Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Patent
1997-03-12
1999-06-15
Cabeca, John W.
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
711117, 711171, 711172, 711144, G06F 1100
Patent
active
059132280
ABSTRACT:
A method and apparatus for determining whether an address corresponds to a cacheable memory location within a discontiguously-arranged cacheable memory space. In one embodiment, the present invention includes the following steps: First the present invention receives an address for a memory location. Next, the present invention masks a first portion of the received address with an "admask" and compares the result of the admask itself to determine whether they are a predetermined value. The present invention also masks a second portion of the received address with a "tagmask" and compares the result to the tagmask itself to determine whether they are a predetermined value. Next, the present invention generates a cacheable signal provided the first portion of the received address matches the admask and the second portion of the received address matches the tagmask. In so doing, the present invention provides a method and apparatus for caching discontiguous memory address spaces with shorter cache tags.
REFERENCES:
patent: 4926314 (1990-05-01), Dhuey
patent: 5175859 (1992-12-01), Miller et al.
patent: 5367653 (1994-11-01), Coyle et al.
patent: 5483644 (1996-01-01), Richardson
patent: 5511180 (1996-04-01), Shieve
patent: 5574877 (1996-11-01), Dixit et al.
patent: 5682515 (1997-10-01), Lau et al.
patent: 5694567 (1997-12-01), Bourekas et al.
Cabeca John W.
Tzeng Fred F.
VLSI Technology Inc.
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