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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-09-04 23:23:13 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-09-04 23:23:13 -0700 |
| commit | aaee21afdb39ed1fe02546acfca780881e07d813 (patch) | |
| tree | ab6e0f04af881c23cbcc0e7e552a83f786fcc1cb /src/arch/x86/isa/decoder | |
| parent | b0b4038ee985bcd1d677f464d71812fb9827c9ce (diff) | |
| download | gem5-aaee21afdb39ed1fe02546acfca780881e07d813.tar.xz | |
X86: Implement idiv and propogate the mul corner case fix.
--HG--
extra : convert_revision : 348aa081067728afa14dc5b609fc7e26dbc5fad5
Diffstat (limited to 'src/arch/x86/isa/decoder')
| -rw-r--r-- | src/arch/x86/isa/decoder/one_byte_opcodes.isa | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa index d8db47063..ecb92947f 100644 --- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa @@ -504,28 +504,30 @@ {{"Tried to execute the rep/repe prefix!"}}); 0x4: hlt(); 0x5: cmc(); - //0x6: group3_Eb(); - 0x6: decode MODRM_REG { - 0x0: Inst::TEST(Eb,Iz); - 0x1: Inst::TEST(Eb,Iz); - 0x2: Inst::NOT(Eb); - 0x3: Inst::NEG(Eb); - 0x4: Inst::MUL_B(Eb); - 0x5: Inst::IMUL_B(Eb); - //This should be Eb, but it access the entire word value ax. - 0x6: Inst::DIV_B(Ew); - 0x7: idiv_Eb(); - } - //0x7: group3_Ev(); - 0x7: decode MODRM_REG { - 0x0: Inst::TEST(Ev,Iz); - 0x1: Inst::TEST(Ev,Iz); - 0x2: Inst::NOT(Ev); - 0x3: Inst::NEG(Ev); - 0x4: Inst::MUL(Ev); - 0x5: Inst::IMUL(Ev); - 0x6: Inst::DIV(Ev); - 0x7: idiv_Ev(); + format Inst { + //0x6: group3_Eb(); + 0x6: decode MODRM_REG { + 0x0: TEST(Eb,Iz); + 0x1: TEST(Eb,Iz); + 0x2: NOT(Eb); + 0x3: NEG(Eb); + 0x4: MUL_B(Eb); + 0x5: IMUL_B(Eb); + //This should be Eb, but it access the entire word value ax. + 0x6: DIV_B(Ew); + 0x7: IDIV(Eb); + } + //0x7: group3_Ev(); + 0x7: decode MODRM_REG { + 0x0: TEST(Ev,Iz); + 0x1: TEST(Ev,Iz); + 0x2: NOT(Ev); + 0x3: NEG(Ev); + 0x4: MUL(Ev); + 0x5: IMUL(Ev); + 0x6: DIV(Ev); + 0x7: IDIV(Ev); + } } } 0x1F: decode OPCODE_OP_BOTTOM3 { |