diff options
Diffstat (limited to 'src/arch/mips/isa/formats/int.isa')
| -rw-r--r-- | src/arch/mips/isa/formats/int.isa | 155 |
1 files changed, 133 insertions, 22 deletions
diff --git a/src/arch/mips/isa/formats/int.isa b/src/arch/mips/isa/formats/int.isa index 7d38b9ff5..99aee828f 100644 --- a/src/arch/mips/isa/formats/int.isa +++ b/src/arch/mips/isa/formats/int.isa @@ -4,8 +4,6 @@ // // Integer operate instructions // - -//Outputs to decoder.hh output header {{ #include <iostream> using namespace std; @@ -25,6 +23,34 @@ output header {{ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; }; + + 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; + }; + + class HiLoMiscOp: public HiLoOp + { + protected: + + /// Constructor + HiLoMiscOp(const char *mnem, MachInst _machInst, OpClass __opClass) : + HiLoOp(mnem, _machInst, __opClass) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; + }; + + class IntImmOp : public MipsStaticInst { protected: @@ -52,6 +78,33 @@ output header {{ }}; +// HiLo<Misc> instruction class execute method template. +// Mainly to get instruction trace data to print out +// correctly +def template HiLoExecute {{ + Fault %(class_name)s::execute(%(CPU_exec_context)s *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; + //If there are 2 Destination Registers then + //concatenate the values for the traceData + if(traceData && _numDestRegs == 2) { + uint64_t hilo_final_val = (uint64_t)HI << 32 | LO; + traceData->setData(hilo_final_val); + } + } + return fault; + } +}}; + //Outputs to decoder.cc output decoder {{ std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const @@ -64,7 +117,7 @@ output decoder {{ // it's generally implicit if (_numDestRegs > 0) { printReg(ss, _destRegIdx[0]); - ss << ","; + ss << ", "; } // just print the first two source regs... if there's @@ -75,13 +128,47 @@ output decoder {{ } if (_numSrcRegs > 1) { - ss << ","; + 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 HiLoMiscOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const + { + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + if (_numDestRegs > 0 && _destRegIdx[0] < 32) { + printReg(ss, _destRegIdx[0]); + } else if (_numSrcRegs > 0 && _srcRegIdx[0] < 32) { + printReg(ss, _srcRegIdx[0]); + } + + return ss.str(); + } + std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const { std::stringstream ss; @@ -92,15 +179,15 @@ output decoder {{ printReg(ss, _destRegIdx[0]); } - ss << ","; + ss << ", "; if (_numSrcRegs > 0) { printReg(ss, _srcRegIdx[0]); - ss << ","; + ss << ", "; } if( mnemonic == "lui") - ccprintf(ss, "%08p ", sextImm); + ccprintf(ss, "0x%x ", sextImm); else ss << (int) sextImm; @@ -109,23 +196,47 @@ output decoder {{ }}; -//Used by decoder.isa def format IntOp(code, *opt_flags) {{ - orig_code = code - cblk = CodeBlock(code) - - # Figure out if we are creating a IntImmOp or a IntOp - # by looking at the instruction name - iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags) - strlen = len(name) - if name[strlen-1] == 'i' or name[strlen-2:] == 'iu': - iop = InstObjParams(name, Name, 'IntImmOp', cblk, opt_flags) - - header_output = BasicDeclare.subst(iop) - decoder_output = BasicConstructor.subst(iop) - decode_block = OperateNopCheckDecode.subst(iop) - exec_output = BasicExecute.subst(iop) + iop = InstObjParams(name, Name, 'IntOp', CodeBlock(code), opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = OperateNopCheckDecode.subst(iop) + exec_output = BasicExecute.subst(iop) +}}; + +def format IntImmOp(code, *opt_flags) {{ + iop = InstObjParams(name, Name, 'IntImmOp', CodeBlock(code), opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = OperateNopCheckDecode.subst(iop) + exec_output = BasicExecute.subst(iop) }}; +def format HiLoOp(code, *opt_flags) {{ + if '.sd' in code: + code = 'int64_t ' + code + elif '.ud' in code: + code = 'uint64_t ' + code + + code += 'HI = val<63:32>;\n' + code += 'LO = val<31:0>;\n' + + iop = InstObjParams(name, Name, 'HiLoOp', CodeBlock(code), opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = OperateNopCheckDecode.subst(iop) + exec_output = HiLoExecute.subst(iop) +}}; + +def format HiLoMiscOp(code, *opt_flags) {{ + iop = InstObjParams(name, Name, 'HiLoMiscOp', CodeBlock(code), opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = OperateNopCheckDecode.subst(iop) + exec_output = HiLoExecute.subst(iop) +}}; + + + |