Answer to Question #246333 in Electrical Engineering for Hehehehehe

Question #246333
Task 1: You are to design a 4-bit arithmetic unit that consists of a 4-bit adder/subtractor circuit. The arithmetic unit takes as inputs two 4-bit numbers (A and B) and one control input (M) add/subtract selector that selects the type of operation the unit will perform. When the input control is '0', the input numbers are added. When it is set to '1', the two input numbers are subtracted (AB).

• Design and construct a 4-bit adder/subtractor circuit. Draw the produced circuit.
Expert's answer

It is one of the components of the ALU (Arithmetic Logic Unit). This Circuit Requires prerequisite knowledge of Exor Gate, Binary Addition and Subtraction, Full Adder. The circuit consists of 4 full adders since we are performing operation on 4-bit numbers.

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