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:
Dec. 10, 2002
Filed:
Dec. 17, 1999
Applicant:
Inventor:
Terry L Lyon, Fort Collins, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/210 ;
U.S. Cl.
CPC ...
G06F 1/210 ;
Abstract
A computer micro-architecture employing a prevalidated cache tag design includes circuitry to support virtual address aliasing and multiple page sizes. Support for various levels of address aliasing are provided through a physical address CAM, page size mask compares and a column copy tag function. Also supported are address aliasing that invalidates aliased lines, address aliasing with TLB entries with the same page sizes, and address aliasing the TLB entries of different sizes. Multiple page sizes are supported with extensions to the prevalidated cache tag design by adding page size mask RAMs and virtual and physical address RAMs.