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:
Aug. 10, 2004
Filed:
Feb. 21, 2000
Rohit Bhatia, Fort Collins, CO (US);
David P Hannum, Fort Collins, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The present invention relates to a mechanism for updating a fully associative array which is used to store entries associated with speculated instructions. Preferably, the array includes a plurality of data banks for storing entries, a plurality of ports for writing to the plurality of data banks, pointers associated with the respective banks for identifying table locations suitable for overwriting by upcoming entries, wherein an entry is suitable for overwriting when it is deemed invalid by the inventive system. A preferred embodiment is disclosed involving two ports writing to two banks wherein a plurality of factors is considered in deciding where prospective entries from the two ports will be written in the table. The Factors include, matches between existing and prospective entries, the default designated data bank for a given port, whether two write operations are being attempted simultaneously, and the number of entries already present in each data bank.