src/cpu/inorder/inorder_dyn_inst.cc

   1 /*
   2  * Copyright (c) 2007 MIPS Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Korey Sewell
  29  *
  30  */
  31
  32 #include <iostream>
  33 #include <set>
  34 #include <string>
  35 #include <sstream>
  36
  37 #include "base/cprintf.hh"
  38 #include "base/trace.hh"
  39
  40 #include "arch/faults.hh"
  41 #include "cpu/exetrace.hh"
  42 #include "mem/request.hh"
  43
  44 #include "cpu/inorder/inorder_dyn_inst.hh"
  45 #include "cpu/inorder/cpu.hh"
  46
  47 using namespace std;
  48 using namespace TheISA;
  49 using namespace ThePipeline;
  50
  51 InOrderDynInst::InOrderDynInst(TheISA::ExtMachInst machInst, Addr inst_PC,
  52                                Addr pred_PC, InstSeqNum seq_num,
  53                                InOrderCPU *cpu)
  54   : staticInst(machInst, inst_PC), traceData(NULL), cpu(cpu)
  55 {
  56     seqNum = seq_num;
  57
  58     PC = inst_PC;
  59     nextPC = PC + sizeof(MachInst);
  60     nextNPC = nextPC + sizeof(MachInst);
  61     predPC = pred_PC;
  62
  63     initVars();
  64 }
  65
  66 InOrderDynInst::InOrderDynInst(InOrderCPU *cpu,
  67                                InOrderThreadState *state,
  68                                InstSeqNum seq_num,
  69                                ThreadID tid,
  70                                unsigned _asid)
  71     : traceData(NULL), cpu(cpu)
  72 {
  73     seqNum = seq_num;
  74     thread = state;
  75     threadNumber = tid;
  76     asid = _asid;
  77     initVars();
  78 }
  79
  80 InOrderDynInst::InOrderDynInst(StaticInstPtr &_staticInst)
  81     : seqNum(0), staticInst(_staticInst), traceData(NULL)
  82 {
  83     initVars();
  84 }
  85
  86 InOrderDynInst::InOrderDynInst()
  87     : seqNum(0), traceData(NULL), cpu(cpu)
  88 {
  89     initVars();
  90 }
  91
  92 int InOrderDynInst::instcount = 0;
  93
  94
  95 void
  96 InOrderDynInst::setMachInst(ExtMachInst machInst)
  97 {
  98     staticInst = StaticInst::decode(machInst, PC);
  99
 100     for (int i = 0; i < this->staticInst->numDestRegs(); i++) {
 101         _destRegIdx[i] = this->staticInst->destRegIdx(i);
 102     }
 103
 104     for (int i = 0; i < this->staticInst->numSrcRegs(); i++) {
 105         _srcRegIdx[i] = this->staticInst->srcRegIdx(i);
 106         this->_readySrcRegIdx[i] = 0;
 107     }
 108 }
 109
 110 void
 111 InOrderDynInst::initVars()
 112 {
 113     fetchMemReq = NULL;
 114     dataMemReq = NULL;
 115
 116     effAddr = 0;
 117     physEffAddr = 0;
 118
 119     readyRegs = 0;
 120
 121     nextStage = 0;
 122     nextInstStageNum = 0;
 123
 124     for(int i = 0; i < MaxInstDestRegs; i++)
 125         instResult[i].val.integer = 0;
 126
 127     status.reset();
 128
 129     memAddrReady = false;
 130     eaCalcDone = false;
 131     memOpDone = false;
 132
 133     predictTaken = false;
 134     procDelaySlotOnMispred = false;
 135
 136     lqIdx = -1;
 137     sqIdx = -1;
 138
 139     // Also make this a parameter, or perhaps get it from xc or cpu.
 140     asid = 0;
 141
 142     virtProcNumber = 0;
 143
 144     // Initialize the fault to be NoFault.
 145     fault = NoFault;
 146
 147     // Make sure to have the renamed register entries set to the same
 148     // as the normal register entries.  It will allow the IQ to work
 149     // without any modifications.
 150     if (this->staticInst) {
 151         for (int i = 0; i < this->staticInst->numDestRegs(); i++) {
 152             _destRegIdx[i] = this->staticInst->destRegIdx(i);
 153         }
 154
 155         for (int i = 0; i < this->staticInst->numSrcRegs(); i++) {
 156             _srcRegIdx[i] = this->staticInst->srcRegIdx(i);
 157             this->_readySrcRegIdx[i] = 0;
 158         }
 159     }
 160
 161     // Update Instruction Count for this instruction
 162     ++instcount;
 163     if (instcount > 500) {
 164         fatal("Number of Active Instructions in CPU is too high. "
 165                 "(Not Dereferencing Ptrs. Correctly?)\n");
 166     }
 167
 168
 169
 170     DPRINTF(InOrderDynInst, "DynInst: [tid:%i] [sn:%lli] Instruction created. (active insts: %i)\n",
 171             threadNumber, seqNum, instcount);
 172 }
 173
 174
 175 InOrderDynInst::~InOrderDynInst()
 176 {
 177     if (fetchMemReq != 0x0) {
 178         delete fetchMemReq;
 179         fetchMemReq = NULL;
 180     }
 181
 182     if (dataMemReq != 0x0) {
 183         delete dataMemReq;
 184         dataMemReq = NULL;
 185     }
 186
 187     if (traceData) {
 188         delete traceData;
 189     }
 190
 191     fault = NoFault;
 192
 193     --instcount;
 194
 195     deleteStages();
 196
 197     DPRINTF(InOrderDynInst, "DynInst: [tid:%i] [sn:%lli] Instruction destroyed. (active insts: %i)\n",
 198             threadNumber, seqNum, instcount);
 199 }
 200
 201 void
 202 InOrderDynInst::setStaticInst(StaticInstPtr &static_inst)
 203 {
 204     this->staticInst = static_inst;
 205
 206     // Make sure to have the renamed register entries set to the same
 207     // as the normal register entries.  It will allow the IQ to work
 208     // without any modifications.
 209     if (this->staticInst) {
 210         for (int i = 0; i < this->staticInst->numDestRegs(); i++) {
 211             _destRegIdx[i] = this->staticInst->destRegIdx(i);
 212         }
 213
 214         for (int i = 0; i < this->staticInst->numSrcRegs(); i++) {
 215             _srcRegIdx[i] = this->staticInst->srcRegIdx(i);
 216             this->_readySrcRegIdx[i] = 0;
 217         }
 218     }
 219 }
 220
 221 Fault
 222 InOrderDynInst::execute()
 223 {
 224     // @todo: Pretty convoluted way to avoid squashing from happening
 225     // when using the TC during an instruction's execution
 226     // (specifically for instructions that have side-effects that use
 227     // the TC).  Fix this.
 228     bool in_syscall = this->thread->inSyscall;
 229     this->thread->inSyscall = true;
 230
 231     this->fault = this->staticInst->execute(this, this->traceData);
 232
 233     this->thread->inSyscall = in_syscall;
 234
 235     return this->fault;
 236 }
 237
 238 Fault
 239 InOrderDynInst::calcEA()
 240 {
 241     this->fault = this->staticInst->eaComp(this, this->traceData);
 242     return this->fault;
 243 }
 244
 245 Fault
 246 InOrderDynInst::initiateAcc()
 247 {
 248     // @todo: Pretty convoluted way to avoid squashing from happening
 249     // when using the TC during an instruction's execution
 250     // (specifically for instructions that have side-effects that use
 251     // the TC).  Fix this.
 252     bool in_syscall = this->thread->inSyscall;
 253     this->thread->inSyscall = true;
 254
 255     this->fault = this->staticInst->initiateAcc(this, this->traceData);
 256
 257     this->thread->inSyscall = in_syscall;
 258
 259     return this->fault;
 260 }
 261
 262
 263 Fault
 264 InOrderDynInst::completeAcc(Packet *pkt)
 265 {
 266     this->fault = this->staticInst->completeAcc(pkt, this, this->traceData);
 267
 268     return this->fault;
 269 }
 270
 271 InstStage *InOrderDynInst::addStage()
 272 {
 273     this->currentInstStage = new InstStage(this, nextInstStageNum++);
 274     instStageList.push_back( this->currentInstStage );
 275     return this->currentInstStage;
 276 }
 277
 278 InstStage *InOrderDynInst::addStage(int stage_num)
 279 {
 280     nextInstStageNum = stage_num;
 281     return InOrderDynInst::addStage();
 282 }
 283
 284 void InOrderDynInst::deleteStages() {
 285     std::list<InstStage*>::iterator list_it = instStageList.begin();
 286     std::list<InstStage*>::iterator list_end = instStageList.end();
 287
 288     while(list_it != list_end) {
 289         delete *list_it;
 290         list_it++;
 291     }
 292 }
 293
 294 Fault
 295 InOrderDynInst::memAccess()
 296 {
 297     return initiateAcc();
 298 }
 299
 300 void
 301 InOrderDynInst::syscall(int64_t callnum)
 302 {
 303     cpu->syscall(callnum, this->threadNumber);
 304 }
 305
 306 void
 307 InOrderDynInst::prefetch(Addr addr, unsigned flags)
 308 {
 309     cpu->prefetch(this);
 310 }
 311
 312 void
 313 InOrderDynInst::writeHint(Addr addr, int size, unsigned flags)
 314 {
 315     cpu->writeHint(this);
 316 }
 317
 318 /**
 319  * @todo Need to find a way to get the cache block size here.
 320  */
 321 Fault
 322 InOrderDynInst::copySrcTranslate(Addr src)
 323 {
 324     // Not currently supported.
 325     return NoFault;
 326 }
 327
 328 /**
 329  * @todo Need to find a way to get the cache block size here.
 330  */
 331 Fault
 332 InOrderDynInst::copy(Addr dest)
 333 {
 334     // Not currently supported.
 335     return NoFault;
 336 }
 337
 338 void
 339 InOrderDynInst::releaseReq(ResourceRequest* req)
 340 {
 341     std::list<ResourceRequest*>::iterator list_it = reqList.begin();
 342     std::list<ResourceRequest*>::iterator list_end = reqList.end();
 343
 344     while(list_it != list_end) {
 345         if((*list_it)->getResIdx() == req->getResIdx() &&
 346            (*list_it)->getSlot() == req->getSlot()) {
 347             DPRINTF(InOrderDynInst, "[tid:%u]: [sn:%i] Done with request to %s.\n",
 348                     threadNumber, seqNum, req->res->name());
 349             reqList.erase(list_it);
 350             return;
 351         }
 352         list_it++;
 353     }
 354
 355     panic("Releasing Res. Request That Isnt There!\n");
 356 }
 357
 358 /** Records an integer source register being set to a value. */
 359 void
 360 InOrderDynInst::setIntSrc(int idx, uint64_t val)
 361 {
 362     DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] Source Value %i being set to %#x.\n",
 363             threadNumber, seqNum, idx, val);
 364     instSrc[idx].integer = val;
 365 }
 366
 367 /** Records an fp register being set to a value. */
 368 void
 369 InOrderDynInst::setFloatSrc(int idx, FloatReg val)
 370 {
 371     instSrc[idx].dbl = val;
 372 }
 373
 374 /** Records an fp register being set to an integer value. */
 375 void
 376 InOrderDynInst::setFloatRegBitsSrc(int idx, uint64_t val)
 377 {
 378     instSrc[idx].integer = val;
 379 }
 380
 381 /** Reads a integer register. */
 382 IntReg
 383 InOrderDynInst::readIntRegOperand(const StaticInst *si, int idx, ThreadID tid)
 384 {
 385     DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] Source Value %i read as %#x.\n",
 386             threadNumber, seqNum, idx, instSrc[idx].integer);
 387     return instSrc[idx].integer;
 388 }
 389
 390 /** Reads a FP register. */
 391 FloatReg
 392 InOrderDynInst::readFloatRegOperand(const StaticInst *si, int idx)
 393 {
 394     return instSrc[idx].dbl;
 395 }
 396
 397
 398 /** Reads a FP register as a integer. */
 399 FloatRegBits
 400 InOrderDynInst::readFloatRegOperandBits(const StaticInst *si, int idx)
 401 {
 402     return instSrc[idx].integer;
 403 }
 404
 405 /** Reads a miscellaneous register. */
 406 MiscReg
 407 InOrderDynInst::readMiscReg(int misc_reg)
 408 {
 409     return this->cpu->readMiscReg(misc_reg, threadNumber);
 410 }
 411
 412 /** Reads a misc. register, including any side-effects the read
 413  * might have as defined by the architecture.
 414  */
 415 MiscReg
 416 InOrderDynInst::readMiscRegNoEffect(int misc_reg)
 417 {
 418     return this->cpu->readMiscRegNoEffect(misc_reg, threadNumber);
 419 }
 420
 421 /** Reads a miscellaneous register. */
 422 MiscReg
 423 InOrderDynInst::readMiscRegOperandNoEffect(const StaticInst *si, int idx)
 424 {
 425     DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] Misc. Reg Source Value %i"
 426             " read as %#x.\n", threadNumber, seqNum, idx,
 427             instSrc[idx].integer);
 428     return instSrc[idx].integer;
 429 }
 430
 431 /** Reads a misc. register, including any side-effects the read
 432  * might have as defined by the architecture.
 433  */
 434 MiscReg
 435 InOrderDynInst::readMiscRegOperand(const StaticInst *si, int idx)
 436 {
 437     // For In-Order, the side-effect of reading a register happens
 438     // when explicitly executing a "ReadSrc" command. This simply returns
 439     // a value.
 440     return readMiscRegOperandNoEffect(si, idx);
 441 }
 442
 443 /** Sets a misc. register. */
 444 void
 445 InOrderDynInst::setMiscRegOperandNoEffect(const StaticInst * si, int idx,
 446                                           const MiscReg &val)
 447 {
 448     instResult[idx].type = Integer;
 449     instResult[idx].val.integer = val;
 450     instResult[idx].tick = curTick;
 451
 452     DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] Setting Misc Reg. Operand %i "
 453             "being set to %#x.\n", threadNumber, seqNum, idx, val);
 454 }
 455
 456 /** Sets a misc. register, including any side-effects the write
 457  * might have as defined by the architecture.
 458  */
 459 void
 460 InOrderDynInst::setMiscRegOperand(const StaticInst *si, int idx,
 461                        const MiscReg &val)
 462 {
 463     // For In-Order, the side-effect of setting a register happens
 464     // when explicitly writing back the register value. This
 465     // simply maintains the operand value.
 466     setMiscRegOperandNoEffect(si, idx, val);
 467 }
 468
 469 MiscReg
 470 InOrderDynInst::readRegOtherThread(unsigned reg_idx, ThreadID tid)
 471 {
 472     if (tid == -1) {
 473         tid = TheISA::getTargetThread(this->cpu->tcBase(threadNumber));
 474     }
 475
 476     if (reg_idx < FP_Base_DepTag) {                   // Integer Register File
 477         return this->cpu->readIntReg(reg_idx, tid);
 478     } else if (reg_idx < Ctrl_Base_DepTag) {          // Float Register File
 479         reg_idx -= FP_Base_DepTag;
 480         return this->cpu->readFloatRegBits(reg_idx, tid);
 481     } else {
 482         reg_idx -= Ctrl_Base_DepTag;
 483         return this->cpu->readMiscReg(reg_idx, tid);  // Misc. Register File
 484     }
 485 }
 486
 487 /** Sets a Integer register. */
 488 void
 489 InOrderDynInst::setIntRegOperand(const StaticInst *si, int idx, IntReg val)
 490 {
 491     instResult[idx].type = Integer;
 492     instResult[idx].val.integer = val;
 493     instResult[idx].tick = curTick;
 494 }
 495
 496 /** Sets a FP register. */
 497 void
 498 InOrderDynInst::setFloatRegOperand(const StaticInst *si, int idx, FloatReg val)
 499 {
 500     instResult[idx].val.dbl = val;
 501     instResult[idx].type = Float;
 502
 503     instResult[idx].tick = curTick;
 504 }
 505
 506 /** Sets a FP register as a integer. */
 507 void
 508 InOrderDynInst::setFloatRegOperandBits(const StaticInst *si, int idx,
 509                               FloatRegBits val)
 510 {
 511     instResult[idx].type = Integer;
 512     instResult[idx].val.integer = val;
 513     instResult[idx].tick = curTick;
 514 }
 515
 516 /** Sets a misc. register. */
 517 /* Alter this when wanting to *speculate* on Miscellaneous registers */
 518 void
 519 InOrderDynInst::setMiscRegNoEffect(int misc_reg, const MiscReg &val)
 520 {
 521     this->cpu->setMiscRegNoEffect(misc_reg, val, threadNumber);
 522 }
 523
 524 /** Sets a misc. register, including any side-effects the write
 525  * might have as defined by the architecture.
 526  */
 527 /* Alter this if/when wanting to *speculate* on Miscellaneous registers */
 528 void
 529 InOrderDynInst::setMiscReg(int misc_reg, const MiscReg &val)
 530 {
 531     this->cpu->setMiscReg(misc_reg, val, threadNumber);
 532 }
 533
 534 void
 535 InOrderDynInst::setRegOtherThread(unsigned reg_idx, const MiscReg &val,
 536                                   ThreadID tid)
 537 {
 538     if (tid == InvalidThreadID) {
 539         tid = TheISA::getTargetThread(this->cpu->tcBase(threadNumber));
 540     }
 541
 542     if (reg_idx < FP_Base_DepTag) {            // Integer Register File
 543         this->cpu->setIntReg(reg_idx, val, tid);
 544     } else if (reg_idx < Ctrl_Base_DepTag) {   // Float Register File
 545         reg_idx -= FP_Base_DepTag;
 546         this->cpu->setFloatRegBits(reg_idx, val, tid);
 547     } else {
 548         reg_idx -= Ctrl_Base_DepTag;
 549         this->cpu->setMiscReg(reg_idx, val, tid); // Misc. Register File
 550     }
 551 }
 552
 553 void
 554 InOrderDynInst::deallocateContext(int thread_num)
 555 {
 556     this->cpu->deallocateContext(thread_num);
 557 }
 558
 559 void
 560 InOrderDynInst::enableVirtProcElement(unsigned vpe)
 561 {
 562     this->cpu->enableVirtProcElement(vpe);
 563 }
 564
 565 void
 566 InOrderDynInst::disableVirtProcElement(unsigned vpe)
 567 {
 568     this->cpu->disableVirtProcElement(threadNumber, vpe);
 569 }
 570
 571 void
 572 InOrderDynInst::enableMultiThreading(unsigned vpe)
 573 {
 574     this->cpu->enableMultiThreading(vpe);
 575 }
 576
 577 void
 578 InOrderDynInst::disableMultiThreading(unsigned vpe)
 579 {
 580     this->cpu->disableMultiThreading(threadNumber, vpe);
 581 }
 582
 583 template<class T>
 584 inline Fault
 585 InOrderDynInst::read(Addr addr, T &data, unsigned flags)
 586 {
 587     return cpu->read(this, addr, data, flags);
 588 }
 589
 590 #ifndef DOXYGEN_SHOULD_SKIP_THIS
 591
 592 template
 593 Fault
 594 InOrderDynInst::read(Addr addr, uint64_t &data, unsigned flags);
 595
 596 template
 597 Fault
 598 InOrderDynInst::read(Addr addr, uint32_t &data, unsigned flags);
 599
 600 template
 601 Fault
 602 InOrderDynInst::read(Addr addr, uint16_t &data, unsigned flags);
 603
 604 template
 605 Fault
 606 InOrderDynInst::read(Addr addr, uint8_t &data, unsigned flags);
 607
 608 #endif //DOXYGEN_SHOULD_SKIP_THIS
 609
 610 template<>
 611 Fault
 612 InOrderDynInst::read(Addr addr, double &data, unsigned flags)
 613 {
 614     return read(addr, *(uint64_t*)&data, flags);
 615 }
 616
 617 template<>
 618 Fault
 619 InOrderDynInst::read(Addr addr, float &data, unsigned flags)
 620 {
 621     return read(addr, *(uint32_t*)&data, flags);
 622 }
 623
 624 template<>
 625 Fault
 626 InOrderDynInst::read(Addr addr, int32_t &data, unsigned flags)
 627 {
 628     return read(addr, (uint32_t&)data, flags);
 629 }
 630
 631 template<class T>
 632 inline Fault
 633 InOrderDynInst::write(T data, Addr addr, unsigned flags, uint64_t *res)
 634 {
 635     //memcpy(memData, gtoh(data), sizeof(T));
 636     storeData  = data;
 637
 638     DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] Setting store data to %#x.\n",
 639             threadNumber, seqNum, memData);
 640     return cpu->write(this, data, addr, flags, res);
 641 }
 642
 643 #ifndef DOXYGEN_SHOULD_SKIP_THIS
 644 template
 645 Fault
 646 InOrderDynInst::write(uint64_t data, Addr addr,
 647                        unsigned flags, uint64_t *res);
 648
 649 template
 650 Fault
 651 InOrderDynInst::write(uint32_t data, Addr addr,
 652                        unsigned flags, uint64_t *res);
 653
 654 template
 655 Fault
 656 InOrderDynInst::write(uint16_t data, Addr addr,
 657                        unsigned flags, uint64_t *res);
 658
 659 template
 660 Fault
 661 InOrderDynInst::write(uint8_t data, Addr addr,
 662                        unsigned flags, uint64_t *res);
 663
 664 #endif //DOXYGEN_SHOULD_SKIP_THIS
 665
 666 template<>
 667 Fault
 668 InOrderDynInst::write(double data, Addr addr, unsigned flags, uint64_t *res)
 669 {
 670     return write(*(uint64_t*)&data, addr, flags, res);
 671 }
 672
 673 template<>
 674 Fault
 675 InOrderDynInst::write(float data, Addr addr, unsigned flags, uint64_t *res)
 676 {
 677     return write(*(uint32_t*)&data, addr, flags, res);
 678 }
 679
 680
 681 template<>
 682 Fault
 683 InOrderDynInst::write(int32_t data, Addr addr, unsigned flags, uint64_t *res)
 684 {
 685     return write((uint32_t)data, addr, flags, res);
 686 }
 687
 688
 689 void
 690 InOrderDynInst::dump()
 691 {
 692     cprintf("T%d : %#08d `", threadNumber, PC);
 693     cout << staticInst->disassemble(PC);
 694     cprintf("'\n");
 695 }
 696
 697 void
 698 InOrderDynInst::dump(std::string &outstring)
 699 {
 700     std::ostringstream s;
 701     s << "T" << threadNumber << " : 0x" << PC << " "
 702       << staticInst->disassemble(PC);
 703
 704     outstring = s.str();
 705 }
 706
 707
 708 #define NOHASH
 709 #ifndef NOHASH
 710
 711 #include "base/hashmap.hh"
 712
 713 unsigned int MyHashFunc(const InOrderDynInst *addr)
 714 {
 715     unsigned a = (unsigned)addr;
 716     unsigned hash = (((a >> 14) ^ ((a >> 2) & 0xffff))) & 0x7FFFFFFF;
 717
 718     return hash;
 719 }
 720
 721 typedef m5::hash_map<const InOrderDynInst *, const InOrderDynInst *, MyHashFunc>
 722 my_hash_t;
 723
 724 my_hash_t thishash;
 725 #endif