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(a) Using a 4-bit binary adder with inputs (A, B, and Cin), outputs (F and Cout), and one selection bit (S0), design an arithmetic circuit as follows:

S0 FUNCTION TO BE PERFORMED

0 A plus B

1 B Plus 1

(b) Using another selection bit S1, modify the circuit of i) to include the arithmetic and logic functions as follows:

__S1__ __S0__ __FUNCTION TO BE PERFORMED __

0 0 F = A plus B

0 1 F = B

1 0 Shift left (logical) A

1 1 F = A̅

(c) Design a 4-bit logic unit that will function as follows:

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