A Study of Simulation Coverage Analysis Method

The time cost of simulation coverage analysis directly influences the verification effectiveness in coverage-driven verification approaches. The existing VCD-based coverage analysis method is inefficient in simulation replay. A high performance coverage analysis approach with improved simulation replay method is proposed, which only evaluates control statement when replaying simulation. A prototype system is implemented and several experiments are conducted on it; promising experimental results show that with the same coverage analysis accuracy, the simulation replay method can gain speedup over two times.