xcodeptr - mcodeptr);
-                       M_NOP;
+                       M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);  /* delay */
 
                } else {
+                       M_AADD_IMM(REG_PV, bref->branchpos - 4, REG_ITMP2_XPC);
+
                        xcodeptr = mcodeptr;
 
                        M_MOV(REG_PV, rd->argintregs[0]);
@@ -3982,48 +3941,133 @@ afteractualcall:
                        M_NOP;
                }
        }
+#endif
 
-       /* generate patcher stub call code */
+
+       /* generate exception and patcher stubs */
 
        {
-               patchref *pref;
-               u8        mcode;
-               s4       *tmpmcodeptr;
+               exceptionref *eref;
+               patchref     *pref;
+               u8            mcode;
+               s4           *savedmcodeptr;
+               s4           *tmpmcodeptr;
+
+               savedmcodeptr = NULL;
+
+               /* generate exception stubs */
+
+               for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
+                       gen_resolvebranch((u1 *) cd->mcodebase + eref->branchpos, 
+                                                         eref->branchpos,
+                                                         (u1 *) mcodeptr - cd->mcodebase);
+
+                       MCODECHECK(100);
+
+                       /* Check if the exception is an
+                          ArrayIndexOutOfBoundsException.  If so, move index register
+                          into REG_ITMP1. */
+
+                       if (eref->reg != -1)
+                               M_MOV(eref->reg, REG_ITMP1);
+
+                       /* calcuate exception address */
+
+                       M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
+
+                       /* move function to call into REG_ITMP3 */
+
+                       disp = dseg_addaddress(cd, eref->function);
+                       M_ALD(REG_ITMP3, REG_PV, disp);
+
+                       if (savedmcodeptr != NULL) {
+                               M_BR(savedmcodeptr - mcodeptr);
+                               M_NOP;
+
+                       } else {
+                               savedmcodeptr = mcodeptr;
+
+                               M_MOV(REG_PV, rd->argintregs[0]);
+                               M_MOV(REG_SP, rd->argintregs[1]);
+
+                               if (m->isleafmethod)
+                                       M_MOV(REG_RA, rd->argintregs[2]);
+                               else
+                                       M_ALD(rd->argintregs[2],
+                                                 REG_SP, parentargs_base * 8 - SIZEOF_VOID_P);
+
+                               M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
+                               M_MOV(REG_ITMP1, rd->argintregs[4]);
+
+                               M_ASUB_IMM(REG_SP, 2 * 8, REG_SP);
+                               M_AST(REG_ITMP2_XPC, REG_SP, 0 * 8);
+
+                               if (m->isleafmethod)
+                                       M_AST(REG_RA, REG_SP, 1 * 8);
+
+                               M_JSR(REG_RA, REG_ITMP3);
+                               M_NOP;
+                               M_MOV(REG_RESULT, REG_ITMP1_XPTR);
+
+                               if (m->isleafmethod)
+                                       M_ALD(REG_RA, REG_SP, 1 * 8);
+
+                               M_ALD(REG_ITMP2_XPC, REG_SP, 0 * 8);
+                               M_AADD_IMM(REG_SP, 2 * 8, REG_SP);
+
+                               a = dseg_addaddress(cd, asm_handle_exception);
+                               M_ALD(REG_ITMP3, REG_PV, a);
+                               M_JMP(REG_ITMP3);
+                               M_NOP;
+                       }
+               }
+
+
+               /* generate code patching stub call code */
 
                for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
                        /* check code segment size */
 
-                       MCODECHECK(24);
+                       MCODECHECK(100);
 
-                       /* Get machine code which is patched back in later. The call is   */
-                       /* 2 instruction words long.                                      */
+                       /* Get machine code which is patched back in later. The
+                          call is 2 instruction words long. */
 
-                       xcodeptr = (s4 *) (cd->mcodebase + pref->branchpos);
+                       tmpmcodeptr = (s4 *) (cd->mcodebase + pref->branchpos);
 
-                       /* We need to split this, because an unaligned 8 byte read causes */
-                       /* a SIGSEGV.                                                     */
+                       /* We need to split this, because an unaligned 8 byte read
+                          causes a SIGSEGV. */
 
-                       mcode = ((u8) xcodeptr[1] << 32) + (u4) xcodeptr[0];
+                       mcode = ((u8) tmpmcodeptr[1] << 32) + (u4) tmpmcodeptr[0];
 
-                       /* patch in the call to call the following code (done at compile  */
-                       /* time)                                                          */
+                       /* Patch in the call to call the following code (done at
+                          compile time). */
 
-                       tmpmcodeptr = mcodeptr;         /* save current mcodeptr          */
-                       mcodeptr = xcodeptr;            /* set mcodeptr to patch position */
+                       savedmcodeptr = mcodeptr;       /* save current mcodeptr          */
+                       mcodeptr      = tmpmcodeptr;    /* set mcodeptr to patch position */
 
-                       M_BRS(tmpmcodeptr - (xcodeptr + 1));
-                       M_MOV(REG_RA, REG_ITMP3);       /* branch delay slot              */
+                       disp = (s4) (savedmcodeptr - (tmpmcodeptr + 1));
 
-                       mcodeptr = tmpmcodeptr;         /* restore the current mcodeptr   */
+                       if ((disp < (s4) 0xffff8000) || (disp > (s4) 0x00007fff)) {
+                               *exceptionptr =
+                                       new_internalerror("Jump offset is out of range: %d > +/-%d",
+                                                                         disp, 0x00007fff);
+                               return false;
+                       }
+
+                       M_BR(disp);
+                       M_NOP;
+
+                       mcodeptr = savedmcodeptr;       /* restore the current mcodeptr   */
 
                        /* create stack frame */
 
-                       M_ASUB_IMM(REG_SP, 5 * 8, REG_SP);
+                       M_ASUB_IMM(REG_SP, 6 * 8, REG_SP);
 
-                       /* move return address onto stack */
+                       /* calculate return address and move it onto the stack */
 
-                       M_AST(REG_RA, REG_SP, 4 * 8);
-                       M_MOV(REG_ITMP3, REG_RA);       /* restore return address         */
+                       M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
+                       M_AST(REG_ITMP3, REG_SP, 5 * 8);
 
                        /* move pointer to java_objectheader onto stack */
 
@@ -4031,73 +4075,103 @@ afteractualcall:
                        /* create a virtual java_objectheader */
 
                        (void) dseg_addaddress(cd, get_dummyLR());          /* monitorPtr */
-                       a = dseg_addaddress(cd, NULL);                      /* vftbl      */
+                       disp = dseg_addaddress(cd, NULL);                   /* vftbl      */
 
-                       if (a >= -32768) {
-                               M_LDA(REG_ITMP3, REG_PV, a);
-                       } else {
-                               M_LUI(REG_ITMP3, (a >> 16) & 0x0000ffff);
-                               M_OR_IMM(REG_ITMP3, a & 0x0000ffff, REG_ITMP3);
-                               M_AADD(REG_PV, REG_ITMP3, REG_ITMP3);
-                       }
-                       M_AST(REG_ITMP3, REG_SP, 3 * 8);
+                       M_LDA(REG_ITMP3, REG_PV, disp);
+                       M_AST(REG_ITMP3, REG_SP, 4 * 8);
 #else
-                       M_AST(REG_ZERO, REG_SP, 3 * 8);
+                       /* do nothing */
 #endif
 
                        /* move machine code onto stack */
 
-                       a = dseg_adds8(cd, mcode);
-                       if (a >= -32768) {
-                               M_LLD(REG_ITMP3, REG_PV, a);
-                       } else {
-                               M_LUI(REG_ITMP3, (a >> 16) & 0x0000ffff);
-                               M_AADD(REG_PV, REG_ITMP3, REG_ITMP3);
-                               M_LLD(REG_ITMP3, REG_ITMP3, a & 0x0000ffff);
-                       }
-                       M_LST(REG_ITMP3, REG_SP, 2 * 8);
+                       disp = dseg_adds8(cd, mcode);
+                       M_LLD(REG_ITMP3, REG_PV, disp);
+                       M_LST(REG_ITMP3, REG_SP, 3 * 8);
 
                        /* move class/method/field reference onto stack */
 
-                       a = dseg_addaddress(cd, pref->ref);
-                       if (a >= -32768) {
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                       } else {
-                               M_LUI(REG_ITMP3, (a >> 16) & 0x0000ffff);
-                               M_AADD(REG_PV, REG_ITMP3, REG_ITMP3);
-                               M_ALD(REG_ITMP3, REG_ITMP3, a & 0x0000ffff);
-                       }
-                       M_AST(REG_ITMP3, REG_SP, 1 * 8);
+                       disp = dseg_addaddress(cd, pref->ref);
+                       M_ALD(REG_ITMP3, REG_PV, disp);
+                       M_AST(REG_ITMP3, REG_SP, 2 * 8);
+
+                       /* move data segment displacement onto stack */
+
+                       disp = dseg_adds4(cd, pref->disp);
+                       M_ILD(REG_ITMP3, REG_PV, disp);
+                       M_IST(REG_ITMP3, REG_SP, 1 * 8);
 
                        /* move patcher function pointer onto stack */
 
-                       a = dseg_addaddress(cd, pref->patcher);
-                       if (a >= -32768) {
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                       } else {
-                               M_LUI(REG_ITMP3, (a >> 16) & 0x0000ffff);
-                               M_AADD(REG_PV, REG_ITMP3, REG_ITMP3);
-                               M_ALD(REG_ITMP3, REG_ITMP3, a & 0x0000ffff);
-                       }
+                       disp = dseg_addaddress(cd, pref->patcher);
+                       M_ALD(REG_ITMP3, REG_PV, disp);
                        M_AST(REG_ITMP3, REG_SP, 0 * 8);
 
-                       a = dseg_addaddress(cd, asm_wrapper_patcher);
-                       if (a >= -32768) {
-                               M_ALD(REG_ITMP3, REG_PV, a);
-                       } else {
-                               M_LUI(REG_ITMP3, (a >> 16) & 0x0000ffff);
-                               M_AADD(REG_PV, REG_ITMP3, REG_ITMP3);
-                               M_ALD(REG_ITMP3, REG_ITMP3, a & 0x0000ffff);
-                       }
+                       disp = dseg_addaddress(cd, asm_wrapper_patcher);
+                       M_ALD(REG_ITMP3, REG_PV, disp);
                        M_JMP(REG_ITMP3);
                        M_NOP;
                }
-       }
+
+               /* generate replacement-out stubs */
+
+               {
+                       int i;
+
+                       replacementpoint = cd->code->rplpoints;
+                       for (i=0; i<cd->code->rplpointcount; ++i, ++replacementpoint) {
+                               /* check code segment size */
+
+                               MCODECHECK(100);
+
+                               /* note start of stub code */
+
+                               replacementpoint->outcode = (u1*) (ptrint)((u1*)mcodeptr - cd->mcodebase);
+
+                               /* make machine code for patching */
+
+                               tmpmcodeptr = mcodeptr;
+                               mcodeptr = (s4*) &(replacementpoint->mcode);
+
+                               disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
+                               if ((disp < (s4) 0xffff8000) || (disp > (s4) 0x00007fff)) {
+                                       *exceptionptr =
+                                               new_internalerror("Jump offset is out of range: %d > +/-%d",
+                                                               disp, 0x00007fff);
+                                       return false;
+                               }
+                               M_BR(disp);
+                               M_NOP; /* delay slot */
+
+                               mcodeptr = tmpmcodeptr;
+
+                               /* create stack frame - 16-byte aligned */
+
+                               M_ASUB_IMM(REG_SP, 2 * 8, REG_SP);
+
+                               /* push address of `rplpoint` struct */
+
+                               disp = dseg_addaddress(cd, replacementpoint);
+                               M_ALD(REG_ITMP3, REG_PV, disp);
+                               M_AST(REG_ITMP3, REG_SP, 0 * 8);
+
+                               /* jump to replacement function */
+
+                               disp = dseg_addaddress(cd, asm_replacement_out);
+                               M_ALD(REG_ITMP3, REG_PV, disp);
+                               M_JMP(REG_ITMP3);
+                               M_NOP; /* delay slot */
+                       }
+               }
        }
 
        codegen_finish(m, cd, (s4) ((u1 *) mcodeptr - cd->mcodebase));
 
-       docacheflush((void *) m->entrypoint, ((u1 *) mcodeptr - cd->mcodebase));
+       docacheflush((void *) cd->code->entrypoint, ((u1 *) mcodeptr - cd->mcodebase));
+
+       /* everything's ok */
+
+       return true;
 }
 
 
@@ -4113,31 +4187,40 @@ afteractualcall:
 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
 
 
-functionptr createcompilerstub(methodinfo *m)
+u1 *createcompilerstub(methodinfo *m)
 {
-       ptrint *s;                          /* memory to hold the stub            */
+       u1     *s;                          /* memory to hold the stub            */
+       ptrint *d;
        s4     *mcodeptr;                   /* code generation pointer            */
 
-       s = (ptrint *) CNEW(u1, COMPILERSTUB_SIZE);
+       s = CNEW(u1, COMPILERSTUB_SIZE);
 
-       s[0] = (ptrint) m;
-       s[1] = (ptrint) asm_call_jit_compiler;
+       /* set data pointer and code pointer */
 
-       mcodeptr = (s4 *) (s + 2);
+       d = (ptrint *) s;
+       s = s + COMPILERSTUB_DATASIZE;
+
+       mcodeptr = (s4 *) s;
+       
+       /* Store the methodinfo* in the same place as in the methodheader
+          for compiled methods. */
 
-       M_ALD(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P); /* method pointer           */
-       M_ALD(REG_PV, REG_PV, -1 * SIZEOF_VOID_P);    /* pointer to compiler      */
+       d[0] = (ptrint) asm_call_jit_compiler;
+       d[1] = (ptrint) m;
+
+       M_ALD_INTERN(REG_ITMP1, REG_PV, -1 * SIZEOF_VOID_P);    /* method pointer */
+       M_ALD_INTERN(REG_PV, REG_PV, -2 * SIZEOF_VOID_P);  /* pointer to compiler */
        M_JMP(REG_PV);
        M_NOP;
 
        (void) docacheflush((void *) s, (char *) mcodeptr - (char *) s);
 
-#if defined(STATISTICS)
+#if defined(ENABLE_STATISTICS)
        if (opt_stat)
                count_cstub_len += COMPILERSTUB_SIZE;
 #endif
 
-       return (functionptr) (((u1 *) s) + COMPILERSTUB_DATASIZE);
+       return s;
 }
 
 
@@ -4147,8 +4230,8 @@ functionptr createcompilerstub(methodinfo *m)
 
 *******************************************************************************/
 
-functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
-                                                        registerdata *rd, methoddesc *nmd)
+u1 *createnativestub(functionptr f, methodinfo *m, codegendata *cd,
+                                        registerdata *rd, methoddesc *nmd)
 {
        s4         *mcodeptr;               /* code generation pointer            */
        s4          stackframesize;         /* size of stackframe if needed       */
@@ -4157,6 +4240,8 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        s4          i, j;                   /* count variables                    */
        s4          t;
        s4          s1, s2, disp;
+       s4          funcdisp;               /* displacement of the function       */
+
 
        /* initialize variables */
 
@@ -4169,6 +4254,7 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        stackframesize =
                1 +                             /* return address                     */
                sizeof(stackframeinfo) / SIZEOF_VOID_P +
+               sizeof(localref_table) / SIZEOF_VOID_P +
                md->paramcount +                /* for saving arguments over calls    */
                1 +                             /* for saving return address          */
                nmd->memuse;
@@ -4191,8 +4277,7 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
 
        /* initialize mcode variables */
        
-       mcodeptr = (s4 *) cd->mcodebase;
-       cd->mcodeend = (s4 *) (cd->mcodebase + cd->mcodesize);
+       mcodeptr = (s4 *) cd->mcodeptr;
 
 
        /* generate stub code */
@@ -4200,19 +4285,10 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        M_LDA(REG_SP, REG_SP, -stackframesize * 8); /* build up stackframe        */
        M_AST(REG_RA, REG_SP, stackframesize * 8 - SIZEOF_VOID_P); /* store ra    */
 
-       /* if function is static, check for initialized */
-
-       if ((m->flags & ACC_STATIC) && !m->class->initialized) {
-               codegen_addpatchref(cd, mcodeptr, PATCHER_clinit, m->class);
-
-               if (opt_showdisassemble) {
-                       M_NOP; M_NOP;
-               }
-       }
 
        /* call trace function */
 
-       if (runverbose) {
+       if (opt_verbosecall) {
                M_LDA(REG_SP, REG_SP, -(1 + INT_ARG_CNT + FLT_ARG_CNT) * 8);
 
                /* save integer argument registers */
@@ -4265,41 +4341,62 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        }
 
 
-#if 1
+       /* get function address (this must happen before the stackframeinfo) */
+
+       funcdisp = dseg_addaddress(cd, f);
+
+#if !defined(WITH_STATIC_CLASSPATH)
+       if (f == NULL) {
+               codegen_addpatchref(cd, mcodeptr, PATCHER_resolve_native, m, funcdisp);
+
+               if (opt_showdisassemble) {
+                       M_NOP; M_NOP;
+               }
+       }
+#endif
+
        /* save integer and float argument registers */
 
-       for (i = 0, j = 0; i < md->paramcount && i < INT_ARG_CNT; i++)
-               if (IS_INT_LNG_TYPE(md->paramtypes[i].type))
-                       M_LST(rd->argintregs[i], REG_SP, j++ * 8);
+       for (i = 0, j = 0; i < md->paramcount && i < INT_ARG_CNT; i++) {
+               if (IS_INT_LNG_TYPE(md->paramtypes[i].type)) {
+                       M_LST(rd->argintregs[i], REG_SP, j * 8);
+                       j++;
+               }
+       }
 
-       for (i = 0; i < md->paramcount && i < FLT_ARG_CNT; i++)
-               if (IS_FLT_DBL_TYPE(md->paramtypes[i].type))
-                       M_DST(rd->argfltregs[i], REG_SP, j++ * 8);
+       for (i = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
+               if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
+                       M_DST(rd->argfltregs[i], REG_SP, j * 8);
+                       j++;
+               }
+       }
 
-       /* create native stackframe info */
+       /* prepare data structures for native function call */
 
-       M_AADD_IMM(REG_SP,
-                          stackframesize * 8 - SIZEOF_VOID_P - sizeof(stackframeinfo),
-                          rd->argintregs[0]);
+       M_AADD_IMM(REG_SP, stackframesize * 8 - SIZEOF_VOID_P, rd->argintregs[0]);
        M_MOV(REG_PV, rd->argintregs[1]);
        M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[2]);
        M_ALD(rd->argintregs[3], REG_SP, stackframesize * 8 - SIZEOF_VOID_P);
-       disp = dseg_addaddress(cd, stacktrace_create_native_stackframeinfo);
+       disp = dseg_addaddress(cd, codegen_start_native_call);
        M_ALD(REG_ITMP3, REG_PV, disp);
        M_JSR(REG_RA, REG_ITMP3);
        M_NOP; /* XXX fill me! */
 
        /* restore integer and float argument registers */
 
-       for (i = 0, j = 0; i < md->paramcount && i < INT_ARG_CNT; i++)
-               if (IS_INT_LNG_TYPE(md->paramtypes[i].type))
-                       M_LLD(rd->argintregs[i], REG_SP, j++ * 8);
-
-       for (i = 0; i < md->paramcount && i < FLT_ARG_CNT; i++)
-               if (IS_FLT_DBL_TYPE(md->paramtypes[i].type))
-                       M_DLD(rd->argfltregs[i], REG_SP, j++ * 8);
-#endif
+       for (i = 0, j = 0; i < md->paramcount && i < INT_ARG_CNT; i++) {
+               if (IS_INT_LNG_TYPE(md->paramtypes[i].type)) {
+                       M_LLD(rd->argintregs[i], REG_SP, j * 8);
+                       j++;
+               }
+       }
 
+       for (i = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
+               if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
+                       M_DLD(rd->argfltregs[i], REG_SP, j * 8);
+                       j++;
+               }
+       }
 
        /* copy or spill arguments to new locations */
 
@@ -4361,57 +4458,37 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
 
        /* put env into first argument register */
 
-       disp = dseg_addaddress(cd, &env);
+       disp = dseg_addaddress(cd, _Jv_env);
        M_ALD(rd->argintregs[0], REG_PV, disp);
 
        /* do the native function call */
 
-#if !defined(ENABLE_STATICVM)
-       if (f == NULL) {
-               codegen_addpatchref(cd, mcodeptr, PATCHER_resolve_native, m);
-
-               if (opt_showdisassemble) {
-                       M_NOP; M_NOP;
-               }
-       }
-#endif
-
-       disp = dseg_addaddress(cd, f);
-       M_ALD(REG_ITMP3, REG_PV, disp);     /* load adress of native method       */
+       M_ALD(REG_ITMP3, REG_PV, funcdisp); /* load adress of native method       */
        M_JSR(REG_RA, REG_ITMP3);           /* call native method                 */
        M_NOP;                              /* delay slot                         */
 
-
-#if 1
-       /* remove native stackframe info */
+       /* save return value */
 
        if (IS_INT_LNG_TYPE(md->returntype.type))
                M_LST(REG_RESULT, REG_SP, 0 * 8);
        else
                M_DST(REG_FRESULT, REG_SP, 0 * 8);
 
-       M_AADD_IMM(REG_SP,
-                          stackframesize * 8 - SIZEOF_VOID_P - sizeof(stackframeinfo),
-                          rd->argintregs[0]);
-       disp = dseg_addaddress(cd, stacktrace_remove_stackframeinfo);
+       /* remove native stackframe info */
+
+       M_AADD_IMM(REG_SP, stackframesize * 8 - SIZEOF_VOID_P, rd->argintregs[0]);
+       disp = dseg_addaddress(cd, codegen_finish_native_call);
        M_ALD(REG_ITMP3, REG_PV, disp);
        M_JSR(REG_RA, REG_ITMP3);
        M_NOP; /* XXX fill me! */
 
-       if (IS_INT_LNG_TYPE(md->returntype.type))
-               M_LLD(REG_RESULT, REG_SP, 0 * 8);
-       else
-               M_DLD(REG_FRESULT, REG_SP, 0 * 8);
-#endif
-
-
        /* call finished trace function */
 
-       if (runverbose) {
-               M_LDA(REG_SP, REG_SP, -(2 * 8));
-
-               M_AST(REG_RESULT, REG_SP, 0 * 8);
-               M_DST(REG_FRESULT, REG_SP, 1 * 8);
+       if (opt_verbosecall) {
+               if (IS_INT_LNG_TYPE(md->returntype.type))
+                       M_LLD(REG_RESULT, REG_SP, 0 * 8);
+               else
+                       M_DLD(REG_FRESULT, REG_SP, 0 * 8);
 
                disp = dseg_addaddress(cd, m);
                M_ALD(rd->argintregs[0], REG_PV, disp);
@@ -4425,11 +4502,6 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
                M_ALD(REG_ITMP3, REG_PV, disp);
                M_JSR(REG_RA, REG_ITMP3);
                M_NOP;
-
-               M_ALD(REG_RESULT, REG_SP, 0 * 8);
-               M_DLD(REG_FRESULT, REG_SP, 1 * 8);
-
-               M_LDA(REG_SP, REG_SP, 2 * 8);
        }
 
        /* check for exception */
@@ -4438,32 +4510,28 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        disp = dseg_addaddress(cd, builtin_get_exceptionptrptr);
        M_ALD(REG_ITMP3, REG_PV, disp);
        M_JSR(REG_RA, REG_ITMP3);
-
-       /* delay slot */
-       if (IS_INT_LNG_TYPE(md->returntype.type))
-               M_AST(REG_RESULT, REG_SP, 0 * 8);
-       else
-               M_DST(REG_FRESULT, REG_SP, 0 * 8);
-
+       M_NOP;
        M_MOV(REG_RESULT, REG_ITMP3);
-
-       if (IS_INT_LNG_TYPE(md->returntype.type))
-               M_ALD(REG_RESULT, REG_SP, 0 * 8);
-       else
-               M_DLD(REG_FRESULT, REG_SP, 0 * 8);
 #else
        disp = dseg_addaddress(cd, &_exceptionptr);
        M_ALD(REG_ITMP3, REG_PV, disp);     /* get address of exceptionptr        */
 #endif
+       M_ALD(REG_ITMP1, REG_ITMP3, 0);     /* load exception into reg. itmp1     */
 
        M_ALD(REG_RA, REG_SP, stackframesize * 8 - SIZEOF_VOID_P); /* load ra     */
-       M_ALD(REG_ITMP1, REG_ITMP3, 0);     /* load exception into reg. itmp1     */
+
+       /* restore return value */
+
+       if (IS_INT_LNG_TYPE(md->returntype.type))
+               M_LLD(REG_RESULT, REG_SP, 0 * 8);
+       else
+               M_DLD(REG_FRESULT, REG_SP, 0 * 8);
 
        M_BNEZ(REG_ITMP1, 2);               /* if no exception then return        */
-       M_LDA(REG_SP, REG_SP, stackframesize * 8);/* remove stackframe, delay slot*/
+       M_LDA(REG_SP, REG_SP, stackframesize * 8);/* remove stackframe, DELAY SLOT*/
 
        M_RET(REG_RA);                      /* return to caller                   */
-       M_NOP;                              /* delay slot                         */
+       M_NOP;                              /* DELAY SLOT                         */
 
        /* handle exception */
        
@@ -4473,45 +4541,45 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
        M_ALD(REG_ITMP3, REG_PV, disp);     /* load asm exception handler address */
        M_JMP(REG_ITMP3);                   /* jump to asm exception handler      */
        M_LDA(REG_ITMP2, REG_RA, -4);       /* move fault address into reg. itmp2 */
-                                           /* delay slot                         */
+                                           /* DELAY SLOT                         */
 
        /* generate static stub call code                                         */
 
        {
                patchref *pref;
-               s4       *xcodeptr;
-               s8        mcode;
+               u8        mcode;
+               s4       *savedmcodeptr;
                s4       *tmpmcodeptr;
 
                for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
-                       /* Get machine code which is patched back in later. The call is   */
-                       /* 2 instruction words long.                                      */
+                       /* Get machine code which is patched back in later. The
+                          call is 2 instruction words long. */
 
-                       xcodeptr = (s4 *) (cd->mcodebase + pref->branchpos);
+                       tmpmcodeptr = (s4 *) (cd->mcodebase + pref->branchpos);
 
-                       /* We need to split this, because an unaligned 8 byte read causes */
-                       /* a SIGSEGV.                                                     */
+                       /* We need to split this, because an unaligned 8 byte read
+                          causes a SIGSEGV. */
 
-                       mcode = ((u8) xcodeptr[1] << 32) + (u4) xcodeptr[0];
+                       mcode = ((u8) tmpmcodeptr[1] << 32) + (u4) tmpmcodeptr[0];
 
-                       /* patch in the call to call the following code (done at compile  */
-                       /* time)                                                          */
+                       /* Patch in the call to call the following code (done at
+                          compile time). */
 
-                       tmpmcodeptr = mcodeptr;         /* save current mcodeptr          */
-                       mcodeptr = xcodeptr;            /* set mcodeptr to patch position */
+                       savedmcodeptr = mcodeptr;       /* save current mcodeptr          */
+                       mcodeptr      = tmpmcodeptr;    /* set mcodeptr to patch position */
 
-                       M_BRS(tmpmcodeptr - (xcodeptr + 1));
+                       M_BRS(savedmcodeptr - (tmpmcodeptr + 1));
                        M_NOP;                          /* branch delay slot              */
 
-                       mcodeptr = tmpmcodeptr;         /* restore the current mcodeptr   */
+                       mcodeptr = savedmcodeptr;       /* restore the current mcodeptr   */
 
                        /* create stack frame                                             */
 
-                       M_LSUB_IMM(REG_SP, 5 * 8, REG_SP);
+                       M_LSUB_IMM(REG_SP, 6 * 8, REG_SP);
 
                        /* move return address onto stack */
 
-                       M_AST(REG_RA, REG_SP, 4 * 8);
+                       M_AST(REG_RA, REG_SP, 5 * 8);
 
                        /* move pointer to java_objectheader onto stack */
 
@@ -4522,24 +4590,30 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
                        disp = dseg_addaddress(cd, NULL);                   /* vftbl      */
 
                        M_LDA(REG_ITMP3, REG_PV, disp);
-                       M_AST(REG_ITMP3, REG_SP, 3 * 8);
+                       M_AST(REG_ITMP3, REG_SP, 4 * 8);
 #else
-                       M_AST(REG_ZERO, REG_SP, 3 * 8);
+                       M_AST(REG_ZERO, REG_SP, 4 * 8);
 #endif
 
-                       /* move machine code onto stack                                   */
+                       /* move machine code onto stack */
 
                        disp = dseg_adds8(cd, mcode);
                        M_LLD(REG_ITMP3, REG_PV, disp);
-                       M_LST(REG_ITMP3, REG_SP, 2 * 8);
+                       M_LST(REG_ITMP3, REG_SP, 3 * 8);
 
                        /* move class/method/field reference onto stack */
 
                        disp = dseg_addaddress(cd, pref->ref);
                        M_ALD(REG_ITMP3, REG_PV, disp);
-                       M_AST(REG_ITMP3, REG_SP, 1 * 8);
+                       M_AST(REG_ITMP3, REG_SP, 2 * 8);
 
-                       /* move patcher function pointer onto stack                       */
+                       /* move data segment displacement onto stack */
+
+                       disp = dseg_adds4(cd, pref->disp);
+                       M_ILD(REG_ITMP3, REG_PV, disp);
+                       M_IST(REG_ITMP3, REG_SP, 1 * 8);
+
+                       /* move patcher function pointer onto stack */
 
                        disp = dseg_addaddress(cd, pref->patcher);
                        M_ALD(REG_ITMP3, REG_PV, disp);
@@ -4554,9 +4628,9 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
 
        codegen_finish(m, cd, (s4) ((u1 *) mcodeptr - cd->mcodebase));
 
-       docacheflush((void *) m->entrypoint, ((u1 *) mcodeptr - cd->mcodebase));
+       docacheflush((void *) cd->code->entrypoint, ((u1 *) mcodeptr - cd->mcodebase));
 
-       return m->entrypoint;
+       return cd->code->entrypoint;
 }
 
 
@@ -4571,4 +4645,5 @@ functionptr createnativestub(functionptr f, methodinfo *m, codegendata *cd,
  * c-basic-offset: 4
  * tab-width: 4
  * End:
+ * vim:noexpandtab:sw=4:ts=4:
  */