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author | Gabe Black <gblack@eecs.umich.edu> | 2010-08-23 09:44:19 -0700 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2010-08-23 09:44:19 -0700 |
commit | 249549f9c3cc9317b1eeca8e844287dbbaf5f4ca (patch) | |
tree | febf73ee01e0e28fa890acf3de4db70e0a8fc549 /src/arch | |
parent | d43eb42d00a587405a512396c6524be95d5a6311 (diff) | |
download | gem5-249549f9c3cc9317b1eeca8e844287dbbaf5f4ca.tar.xz |
X86: Define a noop ExtMachInst.
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__ |