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. 07, 2018
Filed:
Nov. 20, 2012
Arm Limited, Cambridge, GB;
The Regents of the University of Michigan, Ann Arbor, MI (US);
Ali Saidi, Austin, TX (US);
Thomas Friedrich Wenisch, Ann Arbor, MI (US);
Aasheesh Kolli, Ann Arbor, MI (US);
ARM Limited, Cambridge, GB;
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
An apparatus for processing data includes signature generation circuitryfor generating a signature value indicative of the current state of the apparatus in dependence upon a sequence of immediately preceding return addresses generating during execution of a stream of program instructions to reach that state of the apparatus. Prefetch circuitryperforms one or more prefetch operations in dependence upon the signature value that is generated. The signature value may be generated by a hashing operation (such as an XOR) performed upon return addresses stored within a return address stack