| 摘要 |
PURPOSE:To reduce the capacity of a transferring image table for converting a logical address to a cache address by making the same logical address correspond to data on a physical address to be used among respective jobs in common. CONSTITUTION:An arithmetic unit 11 inputs a logical address 12 to a cache transfer image table address converting circuit 13 to obtain a cache address 14 directly. In such a case, the same logical address is made to correspond to the data on the physical address to be used among respective jobs in common and these plural transfer image tables are formed on one physical address space, so that the part to be used by respective jobs in the transfer image tables in common can be prevented from being overlapped. Thus, the capacity of the transfer image tables can be sharply reduced by the prevention of overlap.
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