| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2010, 2016 ARM Limited |
| // All rights reserved |
| // |
| // The license below extends only to copyright in the software and shall |
| // not be construed as granting a license to any other intellectual |
| // property including but not limited to intellectual property relating |
| // to a hardware implementation of the functionality of the software |
| // licensed hereunder. You may use the software subject to the license |
| // terms below provided that you ensure that this notice is replicated |
| // unmodified and in its entirety in all distributions of the software, |
| // modified or unmodified, in source code or in binary form. |
| // |
| // Copyright (c) 2007-2008 The Florida State University |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer; |
| // redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution; |
| // neither the name of the copyright holders nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Authors: Stephen Hines |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // Predicated Instruction Execution |
| // |
| |
| let {{ |
| predicateTest = 'testPredicate(OptCondCodesNZ, OptCondCodesC, OptCondCodesV, condCode)' |
| condPredicateTest = 'testPredicate(CondCodesNZ, CondCodesC, CondCodesV, condCode)' |
| }}; |
| |
| def template DataImmDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| public: |
| // Constructor |
| %(class_name)s(ExtMachInst machInst, IntRegIndex _dest, |
| IntRegIndex _op1, uint32_t _imm, bool _rotC=true); |
| Fault execute(ExecContext *, Trace::InstRecord *) const override; |
| }; |
| }}; |
| |
| def template DataImmConstructor {{ |
| %(class_name)s::%(class_name)s(ExtMachInst machInst, |
| IntRegIndex _dest, |
| IntRegIndex _op1, |
| uint32_t _imm, |
| bool _rotC) |
| : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, |
| _dest, _op1, _imm, _rotC) |
| { |
| %(constructor)s; |
| if (!(condCode == COND_AL || condCode == COND_UC)) { |
| for (int x = 0; x < _numDestRegs; x++) { |
| _srcRegIdx[_numSrcRegs++] = _destRegIdx[x]; |
| } |
| } |
| |
| if (%(is_branch)s && !isFloating() && !isVector()){ |
| flags[IsControl] = true; |
| flags[IsIndirectControl] = true; |
| if (condCode == COND_AL || condCode == COND_UC) |
| flags[IsUncondControl] = true; |
| else |
| flags[IsCondControl] = true; |
| } |
| } |
| }}; |
| |
| def template DataRegDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| public: |
| // Constructor |
| %(class_name)s(ExtMachInst machInst, IntRegIndex _dest, |
| IntRegIndex _op1, IntRegIndex _op2, |
| int32_t _shiftAmt, ArmShiftType _shiftType); |
| Fault execute(ExecContext *, Trace::InstRecord *) const override; |
| }; |
| }}; |
| |
| def template DataRegConstructor {{ |
| %(class_name)s::%(class_name)s(ExtMachInst machInst, |
| IntRegIndex _dest, |
| IntRegIndex _op1, |
| IntRegIndex _op2, |
| int32_t _shiftAmt, |
| ArmShiftType _shiftType) |
| : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, |
| _dest, _op1, _op2, _shiftAmt, _shiftType) |
| { |
| %(constructor)s; |
| if (!(condCode == COND_AL || condCode == COND_UC)) { |
| for (int x = 0; x < _numDestRegs; x++) { |
| _srcRegIdx[_numSrcRegs++] = _destRegIdx[x]; |
| } |
| } |
| |
| if (%(is_branch)s && !isFloating() && !isVector()){ |
| flags[IsControl] = true; |
| flags[IsIndirectControl] = true; |
| if (condCode == COND_AL || condCode == COND_UC) |
| flags[IsUncondControl] = true; |
| else |
| flags[IsCondControl] = true; |
| |
| if (%(is_ras_pop)s) { |
| flags[IsReturn] = true; |
| } |
| } |
| |
| } |
| }}; |
| |
| def template DataRegRegDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| public: |
| // Constructor |
| %(class_name)s(ExtMachInst machInst, IntRegIndex _dest, |
| IntRegIndex _op1, IntRegIndex _op2, IntRegIndex _shift, |
| ArmShiftType _shiftType); |
| Fault execute(ExecContext *, Trace::InstRecord *) const override; |
| }; |
| }}; |
| |
| def template DataRegRegConstructor {{ |
| %(class_name)s::%(class_name)s(ExtMachInst machInst, |
| IntRegIndex _dest, |
| IntRegIndex _op1, |
| IntRegIndex _op2, |
| IntRegIndex _shift, |
| ArmShiftType _shiftType) |
| : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, |
| _dest, _op1, _op2, _shift, _shiftType) |
| { |
| %(constructor)s; |
| if (!(condCode == COND_AL || condCode == COND_UC)) { |
| for (int x = 0; x < _numDestRegs; x++) { |
| _srcRegIdx[_numSrcRegs++] = _destRegIdx[x]; |
| } |
| } |
| } |
| }}; |
| |
| def template PredOpExecute {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| uint64_t resTemp = 0; |
| resTemp = resTemp; |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| if (%(predicate_test)s) |
| { |
| %(code)s; |
| if (fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| } else { |
| xc->setPredicate(false); |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template QuiescePredOpExecute {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| uint64_t resTemp = 0; |
| resTemp = resTemp; |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| if (%(predicate_test)s) |
| { |
| %(code)s; |
| if (fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| } else { |
| xc->setPredicate(false); |
| PseudoInst::quiesceSkip(xc->tcBase()); |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template QuiescePredOpExecuteWithFixup {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| uint64_t resTemp = 0; |
| resTemp = resTemp; |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| if (%(predicate_test)s) |
| { |
| %(code)s; |
| if (fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| } else { |
| xc->setPredicate(false); |
| %(pred_fixup)s; |
| PseudoInst::quiesceSkip(xc->tcBase()); |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template DataDecode {{ |
| if (machInst.opcode4 == 0) { |
| if (machInst.sField == 0) |
| return new %(class_name)sImm(machInst); |
| else |
| return new %(class_name)sImmCc(machInst); |
| } else { |
| if (machInst.sField == 0) |
| return new %(class_name)s(machInst); |
| else |
| return new %(class_name)sCc(machInst); |
| } |
| }}; |
| |
| def template DataImmDecode {{ |
| if (machInst.sField == 0) |
| return new %(class_name)s(machInst); |
| else |
| return new %(class_name)sCc(machInst); |
| }}; |
