misc.cc revision 7202:b99579129992
16313Sgblack@eecs.umich.edu/*
27093Sgblack@eecs.umich.edu * Copyright (c) 2010 ARM Limited
37093Sgblack@eecs.umich.edu * All rights reserved
47093Sgblack@eecs.umich.edu *
57093Sgblack@eecs.umich.edu * The license below extends only to copyright in the software and shall
67093Sgblack@eecs.umich.edu * not be construed as granting a license to any other intellectual
77093Sgblack@eecs.umich.edu * property including but not limited to intellectual property relating
87093Sgblack@eecs.umich.edu * to a hardware implementation of the functionality of the software
97093Sgblack@eecs.umich.edu * licensed hereunder.  You may use the software subject to the license
107093Sgblack@eecs.umich.edu * terms below provided that you ensure that this notice is replicated
117093Sgblack@eecs.umich.edu * unmodified and in its entirety in all distributions of the software,
127093Sgblack@eecs.umich.edu * modified or unmodified, in source code or in binary form.
137093Sgblack@eecs.umich.edu *
146313Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without
156313Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are
166313Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright
176313Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer;
186313Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright
196313Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the
206313Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution;
216313Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its
226313Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from
236313Sgblack@eecs.umich.edu * this software without specific prior written permission.
246313Sgblack@eecs.umich.edu *
256313Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
266313Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
276313Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
286313Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
296313Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
306313Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
316313Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
326313Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
336313Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
346313Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
356313Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
366313Sgblack@eecs.umich.edu *
376313Sgblack@eecs.umich.edu * Authors: Gabe Black
386313Sgblack@eecs.umich.edu */
396313Sgblack@eecs.umich.edu
406313Sgblack@eecs.umich.edu#include "arch/arm/insts/misc.hh"
416313Sgblack@eecs.umich.edu
426313Sgblack@eecs.umich.edustd::string
436313Sgblack@eecs.umich.eduMrsOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
446313Sgblack@eecs.umich.edu{
456313Sgblack@eecs.umich.edu    std::stringstream ss;
466333Sgblack@eecs.umich.edu    printMnemonic(ss);
476313Sgblack@eecs.umich.edu    printReg(ss, dest);
486313Sgblack@eecs.umich.edu    ss << ", ";
496333Sgblack@eecs.umich.edu    bool foundPsr = false;
506313Sgblack@eecs.umich.edu    for (unsigned i = 0; i < numSrcRegs(); i++) {
516313Sgblack@eecs.umich.edu        int idx = srcRegIdx(i);
526313Sgblack@eecs.umich.edu        if (idx < Ctrl_Base_DepTag) {
536313Sgblack@eecs.umich.edu            continue;
546313Sgblack@eecs.umich.edu        }
556313Sgblack@eecs.umich.edu        idx -= Ctrl_Base_DepTag;
566313Sgblack@eecs.umich.edu        if (idx == MISCREG_CPSR) {
576313Sgblack@eecs.umich.edu            ss << "cpsr";
586333Sgblack@eecs.umich.edu            foundPsr = true;
596718Sgblack@eecs.umich.edu            break;
606718Sgblack@eecs.umich.edu        }
616718Sgblack@eecs.umich.edu        if (idx == MISCREG_SPSR) {
626718Sgblack@eecs.umich.edu            ss << "spsr";
636718Sgblack@eecs.umich.edu            foundPsr = true;
646718Sgblack@eecs.umich.edu            break;
656718Sgblack@eecs.umich.edu        }
666718Sgblack@eecs.umich.edu    }
676718Sgblack@eecs.umich.edu    if (!foundPsr) {
686718Sgblack@eecs.umich.edu        ss << "????";
696718Sgblack@eecs.umich.edu    }
706718Sgblack@eecs.umich.edu    return ss.str();
716718Sgblack@eecs.umich.edu}
726718Sgblack@eecs.umich.edu
736718Sgblack@eecs.umich.eduvoid
746718Sgblack@eecs.umich.eduMsrBase::printMsrBase(std::ostream &os) const
756718Sgblack@eecs.umich.edu{
766718Sgblack@eecs.umich.edu    printMnemonic(os);
776718Sgblack@eecs.umich.edu    bool apsr = false;
786723Sgblack@eecs.umich.edu    bool foundPsr = false;
796723Sgblack@eecs.umich.edu    for (unsigned i = 0; i < numDestRegs(); i++) {
806723Sgblack@eecs.umich.edu        int idx = destRegIdx(i);
816718Sgblack@eecs.umich.edu        if (idx < Ctrl_Base_DepTag) {
826718Sgblack@eecs.umich.edu            continue;
836718Sgblack@eecs.umich.edu        }
846718Sgblack@eecs.umich.edu        idx -= Ctrl_Base_DepTag;
856718Sgblack@eecs.umich.edu        if (idx == MISCREG_CPSR) {
866718Sgblack@eecs.umich.edu            os << "cpsr_";
876718Sgblack@eecs.umich.edu            foundPsr = true;
886718Sgblack@eecs.umich.edu            break;
896718Sgblack@eecs.umich.edu        }
906718Sgblack@eecs.umich.edu        if (idx == MISCREG_SPSR) {
916313Sgblack@eecs.umich.edu            if (bits(byteMask, 1, 0)) {
926313Sgblack@eecs.umich.edu                os << "spsr_";
936333Sgblack@eecs.umich.edu            } else {
946333Sgblack@eecs.umich.edu                os << "apsr_";
956401Sgblack@eecs.umich.edu                apsr = true;
966401Sgblack@eecs.umich.edu            }
976719Sgblack@eecs.umich.edu            foundPsr = true;
986401Sgblack@eecs.umich.edu            break;
996718Sgblack@eecs.umich.edu        }
1006735Sgblack@eecs.umich.edu    }
1016735Sgblack@eecs.umich.edu    if (!foundPsr) {
1026735Sgblack@eecs.umich.edu        os << "????";
1036735Sgblack@eecs.umich.edu        return;
1046735Sgblack@eecs.umich.edu    }
1056735Sgblack@eecs.umich.edu    if (bits(byteMask, 3)) {
1066735Sgblack@eecs.umich.edu        if (apsr) {
1077270Sgblack@eecs.umich.edu            os << "nzcvq";
1086735Sgblack@eecs.umich.edu        } else {
1097271Sgblack@eecs.umich.edu            os << "f";
1107271Sgblack@eecs.umich.edu        }
1117271Sgblack@eecs.umich.edu    }
1127271Sgblack@eecs.umich.edu    if (bits(byteMask, 2)) {
1137320Sgblack@eecs.umich.edu        if (apsr) {
1147320Sgblack@eecs.umich.edu            os << "g";
1157320Sgblack@eecs.umich.edu        } else {
1167320Sgblack@eecs.umich.edu            os << "s";
1177320Sgblack@eecs.umich.edu        }
1187271Sgblack@eecs.umich.edu    }
1197350SAli.Saidi@ARM.com    if (bits(byteMask, 1)) {
1207350SAli.Saidi@ARM.com        os << "x";
1217350SAli.Saidi@ARM.com    }
1227298Sgblack@eecs.umich.edu    if (bits(byteMask, 0)) {
1237298Sgblack@eecs.umich.edu        os << "c";
1247298Sgblack@eecs.umich.edu    }
1257298Sgblack@eecs.umich.edu}
1267298Sgblack@eecs.umich.edu
1277298Sgblack@eecs.umich.edustd::string
1287298Sgblack@eecs.umich.eduMsrImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
1297298Sgblack@eecs.umich.edu{
1307298Sgblack@eecs.umich.edu    std::stringstream ss;
1317298Sgblack@eecs.umich.edu    printMsrBase(ss);
1327298Sgblack@eecs.umich.edu    ccprintf(ss, ", #%#x", imm);
1337298Sgblack@eecs.umich.edu    return ss.str();
1347354Sgblack@eecs.umich.edu}
1357354Sgblack@eecs.umich.edu
1367354Sgblack@eecs.umich.edustd::string
1377383Sgblack@eecs.umich.eduMsrRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
1387383Sgblack@eecs.umich.edu{
1397383Sgblack@eecs.umich.edu    std::stringstream ss;
1407383Sgblack@eecs.umich.edu    printMsrBase(ss);
1417383Sgblack@eecs.umich.edu    ss << ", ";
1427383Sgblack@eecs.umich.edu    printReg(ss, op1);
1437383Sgblack@eecs.umich.edu    return ss.str();
1447383Sgblack@eecs.umich.edu}
1457383Sgblack@eecs.umich.edu