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:
Feb. 21, 2017
Filed:
Apr. 16, 2012
James B. Keller, Redwood City, CA (US);
John H. Mylius, Gilroy, CA (US);
Conrado Blasco-allue, Sunnyvale, CA (US);
Gerard R. Williams, Iii, Los Altos, CA (US);
Suparn Vats, Fremont, CA (US);
James B. Keller, Redwood City, CA (US);
John H. Mylius, Gilroy, CA (US);
Conrado Blasco-Allue, Sunnyvale, CA (US);
Gerard R. Williams, III, Los Altos, CA (US);
Suparn Vats, Fremont, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A system and method for reducing the latency of data move operations. A register rename unit within a processor determines whether a decoded move instruction is eligible for a zero cycle move operation. If so, control logic assigns a physical register identifier associated with a source operand of the move instruction to the destination operand of the move instruction. Additionally, the register rename unit marks the given move instruction to prevent it from proceeding in the processor pipeline. Further maintenance of the particular physical register identifier may be done by the register rename unit during commit of the given move instruction.