1 (subtract) 0 (add) A4 B4 A3 B3 A2 B2 A1 B1 Cin 7483 Cout

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter28: Overcurrent Protection–fuses And Circuit Breakers
Section: Chapter Questions
Problem 11R: State four possible combinations of service equipment that meet the requirements of 110.9 and 110.10...
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The circuit shown below is a 4-bit adder subtractor.  The circuit subtracts by doing 2's complement arithmetic, where we take the 2's complement of the number being subtracted. 

The 2's complement process consists of 2 steps.  

Explain how the circuit shown below 

1.  Takes the complement of the number being subtracted; and

2.  Adds 1 to the complement.

1 (subtract)
0 (add)
A4 B4 A3 B3 A2 B2 A1 B1
Cin
7483
Cout
Transcribed Image Text:1 (subtract) 0 (add) A4 B4 A3 B3 A2 B2 A1 B1 Cin 7483 Cout
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