STWCXCC:   "STWCCC",
	STDCXCC:   "STDCCC",
	LI:        "MOVD",
	LBZ:       "MOVBZ", STB: "MOVB",
	LBZU: "MOVBZU", STBU: "MOVBU",
	LHZ: "MOVHZ", LHA: "MOVH", STH: "MOVH",
	LHZU: "MOVHZU", STHU: "MOVHU",
	LWZ: "MOVWZ", LWA: "MOVW", STW: "MOVW",
	LWZU: "MOVWZU", STWU: "MOVWU",
	LD: "MOVD", STD: "MOVD",
	LDU: "MOVDU", STDU: "MOVDU",
	LFD: "FMOVD", STFD: "FMOVD",
	LFS: "FMOVS", STFS: "FMOVS",
	LFDX: "FMOVD", STFDX: "FMOVD",

func isLoadStoreOp(op Op) bool {
	switch op {
	case LBZ, LBZU, LBZX, LBZUX:
		return true
	case LHZ, LHZU, LHZX, LHZUX:
		return true
	case LHA, LHAU, LHAX, LHAUX:
		return true
	case LWZ, LWZU, LWZX, LWZUX:
		return true
	case LWA, LWAX, LWAUX:
		return true
	case LD, LDU, LDX, LDUX:
		return true
	case LQ:
		return true
	case STB, STBU, STBX, STBUX:
		return true

	LHZU:           "lhzu",
	LHZUX:          "lhzux",
	LHZX:           "lhzx",
	LMW:            "lmw",
	LSWI:           "lswi",
	LSWX:           "lswx",
	LWBRX:          "lwbrx",
	LWZ:            "lwz",
	LWZU:           "lwzu",
	LWZUX:          "lwzux",
	LWZX:           "lwzx",
	MCRF:           "mcrf",
	MCRFS:          "mcrfs",
	MFCR:           "mfcr",
	MFFS:           "mffs",

		OPVCC(58, 0, 0, 1),        // ldu
		OPVCC(58, 0, 0, 0) | 1<<1, // lwa
		OPVCC(62, 0, 0, 0),        // std
		OPVCC(62, 0, 0, 1):        //stdu
		return DS_FORM
	case OP_ADDI, // add
		OPVCC(32, 0, 0, 0), // lwz
		OPVCC(33, 0, 0, 0), // lwzu
		OPVCC(34, 0, 0, 0), // lbz
		OPVCC(35, 0, 0, 0), // lbzu
		OPVCC(40, 0, 0, 0), // lhz
		OPVCC(41, 0, 0, 0), // lhzu
		OPVCC(42, 0, 0, 0), // lha