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Detect correct instruction with incorrect operands

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Display a different warning when an instruction is recognized by tcc but
the operands found do not correspond to the constraints of the
instruction.
This commit is contained in:
Thomas Preud'homme 2013-09-24 15:32:52 +02:00
parent 45b35a3d66
commit a1a691a030
3 changed files with 6 additions and 2 deletions
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4
i386-asm.c
View file

@ -27,6 +27,7 @@
#define TOK_ASM_first TOK_ASM_clc
#define TOK_ASM_last TOK_ASM_emms
#define TOK_ASM_alllast TOK_ASM_pxor
#define OPC_JMP 0x01 /* jmp operand */
#define OPC_B 0x02 /* only used with OPC_WL */
@ -715,6 +716,9 @@ ST_FUNC void asm_opcode(TCCState *s1, int opcode)
g(b >> 8);
g(b);
return;
} else if (opcode <= TOK_ASM_alllast) {
tcc_error("bad operand with opcode '%s'",
get_tok_str(opcode, NULL));
} else {
tcc_error("unknown opcode '%s'",
get_tok_str(opcode, NULL));

2
i386-asm.h
View file

@ -463,7 +463,7 @@ ALT(DEF_ASM_OP2(psrlq, 0x0f73, 2, OPC_MODRM, OPT_IM8, OPT_MMX ))
DEF_ASM_OP2(punpcklbw, 0x0f60, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(punpcklwd, 0x0f61, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(punpckldq, 0x0f62, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) /* must be last !OP0 */
#undef ALT
#undef DEF_ASM_OP0

2
x86_64-asm.h
View file

@ -438,7 +438,7 @@ ALT(DEF_ASM_OP2(psrlq, 0x0f73, 2, OPC_MODRM, OPT_IM8, OPT_MMX ))
DEF_ASM_OP2(punpcklbw, 0x0f60, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(punpcklwd, 0x0f61, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(punpckldq, 0x0f62, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )
DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) /* must be last !OP0 */
#undef ALT
#undef DEF_ASM_OP0