| 摘要 |
PURPOSE:To assign the interruption processing time of a replying communication to other tasks, and to improve the performance of an arithmetic processor by eliminating the replying communication from a control processor. CONSTITUTION:In order to activate another task on an arithmetic processor 14, an activating processing is executed. At such a time, when the task to be activated is absent, the processor 14 comes to be the weight condition to await an inter-processor communication from a control processor 13. When the task to be activated is present and the processor 14 executes the inter-processor communication to the control processor 13 and the inter-processor communication of the replying communication, the receiving processing of the inter- processor communication of the control processor 13 is executed. At such a time it is decided whether or not the replying communication from the processor 14 is obtained. When replying communication is started a lock byte 21 is made into the un-locking condition. When the replying communication is not started, the communication data are read from a communication data area 22 at a main memory device 11, the processing in accordance with the communication data is executed by the control processor 13 and thereafter, the lock byte 21 is made into the un-locking condition.
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