TASK SCHEDULER FOR DEBUGGING

PROBLEM TO BE SOLVED: To provide a task scheduler for debugging capable of performing a test by the timing of execution among tasks and obtaining an executed test pattern and information as the primary factor of execution changeover without changing the program of the tasks and the priority of the task set at the time of an operation. SOLUTION: This scheduler is provided with a means for setting a task queue 13 composed of the tasks 11 of the same execution priority and changing the execution order of the tasks 11 within the queue 13 corresponding to the execution order of the tasks inputted beforehand and a task changeover information gathering table 19 for storing the primary factor as the cause of task changeover and the information of the execution changeover of the task in a table inside a main memory.