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Method and system for reducing cache tag bits
   
Document Number
US Patent 7546417
Issued Date
June 9, 2009
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Abstract
A method of accessing data from a cache is disclosed. Tag bits of data among sets and ways of cache lines are divided into common subtags and remaining subtags. Similarly, an access address tag is divided into an address common subtag and address remaining tag. When the index of an access address selects a set, a match comparison of the address common subtag and the selected set common subtag is performed. Also, the address remaining tag and selected set remaining subtags are compared for matching before the selected set and associated data is supplied to the requester.
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Number of Claims:
1
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Published
June 9, 2009
Application Number
12/173,613
Filed
July 15, 2008
US Classification
711/118   711/127 711/128 711/133
Int'l Classification
G06F   12/00   (20060101)   G06F   13/00   (20060101)   G06F   13/28   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
USPTO Field of Search
711/118  
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