COMMON MEMORY EXCLUSIVE CONTROL SYSTEM

摘要

PURPOSE:To improve the throughput of a processing system and to eliminate an overhead by providing an exclusive control section to a common memory in a multiprocessor processing system separately with a data section so as to conduct exclusive control . CONSTITUTION:The inside of the common memory 4 connected to processors 1, 2 via a bus 3 is provided with the exclusive control section 7 and a data section 8 and as to the bus 3, a processor number bus 31 and an exclusive control instruction bus 32 are provided in addition to the address bus and data bus. When any processor accesses the common memory 4, the processor number (31) and the exclusive control instruction (32) of the processor are outputted to the bus 3 together with the address and data or the like.