static_inst.cc revision 8541:27aaee8ec7cc
12068SN/A/* 22068SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 32068SN/A * All rights reserved. 42068SN/A * 52068SN/A * Redistribution and use in source and binary forms, with or without 62068SN/A * modification, are permitted provided that the following conditions are 72068SN/A * met: redistributions of source code must retain the above copyright 82068SN/A * notice, this list of conditions and the following disclaimer; 92068SN/A * redistributions in binary form must reproduce the above copyright 102068SN/A * notice, this list of conditions and the following disclaimer in the 112068SN/A * documentation and/or other materials provided with the distribution; 122068SN/A * neither the name of the copyright holders nor the names of its 132068SN/A * contributors may be used to endorse or promote products derived from 142068SN/A * this software without specific prior written permission. 152068SN/A * 162068SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172068SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182068SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192068SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202068SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212068SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222068SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232068SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242068SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252068SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262068SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272068SN/A * 282665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 292665Ssaidi@eecs.umich.edu * Nathan Binkert 302068SN/A */ 312649Ssaidi@eecs.umich.edu 322649Ssaidi@eecs.umich.edu#include <iostream> 332649Ssaidi@eecs.umich.edu 342649Ssaidi@eecs.umich.edu#include "cpu/static_inst.hh" 352649Ssaidi@eecs.umich.edu#include "sim/core.hh" 362068SN/A 372068SN/AStaticInstPtr StaticInst::nullStaticInstPtr; 382068SN/A 392068SN/Ausing namespace std; 402068SN/A 412068SN/AStaticInst::~StaticInst() 422068SN/A{ 432068SN/A if (cachedDisassembly) 442068SN/A delete cachedDisassembly; 452068SN/A} 462068SN/A 472068SN/Abool 482068SN/AStaticInst::hasBranchTarget(const TheISA::PCState &pc, ThreadContext *tc, 492068SN/A TheISA::PCState &tgt) const 502068SN/A{ 512068SN/A if (isDirectCtrl()) { 522068SN/A tgt = branchTarget(pc); 532068SN/A return true; 542068SN/A } 552068SN/A 562227SN/A if (isIndirectCtrl()) { 572068SN/A tgt = branchTarget(tc); 582068SN/A return true; 592068SN/A } 602068SN/A 612068SN/A return false; 622068SN/A} 632068SN/A 642068SN/AStaticInstPtr 652068SN/AStaticInst::fetchMicroop(MicroPC upc) const 662068SN/A{ 672068SN/A panic("StaticInst::fetchMicroop() called on instruction " 682068SN/A "that is not microcoded."); 692068SN/A} 702068SN/A 712068SN/ATheISA::PCState 722068SN/AStaticInst::branchTarget(const TheISA::PCState &pc) const 732068SN/A{ 742068SN/A panic("StaticInst::branchTarget() called on instruction " 752068SN/A "that is not a PC-relative branch."); 762068SN/A M5_DUMMY_RETURN; 772068SN/A} 782227SN/A 792068SN/ATheISA::PCState 802068SN/AStaticInst::branchTarget(ThreadContext *tc) const 812068SN/A{ 822068SN/A panic("StaticInst::branchTarget() called on instruction " 832068SN/A "that is not an indirect branch."); 8412616Sgabeblack@google.com M5_DUMMY_RETURN; 8512616Sgabeblack@google.com} 862068SN/A 879552Sandreas.hansson@arm.comconst string & 889552Sandreas.hansson@arm.comStaticInst::disassemble(Addr pc, const SymbolTable *symtab) const 899552Sandreas.hansson@arm.com{ 9012616Sgabeblack@google.com if (!cachedDisassembly) 9112616Sgabeblack@google.com cachedDisassembly = new string(generateDisassembly(pc, symtab)); 922068SN/A 932068SN/A return *cachedDisassembly; 942068SN/A} 952068SN/A