1 xor 1 = 0
1 xor 0 = 1
0 xor 1 = 1
0 xor 0 = 0

1 or 1 = 1
1 or 0 = 1
0 or 1 = 1
0 or 0 = 0

1 and 1 = 1
1 and 0 = 0
0 and 1 = 0
0 and 0 = 0

bx	1010	1010
x	1000	1010
and	1000	1010

bx	1010	1010
x	1000	1010
or	1010	1010

bx	1010	1010
x	1000	1010
xor	0010	0000