diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/isa_traits.hh | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/arch/x86/isa_traits.hh b/src/arch/x86/isa_traits.hh index c1036ac01..f67b58788 100644 --- a/src/arch/x86/isa_traits.hh +++ b/src/arch/x86/isa_traits.hh @@ -74,6 +74,18 @@ namespace X86ISA // Memory accesses can be unaligned const bool HasUnalignedMemAcc = true; + + const ExtMachInst NoopMachInst = { + 0x0, // No legacy prefixes. + 0x0, // No rex prefix. + { 1, 0x0, 0x0, 0x90 }, // One opcode byte, 0x90. + 0x0, 0x0, // No modrm or sib. + 0, 0, // No immediate or displacement. + 8, 8, 8, // All sizes are 8. + 0, // Displacement size is 0. + SixtyFourBitMode // Behave as if we're in 64 bit + // mode (this doesn't actually matter). + }; }; #endif // __ARCH_X86_ISATRAITS_HH__ |