Design an arithmetic circuit with two selection variables S₁ and S₀ and two n- bit data inputs A and B. The circuit generates the following eight arithmetic operations in conjunction with carry C_in:

Draw the logic diagram for the two least significant bits of the arithmetic circuit.

Transcribed Image Text:

S So 0 0 0 1 1 0 1 1 Cin = 0 F = A + B (add) F = A + B F = A 1 (decrement) F = A (1s complement) Cin = 1 F = A + B + 1 (subtract A - B) F = A + B + 1 (subtract B - A) F = F = A + 1 (increment) A + 1 (2s complement)