pred_inst.hh revision 6306
16253Sgblack@eecs.umich.edu/* Copyright (c) 2007-2008 The Florida State University 26253Sgblack@eecs.umich.edu * All rights reserved. 36253Sgblack@eecs.umich.edu * 46253Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 56253Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 66253Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 76253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 86253Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 96253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 106253Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 116253Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 126253Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 136253Sgblack@eecs.umich.edu * this software without specific prior written permission. 146253Sgblack@eecs.umich.edu * 156253Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 166253Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 176253Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 186253Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 196253Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 206253Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 216253Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 226253Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 236253Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 246253Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 256253Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 266253Sgblack@eecs.umich.edu * 276253Sgblack@eecs.umich.edu * Authors: Stephen Hines 286253Sgblack@eecs.umich.edu */ 296253Sgblack@eecs.umich.edu#ifndef __ARCH_ARM_INSTS_PREDINST_HH__ 306253Sgblack@eecs.umich.edu#define __ARCH_ARM_INSTS_PREDINST_HH__ 316253Sgblack@eecs.umich.edu 326253Sgblack@eecs.umich.edu#include "arch/arm/insts/static_inst.hh" 336253Sgblack@eecs.umich.edu#include "base/trace.hh" 346253Sgblack@eecs.umich.edu 356253Sgblack@eecs.umich.edunamespace ArmISA 366253Sgblack@eecs.umich.edu{ 376253Sgblack@eecs.umich.edustatic inline uint32_t 386253Sgblack@eecs.umich.edurotate_imm(uint32_t immValue, int rotateValue) 396253Sgblack@eecs.umich.edu{ 406253Sgblack@eecs.umich.edu return ((immValue >> (rotateValue & 31)) | 416253Sgblack@eecs.umich.edu (immValue << (32 - (rotateValue & 31)))); 426253Sgblack@eecs.umich.edu} 436253Sgblack@eecs.umich.edu 446253Sgblack@eecs.umich.edu/** 456253Sgblack@eecs.umich.edu * Base class for predicated integer operations. 466253Sgblack@eecs.umich.edu */ 476253Sgblack@eecs.umich.educlass PredOp : public ArmStaticInst 486253Sgblack@eecs.umich.edu{ 496253Sgblack@eecs.umich.edu protected: 506253Sgblack@eecs.umich.edu 516253Sgblack@eecs.umich.edu ConditionCode condCode; 526253Sgblack@eecs.umich.edu 536253Sgblack@eecs.umich.edu /// Constructor 546253Sgblack@eecs.umich.edu PredOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 556253Sgblack@eecs.umich.edu ArmStaticInst(mnem, _machInst, __opClass), 566253Sgblack@eecs.umich.edu condCode((ConditionCode)(unsigned)machInst.condCode) 576253Sgblack@eecs.umich.edu { 586253Sgblack@eecs.umich.edu } 596253Sgblack@eecs.umich.edu}; 606253Sgblack@eecs.umich.edu 616253Sgblack@eecs.umich.edu/** 626253Sgblack@eecs.umich.edu * Base class for predicated immediate operations. 636253Sgblack@eecs.umich.edu */ 646253Sgblack@eecs.umich.educlass PredImmOp : public PredOp 656253Sgblack@eecs.umich.edu{ 666306Sgblack@eecs.umich.edu protected: 676253Sgblack@eecs.umich.edu 686306Sgblack@eecs.umich.edu uint32_t imm; 696306Sgblack@eecs.umich.edu uint32_t rotate; 706306Sgblack@eecs.umich.edu uint32_t rotated_imm; 716306Sgblack@eecs.umich.edu uint32_t rotated_carry; 726253Sgblack@eecs.umich.edu 736306Sgblack@eecs.umich.edu /// Constructor 746306Sgblack@eecs.umich.edu PredImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 756306Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 766306Sgblack@eecs.umich.edu imm(machInst.imm), rotate(machInst.rotate << 1), 776306Sgblack@eecs.umich.edu rotated_imm(0), rotated_carry(0) 786306Sgblack@eecs.umich.edu { 796306Sgblack@eecs.umich.edu rotated_imm = rotate_imm(imm, rotate); 806306Sgblack@eecs.umich.edu if (rotate != 0) 816306Sgblack@eecs.umich.edu rotated_carry = (rotated_imm >> 31) & 1; 826306Sgblack@eecs.umich.edu } 836306Sgblack@eecs.umich.edu 846306Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 856253Sgblack@eecs.umich.edu}; 866253Sgblack@eecs.umich.edu 876253Sgblack@eecs.umich.edu/** 886253Sgblack@eecs.umich.edu * Base class for predicated integer operations. 896253Sgblack@eecs.umich.edu */ 906253Sgblack@eecs.umich.educlass PredIntOp : public PredOp 916253Sgblack@eecs.umich.edu{ 926306Sgblack@eecs.umich.edu protected: 936253Sgblack@eecs.umich.edu 946306Sgblack@eecs.umich.edu uint32_t shift_size; 956306Sgblack@eecs.umich.edu uint32_t shift; 966253Sgblack@eecs.umich.edu 976306Sgblack@eecs.umich.edu /// Constructor 986306Sgblack@eecs.umich.edu PredIntOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 996306Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 1006306Sgblack@eecs.umich.edu shift_size(machInst.shiftSize), shift(machInst.shift) 1016306Sgblack@eecs.umich.edu { 1026306Sgblack@eecs.umich.edu } 1036306Sgblack@eecs.umich.edu 1046306Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 1056253Sgblack@eecs.umich.edu}; 1066253Sgblack@eecs.umich.edu 1076253Sgblack@eecs.umich.edu/** 1086253Sgblack@eecs.umich.edu * Base class for predicated macro-operations. 1096253Sgblack@eecs.umich.edu */ 1106253Sgblack@eecs.umich.educlass PredMacroOp : public PredOp 1116253Sgblack@eecs.umich.edu{ 1126306Sgblack@eecs.umich.edu protected: 1136253Sgblack@eecs.umich.edu 1146306Sgblack@eecs.umich.edu uint32_t numMicroops; 1156306Sgblack@eecs.umich.edu StaticInstPtr * microOps; 1166253Sgblack@eecs.umich.edu 1176306Sgblack@eecs.umich.edu /// Constructor 1186306Sgblack@eecs.umich.edu PredMacroOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 1196306Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 1206306Sgblack@eecs.umich.edu numMicroops(0) 1216306Sgblack@eecs.umich.edu { 1226306Sgblack@eecs.umich.edu // We rely on the subclasses of this object to handle the 1236306Sgblack@eecs.umich.edu // initialization of the micro-operations, since they are 1246306Sgblack@eecs.umich.edu // all of variable length 1256306Sgblack@eecs.umich.edu flags[IsMacroop] = true; 1266306Sgblack@eecs.umich.edu } 1276253Sgblack@eecs.umich.edu 1286306Sgblack@eecs.umich.edu ~PredMacroOp() 1296306Sgblack@eecs.umich.edu { 1306306Sgblack@eecs.umich.edu if (numMicroops) 1316306Sgblack@eecs.umich.edu delete [] microOps; 1326306Sgblack@eecs.umich.edu } 1336253Sgblack@eecs.umich.edu 1346306Sgblack@eecs.umich.edu StaticInstPtr 1356306Sgblack@eecs.umich.edu fetchMicroop(MicroPC microPC) 1366306Sgblack@eecs.umich.edu { 1376306Sgblack@eecs.umich.edu assert(microPC < numMicroops); 1386306Sgblack@eecs.umich.edu return microOps[microPC]; 1396306Sgblack@eecs.umich.edu } 1406253Sgblack@eecs.umich.edu 1416306Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 1426253Sgblack@eecs.umich.edu}; 1436253Sgblack@eecs.umich.edu 1446253Sgblack@eecs.umich.edu/** 1456253Sgblack@eecs.umich.edu * Base class for predicated micro-operations. 1466253Sgblack@eecs.umich.edu */ 1476253Sgblack@eecs.umich.educlass PredMicroop : public PredOp 1486253Sgblack@eecs.umich.edu{ 1496306Sgblack@eecs.umich.edu /// Constructor 1506306Sgblack@eecs.umich.edu PredMicroop(const char *mnem, MachInst _machInst, OpClass __opClass) : 1516306Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass) 1526306Sgblack@eecs.umich.edu { 1536306Sgblack@eecs.umich.edu flags[IsMicroop] = true; 1546306Sgblack@eecs.umich.edu } 1556253Sgblack@eecs.umich.edu}; 1566253Sgblack@eecs.umich.edu} 1576253Sgblack@eecs.umich.edu 1586253Sgblack@eecs.umich.edu#endif //__ARCH_ARM_INSTS_PREDINST_HH__ 159