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Diffstat (limited to 'src/arch/x86/isa/decoder/locked_opcodes.isa')
| -rw-r--r-- | src/arch/x86/isa/decoder/locked_opcodes.isa | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/arch/x86/isa/decoder/locked_opcodes.isa b/src/arch/x86/isa/decoder/locked_opcodes.isa new file mode 100644 index 000000000..b16fbff04 --- /dev/null +++ b/src/arch/x86/isa/decoder/locked_opcodes.isa @@ -0,0 +1,199 @@ +// Copyright (c) 2007-2008 The Hewlett-Packard Development Company +// All rights reserved. +// +// Redistribution and use of this software in source and binary forms, +// with or without modification, are permitted provided that the +// following conditions are met: +// +// The software must be used only for Non-Commercial Use which means any +// use which is NOT directed to receiving any direct monetary +// compensation for, or commercial advantage from such use. Illustrative +// examples of non-commercial use are academic research, personal study, +// teaching, education and corporate research & development. +// Illustrative examples of commercial use are distributing products for +// commercial advantage and providing services using the software for +// commercial advantage. +// +// If you wish to use this software or functionality therein that may be +// covered by patents for commercial use, please contact: +// Director of Intellectual Property Licensing +// Office of Strategy and Technology +// Hewlett-Packard Company +// 1501 Page Mill Road +// Palo Alto, California 94304 +// +// Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. Redistributions +// in binary form must reproduce the above copyright notice, this list of +// conditions and the following disclaimer in the documentation and/or +// other materials provided with the distribution. Neither the name of +// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. No right of +// sublicense is granted herewith. Derivatives of the software and +// output created using the software may be prepared, but only for +// Non-Commercial Uses. Derivatives of the software may be shared with +// others provided: (i) the others agree to abide by the list of +// conditions herein which includes the Non-Commercial Use restrictions; +// and (ii) such Derivatives of the software include the above copyright +// notice to acknowledge the contribution from this software where +// applicable, this list of conditions and the disclaimer below. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Authors: Gabe Black + +//////////////////////////////////////////////////////////////////// +// +// Decode opcodes with the lock prefix. Opcodes which shouldn't have that +// prefix should effectively decode to UD2. +// + +// All the memory references in these instructions happen through modrm bytes. +// We therefore only need to make sure the modrm byte encodes a memory +// reference to make sure these are the memory forms of these instructions. +0x1: decode MODRM_MOD { + format Inst { + 0x3: UD2(); + default: decode OPCODE_NUM { + 0x1: decode OPCODE_OP_TOP5 { + 0x00: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::ADD_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x01: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::OR_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x02: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::ADC_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x03: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::SBB_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x04: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::AND_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x05: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::SUB_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x06: decode OPCODE_OP_BOTTOM3 { + default: MultiInst::XOR_LOCKED(OPCODE_OP_BOTTOM3, + [Mb,Gb], [Mv,Gv]); + } + 0x10: decode OPCODE_OP_BOTTOM3 { + 0x0: decode MODRM_REG { + 0x0: ADD_LOCKED(Mb,Ib); + 0x1: OR_LOCKED(Mb,Ib); + 0x2: ADC_LOCKED(Mb,Ib); + 0x3: SBB_LOCKED(Mb,Ib); + 0x4: AND_LOCKED(Mb,Ib); + 0x5: SUB_LOCKED(Mb,Ib); + 0x6: XOR_LOCKED(Mb,Ib); + } + 0x1: decode MODRM_REG { + 0x0: ADD_LOCKED(Mv,Iz); + 0x1: OR_LOCKED(Mv,Iz); + 0x2: ADC_LOCKED(Mv,Iz); + 0x3: SBB_LOCKED(Mv,Iz); + 0x4: AND_LOCKED(Mv,Iz); + 0x5: SUB_LOCKED(Mv,Iz); + 0x6: XOR_LOCKED(Mv,Iz); + } + 0x2: decode MODE_SUBMODE { + 0x0: UD2(); + default: decode MODRM_REG { + 0x0: ADD_LOCKED(Mb,Ib); + 0x1: OR_LOCKED(Mb,Ib); + 0x2: ADC_LOCKED(Mb,Ib); + 0x3: SBB_LOCKED(Mb,Ib); + 0x4: AND_LOCKED(Mb,Ib); + 0x5: SUB_LOCKED(Mb,Ib); + 0x6: XOR_LOCKED(Mb,Ib); + } + } + //0x3: group1_Ev_Ib(); + 0x3: decode MODRM_REG { + 0x0: ADD_LOCKED(Mv,Ib); + 0x1: OR_LOCKED(Mv,Ib); + 0x2: ADC_LOCKED(Mv,Ib); + 0x3: SBB_LOCKED(Mv,Ib); + 0x4: AND_LOCKED(Mv,Ib); + 0x5: SUB_LOCKED(Mv,Ib); + 0x6: XOR_LOCKED(Mv,Ib); + } + 0x6: XCHG_LOCKED(Mb,Gb); + 0x7: XCHG_LOCKED(Mv,Gv); + } + 0x1E: decode OPCODE_OP_BOTTOM3 { + //0x6: group3_Eb(); + 0x6: decode MODRM_REG { + 0x2: NOT_LOCKED(Mb); + 0x3: NEG_LOCKED(Mb); + } + //0x7: group3_Ev(); + 0x7: decode MODRM_REG { + 0x2: NOT_LOCKED(Mv); + 0x3: NEG_LOCKED(Mv); + } + } + 0x1F: decode OPCODE_OP_BOTTOM3 { + 0x6: decode MODRM_REG { + 0x0: INC_LOCKED(Mb); + 0x1: DEC_LOCKED(Mb); + default: UD2(); + } + //0x7: group5(); + 0x7: decode MODRM_REG { + 0x0: INC_LOCKED(Mv); + 0x1: DEC_LOCKED(Mv); + } + } + } + 0x2: decode OPCODE_PREFIXA { + 0x0F: decode OPCODE_OP_TOP5 { + 0x15: decode OPCODE_OP_BOTTOM3 { + 0x3: BTS_LOCKED(Mv,Gv); + } + 0x16: decode OPCODE_OP_BOTTOM3 { + 0x0: CMPXCHG_LOCKED(Mb,Gb); + 0x1: CMPXCHG_LOCKED(Mv,Gv); + 0x3: BTR_LOCKED(Mv,Gv); + } + 0x17: decode OPCODE_OP_BOTTOM3 { + 0x2: decode MODRM_REG { + 0x5: BTS_LOCKED(Mv,Ib); + 0x6: BTR_LOCKED(Mv,Ib); + 0x7: BTC_LOCKED(Mv,Ib); + } + 0x3: BTC_LOCKED(Mv,Gv); + } + 0x18: decode OPCODE_OP_BOTTOM3 { + 0x0: XADD_LOCKED(Mb,Gb); + 0x1: XADD_LOCKED(Mv,Gv); + //0x7: group9(); + 0x7: decode MODRM_REG { + 0x1: WarnUnimpl::cmpxchg_Mq_LOCKED(); + } + } + } + default: M5InternalError::error( + {{"Unexpected first opcode byte in two byte opcode!"}}); + } + } + } +} |