gem5/arch/sparc/isa/formats/integerop.isa

////////////////////////////////////////////////////////////////////
//
// Integer operate instructions
//

output header {{
        /**
         * Base class for integer operations.
         */
        class IntOp : public SparcStaticInst
        {
          protected:
            // Constructor
            IntOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
                SparcStaticInst(mnem, _machInst, __opClass)
            {
            }

            std::string generateDisassembly(Addr pc,
                const SymbolTable *symtab) const;
        };

        /**
         * Base class for 10 bit immediate integer operations.
         */
        class IntOpImm10 : public IntOp
        {
          protected:
            // Constructor
            IntOpImm10(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
                IntOp(mnem, _machInst, __opClass), imm(SIMM10)
            {
            }

            uint32_t imm;
        };

        /**
         * Base class for 13 bit immediate integer operations.
         */
        class IntOpImm13 : public IntOp
        {
          protected:
            // Constructor
            IntOpImm13(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
                IntOp(mnem, _machInst, __opClass), imm(SIMM13)
            {
            }

            uint32_t imm;
        };
}};

output decoder {{
        std::string IntOp::generateDisassembly(Addr pc,
                const SymbolTable *symtab) const
        {
            return "Integer instruction\n";
        }
}};

def template IntOpExecute {{
        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
                Trace::InstRecord *traceData) const
        {
            Fault fault = NoFault;

            %(op_decl)s;
            %(op_rd)s;
            %(code)s;

            //Write the resulting state to the execution context
            if(fault == NoFault)
                %(op_wb)s;
            return fault;
        }
}};

def template IntOpCcExecute {{
        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
                Trace::InstRecord *traceData) const
        {
            Fault fault;

            %(op_decl)s;
            %(op_rd)s;
            %(code)s;

            //Write the resulting state to the execution context
            if(fault == NoFault)
            {
                %(op_wb)s;
                CcrIccN = Rd & (1 << 63);
                CcrIccZ = (Rd == 0);
                CcrIccV = ivValue;
                CcrIccC = icValue;
                CcrXccN = Rd & (1 << 31);
                CcrXccZ = ((Rd & 0xFFFFFFFF) == 0);
                CcrXccV = xvValue;
                CcrXccC = xcValue;
            }
            return fault;
        }
}};

def template IntOpCcResExecute {{
        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
                Trace::InstRecord *traceData) const
        {
            Fault fault;

            %(op_decl)s;
            %(op_rd)s;
            %(code)s;

            //Write the resulting state to the execution context
            if(fault == NoFault)
            {
                %(op_wb)s;
                CcrIccN = Rd & (1 << 63);
                CcrIccZ = (Rd == 0);
                CcrXccN = Rd & (1 << 31);
                CcrXccZ = ((Rd & 0xFFFFFFFF) == 0);
                CcrIccV = CcrIccC = CcrXccV = CcrXccC = 0;
            }
            return fault;
        }
}};

let {{
    def doIntFormat(code, execTemplate, name, Name, opt_flags):
        (usesImm, cblk, immCblk, rString, iString) = splitOutImm(code)
        iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags)
        header_output = BasicDeclare.subst(iop)
        decoder_output = BasicConstructor.subst(iop)
        exec_output = execTemplate.subst(iop)
        if usesImm:
            imm_iop = InstObjParams(name, Name + 'Imm', 'IntOpImm' + iString,
                    immCblk, opt_flags)
            header_output += BasicDeclare.subst(imm_iop)
            decoder_output += BasicConstructor.subst(imm_iop)
            exec_output += execTemplate.subst(imm_iop)
            decode_block = ROrImmDecode.subst(iop)
        else:
            decode_block = BasicDecode.subst(iop)
}};

// Primary format for integer operate instructions:
def format IntOp(code, *opt_flags) {{
    doIntFormat(code, IntOpExecute, name, Name, opt_flags)
}};

// Primary format for integer operate instructions:
def format IntOpCc(code, icValue, ivValue, xcValue, xvValue, *opt_flags) {{
    for (marker, value) in (('ivValue', ivValue), ('icValue', icValue),
                   ('xvValue', xvValue), ('xcValue', xcValue)):
            code.replace(marker, value)
    doIntFormat(code, IntOpCcExecute, name, Name, opt_flags)
}};

// Primary format for integer operate instructions:
def format IntOpCcRes(code, *opt_flags) {{
    doIntFormat(code, IntOpCcResExecute, name, Name, opt_flags)
}};