| 摘要 |
PURPOSE:To perform the debug of software even when input/output equipment are not always arranged in a targeted system by performing a substitute processing for part of a processing to be executed by a user program by a host system. CONSTITUTION:An emulator 1 supplies an instruction to perform the substitute processing to the host system 2 by an interruption signal IRQ. The host system 2 perform a series of substitute processings including an operation to take out required data from a shared memory 15, and the one to transfer data obtained by the operation of a peripheral equipment to the shared memory 15, etc. Thereby, when a specific circuit block in the targeted system 4 whose operation should be controlled by the user program, for example, the input/ output equipment or an interface circuit are not always accomplished or ar ranged, the debug of the software of the user program can be performed by utilizing the peripheral device such as the input/output equipment or the inter face circuit provided in the host system 2. |
