Apparatus for recording the order of usage of locations in memor

Details Apparatus for recording the order of usage of locations in memor Apparatus for recording the order of usage of locations in memor

1980-02-25

1982-06-08

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 700

Patent

active

043342892

ABSTRACT:
There is disclosed herein an apparatus for encoding, storing, updating and decoding data indicating the order of usage of memory locations as in a cache memory. An array of memory bits is encoded by a field programmable logic array each time a memory device or other peripheral is accessed by a method which need change only a portion of all the memory bits in a row. Each row corresponds to a group of memory locations or peripherals to be monitored. When the order of usage of a group of monitored locations is to be determined a field programmable logic array decodes the corresponding row and outputs a signal indicating the least recently used one of the memory locations of interest.

REFERENCES:
patent: 3958228 (1976-05-01), Coombes et al.

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