1/* 2 * Copyright (c) 2010 ARM Limited 3 * Copyright (c) 2013 Advanced Micro Devices, Inc. 4 * All rights reserved 5 * 6 * The license below extends only to copyright in the software and shall 7 * not be construed as granting a license to any other intellectual 8 * property including but not limited to intellectual property relating --- 53 unchanged lines hidden (view full) --- 62 public: 63 /** Typedef for the CPU. */ 64 typedef typename Impl::O3CPU O3CPU; 65 66 /** Binary machine instruction type. */ 67 typedef TheISA::MachInst MachInst; 68 /** Extended machine instruction type. */ 69 typedef TheISA::ExtMachInst ExtMachInst; |
70 /** Register types. */ |
71 typedef TheISA::IntReg IntReg; 72 typedef TheISA::FloatReg FloatReg; 73 typedef TheISA::FloatRegBits FloatRegBits; 74 typedef TheISA::CCReg CCReg; 75 |
76 /** Misc register type. */ |
77 typedef TheISA::MiscReg MiscReg; 78 79 enum { 80 MaxInstSrcRegs = TheISA::MaxInstSrcRegs, //< Max source regs 81 MaxInstDestRegs = TheISA::MaxInstDestRegs //< Max dest regs 82 }; 83 84 public: --- 80 unchanged lines hidden (view full) --- 165 _numDestMiscRegs++; 166 } 167 168 /** Reads a misc. register, including any side-effects the read 169 * might have as defined by the architecture. 170 */ 171 TheISA::MiscReg readMiscRegOperand(const StaticInst *si, int idx) 172 { |
173 RegId reg = si->srcRegIdx(idx); 174 assert(reg.regClass == MiscRegClass); 175 return this->cpu->readMiscReg(reg.regIdx, this->threadNumber); |
176 } 177 178 /** Sets a misc. register, including any side-effects the write 179 * might have as defined by the architecture. 180 */ 181 void setMiscRegOperand(const StaticInst *si, int idx, 182 const MiscReg &val) 183 { |
184 RegId reg = si->destRegIdx(idx); 185 assert(reg.regClass == MiscRegClass); 186 setMiscReg(reg.regIdx, val); |
187 } 188 189 /** Called at the commit stage to update the misc. registers. */ 190 void updateMiscRegs() 191 { 192 // @todo: Pretty convoluted way to avoid squashing from happening when 193 // using the TC during an instruction's execution (specifically for 194 // instructions that have side-effects that use the TC). Fix this. --- 8 unchanged lines hidden (view full) --- 203 this->thread->noSquashFromTC = no_squash_from_TC; 204 } 205 206 void forwardOldRegs() 207 { 208 209 for (int idx = 0; idx < this->numDestRegs(); idx++) { 210 PhysRegIndex prev_phys_reg = this->prevDestRegIdx(idx); |
211 RegId original_dest_reg = |
212 this->staticInst->destRegIdx(idx); |
213 switch (original_dest_reg.regClass) { |
214 case IntRegClass: 215 this->setIntRegOperand(this->staticInst.get(), idx, 216 this->cpu->readIntReg(prev_phys_reg)); 217 break; 218 case FloatRegClass: 219 this->setFloatRegOperandBits(this->staticInst.get(), idx, 220 this->cpu->readFloatRegBits(prev_phys_reg)); 221 break; --- 73 unchanged lines hidden (view full) --- 295 296 void setCCRegOperand(const StaticInst *si, int idx, CCReg val) 297 { 298 this->cpu->setCCReg(this->_destRegIdx[idx], val); 299 BaseDynInst<Impl>::setCCRegOperand(si, idx, val); 300 } 301 302#if THE_ISA == MIPS_ISA |
303 MiscReg readRegOtherThread(RegId misc_reg, ThreadID tid) |
304 { 305 panic("MIPS MT not defined for O3 CPU.\n"); 306 return 0; 307 } 308 |
309 void setRegOtherThread(RegId misc_reg, MiscReg val, ThreadID tid) |
310 { 311 panic("MIPS MT not defined for O3 CPU.\n"); 312 } 313#endif 314 315 public: 316 /** Calculates EA part of a memory instruction. Currently unused, 317 * though it may be useful in the future if we want to split --- 19 unchanged lines hidden --- |