@Test
public void testAdd2() {

	byte[] two = new byte[32];
	two[31] = (byte) 0xff; // 0x000000000000000000000000000000000000000000000000000000000000ff
	
	DataWord x = new DataWord(two);
	x.add(new DataWord(two));
	System.out.println(Hex.toHexString(x.getData()));
	
	DataWord y = new DataWord(two);
	y.add2(new DataWord(two));
	System.out.println(Hex.toHexString(y.getData()));
}