Abstract: A bus simulation apparatus for simulating a bus connecting a plurality of devices. Each of a plurality of simulated bus slot application interfaces prepares a receive task in response to a call from a simulated device corresponding to each of the plurality of the devices. The receive task obtains a communication handle for an application name of the simulated device. A communication handle management table relates the communication handle to the application name. A simulated bus manager, in response to a request for data transfer between the simulated devices along with the application name, sends data to the receive task of destination using the communication handle obtained by searching the communication handle management table based on the received application name.

Abstract: The invention improves the preparation efficiency, the portability and the reusability by centralizing the implementation of the communication procedure of the program for simulating a microprocessor and a device connected by a bus. In the invention, the simulated bus manager mediates the communication between the simulated microcomputer and the simulated device, and the simulated bus slot API102 and 103 provide the common interface to both parties. Therefore, the implementation of the communication procedure can be centralized.