V4FNMADDPS 99(R15)(R15*1), [Z21-Z24], K3, Z12      // 62125743aaa43f63000000
	V4FNMADDPS (DX), [Z21-Z24], K3, Z12                // 62725743aa22
	V4FNMADDSS -17(BP)(SI*8), [X1-X4], K4, X11         // 6272770cab9cf5efffffff or 6272772cab9cf5efffffff or 6272774cab9cf5efffffff
	V4FNMADDSS (R15), [X1-X4], K4, X11                 // 6252770cab1f or 6252772cab1f or 6252774cab1f

// in the usual way by the opcode itself. Asm must use AMRC for both instructions, so
// we return the opcode for MRC so that asm doesn't need to import obj/arm.
func ARMMRCOffset(op obj.As, cond string, x0, x1, x2, x3, x4, x5 int64) (offset int64, op0 obj.As, ok bool) {
	op1 := int64(0)
	if op == arm.AMRC {
		op1 = 1
	}
	bits, ok := ParseARMCondition(cond)
	if !ok {
		return
	}
	offset = (0xe << 24) | // opcode