| 摘要 |
An instruction cache system includes an instruction-cache data storage unit that stores cache data per index, and an instruction cache controller that compresses and writes the cache data in the instruction-cache data storage unit, and controls a compression ratio of the written cache data. The instruction cache controller calculates a memory capacity of a redundant area generated due to compression in a memory area belonging to an index, in which n pieces of cache data are written based on the controlled compression ratio, to compress and write new cache data in the redundant area based on the calculated memory capacity. |
