An Extensive Survey: Designing of ALU Using Reversible Logic Gates

In this review paper we reviewed that the Programmable reversible logic is emerging as a prospective logic design style for implementation in modern nanotechnology and quantum computing with minimal impact on circuit heat generation. Many researchers provide advances in reversible logic using and quantum computer algorithms allow for improved computer architecture and arithmetic logic unit designs a 2*2 Swap gate which is a reduced implementation in terms of quantum cost and delay to the previous Swap gate is presented. Next, a novel 3*3 programmable UPG gate capable of calculating the fundamental logic calculations is presented and established, and its advantages over the Toffoli and Peres gates are discuss. The UPG is then implemented in a reduced design for calculating n-bit AND, n-bit OR and n-bit ZERO calculations. The UPG and RC are implemented in the design of novel sequential and treebased comparators. Then, two novel 4*4 reversible logic gates (MRG and PAOG) with minimal delay, and may be configured to create a variety of logical calculations on fixed output lines based on programmable select inputs lines. Then, reversible implementations of each research paper are analyzed and compared. Keywords-Index Terms Arithmetic Logic Unit (ALU); Reversible Logic; Quantum Computing