| 摘要 |
PURPOSE:To improve the performance of a duplex synchronization switching system, by introducing a DTSN macro to a task part desired to have synchronism in a program. CONSTITUTION:A DENT macro for synchronism of each one is located at the head of task and a syncronizing DSTOP macro is located at the tail of the task in the user task in a duplex computer system and a DTSYN macro is introduced to the task desired to have the syncronizm in the program, allowing to renew the data of a LOC area LOCA set to a synchronizing table SYNT. If the status transition of the computer takes place, the task is restarted with a POST notice from the address of the end position of the newest synchronizing DTSYN macro with a program counter data of the LOC area LOCA. Thus, the synchronizing information of the task can be set. |
