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. 16, 2013
Filed:
Apr. 19, 2012
James Wilson Bishop, Newark Valley, NY (US);
Mary Douglass Brown, Austin, TX (US);
Jeffrey Carl Brownscheidle, Winooski, VT (US);
Robert Allen Cordes, Austin, TX (US);
Maureen Anne Delaney, Burlington, VT (US);
Jafar Nahidi, Round Rock, TX (US);
Dung Quoc Nguyen, Austin, TX (US);
Joel Abraham Silberman, Somers, NY (US);
James Wilson Bishop, Newark Valley, NY (US);
Mary Douglass Brown, Austin, TX (US);
Jeffrey Carl Brownscheidle, Winooski, VT (US);
Robert Allen Cordes, Austin, TX (US);
Maureen Anne Delaney, Burlington, VT (US);
Jafar Nahidi, Round Rock, TX (US);
Dung Quoc Nguyen, Austin, TX (US);
Joel Abraham Silberman, Somers, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An information handling system includes a processor with an instruction issue queue (IQ) that may perform age tracking operations. The issue queue IQ maintains or stores instructions that may issue out-of-order in an internal data store (IDS). The IDS organizes instructions in a queue position (QPOS) addressing arrangement. An age matrix of the IQ maintains a record of relative instruction aging for those instructions within the IDS. The age matrix updates latches or other memory cell data to reflect the changes in IDS instruction ages during a dispatch operation into the IQ. During dispatch of one or more instructions, the age matrix may update only those latches that require data change to reflect changing IDS instruction ages. The age matrix employs row and column data and clock controls to individually update those latches requiring update.