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In this paper, we provide a flexible and automatic method to partition the functional space for efficient symbolic simulation. We utilize a 2-tuple list representation as the basis for partitioning the functional space. The partitioning is carried out dynamically during the symbolic simulation based on the sizes of OBDDs. We develop heuristics for choosing the optimal partitioning points. These heuristics intend to balance the tradeoff between the time and space complexity. We demonstrate the effectiveness of our new symbolic simulation approach through experiments based on a floating point adder and a memory management unit.
Design, Automation and Test in Europe Conference and Exhibition, 2004. Proceedings (Volume:1 )
Date of Conference: 16-20 Feb. 2004