1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * Redistribution and use of this software in source and binary forms, 6 * with or without modification, are permitted provided that the 7 * following conditions are met: 8 * 9 * The software must be used only for Non-Commercial Use which means any 10 * use which is NOT directed to receiving any direct monetary 11 * compensation for, or commercial advantage from such use. Illustrative 12 * examples of non-commercial use are academic research, personal study, 13 * teaching, education and corporate research & development. 14 * Illustrative examples of commercial use are distributing products for 15 * commercial advantage and providing services using the software for 16 * commercial advantage. 17 * 18 * If you wish to use this software or functionality therein that may be 19 * covered by patents for commercial use, please contact: 20 * Director of Intellectual Property Licensing 21 * Office of Strategy and Technology 22 * Hewlett-Packard Company 23 * 1501 Page Mill Road 24 * Palo Alto, California 94304 25 * 26 * Redistributions of source code must retain the above copyright notice, 27 * this list of conditions and the following disclaimer. Redistributions 28 * in binary form must reproduce the above copyright notice, this list of 29 * conditions and the following disclaimer in the documentation and/or 30 * other materials provided with the distribution. Neither the name of 31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 32 * contributors may be used to endorse or promote products derived from 33 * this software without specific prior written permission. No right of 34 * sublicense is granted herewith. Derivatives of the software and 35 * output created using the software may be prepared, but only for 36 * Non-Commercial Uses. Derivatives of the software may be shared with 37 * others provided: (i) the others agree to abide by the list of 38 * conditions herein which includes the Non-Commercial Use restrictions; 39 * and (ii) such Derivatives of the software include the above copyright 40 * notice to acknowledge the contribution from this software where 41 * applicable, this list of conditions and the disclaimer below. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 54 * 55 * Authors: Gabe Black 56 */ 57 58#include "arch/x86/insts/microregop.hh" 59#include "arch/x86/miscregs.hh" 60#include "base/condcodes.hh" 61#include <string> 62 63namespace X86ISA 64{ 65 uint64_t RegOpBase::genFlags(uint64_t oldFlags, uint64_t flagMask, 66 uint64_t _dest, uint64_t _src1, uint64_t _src2, 67 bool subtract) const 68 { 69 DPRINTF(Sparc, "flagMask = %#x\n", flagMask); 70 uint64_t flags = oldFlags & ~flagMask; 71 if(flagMask & CFBit) 72 if(findCarry(dataSize*8, _dest, _src1, _src2)) 73 flags |= CFBit; 74 if(subtract) 75 flags ^= CFBit; 76 if(flagMask & PFBit && findParity(dataSize*8, _dest)) 77 flags |= PFBit; 78 if(flagMask & ECFBit && findCarry(dataSize*8, _dest, _src1, _src2)) 79 flags |= ECFBit; 80 if(flagMask & AFBit) 81 if(findCarry(4, _dest, _src1, _src2)) 82 flags |= AFBit; 83 if(subtract) 84 flags ^= AFBit; 85 if(flagMask & EZFBit && findZero(dataSize*8, _dest)) 86 flags |= EZFBit; 87 if(flagMask & ZFBit && findZero(dataSize*8, _dest)) 88 flags |= ZFBit; 89 if(flagMask & SFBit && findNegative(dataSize*8, _dest)) 90 flags |= SFBit; 91 if(flagMask & OFBit && findOverflow(dataSize*8, _dest, _src1, _src2)) 92 flags |= OFBit; 93 return flags; 94 } 95 96 bool RegOpBase::checkCondition(uint64_t flags) const 97 { 98 CCFlagBits ccflags = flags; 99 switch(ext) 100 { 101 case ConditionTests::True: 102 return true; 103 case ConditionTests::ECF: 104 return ccflags.ECF; 105 case ConditionTests::EZF: 106 return ccflags.EZF; 107 case ConditionTests::SZnZF: 108 return !(!ccflags.EZF & ccflags.ZF); 109 case ConditionTests::MSTRZ: 110 panic("This condition is not implemented!"); 111 case ConditionTests::STRZ: 112 panic("This condition is not implemented!"); 113 case ConditionTests::MSTRC: 114 panic("This condition is not implemented!");
| 1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * Redistribution and use of this software in source and binary forms, 6 * with or without modification, are permitted provided that the 7 * following conditions are met: 8 * 9 * The software must be used only for Non-Commercial Use which means any 10 * use which is NOT directed to receiving any direct monetary 11 * compensation for, or commercial advantage from such use. Illustrative 12 * examples of non-commercial use are academic research, personal study, 13 * teaching, education and corporate research & development. 14 * Illustrative examples of commercial use are distributing products for 15 * commercial advantage and providing services using the software for 16 * commercial advantage. 17 * 18 * If you wish to use this software or functionality therein that may be 19 * covered by patents for commercial use, please contact: 20 * Director of Intellectual Property Licensing 21 * Office of Strategy and Technology 22 * Hewlett-Packard Company 23 * 1501 Page Mill Road 24 * Palo Alto, California 94304 25 * 26 * Redistributions of source code must retain the above copyright notice, 27 * this list of conditions and the following disclaimer. Redistributions 28 * in binary form must reproduce the above copyright notice, this list of 29 * conditions and the following disclaimer in the documentation and/or 30 * other materials provided with the distribution. Neither the name of 31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 32 * contributors may be used to endorse or promote products derived from 33 * this software without specific prior written permission. No right of 34 * sublicense is granted herewith. Derivatives of the software and 35 * output created using the software may be prepared, but only for 36 * Non-Commercial Uses. Derivatives of the software may be shared with 37 * others provided: (i) the others agree to abide by the list of 38 * conditions herein which includes the Non-Commercial Use restrictions; 39 * and (ii) such Derivatives of the software include the above copyright 40 * notice to acknowledge the contribution from this software where 41 * applicable, this list of conditions and the disclaimer below. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 54 * 55 * Authors: Gabe Black 56 */ 57 58#include "arch/x86/insts/microregop.hh" 59#include "arch/x86/miscregs.hh" 60#include "base/condcodes.hh" 61#include <string> 62 63namespace X86ISA 64{ 65 uint64_t RegOpBase::genFlags(uint64_t oldFlags, uint64_t flagMask, 66 uint64_t _dest, uint64_t _src1, uint64_t _src2, 67 bool subtract) const 68 { 69 DPRINTF(Sparc, "flagMask = %#x\n", flagMask); 70 uint64_t flags = oldFlags & ~flagMask; 71 if(flagMask & CFBit) 72 if(findCarry(dataSize*8, _dest, _src1, _src2)) 73 flags |= CFBit; 74 if(subtract) 75 flags ^= CFBit; 76 if(flagMask & PFBit && findParity(dataSize*8, _dest)) 77 flags |= PFBit; 78 if(flagMask & ECFBit && findCarry(dataSize*8, _dest, _src1, _src2)) 79 flags |= ECFBit; 80 if(flagMask & AFBit) 81 if(findCarry(4, _dest, _src1, _src2)) 82 flags |= AFBit; 83 if(subtract) 84 flags ^= AFBit; 85 if(flagMask & EZFBit && findZero(dataSize*8, _dest)) 86 flags |= EZFBit; 87 if(flagMask & ZFBit && findZero(dataSize*8, _dest)) 88 flags |= ZFBit; 89 if(flagMask & SFBit && findNegative(dataSize*8, _dest)) 90 flags |= SFBit; 91 if(flagMask & OFBit && findOverflow(dataSize*8, _dest, _src1, _src2)) 92 flags |= OFBit; 93 return flags; 94 } 95 96 bool RegOpBase::checkCondition(uint64_t flags) const 97 { 98 CCFlagBits ccflags = flags; 99 switch(ext) 100 { 101 case ConditionTests::True: 102 return true; 103 case ConditionTests::ECF: 104 return ccflags.ECF; 105 case ConditionTests::EZF: 106 return ccflags.EZF; 107 case ConditionTests::SZnZF: 108 return !(!ccflags.EZF & ccflags.ZF); 109 case ConditionTests::MSTRZ: 110 panic("This condition is not implemented!"); 111 case ConditionTests::STRZ: 112 panic("This condition is not implemented!"); 113 case ConditionTests::MSTRC: 114 panic("This condition is not implemented!");
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149 case ConditionTests::NotOF: 150 return !ccflags.OF; 151 case ConditionTests::NotCF: 152 return !ccflags.CF; 153 case ConditionTests::NotZF: 154 return !ccflags.ZF; 155 case ConditionTests::NotCvZF: 156 return !(ccflags.CF | ccflags.ZF); 157 case ConditionTests::NotSF: 158 return !ccflags.SF; 159 case ConditionTests::NotPF: 160 return !ccflags.PF; 161 case ConditionTests::NotSxOF: 162 return !(ccflags.SF ^ ccflags.OF); 163 case ConditionTests::NotSxOvZF: 164 return !(ccflags.SF ^ ccflags.OF | ccflags.ZF); 165 } 166 panic("Unknown condition: %d\n", ext); 167 return true; 168 } 169 170 std::string RegOp::generateDisassembly(Addr pc, 171 const SymbolTable *symtab) const 172 { 173 std::stringstream response; 174 175 printMnemonic(response, instMnem, mnemonic); 176 printDestReg(response, 0, dataSize); 177 response << ", "; 178 printSrcReg(response, 0, dataSize); 179 response << ", "; 180 printSrcReg(response, 1, dataSize); 181 return response.str(); 182 } 183 184 std::string RegOpImm::generateDisassembly(Addr pc, 185 const SymbolTable *symtab) const 186 { 187 std::stringstream response; 188 189 printMnemonic(response, instMnem, mnemonic); 190 printDestReg(response, 0, dataSize); 191 response << ", "; 192 printSrcReg(response, 0, dataSize); 193 ccprintf(response, ", %#x", imm8); 194 return response.str(); 195 } 196}
| 151 case ConditionTests::NotOF: 152 return !ccflags.OF; 153 case ConditionTests::NotCF: 154 return !ccflags.CF; 155 case ConditionTests::NotZF: 156 return !ccflags.ZF; 157 case ConditionTests::NotCvZF: 158 return !(ccflags.CF | ccflags.ZF); 159 case ConditionTests::NotSF: 160 return !ccflags.SF; 161 case ConditionTests::NotPF: 162 return !ccflags.PF; 163 case ConditionTests::NotSxOF: 164 return !(ccflags.SF ^ ccflags.OF); 165 case ConditionTests::NotSxOvZF: 166 return !(ccflags.SF ^ ccflags.OF | ccflags.ZF); 167 } 168 panic("Unknown condition: %d\n", ext); 169 return true; 170 } 171 172 std::string RegOp::generateDisassembly(Addr pc, 173 const SymbolTable *symtab) const 174 { 175 std::stringstream response; 176 177 printMnemonic(response, instMnem, mnemonic); 178 printDestReg(response, 0, dataSize); 179 response << ", "; 180 printSrcReg(response, 0, dataSize); 181 response << ", "; 182 printSrcReg(response, 1, dataSize); 183 return response.str(); 184 } 185 186 std::string RegOpImm::generateDisassembly(Addr pc, 187 const SymbolTable *symtab) const 188 { 189 std::stringstream response; 190 191 printMnemonic(response, instMnem, mnemonic); 192 printDestReg(response, 0, dataSize); 193 response << ", "; 194 printSrcReg(response, 0, dataSize); 195 ccprintf(response, ", %#x", imm8); 196 return response.str(); 197 } 198}
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