This project implements a 4-bit Parallel Adder/Subtractor in Verilog using a Ripple Carry Adder (RCA) and logic gates like XOR, AND, and NOT. The design can perform both addition and subtraction based ...

Abstract: This paper proposes two novel designs of Adder/Subtractor using reversible logic gates. The first design is an implementation of two's complement Adder/Subtractor suitable for ...