pred.isa revision 7408
16019SN/A// -*- mode:c++ -*-
26019SN/A
37110SN/A// Copyright (c) 2010 ARM Limited
47110SN/A// All rights reserved
57110SN/A//
67110SN/A// The license below extends only to copyright in the software and shall
77110SN/A// not be construed as granting a license to any other intellectual
87110SN/A// property including but not limited to intellectual property relating
97110SN/A// to a hardware implementation of the functionality of the software
107110SN/A// licensed hereunder.  You may use the software subject to the license
117110SN/A// terms below provided that you ensure that this notice is replicated
127110SN/A// unmodified and in its entirety in all distributions of the software,
137110SN/A// modified or unmodified, in source code or in binary form.
147110SN/A//
156019SN/A// Copyright (c) 2007-2008 The Florida State University
166019SN/A// All rights reserved.
176019SN/A//
186019SN/A// Redistribution and use in source and binary forms, with or without
196019SN/A// modification, are permitted provided that the following conditions are
206019SN/A// met: redistributions of source code must retain the above copyright
216019SN/A// notice, this list of conditions and the following disclaimer;
226019SN/A// redistributions in binary form must reproduce the above copyright
236019SN/A// notice, this list of conditions and the following disclaimer in the
246019SN/A// documentation and/or other materials provided with the distribution;
256019SN/A// neither the name of the copyright holders nor the names of its
266019SN/A// contributors may be used to endorse or promote products derived from
276019SN/A// this software without specific prior written permission.
286019SN/A//
296019SN/A// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
306019SN/A// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
316019SN/A// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
326019SN/A// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
336019SN/A// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
346019SN/A// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
356019SN/A// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
366019SN/A// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
376019SN/A// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
386019SN/A// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
396019SN/A// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
406019SN/A//
416019SN/A// Authors: Stephen Hines
426019SN/A
436019SN/A////////////////////////////////////////////////////////////////////
446019SN/A//
456019SN/A// Predicated Instruction Execution
466019SN/A//
476019SN/A
486243SN/Alet {{
497408Sgblack@eecs.umich.edu    predicateTest = '''
507408Sgblack@eecs.umich.edu        testPredicate(CondCodes, machInst.itstateMask ?
517408Sgblack@eecs.umich.edu            (ConditionCode)(uint8_t)machInst.itstateCond :
527408Sgblack@eecs.umich.edu            condCode)
537408Sgblack@eecs.umich.edu    '''
546243SN/A}};
556243SN/A
567138Sgblack@eecs.umich.edudef template DataImmDeclare {{
577138Sgblack@eecs.umich.educlass %(class_name)s : public %(base_class)s
587138Sgblack@eecs.umich.edu{
597138Sgblack@eecs.umich.edu    public:
607138Sgblack@eecs.umich.edu        // Constructor
617138Sgblack@eecs.umich.edu        %(class_name)s(ExtMachInst machInst, IntRegIndex _dest,
627138Sgblack@eecs.umich.edu                IntRegIndex _op1, uint32_t _imm, bool _rotC=true);
637138Sgblack@eecs.umich.edu        %(BasicExecDeclare)s
647138Sgblack@eecs.umich.edu};
657138Sgblack@eecs.umich.edu}};
667138Sgblack@eecs.umich.edu
677138Sgblack@eecs.umich.edudef template DataImmConstructor {{
687138Sgblack@eecs.umich.edu    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
697138Sgblack@eecs.umich.edu                                          IntRegIndex _dest,
707138Sgblack@eecs.umich.edu                                          IntRegIndex _op1,
717138Sgblack@eecs.umich.edu                                          uint32_t _imm,
727138Sgblack@eecs.umich.edu                                          bool _rotC)
737138Sgblack@eecs.umich.edu        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
747138Sgblack@eecs.umich.edu                         _dest, _op1, _imm, _rotC)
757138Sgblack@eecs.umich.edu    {
767138Sgblack@eecs.umich.edu        %(constructor)s;
777138Sgblack@eecs.umich.edu    }
787138Sgblack@eecs.umich.edu}};
797138Sgblack@eecs.umich.edu
807138Sgblack@eecs.umich.edudef template DataRegDeclare {{
817138Sgblack@eecs.umich.educlass %(class_name)s : public %(base_class)s
827138Sgblack@eecs.umich.edu{
837138Sgblack@eecs.umich.edu    public:
847138Sgblack@eecs.umich.edu        // Constructor
857138Sgblack@eecs.umich.edu        %(class_name)s(ExtMachInst machInst, IntRegIndex _dest,
867138Sgblack@eecs.umich.edu                IntRegIndex _op1, IntRegIndex _op2,
877138Sgblack@eecs.umich.edu                int32_t _shiftAmt, ArmShiftType _shiftType);
887138Sgblack@eecs.umich.edu        %(BasicExecDeclare)s
897138Sgblack@eecs.umich.edu};
907138Sgblack@eecs.umich.edu}};
917138Sgblack@eecs.umich.edu
927138Sgblack@eecs.umich.edudef template DataRegConstructor {{
937138Sgblack@eecs.umich.edu    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
947138Sgblack@eecs.umich.edu                                          IntRegIndex _dest,
957138Sgblack@eecs.umich.edu                                          IntRegIndex _op1,
967138Sgblack@eecs.umich.edu                                          IntRegIndex _op2,
977138Sgblack@eecs.umich.edu                                          int32_t _shiftAmt,
987138Sgblack@eecs.umich.edu                                          ArmShiftType _shiftType)
997138Sgblack@eecs.umich.edu        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
1007138Sgblack@eecs.umich.edu                         _dest, _op1, _op2, _shiftAmt, _shiftType)
1017138Sgblack@eecs.umich.edu    {
1027138Sgblack@eecs.umich.edu        %(constructor)s;
1037138Sgblack@eecs.umich.edu    }
1047138Sgblack@eecs.umich.edu}};
1057138Sgblack@eecs.umich.edu
1067138Sgblack@eecs.umich.edudef template DataRegRegDeclare {{
1077138Sgblack@eecs.umich.educlass %(class_name)s : public %(base_class)s
1087138Sgblack@eecs.umich.edu{
1097138Sgblack@eecs.umich.edu    public:
1107138Sgblack@eecs.umich.edu        // Constructor
1117138Sgblack@eecs.umich.edu        %(class_name)s(ExtMachInst machInst, IntRegIndex _dest,
1127138Sgblack@eecs.umich.edu                IntRegIndex _op1, IntRegIndex _op2, IntRegIndex _shift,
1137138Sgblack@eecs.umich.edu                ArmShiftType _shiftType);
1147138Sgblack@eecs.umich.edu        %(BasicExecDeclare)s
1157138Sgblack@eecs.umich.edu};
1167138Sgblack@eecs.umich.edu}};
1177138Sgblack@eecs.umich.edu
1187138Sgblack@eecs.umich.edudef template DataRegRegConstructor {{
1197138Sgblack@eecs.umich.edu    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
1207138Sgblack@eecs.umich.edu                                          IntRegIndex _dest,
1217138Sgblack@eecs.umich.edu                                          IntRegIndex _op1,
1227138Sgblack@eecs.umich.edu                                          IntRegIndex _op2,
1237138Sgblack@eecs.umich.edu                                          IntRegIndex _shift,
1247138Sgblack@eecs.umich.edu                                          ArmShiftType _shiftType)
1257138Sgblack@eecs.umich.edu        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
1267138Sgblack@eecs.umich.edu                         _dest, _op1, _op2, _shift, _shiftType)
1277138Sgblack@eecs.umich.edu    {
1287138Sgblack@eecs.umich.edu        %(constructor)s;
1297138Sgblack@eecs.umich.edu    }
1307138Sgblack@eecs.umich.edu}};
1317138Sgblack@eecs.umich.edu
1326019SN/Adef template PredOpExecute {{
1336019SN/A    Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
1346019SN/A    {
1356019SN/A        Fault fault = NoFault;
1366271SN/A        uint64_t resTemp = 0;
1376271SN/A        resTemp = resTemp;
1386019SN/A        %(op_decl)s;
1396019SN/A        %(op_rd)s;
1406019SN/A
1416243SN/A        if (%(predicate_test)s)
1426019SN/A        {
1436243SN/A            %(code)s;
1446019SN/A            if (fault == NoFault)
1456019SN/A            {
1466019SN/A                %(op_wb)s;
1476019SN/A            }
1486019SN/A        }
1496019SN/A
1507408Sgblack@eecs.umich.edu        if (fault == NoFault && machInst.itstateMask != 0) {
1517408Sgblack@eecs.umich.edu            xc->setMiscReg(MISCREG_ITSTATE, machInst.newItstate);
1527408Sgblack@eecs.umich.edu        }
1537408Sgblack@eecs.umich.edu
1546019SN/A        return fault;
1556019SN/A    }
1566019SN/A}};
1576019SN/A
1586265SN/Adef template DataDecode {{
1596265SN/A    if (machInst.opcode4 == 0) {
1606265SN/A        if (machInst.sField == 0)
1616265SN/A            return new %(class_name)sImm(machInst);
1626265SN/A        else
1636265SN/A            return new %(class_name)sImmCc(machInst);
1646265SN/A    } else {
1656265SN/A        if (machInst.sField == 0)
1666265SN/A            return new %(class_name)s(machInst);
1676265SN/A        else
1686265SN/A            return new %(class_name)sCc(machInst);
1696265SN/A    }
1706265SN/A}};
1716265SN/A
1726270SN/Adef template DataImmDecode {{
1736270SN/A    if (machInst.sField == 0)
1746270SN/A        return new %(class_name)s(machInst);
1756270SN/A    else
1766270SN/A        return new %(class_name)sCc(machInst);
1776270SN/A}};
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