SIMULATION SYSTEM AND METHOD FOR MICROCOMPUTER PROGRAM

In a computer program simulation system, a simulation control unit calculates a simulation time until a machine language instruction execution simulation has an influence on a peripheral circuit simulation, and a simulation time notification unit provided in the simulation control unit notifies the calculated simulation time to a peripheral circuit simulation unit. The peripheral circuit simulation unit executes the peripheral circuit simulation for the notified simulation time. Thereafter, a machine language instruction execution simulation unit executes the machine language instruction execution simulation for the same time as the time in which the peripheral circuit simulation unit has executed the peripheral circuit simulation. Thus, the overhead such as communication between the simulation units and a preprocessing can be omitted so that the simulation processing speed can be elevated.