| 摘要 |
<p>PURPOSE: To perform simulation even when no real input/output equipment is provided. CONSTITUTION: A real I/O address representing a position on a real I/O space, a virtual I/O address representing the position on a virtual space, memory addresses in accordance with them, and an effective flag representing whether or not the virtual I/O address is effective are set on a mapping table 6. As a virtual I/O, a simulator module loaded on, for example, a connector 5 is set. When the information of the flag is validated, input/output information is transferred between the simulator module and memory 3a based on the correspondent relation of the virtual I/O address and the memory address. In such a way, the simulation is performed even when no real inpu/output equipment is provided.</p> |
