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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-08-17 20:15:16 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-08-17 20:15:16 -0700 |
| commit | 45bae0c70f43dc04ccf485e2ea54b892a072cb0c (patch) | |
| tree | 8cdc6954ef9c853b85e4d25d03a93f98e951d9c8 /src/arch/x86/isa/decoder | |
| parent | 200fed31de52ec783006bb1d7c1dbcc4112e7fb3 (diff) | |
| download | gem5-45bae0c70f43dc04ccf485e2ea54b892a072cb0c.tar.xz | |
X86: Implement the multiply and add instructions.
Diffstat (limited to 'src/arch/x86/isa/decoder')
| -rw-r--r-- | src/arch/x86/isa/decoder/two_byte_opcodes.isa | 60 |
1 files changed, 29 insertions, 31 deletions
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa index cb57bf9f0..d136fcbce 100644 --- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa @@ -1062,38 +1062,36 @@ } default: UD2(); } - } - 0x1E: decode LEGACY_DECODEVAL { - // no prefix - 0x0: decode OPCODE_OP_BOTTOM3 { - 0x1: Inst::PSLLW(Pq,Qq); - 0x2: Inst::PSLLD(Pq,Qq); - 0x3: Inst::PSLLQ(Pq,Qq); - 0x4: Inst::PMULUDQ(Pq,Qq); - 0x5: pmaddwd_Pq_Qq(); - 0x6: Inst::PSADBW(Pq,Qq); - 0x7: maskmovq_Pq_PRq(); - default: Inst::UD2(); - } - // operand size (0x66) - 0x1: decode OPCODE_OP_BOTTOM3 { - 0x1: Inst::PSLLW(Vo,Wo); - 0x2: Inst::PSLLD(Vo,Wo); - 0x3: Inst::PSLLQ(Vo,Wo); - 0x4: Inst::PMULUDQ(Vo,Wo); - 0x5: pmaddwd_Vo_Wo(); - 0x6: Inst::PSADBW(Vo,Wo); - 0x7: maskmovdqu_Vo_VRo(); - default: Inst::UD2(); - } - // repne (0xF2) - 0x8: decode OPCODE_OP_BOTTOM3 { - 0x0: lddqu_Vo_Mo(); - default: Inst::UD2(); + 0x1E: decode LEGACY_DECODEVAL { + // no prefix + 0x0: decode OPCODE_OP_BOTTOM3 { + 0x1: PSLLW(Pq,Qq); + 0x2: PSLLD(Pq,Qq); + 0x3: PSLLQ(Pq,Qq); + 0x4: PMULUDQ(Pq,Qq); + 0x5: PMADDWD(Pq,Qq); + 0x6: PSADBW(Pq,Qq); + 0x7: WarnUnimpl::maskmovq_Pq_PRq(); + default: UD2(); + } + // operand size (0x66) + 0x1: decode OPCODE_OP_BOTTOM3 { + 0x1: PSLLW(Vo,Wo); + 0x2: PSLLD(Vo,Wo); + 0x3: PSLLQ(Vo,Wo); + 0x4: PMULUDQ(Vo,Wo); + 0x5: PMADDWD(Vo,Wo); + 0x6: PSADBW(Vo,Wo); + 0x7: WarnUnimpl::maskmovdqu_Vo_VRo(); + default: UD2(); + } + // repne (0xF2) + 0x8: decode OPCODE_OP_BOTTOM3 { + 0x0: WarnUnimpl::lddqu_Vo_Mo(); + default: UD2(); + } + default: UD2(); } - default: Inst::UD2(); - } - format Inst { 0x1F: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { |