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 ...

•Designed CMOS schematic using Manchester carry chain and carry look ahead architecture. •Created layout and performed DRC, LVS, and post layout extraction. •Performed pre-layout and post-layout ...

This Verilog module implements a 4-bit Adder-Subtractor circuit, allowing both addition and subtraction operations based on a control signal. The design uses simple combinational logic to compute the ...

This repository contains Verilog source files for a simple 4-bit signed calculator. The calculator can perform addition and subtraction using ripple-carry logic and detects overflow conditions. It was ...

Diving into the heart of digital logic, the 4-bit adder stands as a fundamental building block in computer architecture, demonstrating how binary arithmetic operations are executed within electronic ...