Efficient cache write technique through deferred tag modificatio

Details Efficient cache write technique through deferred tag modificatio Efficient cache write technique through deferred tag modificatio

1990-06-22

1992-11-10

Lee, Thomas C.

Boots, shoes, and leggings

3642434, 36424341, 3642443, 364DIG1, 364265, 3642653, 3649642, 36496434, G06F 1208, G06F 1100

Patent

active

051631423

ABSTRACT:
An efficient cache write technique useful in digital computer systems wherein it is desired to achieve single cycle cache write access even when the processor cycle time does not allow sufficient time for the cache control to check the cache "tag" for validity and to reflect those results to the processor within the same processor cycle. The novel method and apparatus comprising a two-stage cache access pipeline which embellishes a simple "write-thru with write-allocate" cache write policy.

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