Aim:to design, simulate, and verify a 4-bit binary adder-subtractor circuit. This circuit should be capable of performing both addition and subtraction based on a control signal (mode). Operation: The ...

A 4-bit Ripple Carry Adder consists of four full adders connected in series. Each full adder takes in two input bits (one from each operand) and a carry-in bit, and produces a sum bit and a carry-out ...