Module Complement2{
	// we use binary.and to get a number in range of byte 0 to 255
	byte k, v
	v=random(1, 255)  ' there is no two's complement for zero
	z=binary.and(binary.not(v)+1, 0xFF)
	print v
	print z
	print z=255-v+1 // z is type of byte always positive
	print sint(z+0xFFFFFF00)=-v  // using 4bytes, we add unsinged 0xFFFFFF00
}
Complement2
Complement2