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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-07-20 14:57:04 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-07-20 14:57:04 -0700 |
| commit | 5d882984d197e8edc59678d6699c9e205cd77a89 (patch) | |
| tree | f30fedb3db3da8416b971f78c8d5a13c36a2cf5c /src/arch/x86 | |
| parent | dcfaa348b190c97a2476b0e9c099160c8c1e0202 (diff) | |
| download | gem5-5d882984d197e8edc59678d6699c9e205cd77a89.tar.xz | |
Add a bitfield to decode based on what prefixes are used.
--HG--
extra : convert_revision : 7ff4998b3249ccfe86ae9cbcc63fb910683707f5
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/isa/bitfields.isa | 3 | ||||
| -rw-r--r-- | src/arch/x86/types.hh | 5 |
2 files changed, 5 insertions, 3 deletions
diff --git a/src/arch/x86/isa/bitfields.isa b/src/arch/x86/isa/bitfields.isa index 8707bbb4c..43fee5fef 100644 --- a/src/arch/x86/isa/bitfields.isa +++ b/src/arch/x86/isa/bitfields.isa @@ -67,11 +67,12 @@ def bitfield REX_B rex.b; //Legacy prefixes def bitfield LEGACY legacy; +def bitfield LEGACY_DECODEVAL legacy.decodeVal; def bitfield LEGACY_REPNE legacy.repne; def bitfield LEGACY_REP legacy.rep; def bitfield LEGACY_LOCK legacy.lock; -def bitfield LEGACY_ADDR legacy.addr; def bitfield LEGACY_OP legacy.op; +def bitfield LEGACY_ADDR legacy.addr; def bitfield LEGACY_SEG legacy.seg; // Pieces of the opcode diff --git a/src/arch/x86/types.hh b/src/arch/x86/types.hh index 9d927679d..a509ff57a 100644 --- a/src/arch/x86/types.hh +++ b/src/arch/x86/types.hh @@ -86,11 +86,12 @@ namespace X86ISA }; BitUnion8(LegacyPrefixVector) + Bitfield<7, 4> decodeVal; Bitfield<7> repne; Bitfield<6> rep; Bitfield<5> lock; - Bitfield<4> addr; - Bitfield<3> op; + Bitfield<4> op; + Bitfield<3> addr; //There can be only one segment override, so they share the //first 3 bits in the legacyPrefixes bitfield. Bitfield<2,0> seg; |