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. 15, 1997
Filed:
Jun. 07, 1995
Bartholomew Blaner, Underhill Center, VT (US);
Stamatis Vassiliadis, Zoetermeer, NL;
International Business Machines, Corporation, Armonk, NY (US);
Abstract
Apparatus for retaining the branch prediction bits of a line displaced from an integrated cache/branch history table and using the retained bits to initialize the prediction bits should that line be brought back into the cache, the operation of which may be overlapped with the activities normally associated with displacing a cache line with one fetched from memory, thus imposing no instruction processing penalty. The apparatus consists of an associative memory that provides storage for branch prediction bits associated with cache lines and comparison means for matching stored prediction bits with their corresponding cache lines.