| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2007 MIPS Technologies, Inc. |
| // 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: Korey Sewell |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // Integer operate instructions |
| // |
| output header {{ |
| #include <iostream> |
| using namespace std; |
| /** |
| * Base class for integer operations. |
| */ |
| class IntOp : public MipsStaticInst |
| { |
| protected: |
| |
| /// Constructor |
| IntOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| MipsStaticInst(mnem, _machInst, __opClass) |
| { |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| |
| class HiLoOp: public IntOp |
| { |
| protected: |
| |
| /// Constructor |
| HiLoOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| IntOp(mnem, _machInst, __opClass) |
| { |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| class HiLoRsSelOp: public HiLoOp |
| { |
| protected: |
| |
| /// Constructor |
| HiLoRsSelOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| HiLoOp(mnem, _machInst, __opClass) |
| { |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| class HiLoRdSelOp: public HiLoOp |
| { |
| protected: |
| |
| /// Constructor |
| HiLoRdSelOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| HiLoOp(mnem, _machInst, __opClass) |
| { |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| class HiLoRdSelValOp: public HiLoOp |
| { |
| protected: |
| |
| /// Constructor |
| HiLoRdSelValOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| HiLoOp(mnem, _machInst, __opClass) |
| { |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| class IntImmOp : public MipsStaticInst |
| { |
| protected: |
| |
| int16_t imm; |
| int32_t sextImm; |
| uint32_t zextImm; |
| |
| /// Constructor |
| IntImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) : |
| MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM), |
| sextImm(INTIMM),zextImm(0x0000FFFF & INTIMM) |
| { |
| //If Bit 15 is 1 then Sign Extend |
| int32_t temp = sextImm & 0x00008000; |
| if (temp > 0 && strcmp(mnemonic,"lui") != 0) { |
| sextImm |= 0xFFFF0000; |
| } |
| } |
| |
| std::string generateDisassembly( |
| Addr pc, const SymbolTable *symtab) const override; |
| }; |
| |
| }}; |
| |
| // HiLo instruction class execute method template. |
| def template HiLoExecute {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| |
| %(fp_enable_check)s; |
| %(op_decl)s; |
| %(op_rd)s; |
| %(code)s; |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| return fault; |
| } |
| }}; |
| |
| // HiLoRsSel instruction class execute method template. |
| def template HiLoRsSelExecute {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| |
| %(op_decl)s; |
| |
| if( ACSRC > 0 && !isDspEnabled(xc) ) |
| { |
| fault = std::make_shared<DspStateDisabledFault>(); |
| } |
| else |
| { |
| %(op_rd)s; |
| %(code)s; |
| } |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| return fault; |
| } |
| }}; |
| |
| // HiLoRdSel instruction class execute method template. |
| def template HiLoRdSelExecute {{ |
| Fault %(class_name)s::execute( |
| ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| |
| %(op_decl)s; |
| |
| if( ACDST > 0 && !isDspEnabled(xc) ) |
| { |
| fault = std::make_shared<DspStateDisabledFault>(); |
| } |
| else |
| { |
| %(op_rd)s; |
| %(code)s; |
| } |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| return fault; |
| } |
| }}; |
| |
| //Outputs to decoder.cc |
| output decoder {{ |
| std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| // just print the first dest... if there's a second one, |
| // it's generally implicit |
| if (_numDestRegs > 0) { |
| printReg(ss, _destRegIdx[0]); |
| ss << ", "; |
| } |
| |
| // just print the first two source regs... if there's |
| // a third one, it's a read-modify-write dest (Rc), |
| // e.g. for CMOVxx |
| if (_numSrcRegs > 0) { |
| printReg(ss, _srcRegIdx[0]); |
| } |
| |
| if (_numSrcRegs > 1) { |
| ss << ", "; |
| printReg(ss, _srcRegIdx[1]); |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string HiLoOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| //Destination Registers are implicit for HI/LO ops |
| if (_numSrcRegs > 0) { |
| printReg(ss, _srcRegIdx[0]); |
| } |
| |
| if (_numSrcRegs > 1) { |
| ss << ", "; |
| printReg(ss, _srcRegIdx[1]); |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string HiLoRsSelOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| if (_numDestRegs > 0 && _destRegIdx[0].index() < 32) { |
| printReg(ss, _destRegIdx[0]); |
| } else if (_numSrcRegs > 0 && _srcRegIdx[0].index() < 32) { |
| printReg(ss, _srcRegIdx[0]); |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string HiLoRdSelOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| if (_numDestRegs > 0 && _destRegIdx[0].index() < 32) { |
| printReg(ss, _destRegIdx[0]); |
| } else if (_numSrcRegs > 0 && _srcRegIdx[0].index() < 32) { |
| printReg(ss, _srcRegIdx[0]); |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string HiLoRdSelValOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| if (_numDestRegs > 0 && _destRegIdx[0].index() < 32) { |
| printReg(ss, _destRegIdx[0]); |
| } else if (_numSrcRegs > 0 && _srcRegIdx[0].index() < 32) { |
| printReg(ss, _srcRegIdx[0]); |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| std::stringstream ss; |
| |
| ccprintf(ss, "%-10s ", mnemonic); |
| |
| if (_numDestRegs > 0) { |
| printReg(ss, _destRegIdx[0]); |
| } |
| |
| ss << ", "; |
| |
| if (_numSrcRegs > 0) { |
| printReg(ss, _srcRegIdx[0]); |
| ss << ", "; |
| } |
| |
| if(strcmp(mnemonic,"lui") == 0) |
| ccprintf(ss, "0x%x ", sextImm); |
| else |
| ss << (int) sextImm; |
| |
| return ss.str(); |
| } |
| |
| }}; |
| |
| def format IntOp(code, *opt_flags) {{ |
| iop = InstObjParams(name, Name, 'IntOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = RegNopCheckDecode.subst(iop) |
| exec_output = BasicExecute.subst(iop) |
| }}; |
| |
| def format IntImmOp(code, *opt_flags) {{ |
| iop = InstObjParams(name, Name, 'IntImmOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = ImmNopCheckDecode.subst(iop) |
| exec_output = BasicExecute.subst(iop) |
| }}; |
| |
| def format HiLoRsSelOp(code, *opt_flags) {{ |
| iop = InstObjParams(name, Name, 'HiLoRsSelOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = HiLoRsSelExecute.subst(iop) |
| }}; |
| |
| def format HiLoRdSelOp(code, *opt_flags) {{ |
| iop = InstObjParams(name, Name, 'HiLoRdSelOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = HiLoRdSelExecute.subst(iop) |
| }}; |
| |
| def format HiLoRdSelValOp(code, *opt_flags) {{ |
| |
| if '_sd' in code: |
| code = 'int64_t ' + code |
| elif '_ud' in code: |
| code = 'uint64_t ' + code |
| |
| code += 'HI_RD_SEL = val<63:32>;\n' |
| code += 'LO_RD_SEL = val<31:0>;\n' |
| |
| iop = InstObjParams(name, Name, 'HiLoRdSelOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = HiLoRdSelExecute.subst(iop) |
| }}; |
| |
| def format HiLoOp(code, *opt_flags) {{ |
| iop = InstObjParams(name, Name, 'HiLoOp', code, opt_flags) |
| header_output = BasicDeclare.subst(iop) |
| decoder_output = BasicConstructor.subst(iop) |
| decode_block = BasicDecode.subst(iop) |
| exec_output = HiLoExecute.subst(iop) |
| }}; |
