Patent ID: 6098151
Filing Date: 2000-08-01
Classification: G06F

Abstract:
A cache memory control system comprising:a cache memory for storing a copy of a subset of data which is stored in a main memory, andcache control means for controlling data caching and data replacement for said cache memory upon a read request to said main memory,said cache control means for, when data requested by said read request for data to be output to an output device does not exist in said cache memory, reading out from said main memory said read requested data and only a plurality of predetermined adjacent data for replacement in said cache memory without reading out unnecessary data, wherein the plurality of said predetermined adjacent data are positioned on an output area of the output device at a position above said read requested data, a position below said read requested data, a position to a left side of said read requested data, a position to a right side of said read requested data, an upper right side of said read requested data, an upper left side of said read requested data, a lower right side of said read requested data, and a lower left side of said read requested data, andwherein said predetermined adjacent data is determined independent of paging considerations.