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. 07, 2015
Filed:
Dec. 30, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Dan F Greiner, San Jose, CA (US);
Lisa C Heller, Rhinebeck, NY (US);
Damian L Osisek, Vestal, NY (US);
Erwin Pfeffer, Bavaria, DE;
Timothy J Slegel, Staatsburg, NY (US);
Charles F Webb, Wappingers Falls, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/10 (2006.01); G06F 9/30 (2006.01); G06F 12/14 (2006.01); G06F 9/455 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1009 (2013.01); G06F 9/30054 (2013.01); G06F 9/30101 (2013.01); G06F 12/109 (2013.01); G06F 12/1475 (2013.01); G06F 9/455 (2013.01);
Abstract
A translation table entry contains a change recording override field for controlling whether a change bit is to be set on a store or not. Each 4K byte block of main storage has an associated storage key comprising a change bit. The change recording override field controls whether change bit of the storage key associated with the desired 4K byte block of main storage is set to 1 for a store operation.