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| author | Jan Beulich <jbeulich@novell.com> | 2004-11-25 08:42:54 +0000 |
|---|---|---|
| committer | Jan Beulich <jbeulich@novell.com> | 2004-11-25 08:42:54 +0000 |
| commit | 37edbb65ad7d81f172315eadf4f66783d78c36a5 (patch) | |
| tree | 9113686b18a9275f5a46f1c0ecd9d38d2b7dcb64 /include/opcode/i386.h | |
| parent | ebd98106b23a4d1d64a492cf26977e66c32393ac (diff) | |
| download | gdb-37edbb65ad7d81f172315eadf4f66783d78c36a5.zip gdb-37edbb65ad7d81f172315eadf4f66783d78c36a5.tar.gz gdb-37edbb65ad7d81f172315eadf4f66783d78c36a5.tar.bz2 | |
gas/
2004-11-25 Jan Beulich <jbeulich@novell.com>
* config/tc-i386.c (optimize_imm): Adjust immediates to only those
permissible for the selected instruction suffix.
(process_suffix): For DefaultSize instructions, suppressing the
guessing of a 'q' suffix if the instruction doesn't support it is
pointless, because only an 'l' suffix can be guessed in this place.
gas/testsuite/
2004-11-25 Jan Beulich <jbeulich@novell.com>
* gas/i386/x86-64-inval.[sl]: Remove sahf/lahf.
include/opcode/
2004-11-25 Jan Beulich <jbeulich@novell.com>
* i386.h: CpuNo64 mov can't reasonably have a 'q' suffix. Moves
to/from test registers are illegal in 64-bit mode. Add missing
NoRex64 to sidt. fxsave/fxrstor now allow for a 'q' suffix
(previously one had to explicitly encode a rex64 prefix). Re-enable
lahf/sahf in 64-bit mode as at least some Athlon64/Opteron steppings
support it there. Add cmpxchg16b as per Intel's 64-bit documentation.
Diffstat (limited to 'include/opcode/i386.h')
| -rw-r--r-- | include/opcode/i386.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/opcode/i386.h b/include/opcode/i386.h index 1a88da4..bceedfc 100644 --- a/include/opcode/i386.h +++ b/include/opcode/i386.h @@ -85,7 +85,7 @@ static const template i386_optab[] = #define MOV_AX_DISP32 0xa0 /* In the 64bit mode the short form mov immediate is redefined to have 64bit displacement value. */ -{ "mov", 2, 0xa0, X, CpuNo64,bwlq_Suf|D|W, { Disp16|Disp32, Acc, 0 } }, +{ "mov", 2, 0xa0, X, CpuNo64,bwl_Suf|D|W, { Disp16|Disp32, Acc, 0 } }, { "mov", 2, 0x88, X, 0, bwlq_Suf|D|W|Modrm, { Reg, Reg|AnyMem, 0} }, /* In the 64bit mode the short form mov immediate is redefined to have 64bit displacement value. */ @@ -109,7 +109,7 @@ static const template i386_optab[] = { "mov", 2, 0x0f20, X, Cpu64, q_Suf|D|Modrm|IgnoreSize|NoRex64,{ Control, Reg64|InvMem, 0} }, { "mov", 2, 0x0f21, X, Cpu386|CpuNo64, l_Suf|D|Modrm|IgnoreSize,{ Debug, Reg32|InvMem, 0} }, { "mov", 2, 0x0f21, X, Cpu64, q_Suf|D|Modrm|IgnoreSize|NoRex64,{ Debug, Reg64|InvMem, 0} }, -{ "mov", 2, 0x0f24, X, Cpu386, l_Suf|D|Modrm|IgnoreSize, { Test, Reg32|InvMem, 0} }, +{ "mov", 2, 0x0f24, X, Cpu386|CpuNo64, l_Suf|D|Modrm|IgnoreSize, { Test, Reg32|InvMem, 0} }, { "movabs",2, 0xa0, X, Cpu64, bwlq_Suf|D|W, { Disp64, Acc, 0 } }, { "movabs",2, 0xb0, X, Cpu64, q_Suf|W|ShortForm, { Imm64, Reg64, 0 } }, @@ -219,8 +219,8 @@ static const template i386_optab[] = {"cli", 0, 0xfa, X, 0, NoSuf, { 0, 0, 0} }, {"clts", 0, 0x0f06, X, Cpu286, NoSuf, { 0, 0, 0} }, {"cmc", 0, 0xf5, X, 0, NoSuf, { 0, 0, 0} }, -{"lahf", 0, 0x9f, X, CpuNo64,NoSuf, { 0, 0, 0} }, -{"sahf", 0, 0x9e, X, CpuNo64,NoSuf, { 0, 0, 0} }, +{"lahf", 0, 0x9f, X, 0, NoSuf, { 0, 0, 0} }, +{"sahf", 0, 0x9e, X, 0, NoSuf, { 0, 0, 0} }, {"pushf", 0, 0x9c, X, CpuNo64,wl_Suf|DefaultSize, { 0, 0, 0} }, {"pushf", 0, 0x9c, X, Cpu64, wq_Suf|DefaultSize|NoRex64,{ 0, 0, 0} }, {"popf", 0, 0x9d, X, CpuNo64,wl_Suf|DefaultSize, { 0, 0, 0} }, @@ -578,7 +578,7 @@ static const template i386_optab[] = {"sgdt", 1, 0x0f01, 0, Cpu286|CpuNo64, wl_Suf|Modrm, { WordMem, 0, 0} }, {"sgdt", 1, 0x0f01, 0, Cpu64, q_Suf|Modrm|NoRex64, { LLongMem, 0, 0} }, {"sidt", 1, 0x0f01, 1, Cpu286|CpuNo64, wl_Suf|Modrm, { WordMem, 0, 0} }, -{"sidt", 1, 0x0f01, 1, Cpu64, q_Suf|Modrm, { LLongMem, 0, 0} }, +{"sidt", 1, 0x0f01, 1, Cpu64, q_Suf|Modrm|NoRex64, { LLongMem, 0, 0} }, {"sldt", 1, 0x0f00, 0, Cpu286, wlq_Suf|Modrm, { WordReg|InvMem, 0, 0} }, {"sldt", 1, 0x0f00, 0, Cpu286, w_Suf|Modrm|IgnoreSize,{ ShortMem, 0, 0} }, {"smsw", 1, 0x0f01, 4, Cpu286, wlq_Suf|Modrm, { WordReg|InvMem, 0, 0} }, @@ -912,8 +912,8 @@ static const template i386_optab[] = /* Pentium II/Pentium Pro extensions. */ {"sysenter",0, 0x0f34, X, Cpu686, NoSuf, { 0, 0, 0} }, {"sysexit", 0, 0x0f35, X, Cpu686, NoSuf, { 0, 0, 0} }, -{"fxsave", 1, 0x0fae, 0, Cpu686, FP|Modrm, { LLongMem, 0, 0} }, -{"fxrstor", 1, 0x0fae, 1, Cpu686, FP|Modrm, { LLongMem, 0, 0} }, +{"fxsave", 1, 0x0fae, 0, Cpu686, q_Suf|Modrm, { LLongMem, 0, 0} }, +{"fxrstor", 1, 0x0fae, 1, Cpu686, q_Suf|Modrm, { LLongMem, 0, 0} }, {"rdpmc", 0, 0x0f33, X, Cpu686, NoSuf, { 0, 0, 0} }, /* official undefined instr. */ {"ud2", 0, 0x0f0b, X, Cpu686, NoSuf, { 0, 0, 0} }, @@ -1316,6 +1316,7 @@ static const template i386_optab[] = {"addsubpd", 2, 0x660fd0, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, {"addsubps", 2, 0xf20fd0, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, +{"cmpxchg16b",1, 0x0fc7, 1, CpuPNI|Cpu64, NoSuf|Modrm|Rex64, { LLongMem, 0, 0} }, {"fisttp", 1, 0xdf, 1, CpuPNI, sl_FP|Modrm, { ShortMem|LongMem, 0, 0} }, {"fisttp", 1, 0xdd, 1, CpuPNI, q_FP|Modrm, { LLongMem, 0, 0} }, {"fisttpll", 1, 0xdd, 1, CpuPNI, FP|Modrm, { LLongMem, 0, 0} }, |