SIMULATION METHOD, SYSTEM AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a technique for enabling a discrete system simulator to rollback correctly.

SOLUTION: The simulation system, which is implemented by a computer, has: a continuous system simulator; a discrete system simulator; an edge storage means which stores information on an edge signal of a pulse sent from the continuous system simulator to the discrete system simulator with time; a means which stores the occurrence time of an event of the discrete system simulator as a rollback time; a search means which searches the rollback time of the discrete system simulator before the occurrence time of the rollback in response to the rollback operation of the continuous system simulator; and a means which reads the edge signal corresponding to the rollback time found by the search means from the edge storage means and sends the signal to the discrete system simulator.

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