static_inst.cc revision 5202:ff56fa8c2091
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/static_inst.hh" 59 60namespace X86ISA 61{ 62 void X86StaticInst::printMnemonic(std::ostream &os, 63 const char * mnemonic) const 64 { 65 ccprintf(os, "\t%s ", mnemonic); 66 } 67 68 void X86StaticInst::printMnemonic(std::ostream &os, 69 const char * instMnemonic, const char * mnemonic) const 70 { 71 ccprintf(os, "\t%s : %s ", instMnemonic, mnemonic); 72 } 73 74 void X86StaticInst::printSegment(std::ostream &os, int segment) const 75 { 76 switch (segment) 77 { 78 case 0: 79 ccprintf(os, "ES"); 80 break; 81 case 1: 82 ccprintf(os, "CS"); 83 break; 84 case 2: 85 ccprintf(os, "SS"); 86 break; 87 case 3: 88 ccprintf(os, "DS"); 89 break; 90 case 4: 91 ccprintf(os, "FS"); 92 break; 93 case 5: 94 ccprintf(os, "GS"); 95 break; 96 default: 97 panic("Unrecognized segment %d\n", segment); 98 } 99 } 100 101 void 102 X86StaticInst::printSrcReg(std::ostream &os, int reg, int size) const 103 { 104 if(_numSrcRegs > reg) 105 printReg(os, _srcRegIdx[reg], size); 106 } 107 108 void 109 X86StaticInst::printDestReg(std::ostream &os, int reg, int size) const 110 { 111 if(_numDestRegs > reg) 112 printReg(os, _destRegIdx[reg], size); 113 } 114 115 void 116 X86StaticInst::printReg(std::ostream &os, int reg, int size) const 117 { 118 assert(size == 1 || size == 2 || size == 4 || size == 8); 119 static const char * abcdFormats[9] = 120 {"", "%s", "%sx", "", "e%sx", "", "", "", "r%sx"}; 121 static const char * piFormats[9] = 122 {"", "%s", "%s", "", "e%s", "", "", "", "r%s"}; 123 static const char * longFormats[9] = 124 {"", "r%sb", "r%sw", "", "r%sd", "", "", "", "r%s"}; 125 static const char * microFormats[9] = 126 {"", "t%db", "t%dw", "", "t%dd", "", "", "", "t%d"}; 127 128 if (reg < FP_Base_DepTag) { 129 const char * suffix = ""; 130 bool fold = reg & (1 << 6); 131 reg &= ~(1 << 6); 132 133 if(fold) 134 { 135 suffix = "h"; 136 reg -= 4; 137 } 138 else if(reg < 8 && size == 1) 139 suffix = "l"; 140 141 switch (reg) { 142 case INTREG_RAX: 143 ccprintf(os, abcdFormats[size], "a"); 144 break; 145 case INTREG_RBX: 146 ccprintf(os, abcdFormats[size], "b"); 147 break; 148 case INTREG_RCX: 149 ccprintf(os, abcdFormats[size], "c"); 150 break; 151 case INTREG_RDX: 152 ccprintf(os, abcdFormats[size], "d"); 153 break; 154 case INTREG_RSP: 155 ccprintf(os, piFormats[size], "sp"); 156 break; 157 case INTREG_RBP: 158 ccprintf(os, piFormats[size], "bp"); 159 break; 160 case INTREG_RSI: 161 ccprintf(os, piFormats[size], "si"); 162 break; 163 case INTREG_RDI: 164 ccprintf(os, piFormats[size], "di"); 165 break; 166 case INTREG_R8W: 167 ccprintf(os, longFormats[size], "8"); 168 break; 169 case INTREG_R9W: 170 ccprintf(os, longFormats[size], "9"); 171 break; 172 case INTREG_R10W: 173 ccprintf(os, longFormats[size], "10"); 174 break; 175 case INTREG_R11W: 176 ccprintf(os, longFormats[size], "11"); 177 break; 178 case INTREG_R12W: 179 ccprintf(os, longFormats[size], "12"); 180 break; 181 case INTREG_R13W: 182 ccprintf(os, longFormats[size], "13"); 183 break; 184 case INTREG_R14W: 185 ccprintf(os, longFormats[size], "14"); 186 break; 187 case INTREG_R15W: 188 ccprintf(os, longFormats[size], "15"); 189 break; 190 default: 191 ccprintf(os, microFormats[size], reg - NUM_INTREGS); 192 } 193 ccprintf(os, suffix); 194 } else if (reg < Ctrl_Base_DepTag) { 195 int fpindex = reg - FP_Base_DepTag; 196 if(fpindex < NumMMXRegs) { 197 ccprintf(os, "%%mmx%d", reg - FP_Base_DepTag); 198 return; 199 } 200 fpindex -= NumMMXRegs; 201 if(fpindex < NumXMMRegs * 2) { 202 ccprintf(os, "%%xmm%d_%s", fpindex / 2, 203 (fpindex % 2) ? "high": "low"); 204 return; 205 } 206 fpindex -= NumXMMRegs * 2; 207 if(fpindex < NumMicroFpRegs) { 208 ccprintf(os, "%%ufp%d", fpindex); 209 return; 210 } 211 fpindex -= NumMicroFpRegs; 212 ccprintf(os, "%%st(%d)", fpindex); 213 } else { 214 switch (reg - Ctrl_Base_DepTag) { 215 default: 216 ccprintf(os, "%%ctrl%d", reg - Ctrl_Base_DepTag); 217 } 218 } 219 } 220 221 std::string X86StaticInst::generateDisassembly(Addr pc, 222 const SymbolTable *symtab) const 223 { 224 std::stringstream ss; 225 226 printMnemonic(ss, mnemonic); 227 228 return ss.str(); 229 } 230} 231