microregop.cc (4679:0b39fa8f5eb8) | microregop.cc (4688:82d7cbf0e66d) |
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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 * --- 42 unchanged lines hidden (view full) --- 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" | 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 * --- 42 unchanged lines hidden (view full) --- 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" |
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59#include <string> 60 61namespace X86ISA 62{ | 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) const 67 { 68 uint64_t flags = oldFlags & ~flagMask; 69 if(flagMask & CFBit && findCarry(dataSize, _dest, _src1, _src2)) 70 flags |= CFBit; 71 if(flagMask & PFBit && findParity(dataSize, _dest)) 72 flags |= PFBit; 73 if(flagMask & ECFBit && findCarry(dataSize, _dest, _src1, _src2)) 74 flags |= ECFBit; 75 if(flagMask & AFBit && findCarry(4, _dest, _src1, _src2)) 76 flags |= AFBit; 77 if(flagMask & EZFBit && findZero(dataSize, _dest)) 78 flags |= EZFBit; 79 if(flagMask & ZFBit && findZero(dataSize, _dest)) 80 flags |= ZFBit; 81 if(flagMask & SFBit && findNegative(dataSize, _dest)) 82 flags |= SFBit; 83 if(flagMask & OFBit && findOverflow(dataSize, _dest, _src1, _src2)) 84 flags |= OFBit; 85 return flags; 86 } 87 88 bool RegOpBase::checkCondition(uint64_t flags) const 89 { 90 CCFlagBits ccflags = flags; 91 switch(ext) 92 { 93 case ConditionTests::True: 94 return true; 95 case ConditionTests::ECF: 96 return ccflags.ECF; 97 case ConditionTests::EZF: 98 return ccflags.EZF; 99 case ConditionTests::SZnZF: 100 return !(!ccflags.EZF & ccflags.ZF); 101 case ConditionTests::MSTRZ: 102 panic("This condition is not implemented!"); 103 case ConditionTests::STRZ: 104 panic("This condition is not implemented!"); 105 case ConditionTests::MSTRC: 106 panic("This condition is not implemented!"); 107 case ConditionTests::STRZnZF: 108 panic("This condition is not implemented!"); 109 case ConditionTests::OF: 110 return ccflags.OF; 111 case ConditionTests::CF: 112 return ccflags.CF; 113 case ConditionTests::ZF: 114 return ccflags.ZF; 115 case ConditionTests::CvZF: 116 return ccflags.CF | ccflags.ZF; 117 case ConditionTests::SF: 118 return ccflags.SF; 119 case ConditionTests::PF: 120 return ccflags.PF; 121 case ConditionTests::SxOF: 122 return ccflags.SF ^ ccflags.OF; 123 case ConditionTests::SxOvZF: 124 return ccflags.SF ^ ccflags.OF | ccflags.ZF; 125 case ConditionTests::False: 126 return false; 127 case ConditionTests::NotECF: 128 return !ccflags.ECF; 129 case ConditionTests::NotEZF: 130 return !ccflags.EZF; 131 case ConditionTests::NotSZnZF: 132 return !ccflags.EZF & ccflags.ZF; 133 case ConditionTests::NotMSTRZ: 134 panic("This condition is not implemented!"); 135 case ConditionTests::NotSTRZ: 136 panic("This condition is not implemented!"); 137 case ConditionTests::NotMSTRC: 138 panic("This condition is not implemented!"); 139 case ConditionTests::NotSTRZnZF: 140 panic("This condition is not implemented!"); 141 case ConditionTests::NotOF: 142 return !ccflags.OF; 143 case ConditionTests::NotCF: 144 return !ccflags.CF; 145 case ConditionTests::NotZF: 146 return !ccflags.ZF; 147 case ConditionTests::NotCvZF: 148 return !(ccflags.CF | ccflags.ZF); 149 case ConditionTests::NotSF: 150 return !ccflags.SF; 151 case ConditionTests::NotPF: 152 return !ccflags.PF; 153 case ConditionTests::NotSxOF: 154 return !(ccflags.SF ^ ccflags.OF); 155 case ConditionTests::NotSxOvZF: 156 return !(ccflags.SF ^ ccflags.OF | ccflags.ZF); 157 } 158 panic("Unknown condition: %d\n", ext); 159 return true; 160 } 161 |
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63 std::string RegOp::generateDisassembly(Addr pc, 64 const SymbolTable *symtab) const 65 { 66 std::stringstream response; 67 68 printMnemonic(response, instMnem, mnemonic); 69 printReg(response, dest); 70 response << ", "; --- 19 unchanged lines hidden --- | 162 std::string RegOp::generateDisassembly(Addr pc, 163 const SymbolTable *symtab) const 164 { 165 std::stringstream response; 166 167 printMnemonic(response, instMnem, mnemonic); 168 printReg(response, dest); 169 response << ", "; --- 19 unchanged lines hidden --- |