| 摘要 |
<p>PURPOSE:To individually account for time by accumulating a difference between the timer value of a system timer obtained when the number of tasks reaches the number of executing tasks by the increment of tasks and the timer value obtained when the number of executing tasks is not satisfied due to the reduction of tasks. CONSTITUTION:The contents of an executing task counter 5210 in a task group control block 5200 are read out, one is subtracted from the read contents and the subtracted value is written in the original position. Then, the timer value of the system timer is read out, an M-task execution transfer time 522M corresponding to the value M of the counter 5210 is read out and the difference between the time 522M and the timer value is found out to obtain the parallel execution time of tasks more than the value specified by the counter value M. Then, an execution time 523M more than M tasks corresponding to the counter value M is read out, a current parallel execution time is added to the read value 523M and the added value is rewritten in the original position. Then, an execution environment relating to the task concerned is rolled out. Since said processing is executed at the time of task rolling-out operation, the execution time can be individually set up and the task parallel operation time can be individually accounted for.</p> |
