| 摘要 |
PROBLEM TO BE SOLVED: To conduct various timing tests by providing a specific trace interruption flag and a trace interruption means. SOLUTION: A trace interruption processing program 201 is stored in an area (B) of a RAM 21. When the trace interruption flag is set 'ON', an MPU 20 reads out one instruction of a main program stored in an area (A) of the RAM 21 and when its execution is completed, the trace interruption means branches off to the trace interruption processing program 201, which is executed. One non-execution instruction is incorporated in the trace interruption processing program 201, so the execution of each instruction can be delayed by as long as the time needed for a trace interruption and two instructions (non-execution instruction and return instruction) with the return instruction for a return to the main program 200. |
