src/arch/x86/isa/microops/limmop.isa

// Copyright (c) 2007 The Hewlett-Packard Development Company
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//////////////////////////////////////////////////////////////////////////
//
// LIMMOp Microop templates
//
//////////////////////////////////////////////////////////////////////////

def template MicroLimmOpExecute {{
    Fault
    %(class_name)s::execute(ExecContext *xc,
            Trace::InstRecord *traceData) const
    {
        %(op_decl)s;
        %(op_rd)s;
        %(code)s;
        %(op_wb)s;
        return NoFault;
    }
}};

def template MicroLimmOpDeclare {{
    class %(class_name)s : public %(base_class)s
    {
      private:
        %(reg_idx_arr_decl)s;

      public:
        template <typename Dest>
        %(class_name)s(ExtMachInst mach_inst, const char *inst_mnem,
                uint64_t set_flags, Dest _dest,
                uint64_t _imm, uint8_t data_size) :
        %(base_class)s(mach_inst, "%(mnemonic)s", inst_mnem, set_flags,
                %(op_class)s, { _dest, _imm }, data_size, 0)
    {
        %(set_reg_idx_arr)s;
        %(constructor)s;
    }

        Fault execute(ExecContext *, Trace::InstRecord *) const override;
    };
}};

let {{
    class LimmOp(X86Microop):
        def __init__(self, dest, imm, dataSize="env.dataSize"):
            self.className = "Limm"
            self.mnemonic = "limm"
            self.dest = dest
            if isinstance(imm, int):
                imm = "%dULL" % imm
            self.imm = imm
            self.dataSize = dataSize

        def getAllocator(self, microFlags):
            allocString = '''
                (%(dataSize)s >= 4) ?
                    (StaticInstPtr)(new %(class_name)sBig(machInst,
                        macrocodeBlock, %(flags)s, %(dest)s, %(imm)s,
                        %(dataSize)s)) :
                    (StaticInstPtr)(new %(class_name)s(machInst,
                        macrocodeBlock, %(flags)s, %(dest)s, %(imm)s,
                        %(dataSize)s))
            '''
            allocator = allocString % {
                "class_name" : self.className,
                "mnemonic" : self.mnemonic,
                "flags" : self.microFlagsText(microFlags),
                "dest" : self.dest, "imm" : self.imm,
                "dataSize" : self.dataSize}
            return allocator

    microopClasses["limm"] = LimmOp

    class LfpimmOp(X86Microop):
        def __init__(self, dest, imm, dataSize="env.dataSize"):
            self.className = "Lfpimm"
            self.mnemonic = "lfpimm"
            self.dest = dest
            if isinstance(imm, int):
                imm = "%dULL" % imm
            elif isinstance(imm, float):
                imm = "floatToBits64(%.16f)" % imm
            self.imm = imm
            self.dataSize = dataSize

        def getAllocator(self, microFlags):
            allocator = '''new %(class_name)s(machInst, macrocodeBlock,
                    %(flags)s, %(dest)s, %(imm)s, %(dataSize)s)''' % {
                "class_name" : self.className,
                "mnemonic" : self.mnemonic,
                "flags" : self.microFlagsText(microFlags),
                "dest" : self.dest, "imm" : self.imm,
                "dataSize" : self.dataSize}
            return allocator

    microopClasses["lfpimm"] = LfpimmOp
}};

let {{
    base = 'X86ISA::RegOpT<X86ISA::FoldedDestOp, X86ISA::Imm64Op>'
    # Build up the all register version of this micro op
    iops = [InstObjParams("limm", "Limm", base,
            {"code" : "DestReg = merge(DestReg, dest, imm64, dataSize);"}),
            InstObjParams("limm", "LimmBig", base,
            {"code" : "DestReg = imm64 & mask(dataSize * 8);"})]
    for iop in iops:
        header_output += MicroLimmOpDeclare.subst(iop)
        exec_output += MicroLimmOpExecute.subst(iop)

    base = 'X86ISA::RegOpT<X86ISA::FloatDestOp, X86ISA::Imm64Op>'
    iop = InstObjParams("lfpimm", "Lfpimm", base,
            {"code" : "FpDestReg_uqw = imm64"})
    header_output += MicroLimmOpDeclare.subst(iop)
    exec_output += MicroLimmOpExecute.subst(iop)
}};