"MOVD",
	"MOVH",
	"MOVHU",
	"MOVK",
	"MOVKW",
	"MOVN",
	"MOVNW",
	"MOVP",
	"MOVPD",
	"MOVPQ",
	"MOVPS",
	"MOVPSW",
	"MOVPW",
	"MOVW",
	"MOVWU",
	"MOVZ",
	"MOVZW",
	"MRS",
	"MSR",
	"MSUB",
	"MSUBW",
	"MUL",
	"MULW",
	"MVN",
	"MVNW",
	"NEG",
	"NEGS",
	"NEGSW",
	"NEGW",
	"NGC",
	"NGCS",
	"NGCSW",
	"NGCW",
	"NOOP",

The current Go assembler does not accept zero shifts, such as "op $0, Rd" and "op $(0<<(16|32|48)), Rd" instructions.

Examples:

	MOVK $(10<<32), R20     <=>      movk x20, #10, lsl #32
	MOVZW $(20<<16), R8     <=>      movz w8, #20, lsl #16
	MOVK $(0<<16), R10 will be reported as an error by the assembler.

Special Cases.

(1) umov is written as VMOV.

(2) br is renamed JMP, blr is renamed CALL.

func (c *ctxt7) omovlconst(as obj.As, p *obj.Prog, a *obj.Addr, rt int, os []uint32) (num uint8) {
	switch as {
	case AMOVW:
		d := uint32(a.Offset)
		// use MOVZW and MOVKW to load a constant to rt
		os[0] = c.opirr(p, AMOVZW)
		os[0] |= MOVCONST(int64(d), 0, rt)
		os[1] = c.opirr(p, AMOVKW)
		os[1] |= MOVCONST(int64(d), 1, rt)
		return 2

	case AMOVD: