The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1993
Filed:
Feb. 05, 1992
Applicant:
Inventors:
Andrew Milia, Burlington, MA (US);
Richard G Bahr, Cambridge, MA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395425 ; 364D / ; 364243 ; 3642434 ; 36424341 ; 36424342 ; 36424344 ;
Abstract
A method and apparatus for selectively invalidating tag data related to data stored in high speed processor cache memory systems. The tag data to be invalidated, due to processor operations and cache memory misses, is stored in two tag stores and indicia related to the tag data to be invalidated is stored in a purge queue. Further improvement in system performance is provided by selective tag data and indicia elimination.