Description And Synthetic Method Of Reversible Logic Based On Traditional Schematic Diagram

As many scholars increasingly recognize Landauer’s Principle which explains in computer the energy consumption and reversibility of computing is closely linked, rev ersible logic research is attracting more and more attention in the scientific communit y. So reversible logic circuit is regarded as the necessary to reduce power consumption of integrated circuit, prolong correlative technique and industry promotion. However, not far from its born, reversible logic circuit still has to yet establish his own independent and advanced theory and technical platform. And there is a critical shortage of relevant experience and knowledge. O n the contrary, regular logic has formed enough mature technology platforms, especially EDA with formidable functions and convenient. This article focus on explaining technical transplantation and reuse to achieve description and validation of reversible ALU based on traditional schematic diagram.Common quantum gates are CNOT gate, Fredkin gate and Toffoli series gates, most of which are redefined and designed. Constrained by reversibility, reversible logic has the same number of outputs and inputs, and between which there is a one-to-one mapping. The reason why this study began is that the maximum difference between conventional logic and the reversible logic is embodied in the reversibility o f the calculation, but the function of the realization of the logic expression is the same.In this paper, two methods of designing reversible logic circuits are presented. O ne is based on conventional functional circuit design. And this paper tries to use the logic description and verification capability of the current EDA technology. The other is to explore the relationship between conventional logic gate and reversible logic gate. The method can realize the reversible logic, and increase the type of rever sible logic design method and the circuit size and complexity.With the above two methods, this thesis complete the design of reversible adder, reversible subtracter, reversible multiplier and reversible divider to implement functi ons of basic arithmetic logic unit. Full adder is theoretical basis of designing the reversible adder and reversible subtraction. The simulation results show that reversible arithmetic unit can realizes multiple levels of addition, subtraction, multiplication and division. To a certain extent, the result of the research provides the referenced data for ensuring achievement inheritance and stable transition from conventional logic to future reversible logic.