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:
Apr. 02, 2019
Filed:
May. 24, 2016
International Business Machines Corporation, Armonk, NY (US);
Brian D. Barrick, Pflugerville, TX (US);
Steven J. Battle, Austin, TX (US);
Joshua W. Bowman, Austin, TX (US);
Christopher M. Mueller, Pflugerville, TX (US);
Dung Q. Nguyen, Austin, TX (US);
David R. Terry, Austin, TX (US);
Eula Faye Tolentino, Austin, TX (US);
Jing Zhang, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are disclosed for restoring register data in a processor. In one embodiment, a method includes receiving an instruction to flush one or more general purpose registers (GPRs) in a processor. The method also includes determining history buffer entries of a history buffer to be restored to the one or more GPRs. The method includes creating a mask vector that indicates which history buffer entries will be restored to the one or more GPRs. The method further includes restoring the indicated history buffer entries to the one or more GPRs. As each indicated history buffer entry is restored, the method includes updating the mask vector to indicate which history buffer entries have been restored.