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. 01, 2013
Filed:
Feb. 15, 2008
David A. Schroter, Round Rock, TX (US);
Mark S. Farrell, Pleasant Valley, NY (US);
Jennifer Navarro, Poughkeepsie, NY (US);
Chung-lung Kevin Shum, Wappingers Falls, NY (US);
Charles F. Webb, Wappingers Falls, NY (US);
David A. Schroter, Round Rock, TX (US);
Mark S. Farrell, Pleasant Valley, NY (US);
Jennifer Navarro, Poughkeepsie, NY (US);
Chung-Lung Kevin Shum, Wappingers Falls, NY (US);
Charles F. Webb, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A microprocessor equipped to provide hardware initiated prefetching, includes at least one architecture for performing: issuance of a prefetch instruction; writing of a prefetch address into a prefetch fetch address register (PFAR); attempting a prefetch according to the address; detecting one of a cache miss and a cache hit; and if there is a cache miss, then sending a miss request to a next cache level and attempting cache access in a non-busy cycle; and if there is a cache hit, then incrementing the address in the PFAR and completing the prefetch. A method and a computer program product are provided.