浙江大学超大规模集成电路设计研究所,浙江,杭州,310027
纸质出版:2004
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严晓浪, 郑飞君, 葛海通, 等. 结合二叉判决图和布尔可满足性的等价性验证算法[J]. 电子学报, 2004,32(8):1233-1235.
YAN Xiao-lang, ZHENG Fei-jun, GE Hai-tong, et al. Combining Binary Decision Diagrams and Boolean Satisfiability for Equivalence Checking[J]. Acta Electronica Sinica, 2004, 32(8): 1233-1235.
本文提出了一种结合二叉判决图BDD和布尔可满足性SAT的新颖组合电路等价性验证技术.算法是在与/非图AIG中进行推理
并交替使用BDD扩展和基于电路SAT解算器简化电路.如尚未解决
将用基于合取范式SAT解算器进行推理.与已有算法相比主要有如下改进:在AIG中结合多种引擎进行简化
不存在误判可能;充分利用了基于电路解算器和基于合取范式解算器各自优点
减小了SAT推理的搜索空间.实验结果表明了本算法的有效性.
A new combinational equivalence checking approach integrating Binary Decision Diagrams and Boolean Satisfiability is proposed.The algorithm works on the representation called And/Inverter Graph of the circuit.The BDD propogation and Circuit-based SAT Solver are applied in an intertwined manner to reduce the space of the miter circuit. If failed
CNF-based SAT Solver is used to solve the problem.The efficiency of the proposed approach is shown through its application on the LGsynth91 benchmark circuits.
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