165 lines
4.8 KiB
Text
165 lines
4.8 KiB
Text
////////////////////////////////////////////////////////////////////
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//
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// Integer operate instructions
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//
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output header {{
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/**
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* Base class for integer operations.
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*/
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class IntOp : public SparcStaticInst
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{
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protected:
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// Constructor
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IntOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
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SparcStaticInst(mnem, _machInst, __opClass)
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{
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}
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std::string generateDisassembly(Addr pc,
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const SymbolTable *symtab) const;
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};
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/**
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* Base class for 10 bit immediate integer operations.
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*/
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class IntOpImm10 : public IntOp
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{
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protected:
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// Constructor
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IntOpImm10(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
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IntOp(mnem, _machInst, __opClass), imm(SIMM10)
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{
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}
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uint32_t imm;
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};
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/**
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* Base class for 13 bit immediate integer operations.
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*/
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class IntOpImm13 : public IntOp
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{
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protected:
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// Constructor
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IntOpImm13(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
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IntOp(mnem, _machInst, __opClass), imm(SIMM13)
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{
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}
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uint32_t imm;
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};
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}};
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output decoder {{
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std::string IntOp::generateDisassembly(Addr pc,
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const SymbolTable *symtab) const
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{
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return "Integer instruction\n";
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}
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}};
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def template IntOpExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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Fault fault = NoFault;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s;
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//Write the resulting state to the execution context
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if(fault == NoFault)
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%(op_wb)s;
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return fault;
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}
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}};
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def template IntOpCcExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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Fault fault;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s;
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//Write the resulting state to the execution context
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if(fault == NoFault)
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{
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%(op_wb)s;
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CcrIccN = Rd & (1 << 63);
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CcrIccZ = (Rd == 0);
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CcrIccV = ivValue;
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CcrIccC = icValue;
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CcrXccN = Rd & (1 << 31);
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CcrXccZ = ((Rd & 0xFFFFFFFF) == 0);
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CcrXccV = xvValue;
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CcrXccC = xcValue;
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}
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return fault;
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}
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}};
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def template IntOpCcResExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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Fault fault;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s;
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//Write the resulting state to the execution context
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if(fault == NoFault)
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{
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%(op_wb)s;
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CcrIccN = Rd & (1 << 63);
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CcrIccZ = (Rd == 0);
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CcrXccN = Rd & (1 << 31);
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CcrXccZ = ((Rd & 0xFFFFFFFF) == 0);
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CcrIccV = CcrIccC = CcrXccV = CcrXccC = 0;
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}
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return fault;
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}
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}};
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let {{
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def doIntFormat(code, execTemplate, name, Name, opt_flags):
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(usesImm, cblk, immCblk, rString, iString) = splitOutImm(code)
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iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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exec_output = execTemplate.subst(iop)
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if usesImm:
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imm_iop = InstObjParams(name, Name + 'Imm', 'IntOpImm' + iString,
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immCblk, opt_flags)
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header_output += BasicDeclare.subst(imm_iop)
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decoder_output += BasicConstructor.subst(imm_iop)
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exec_output += execTemplate.subst(imm_iop)
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decode_block = ROrImmDecode.subst(iop)
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else:
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decode_block = BasicDecode.subst(iop)
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}};
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// Primary format for integer operate instructions:
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def format IntOp(code, *opt_flags) {{
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doIntFormat(code, IntOpExecute, name, Name, opt_flags)
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}};
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// Primary format for integer operate instructions:
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def format IntOpCc(code, icValue, ivValue, xcValue, xvValue, *opt_flags) {{
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for (marker, value) in (('ivValue', ivValue), ('icValue', icValue),
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('xvValue', xvValue), ('xcValue', xcValue)):
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code.replace(marker, value)
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doIntFormat(code, IntOpCcExecute, name, Name, opt_flags)
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}};
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// Primary format for integer operate instructions:
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def format IntOpCcRes(code, *opt_flags) {{
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doIntFormat(code, IntOpCcResExecute, name, Name, opt_flags)
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}};
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