Commit graph

24 commits

Author SHA1 Message Date
Ulrich Drepper
59e907e3c7 Add support for fxsave, fxrstor, sysenter and sysexit. 1998-06-19 01:58:00 +00:00
Ian Lance Taylor
b8e4d255f3 Tue Jun 9 12:16:01 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h: Change occurences of Data16 to Size16, Data32 to Size32,
	IgnoreDataSize to IgnoreSize.  Flag address and data size prefixes
	with Size16|IgnoreSize or Size32|IgnoreSize.
1998-06-09 16:18:24 +00:00
Ian Lance Taylor
038915c98c Mon Jun 8 12:15:52 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h (REPNE): Rename to REPNE_PREFIX_OPCODE.
	(REPE): Rename to REPE_PREFIX_OPCODE.
	(i386_regtab_end): Remove.
	(i386_prefixtab, i386_prefixtab_end): Remove.
	(i386_optab): Use NULL as sentinel rather than "" to suit rewrite
	of md_begin.
	(MAX_OPCODE_SIZE): Define.
	(i386_optab_end): Remove.
	(sl_Suf): Define.
	(sl_FP): Use sl_Suf.

	* i386.h (i386_optab): Allow 16 bit displacement for `mov
	mem,acc'.  Combine 16 and 32 bit forms of various insns.  Allow 16
	bit form of ljmp.  Add IsPrefix modifier to prefixes.  Add addr32,
	data32, dword, and adword prefixes.
	(i386_regtab): Add BaseIndex modifier to valid 16 bit base/index
	regs.
1998-06-08 16:20:19 +00:00
Ian Lance Taylor
ed44fb7a0d Fri Jun 5 23:42:43 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h (i386_regtab): Remove BaseIndex modifier from esp.

	* i386.h: Allow `l' suffix on fld, fst, fstp, fcom, fcomp with
	register operands, because this is a common idiom.  Flag them with
	a warning.  Allow illegal faddp, fsubp, fsubrp, fmulp, fdivp,
	fdivrp because gcc erroneously generates them.  Also flag with a
	warning.

	* i386.h: Add suffix modifiers to most insns, and tighter operand
	checks in some cases.  Fix a number of UnixWare compatibility
	issues with float insns.  Merge some floating point opcodes, using
	new FloatMF modifier.
	(WORD_PREFIX_OPCODE): Rename to DATA_PREFIX_OPCODE for
	consistency.

	* i386.h: Change occurence of ShortformW to W|ShortForm.  Add
	IgnoreDataSize where appropriate.
1998-06-06 03:47:33 +00:00
Ian Lance Taylor
77be9a8a19 Wed Jun 3 18:28:45 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h: (one_byte_segment_defaults): Remove.
	(two_byte_segment_defaults): Remove.
	(i386_regtab): Add BaseIndex to 32 bit regs reg_type.
1998-06-03 22:31:09 +00:00
Tom Tromey
9d3a718ca9 * i386.h (Z_): Renamed from `_' to avoid clash with common alias
for `gettext'.
1998-04-19 19:59:21 +00:00
Ian Lance Taylor
ffabaa53e9 Fri Apr 3 12:04:48 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h: Remove NoModrm flag from all insns: it's never checked.
	Add IsString flag to string instructions.
	(IS_STRING): Don't define.
	(LOCK_PREFIX_OPCODE, CS_PREFIX_OPCODE, DS_PREFIX_OPCODE): Define.
	(ES_PREFIX_OPCODE, FS_PREFIX_OPCODE, GS_PREFIX_OPCODE): Define.
	(SS_PREFIX_OPCODE): Define.
1998-04-03 17:07:03 +00:00
Ian Lance Taylor
d411c9efe5 fix copyright 1998-03-31 02:41:10 +00:00
Ian Lance Taylor
ffd42166a5 * i386.h: Revert March 24 patch; no more LinearAddress. 1998-03-31 02:33:19 +00:00
Ian Lance Taylor
86bdd00edd comment fix 1998-03-30 16:02:18 +00:00
Ian Lance Taylor
eff2a090b6 Mon Mar 30 10:25:54 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* i386.h (i386_optab): Change second operand constraint of `mov
	sreg,reg|mem' instruction from Reg16|Mem to WordReg|WordMem to
	allow legal instructions such as `movl %gs,%esi'
1998-03-30 15:29:49 +00:00
Ian Lance Taylor
19f080ab4e * i386.h: Set ud2 to 0x0f0b. From Gabriel Paubert
<paubert@iram.es>.
1997-08-26 16:40:41 +00:00
Ian Lance Taylor
9df6ca2f46 * i386.h: Comment fixes for ficom[p]?{s,l} from Gabriel Paubert
<paubert@iram.es>.
1997-08-26 16:36:07 +00:00
Ian Lance Taylor
c2367582a0 * i386.h (JUMP_ON_CX_ZERO): Uncomment (define again).
(JUMP_ON_EXC_ZERO): Remove commented out macro.
1997-08-26 16:22:36 +00:00
Ian Lance Taylor
3abaf93062 * i386.h: Add MMX instructions. 1997-05-05 21:16:46 +00:00
Ian Lance Taylor
654b084539 Mon May 5 12:45:19 1997 H.J. Lu <hjl@gnu.ai.mit.edu>
* i386.h: Remove W modifier from conditional move instructions.
1997-05-05 16:46:18 +00:00
Ian Lance Taylor
c0d7b5346d * i386.h: Revert last patch for the NON_BROKEN_OPCODES cases. 1997-04-05 18:15:32 +00:00
Ian Lance Taylor
80aeca1402 update copyright 1997-04-04 19:06:12 +00:00
Ian Lance Taylor
c00435ed04 * i386.h: Correct opcode values for fsubp, fsubrp, fdivp, and
fdivrp.
1997-04-04 19:03:15 +00:00
Ian Lance Taylor
527cabaf29 * i386.h: Change DW to W for cmpxchg and xadd, since they don't
take a direction bit.
1997-03-21 00:53:24 +00:00
Ken Raeburn
cd22144a90 pentium updates 1995-10-06 01:43:38 +00:00
Ken Raeburn
a43022bd72 i386 16-bit mode support from bryan ford 1995-02-06 08:38:27 +00:00
Ian Lance Taylor
fc0d7441be * i386.h (i386_optab): Properly bracket initializers. 1993-09-09 21:43:54 +00:00
John Gilmore
ce868e5c94 * i386.h: Add setc, setnc, addr16, data16, repz, repnz aliases.
Fix opcodes on various sizes of fild/fist instructions
(16bit=no suffix, 32bit="l" suffix, 64bit="ll" suffix).
Fixes suggested by Minh Tran-Le.
1992-06-27 04:56:08 +00:00