TECHNIQUES FOR UNIT-DELAY

The PC-set method and the parallel technique are two methods for performing compiled unit-delay simulation. The PC-set method analyzes the network, determines the set of potential change times for each net, and generates gate simulations for each potential change. The parallel technique, which is based on the concept of parallel fault simulation, is faster and generates less code than the PC-method, but is is less flexible. Benchmark comparisons with interpreted event-driven simulation show a factor of 4 improvement for the PC-set method and a factor of ten improvement for the parallel technique