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x86-asm: Remove OPC_D16

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Now that we can store prefixes even for 0x0fXX opcodes we can remove
the OPC_D16 bit.
This commit is contained in:
Michael Matz 2016-05-15 18:50:21 +02:00
parent 8a10a442ff
commit 5a222588a8
3 changed files with 6 additions and 10 deletions
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3
i386-asm.c
View File

@ -48,7 +48,6 @@
#define OPC_SHORTJMP 0x80 /* short jmp operand */
#define OPC_0F 0x100 /* Is secondary map (0x0f prefix) */
#define OPC_D16 0x0800 /* generate data16 prefix */
#ifdef TCC_TARGET_X86_64
# define OPC_WLQ 0x1000 /* accepts w, l, q or no suffix */
# define OPC_BWLQ (OPC_B | OPC_WLQ) /* accepts b, w, l, q or no suffix */
@ -752,7 +751,7 @@ ST_FUNC void asm_opcode(TCCState *s1, int opcode)
#endif
/* generate data16 prefix if needed */
p66 = 0;
if (s == 1 || (pa->instr_type & OPC_D16))
if (s == 1)
p66 = 1;
else {
/* accepting mmx+sse in all operands --> needs 0x66 to

4
i386-asm.h
View File

@ -115,7 +115,7 @@ ALT(DEF_ASM_OP2(movw, 0x0f23, 0, OPC_MODRM | OPC_WLX, OPT_REG32, OPT_DB))
ALT(DEF_ASM_OP2(movw, 0x0f26, 0, OPC_MODRM | OPC_WLX, OPT_REG32, OPT_TR))
ALT(DEF_ASM_OP2(movsbl, 0x0fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG32))
ALT(DEF_ASM_OP2(movsbw, 0x0fbe, 0, OPC_MODRM | OPC_D16, OPT_REG8 | OPT_EA, OPT_REG16))
ALT(DEF_ASM_OP2(movsbw, 0x660fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG16))
ALT(DEF_ASM_OP2(movswl, 0x0fbf, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32))
ALT(DEF_ASM_OP2(movzbw, 0x0fb6, 0, OPC_MODRM | OPC_WLX, OPT_REG8 | OPT_EA, OPT_REGW))
ALT(DEF_ASM_OP2(movzwl, 0x0fb7, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32))
@ -363,7 +363,7 @@ ALT(DEF_ASM_OP2(cmpxchgb, 0x0fb0, 0, OPC_MODRM | OPC_BWLX, OPT_REG, OPT_REG | OP
DEF_ASM_OP1(invlpg, 0x0f01, 7, OPC_MODRM, OPT_EA )
DEF_ASM_OP2(boundl, 0x62, 0, OPC_MODRM, OPT_REG32, OPT_EA)
DEF_ASM_OP2(boundw, 0x62, 0, OPC_MODRM | OPC_D16, OPT_REG16, OPT_EA)
DEF_ASM_OP2(boundw, 0x6662, 0, OPC_MODRM, OPT_REG16, OPT_EA)
/* pentium */
DEF_ASM_OP1(cmpxchg8b, 0x0fc7, 1, OPC_MODRM, OPT_EA )

9
x86_64-asm.h
View File

@ -114,7 +114,7 @@ ALT(DEF_ASM_OP2(movw, 0x0f21, 0, OPC_MODRM | OPC_WLX, OPT_DB, OPT_REG64))
ALT(DEF_ASM_OP2(movw, 0x0f22, 0, OPC_MODRM | OPC_WLX, OPT_REG64, OPT_CR))
ALT(DEF_ASM_OP2(movw, 0x0f23, 0, OPC_MODRM | OPC_WLX, OPT_REG64, OPT_DB))
ALT(DEF_ASM_OP2(movsbw, 0x0fbe, 0, OPC_MODRM | OPC_D16, OPT_REG8 | OPT_EA, OPT_REG16))
ALT(DEF_ASM_OP2(movsbw, 0x660fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG16))
ALT(DEF_ASM_OP2(movsbl, 0x0fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG32))
ALT(DEF_ASM_OP2(movsbq, 0x0fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REGW))
ALT(DEF_ASM_OP2(movswl, 0x0fbf, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32))
@ -126,11 +126,11 @@ ALT(DEF_ASM_OP2(movzwq, 0x0fb7, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG))
ALT(DEF_ASM_OP1(pushq, 0x6a, 0, 0, OPT_IM8S))
ALT(DEF_ASM_OP1(push, 0x6a, 0, 0, OPT_IM8S))
ALT(DEF_ASM_OP1(pushw, 0x6a, 0, OPC_D16, OPT_IM8S))
ALT(DEF_ASM_OP1(pushw, 0x666a, 0, 0, OPT_IM8S))
ALT(DEF_ASM_OP1(pushw, 0x50, 0, OPC_REG | OPC_WLX, OPT_REG64))
ALT(DEF_ASM_OP1(pushw, 0x50, 0, OPC_REG | OPC_WLX, OPT_REG16))
ALT(DEF_ASM_OP1(pushw, 0xff, 6, OPC_MODRM | OPC_WLX, OPT_REG64 | OPT_EA))
ALT(DEF_ASM_OP1(pushw, 0x68, 0, OPC_D16, OPT_IM16))
ALT(DEF_ASM_OP1(pushw, 0x6668, 0, 0, OPT_IM16))
ALT(DEF_ASM_OP1(pushw, 0x68, 0, OPC_WLX, OPT_IM32))
ALT(DEF_ASM_OP1(pushw, 0x06, 0, OPC_WLX, OPT_SEG))
@ -368,9 +368,6 @@ ALT(DEF_ASM_OP2(xaddb, 0x0fc0, 0, OPC_MODRM | OPC_BWLX, OPT_REG, OPT_REG | OPT_E
ALT(DEF_ASM_OP2(cmpxchgb, 0x0fb0, 0, OPC_MODRM | OPC_BWLX, OPT_REG, OPT_REG | OPT_EA ))
DEF_ASM_OP1(invlpg, 0x0f01, 7, OPC_MODRM, OPT_EA )
DEF_ASM_OP2(boundl, 0x62, 0, OPC_MODRM, OPT_REG32, OPT_EA)
DEF_ASM_OP2(boundw, 0x62, 0, OPC_MODRM | OPC_D16, OPT_REG16, OPT_EA)
/* pentium */
DEF_ASM_OP1(cmpxchg8b, 0x0fc7, 1, OPC_MODRM, OPT_EA )