if (a[4]>>1)&1 == 0 {
		return 1
	}
	// amd64:"BTL\t[$]0"
	if (a[5]>>0)&1 == 0 {
		return 1
	}
	// amd64:"BTL\t[$]7"
	if (a[6]>>5)&4 == 0 {
		return 1
	}
	return 0
}

func bitcheck64_var(a, b uint64) (n int) {
	// amd64:"BTQ"
	if a&(1<<(b&63)) != 0 {
		return 1
	}
	// amd64:"BTQ",-"BT.\t[$]0"
	if (b>>(a&63))&1 != 0 {
		return 1
	}
	return 0
}