Round robin replacement for a cache store

Details Round robin replacement for a cache store Round robin replacement for a cache store

1977-12-22

1980-03-25

Chapnick, Melvin B.

Boots, shoes, and leggings

G06F 1300, G11C 906

Patent

active

041953436

ABSTRACT:
During system initialization, a cache is completely loaded with valid information from main memory. The directory and data buffer are organized in levels of memory locations. Each level of the directory and data buffer is loaded in turn from main memory. Round Robin apparatus, which is preset during system initialization, identifies the next level into which a replacement data word is written on a first in-first out basis. The round robin count for each address location of cache indentifying the next level to be written is stored in a random access memory (RAM). The contents of a particular address location of RAM is incremented each time replacement information is written into that address location in cache.

REFERENCES:
patent: 3820078 (1974-06-01), Curley et al.
patent: 3840862 (1974-10-01), Ready
patent: 3896419 (1975-07-01), Lange et al.

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