return 1
	}
	return 0
}

func biton32(a, b uint32) (n uint32) {
	// amd64:"BTSL"
	n += b | (1 << (a & 31))

	// amd64:"ORL\t[$]-2147483648"
	n += a | (1 << 31)

	// amd64:"ORL\t[$]268435456"
	n += a | (1 << 28)

	// amd64:"ORL\t[$]1"
	n += a | (1 << 0)

	return n
}

func bitoff32(a, b uint32) (n uint32) {
	// amd64:"BTRL"
	n += b &^ (1 << (a & 31))

	// s390x:"FLOGR","MOVWZ"
	// ppc64x/power8:"ANDN","POPCNTW"
	// ppc64x/power9: "CNTTZW"
	// wasm:"I64Ctz"
	return bits.TrailingZeros32(n)
}

func TrailingZeros16(n uint16) int {
	// amd64:"BSFL","ORL\\t\\$65536"
	// 386:"BSFL\t"
	// arm:"ORR\t\\$65536","CLZ",-"MOVHU\tR"
	// arm64:"ORR\t\\$65536","RBITW","CLZW",-"MOVHU\tR",-"RBIT\t",-"CLZ\t"
	// s390x:"FLOGR","OR\t\\$65536"
	// ppc64x/power8:"POPCNTD","ORIS\\t\\$1"

		reg: regInfo{
			inputs: []inputInfo{
				{0, 239}, // AX CX DX BX BP SI DI
			},
			outputs: []outputInfo{
				{0, 239}, // AX CX DX BX BP SI DI
			},
		},
	},
	{
		name:         "ORL",
		argLen:       2,
		commutative:  true,
		resultInArg0: true,
		clobberFlags: true,
		asm:          x86.AORL,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 239}, // AX CX DX BX BP SI DI