diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/ChangeLog | 5 | ||||
| -rw-r--r-- | include/opcode/i386.h | 16 |
2 files changed, 18 insertions, 3 deletions
diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog index c9a4a1257d0..b257be46a27 100644 --- a/include/opcode/ChangeLog +++ b/include/opcode/ChangeLog @@ -1,3 +1,8 @@ +2005-12-06 H.J. Lu <hongjiu.lu@intel.com> + + PR gas/1874 + * i386.h (i386_optab): Add 64bit support for monitor and mwait. + 2005-11-14 David Ung <davidu@mips.com> * mips.h: Assign 'm'/'M' codes to MIPS16e save/restore diff --git a/include/opcode/i386.h b/include/opcode/i386.h index 59b5e3c33e9..33f94cc6287 100644 --- a/include/opcode/i386.h +++ b/include/opcode/i386.h @@ -1346,14 +1346,24 @@ static const template i386_optab[] = {"hsubps", 2, 0xf20f7d, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, {"lddqu", 2, 0xf20ff0, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { LLongMem, RegXMM, 0 } }, {"monitor", 0, 0x0f01, 0xc8, CpuPNI, NoSuf|ImmExt, { 0, 0, 0} }, -/* Need to ensure only "monitor %eax,%ecx,%edx" is accepted. */ -{"monitor", 3, 0x0f01, 0xc8, CpuPNI, NoSuf|ImmExt, { Reg32, Reg32, Reg32} }, +/* monitor is very special. CX and DX are always 64bits with zero upper + 32bits in 64bit mode, and 32bits in 16bit and 32bit modes. The + address size override prefix can be used to overrride the AX size in + all modes. */ +/* Need to ensure only "monitor %eax/%ax,%ecx,%edx" is accepted. */ +{"monitor", 3, 0x0f01, 0xc8, CpuPNI|CpuNo64, NoSuf|ImmExt, { Reg16|Reg32, Reg32, Reg32 } }, +/* Need to ensure only "monitor %rax/%eax,%rcx,%rdx" is accepted. */ +{"monitor", 3, 0x0f01, 0xc8, CpuPNI|Cpu64, NoSuf|ImmExt|NoRex64, { Reg32|Reg64, Reg64, Reg64 } }, {"movddup", 2, 0xf20f12, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, {"movshdup", 2, 0xf30f16, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, {"movsldup", 2, 0xf30f12, X, CpuPNI, NoSuf|IgnoreSize|Modrm, { RegXMM|LLongMem, RegXMM, 0 } }, {"mwait", 0, 0x0f01, 0xc9, CpuPNI, NoSuf|ImmExt, { 0, 0, 0} }, +/* mwait is very special. AX and CX are always 64bits with zero upper + 32bits in 64bit mode, and 32bits in 16bit and 32bit modes. */ /* Need to ensure only "mwait %eax,%ecx" is accepted. */ -{"mwait", 2, 0x0f01, 0xc9, CpuPNI, NoSuf|ImmExt, { Reg32, Reg32, 0} }, +{"mwait", 2, 0x0f01, 0xc9, CpuPNI|CpuNo64, NoSuf|ImmExt, { Reg32, Reg32, 0} }, +/* Need to ensure only "mwait %rax,%rcx" is accepted. */ +{"mwait", 2, 0x0f01, 0xc9, CpuPNI|Cpu64, NoSuf|ImmExt|NoRex64, { Reg64, Reg64, 0} }, /* VMX instructions. */ {"vmcall", 0, 0x0f01, 0xc1, CpuVMX, NoSuf|ImmExt, { 0, 0, 0} }, |