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2007-03-12 H.J. Lu <hongjiu.lu@intel.com>

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* config/tc-i386.c (md_assemble): Use Opcode_XXX instead of XXX
	on i.tm.base_opcode.
	(match_template): Likewise.
	(process_operands): Use ~0x3 mask to match MOV_AX_DISP32.

	* config/tc-i386.h (Opcode_D): New.
	(Opcode_FloatR): Likewise.
	(Opcode_FloatD): Likewise.
	(D): Redefined.
	(W): Likewise.
	(FloatMF): Likewise.
	(FloatR): Likewise.
	(FloatD): Likewise.
This commit is contained in:
H.J. Lu 2007-03-12 21:36:23 +00:00
parent a4fd337476
commit 8a2ed48987
3 changed files with 37 additions and 10 deletions
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16
gas/ChangeLog
View file

@ -1,3 +1,19 @@
2007-03-12 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (md_assemble): Use Opcode_XXX instead of XXX
on i.tm.base_opcode.
(match_template): Likewise.
(process_operands): Use ~0x3 mask to match MOV_AX_DISP32.
* config/tc-i386.h (Opcode_D): New.
(Opcode_FloatR): Likewise.
(Opcode_FloatD): Likewise.
(D): Redefined.
(W): Likewise.
(FloatMF): Likewise.
(FloatR): Likewise.
(FloatD): Likewise.
2007-03-09 Alexandre Oliva <aoliva@redhat.com>
* app.c (do_scrub_chars): Recognize comments after # line "file".

13
gas/config/tc-i386.c
View file

@ -1766,7 +1766,7 @@ md_assemble (line)
/* Undo SYSV386_COMPAT brokenness when in Intel mode. See i386.h */
if (SYSV386_COMPAT
&& (i.tm.base_opcode & 0xfffffde0) == 0xdce0)
i.tm.base_opcode ^= FloatR;
i.tm.base_opcode ^= Opcode_FloatR;
/* Zap movzx and movsx suffix. The suffix may have been set from
"word ptr" or "byte ptr" on the source operand, but we'll use
@ -2657,7 +2657,14 @@ match_template (void)
}
/* found_reverse_match holds which of D or FloatDR
we've found. */
found_reverse_match = t->opcode_modifier & (D | FloatDR);
if ((t->opcode_modifier & D))
found_reverse_match = Opcode_D;
else if ((t->opcode_modifier & FloatD))
found_reverse_match = Opcode_FloatD;
else
found_reverse_match = 0;
if ((t->opcode_modifier & FloatR))
found_reverse_match |= Opcode_FloatR;
}
else
{
@ -3322,7 +3329,7 @@ process_operands (void)
default_seg = build_modrm_byte ();
}
else if ((i.tm.base_opcode & ~(D | W)) == MOV_AX_DISP32)
else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32)
{
default_seg = &ds;
}

18
gas/config/tc-i386.h
View file

@ -159,6 +159,11 @@ typedef struct
/* base_opcode is the fundamental opcode byte without optional
prefix(es). */
unsigned int base_opcode;
#define Opcode_D 0x2 /* Direction bit:
set if Reg --> Regmem;
unset if Regmem --> Reg. */
#define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
#define Opcode_FloatD 0x400 /* Direction bit for float insns. */
/* extension_opcode is the 3 bit extension for group <n> insns.
This field is also used to store the 8-bit opcode suffix for the
@ -207,19 +212,18 @@ typedef struct
unsigned int opcode_modifier;
/* opcode_modifier bits: */
#define W 0x1 /* set if operands can be words or dwords
#define D 0x1 /* has direction bit. */
#define W 0x2 /* set if operands can be words or dwords
encoded the canonical way */
#define D 0x2 /* D = 0 if Reg --> Regmem;
D = 1 if Regmem --> Reg: MUST BE 0x2 */
#define Modrm 0x4
#define FloatR 0x8 /* src/dest swap for floats: MUST BE 0x8 */
#define Modrm 0x4 /* insn has a modrm byte. */
#define ShortForm 0x10 /* register is in low 3 bits of opcode */
#define FloatMF 0x20 /* FP insn memory format bit, sized by 0x4 */
#define Jump 0x40 /* special case for jump insns. */
#define JumpDword 0x80 /* call and jump */
#define JumpByte 0x100 /* loop and jecxz */
#define JumpInterSegment 0x200 /* special case for intersegment leaps/calls */
#define FloatD 0x400 /* direction for float insns: MUST BE 0x400 */
#define FloatMF 0x400 /* FP insn memory format bit, sized by 0x4 */
#define FloatR 0x800 /* src/dest swap for floats. */
#define FloatD 0x1000 /* has float insn direction bit. */
#define Size16 0x2000 /* needs size prefix if in 32-bit mode */
#define Size32 0x4000 /* needs size prefix if in 16-bit mode */
#define Size64 0x8000 /* needs size prefix if in 64-bit mode */