| 摘要 |
PROBLEM TO BE SOLVED: To perform efficient debugging by emulating a controller without changing a program as the debugging object or an OS. SOLUTION: After initialization processing is executed by an initialization control part 3, an address conversion part 5 converts an address, which is stored in an I/O address storage part 1 where the address of a controller 93 is stored, to an address of an I/O memory 20 where data is read and written. Next, a main control part reads in the address converted from the address indicating the controller 93 to the address of the I/O memory 20 by the address conversion part 5 and controls the access to the address of the read-in I/O memory 20, thereby implementing the emulation of a controller which accesses the I/O memory 20 instead of the controller 93.
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