Enhanced computer operational system using auxiliary mini-cache

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364DIG1, 364DIG2, 36424341, 36424344, 36424531, 395446, G06F 1200, G06F 1300

Patent

active

056405316

ABSTRACT:
An enhanced computer system architecture provides a processor supported by a general cache and a mini-cache wherein the mini-cache will supply requested data words not available in the general cache thus eliminating the extra clock periods necessary to access main memory. The mini-cache stores frequently used data words and is refilled concurrently during processor command execution and is settable for handling data words or code words or both. A data queue storage stores a block of words which duplicate words in main memory. If the requested address matches an address register block in the mini-cache, the data queue store will make the words in the data queue available to requests from the processor. The mini-cache also monitors the system bus for any "write" operations which might change the validity of the data in the address register block of the mini-cache. In this case, the data stored in the mini-cache is invalidated and cannot be used by the processor. Additionally, the mini-cache can be added to or removed from system operations.

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