1 Introduction As the size and complexity of digital circuits grows, so does need for logic simulation. Recent research has focused on compiled simulation because it provides substantially better performance than interpretive methods. In compiled simulation, a program is generated from the circuit to be simulated. Running this program, called a compiled simulator, then simulates the circuit. Compiled simulation executes much more rapidly than interpreted simulation because the overhead of tranversing and interpreting the data structure that describes the circuit is done only once, when the compiled simulator is created.