← Ch.1
Binary Subtraction
Interact
A − B
(two's complement)
Carry
A
− B
Sum
-128
64
32
16
8
4
2
1
0
1
0
1
1
1
1
1
0
1
0
0
0
1
0
0
A
01011111
(95)
−
B
01000100
(68)
Carry out —
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Edit A
Edit B
