Design an arithmetic circuit with one selection variable S and two n-bit data inputs A and B. The circuit generates the following four arithmetic opera- tions in conjunction with the input carry Cin. Draw the logic diagram for the first two stages. S Cin = 0 Cin = 1 %3D D = A + B (add) D = A – 1 (decrement) D = A + 1 (increment) D = A + B + 1 (subtract) 1

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Design an arithmetic circuit with one selection variable S and two n-bit data
inputs A and B. The circuit generates the following four arithmetic opera-
tions in conjunction with the input carry Cin. Draw the logic diagram for the
first two stages.
4-15.
S
Cin
Cin = 1
D = A + B (add)
D = A – 1 (decrement)
D = A + 1 (increment)
D = A + B + 1 (subtract)
1
Transcribed Image Text:Design an arithmetic circuit with one selection variable S and two n-bit data inputs A and B. The circuit generates the following four arithmetic opera- tions in conjunction with the input carry Cin. Draw the logic diagram for the first two stages. 4-15. S Cin Cin = 1 D = A + B (add) D = A – 1 (decrement) D = A + 1 (increment) D = A + B + 1 (subtract) 1
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