This commit was manufactured by cvs2svn to create branch 'mono-1-0'.

[mono.git] / mono / arch / x86 / x86-codegen.h

diff --git a/mono/arch/x86/x86-codegen.h b/mono/arch/x86/x86-codegen.h
index ba64bbf50e28e657552566fda3a047a56895e5f4..e0b12ff5378beb24b78541eb787bccf7561c6ede 100644 (file)
--- a/mono/arch/x86/x86-codegen.h
+++ b/mono/arch/x86/x86-codegen.h
@@ -6,6 +6,7 @@
  *   Intel Corporation (ORP Project)
  *   Sergey Chaban (serge@wildwestsoftware.com)
  *   Dietmar Maurer (dietmar@ximian.com)
+ *   Patrik Torstensson
  * 
  * Copyright (C)  2000 Intel Corporation.  All rights reserved.
  * Copyright (C)  2001, 2002 Ximian, Inc.
@@ -89,6 +90,39 @@ typedef enum {
        X86_CC_NO = 11,
        X86_NCC
 } X86_CC;
+
+/* FP status */
+enum {
+       X86_FP_C0 = 0x100,
+       X86_FP_C1 = 0x200,
+       X86_FP_C2 = 0x400,
+       X86_FP_C3 = 0x4000,
+       X86_FP_CC_MASK = 0x4500
+};
+
+/* FP control word */
+enum {
+       X86_FPCW_INVOPEX_MASK = 0x1,
+       X86_FPCW_DENOPEX_MASK = 0x2,
+       X86_FPCW_ZERODIV_MASK = 0x4,
+       X86_FPCW_OVFEX_MASK   = 0x8,
+       X86_FPCW_UNDFEX_MASK  = 0x10,
+       X86_FPCW_PRECEX_MASK  = 0x20,
+       X86_FPCW_PRECC_MASK   = 0x300,
+       X86_FPCW_ROUNDC_MASK  = 0xc00,
+
+       /* values for precision control */
+       X86_FPCW_PREC_SINGLE    = 0,
+       X86_FPCW_PREC_DOUBLE    = 0x200,
+       X86_FPCW_PREC_EXTENDED  = 0x300,
+
+       /* values for rounding control */
+       X86_FPCW_ROUND_NEAREST  = 0,
+       X86_FPCW_ROUND_DOWN     = 0x400,
+       X86_FPCW_ROUND_UP       = 0x800,
+       X86_FPCW_ROUND_TOZERO   = 0xc00
+};
+
 /*
 // prefix code
 */
@@ -103,6 +137,8 @@ typedef enum {
        X86_ES_PREFIX = 0x26,
        X86_FS_PREFIX = 0x64,
        X86_GS_PREFIX = 0x65,
+       X86_UNLIKELY_PREFIX = 0x2E,
+       X86_LIKELY_PREFIX = 0x3E,
        X86_OPERAND_PREFIX = 0x66,
        X86_ADDRESS_PREFIX = 0x67
 } X86_Prefix;
@@ -161,6 +197,8 @@ typedef union {
 #define X86_IS_SCRATCH(reg) (X86_CALLER_REGS & (1 << (reg))) /* X86_EAX, X86_ECX, or X86_EDX */
 #define X86_IS_CALLEE(reg)  (X86_CALLEE_REGS & (1 << (reg)))   /* X86_ESI, X86_EDI, X86_EBX, or X86_EBP */
 
+#define X86_IS_BYTE_REG(reg) ((reg) < 4)
+
 /*
 // Frame structure:
 //
@@ -266,7 +304,7 @@ typedef union {
                        x86_address_byte ((inst), (shift), (indexreg), (basereg));      \
                        x86_imm_emit8 ((inst), (disp)); \
                } else {        \
-                       x86_address_byte ((inst), 0, (r), 4);   \
+                       x86_address_byte ((inst), 2, (r), 4);   \
                        x86_address_byte ((inst), (shift), (indexreg), 5);      \
                        x86_imm_emit32 ((inst), (disp));        \
                }       \
@@ -320,6 +358,10 @@ typedef union {
 #define x86_cld(inst) do { *(inst)++ =(unsigned char)0xfc; } while (0)
 #define x86_stosb(inst) do { *(inst)++ =(unsigned char)0xaa; } while (0)
 #define x86_stosl(inst) do { *(inst)++ =(unsigned char)0xab; } while (0)
+#define x86_stosd(inst) x86_stosl((inst))
+#define x86_movsb(inst) do { *(inst)++ =(unsigned char)0xa4; } while (0)
+#define x86_movsl(inst) do { *(inst)++ =(unsigned char)0xa5; } while (0)
+#define x86_movsd(inst) x86_movsl((inst))
 
 #define x86_prefix(inst,p) do { *(inst)++ =(unsigned char) (p); } while (0)
 
@@ -947,6 +989,7 @@ typedef union {
 #define x86_widen_reg(inst,dreg,reg,is_signed,is_half) \
        do {    \
                unsigned char op = 0xb6;        \
+                g_assert (is_half ||  X86_IS_BYTE_REG (reg)); \
                *(inst)++ = (unsigned char)0x0f;        \
                if ((is_signed)) op += 0x08;    \
                if ((is_half)) op += 0x01;      \
@@ -1179,6 +1222,12 @@ typedef union {
                *(inst)++ = (unsigned char)0xe8;        \
        } while (0)
 
+#define x86_fldpi(inst)        \
+       do {    \
+               *(inst)++ = (unsigned char)0xd9;        \
+               *(inst)++ = (unsigned char)0xeb;        \
+       } while (0)
+
 #define x86_fst(inst,mem,is_double,pop_stack)  \
        do {    \
                *(inst)++ = (is_double) ? (unsigned char)0xdd: (unsigned char)0xd9;     \
@@ -1227,6 +1276,13 @@ typedef union {
                }       \
        } while (0)
 
+#define x86_fstsw(inst)        \
+       do {    \
+                       *(inst)++ = (unsigned char)0x9b;        \
+                       *(inst)++ = (unsigned char)0xdf;        \
+                       *(inst)++ = (unsigned char)0xe0;        \
+       } while (0)
+
 /**
  * @x86_fist_membase
  * Converts content of ST(0) to integer and stores it at memory location
@@ -1418,6 +1474,7 @@ typedef union {
 
 #define x86_set_reg(inst,cond,reg,is_signed)   \
        do {    \
+                g_assert (X86_IS_BYTE_REG (reg)); \
                *(inst)++ = (unsigned char)0x0f;        \
                if ((is_signed))        \
                        *(inst)++ = x86_cc_signed_map [(cond)] + 0x20;  \
@@ -1532,6 +1589,8 @@ typedef union {
 #define x86_fsin(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xfe; } while (0)
 #define x86_fcos(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xff; } while (0)
 #define x86_fabs(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xe1; } while (0)
+#define x86_ftst(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xe4; } while (0)
+#define x86_fxam(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xe5; } while (0)
 #define x86_fpatan(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xf3; } while (0)
 #define x86_fprem(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xf8; } while (0)
 #define x86_fprem1(inst) do { *(inst)++ = (unsigned char)0xd9; *(inst)++ = (unsigned char)0xf5; } while (0)