MULTI-PROCESSOR SYSTEM WITH VIRTUALLY ADDRESSABLE COMMUNICATION REGISTERS AND CONTROLLING METHOD THEREOF

摘要

A multi-processor system includes processors and a communication register which is used for synchronization control between the processors. Each processor has a translation table for translating a logical address to a physical address of the communication register. A leastfrequently-used word of the communication register is swapped out to a main storage when the communication register is likely to be exhausted and thus unavailable for use.