gem5/src/arch/x86/isa/microops/specop.isa

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// Authors: Gabe Black

//////////////////////////////////////////////////////////////////////////
//
// Fault Microop
//
//////////////////////////////////////////////////////////////////////////

def template MicroFaultExecute {{
        Fault %(class_name)s ::execute(%(CPU_exec_context)s *xc,
                Trace::InstRecord *traceData) const
        {
            //Return the fault we were constructed with
            return fault;
        }
}};

def template MicroFaultDeclare {{
    class %(class_name)s : public X86MicroopBase
    {
      protected:
        Fault fault;
        void buildMe();

      public:
        %(class_name)s(ExtMachInst _machInst,
                const char * instMnem,
                bool isMicro, bool isDelayed, bool isFirst, bool isLast,
                Fault _fault);

        %(class_name)s(ExtMachInst _machInst,
                const char * instMnem,
                Fault _fault);

        %(BasicExecDeclare)s
    };
}};

def template MicroFaultConstructor {{

    inline void %(class_name)s::buildMe()
    {
        %(constructor)s;
    }

    inline %(class_name)s::%(class_name)s(
            ExtMachInst machInst, const char * instMnem, Fault _fault) :
        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
                false, false, false, false, %(op_class)s), fault(_fault)
    {
        buildMe();
    }

    inline %(class_name)s::%(class_name)s(
            ExtMachInst machInst, const char * instMnem,
            bool isMicro, bool isDelayed, bool isFirst, bool isLast,
            Fault _fault) :
        %(base_class)s(machInst, "%(mnemonic)s", instMnem,
                isMicro, isDelayed, isFirst, isLast, %(op_class)s),
                fault(_fault)
    {
        buildMe();
    }
}};

let {{
    # This microop takes in a single parameter, a fault to return.
    iop = InstObjParams("fault", "GenFault", 'X86MicroopBase', {"code" : ""})
    header_output += MicroFaultDeclare.subst(iop)
    decoder_output += MicroFaultConstructor.subst(iop)
    exec_output += MicroFaultExecute.subst(iop)
}};