PNOP                                    // 0700000000000000
	PSTB R1, $1, 12345678(R2)               // 061000bc9822614e
	PSTD R1, $1, 12345678(R2)               // 041000bcf422614e
	PSTFD F1, $1, 12345678(R2)              // 061000bcd822614e
	PSTFS F1, $1, 123456789(R7)             // 0610075bd027cd15
	PSTH R1, $1, 12345678(R2)               // 061000bcb022614e
	PSTQ R2, $1, 12345678(R2)               // 041000bcf042614e

	"XXSPLTI32DX",
	"XXPERMX",
	"XXEVAL",
	"XXBLENDVW",
	"XXBLENDVH",
	"XXBLENDVD",
	"XXBLENDVB",
	"PSTXVP",
	"PSTXV",
	"PSTXSSP",
	"PSTXSD",
	"PSTW",
	"PSTQ",
	"PSTH",
	"PSTFS",
	"PSTFD",
	"PSTD",
	"PSTB",
	"PNOP",
	"PMXVI8GER4SPP",
	"PMXVI8GER4PP",
	"PMXVI8GER4",
	"PMXVI4GER8PP",
	"PMXVI4GER8",
	"PMXVI16GER2SPP",
	"PMXVI16GER2S",
	"PMXVI16GER2PP",

	PMXVI8GER4:     "pmxvi8ger4",
	PMXVI8GER4PP:   "pmxvi8ger4pp",
	PMXVI8GER4SPP:  "pmxvi8ger4spp",
	PNOP:           "pnop",
	PSTB:           "pstb",
	PSTD:           "pstd",
	PSTFD:          "pstfd",
	PSTFS:          "pstfs",
	PSTH:           "psth",
	PSTQ:           "pstq",
	PSTW:           "pstw",
	PSTXSD:         "pstxsd",
	PSTXSSP:        "pstxssp",
	PSTXV:          "pstxv",

	// store instructions always have the memory operand at the end, no need to reorder
	// indexed stores handled separately
	case STB, STBU,
		STH, STHU,
		STW, STWU,
		STD, STDU,
		STFD, STFDU,
		STFS, STFSU,
		STQ, HASHST, HASHSTP:
		return op + " " + strings.Join(args, ",")

	case FCMPU, FCMPO, CMPD, CMPDI, CMPLD, CMPLDI, CMPW, CMPWI, CMPLW, CMPLWI:
		crf := int(inst.Args[0].(CondReg) - CR0)

		OPVCC(37, 0, 0, 0), // stwu
		OPVCC(38, 0, 0, 0), // stb
		OPVCC(39, 0, 0, 0), // stbu
		OPVCC(44, 0, 0, 0), // sth
		OPVCC(45, 0, 0, 0), // sthu
		OPVCC(47, 0, 0, 0), // stmw
		OPVCC(52, 0, 0, 0), // stfs
		OPVCC(53, 0, 0, 0), // stfsu
		OPVCC(54, 0, 0, 0), // stfd
		OPVCC(55, 0, 0, 0): // stfdu
		return D_FORM
	}
	return 0
}