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INPUTS
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OUTPUTS
|
|
Asign
|
Bsign
|
CARRY IN
|
CARRY OUT
|
SUMsign
|
|
0
|
0
|
0
|
0
|
0
|
|
0
|
0
|
1
|
0
|
1
|
|
0
|
1
|
0
|
0
|
1
|
|
0
|
1
|
1
|
1
|
0
|
|
1
|
0
|
0
|
0
|
1
|
|
1
|
0
|
1
|
1
|
0
|
|
1
|
1
|
0
|
1
|
0
|
|
1
|
1
|
1
|
1
|
1
|
|
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The full adder knows nothing about the difference between signed and unsigned numbers.
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In 2's complement binary representation, the sign bit is simply the leftmost, or most significant, bit of the data type.
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The full adder circuit will be adding the sign bit column just as any other bit.
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