CACHE MEMORY SYSTEM, COMPUTER SYSTEM, AND CACHE MEMORY ACCESS METHOD

摘要

An index/tag generation unit (11) generates, according to a main storage address: a tag containing an upper-node continuous bit string and a lower-node continuous bit string in a main storage address; and an index as a continuous bit string sandwiched by the upper-node continuous bit string and the lower-node continuous bit string which are at least tags among the continuous bit strings in the main storage address. A cache memory (121) uses the index as a cache address so as to store a tag and data. An access unit (122) uses the index so as to access the data stored in the cache memory (121).