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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-08-11 14:37:14 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-08-11 14:37:32 -0700 |
| commit | d871f3f48388d57721d8077e281041ed16a745cf (patch) | |
| tree | 31db918f0c563c84b09de4674bb4af3548b1483c /opcodes/i386-opc.h | |
| parent | ab9e342807d132182892de1be1a92d6e91a5c1da (diff) | |
| download | gdb-d871f3f48388d57721d8077e281041ed16a745cf.zip gdb-d871f3f48388d57721d8077e281041ed16a745cf.tar.gz gdb-d871f3f48388d57721d8077e281041ed16a745cf.tar.bz2 | |
x86: Add CpuCMOV and CpuFXSR
There are separate CPUID feature bits for fxsave/fxrstor and cmovCC
instructions. This patch adds CpuCMOV and CpuFXSR to replace Cpu686
on corresponding instructions.
gas/
* config/tc-i386.c (cpu_arch): Add .cmov and .fxsr.
(cpu_noarch): Add nocmov and nofxsr.
* doc/c-i386.texi: Document cmov and fxsr.
opcodes/
* i386-gen.c (cpu_flag_init): Add CpuCMOV and CpuFXSR to
CPU_I686_FLAGS. Add CPU_CMOV_FLAGS, CPU_FXSR_FLAGS,
CPU_ANY_CMOV_FLAGS and CPU_ANY_FXSR_FLAGS.
(cpu_flags): Add CpuCMOV and CpuFXSR.
* i386-opc.tbl: Replace Cpu686 with CpuFXSR on fxsave, fxsave64,
fxrstor and fxrstor64. Replace Cpu686 with CpuCMOV on cmovCC.
* i386-init.h: Regenerated.
* i386-tbl.h: Likewise.
Diffstat (limited to 'opcodes/i386-opc.h')
| -rw-r--r-- | opcodes/i386-opc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h index ecfdc7f..3d0dd44 100644 --- a/opcodes/i386-opc.h +++ b/opcodes/i386-opc.h @@ -43,6 +43,10 @@ enum Cpu586, /* i686 or better required */ Cpu686, + /* CMOV Instruction support required */ + CpuCMOV, + /* FXSR Instruction support required */ + CpuFXSR, /* CLFLUSH Instruction support required */ CpuClflush, /* NOP Instruction support required */ @@ -262,6 +266,8 @@ typedef union i386_cpu_flags unsigned int cpui486:1; unsigned int cpui586:1; unsigned int cpui686:1; + unsigned int cpucmov:1; + unsigned int cpufxsr:1; unsigned int cpuclflush:1; unsigned int cpunop:1; unsigned int cpusyscall:1; |