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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-12-02 00:02:51 -0800 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-12-02 00:02:51 -0800 |
| commit | 5de71e39d87179102c1b6fbde5df1b703188bcf1 (patch) | |
| tree | 191551a99b174befbe9a1cdd8f81a8b792fb9869 /src/arch | |
| parent | 4c37f828f1486fe4942c75affee57d8056a17234 (diff) | |
| download | gem5-5de71e39d87179102c1b6fbde5df1b703188bcf1.tar.xz | |
X86: Make the 0xA0-0xA3 versions of mov use the right sized immediates.
--HG--
extra : convert_revision : a702403de29772618abb5bd5c5555279d91bdd59
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/data_transfer/move.py | 4 | ||||
| -rw-r--r-- | src/arch/x86/predecoder.cc | 5 |
2 files changed, 6 insertions, 3 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py index 069d1010e..3b8608c48 100644 --- a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py +++ b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py @@ -60,12 +60,12 @@ microcode = ''' # def macroop MOV_R_MI { - limm t1, imm + limm t1, imm, dataSize=asz ld reg, seg, [1, t0, t1] }; def macroop MOV_MI_R { - limm t1, imm + limm t1, imm, dataSize=asz st reg, seg, [1, t0, t1] }; diff --git a/src/arch/x86/predecoder.cc b/src/arch/x86/predecoder.cc index ace4a6b94..407a09ec0 100644 --- a/src/arch/x86/predecoder.cc +++ b/src/arch/x86/predecoder.cc @@ -270,7 +270,10 @@ namespace X86ISA //Figure out how big of an immediate we'll retreive based //on the opcode. int immType = ImmediateType[emi.opcode.num - 1][nextByte]; - immediateSize = SizeTypeToSize[logOpSize - 1][immType]; + if (emi.opcode.num == 1 && nextByte >= 0xA0 && nextByte <= 0xA3) + immediateSize = SizeTypeToSize[logAddrSize - 1][immType]; + else + immediateSize = SizeTypeToSize[logOpSize - 1][immType]; //Determine what to expect next if (UsesModRM[emi.opcode.num - 1][nextByte]) { |