| 摘要 |
Compressed data is written from a main memory into a cache memory. The capacity of decompressed data corresponding to the compressed data is calculated. To ensure that cache mis does not occur upon subsequent data writing, an address of a location in which the decompressed data is to be stored is written into the cache memory. A data area for the calculated amount of data is ensured in the cache memory. The compressed data stored in the cache memory is decompressed and then written into the area ensured in the cache memory. The decompressed data stored in the cache memory is moved to the main memory by means of a cache memory controller.
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