Cache memory, system, and method of storing data

Details Cache memory, system, and method of storing data Cache memory, system, and method of storing data

2011-03-08

2011-03-08

Gu, Shawn X (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S119000, C711S128000, C711S133000, C711S144000, C711SE12016

Reexamination Certificate

active

07904675

ABSTRACT:
A cache memory has a set associative scheme and includes a plurality of ways made up of entries, each entry holding data and a tag; a first holding unit holds, for each way, a priority attribute that indicates a type of data to be preferentially stored in that way; a second holding unit, included in a first way among the ways, holds, for each entry of the first way, a data attribute that indicates a type of data held in that entry; and a control unit replaces control on the entries by prioritizing a way whose priority attribute held by the first holding unit matches a data attribute outputted from a processor, wherein the control unit is further operable to store data into the entry of the way other than the first way.

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