| 摘要 |
PURPOSE:To given an access at a main memory at high speed by dividing a cache memory into plural blocks and allocating each of these blocks exclusively or in common to plural programs. CONSTITUTION:A cache memory 3A is divided into four blocks 0-3. While a program 7 includes four programs 0-3. Then the correspondence is secured between the program 7 and the block 6 of the memory 3A by the command of a CPU 1. In other words, a block 0 is allocated to a program 0 and can be used exclusively with no disturbance given from other programs. Then blocks 1 and 2 are allocated to a program 1 for the exclusive use of both blocks. A block 3 is allocated in common to both programs 2 and 3.
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