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:
Oct. 03, 2006
Filed:
Sep. 03, 2003
Gene W. Shen, San Jose, CA (US);
S. Craig Nelson, San Jose, CA (US);
Gene W. Shen, San Jose, CA (US);
S. Craig Nelson, San Jose, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A processor comprises a cache, a first TLB, and a tag circuit. The cache comprises a data memory storing a plurality of cache lines and a tag memory storing a plurality of tags. Each of the tags corresponds to a respective one of the cache lines. The first TLB stores a plurality of page portions of virtual addresses identifying a plurality of virtual pages for which physical address translations are stored in the first TLB. The tag circuit is configured to identify one or more of the plurality of cache lines that are stored in the cache and are within the plurality of virtual pages. In response to a hit by a first virtual address in the first TLB and a hit by the first virtual address in the tag circuit, the tag circuit is configured to prevent a read of the tag memory in the cache.