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. 19, 2016
Filed:
Apr. 30, 2012
Sandeep Gupta, Santa Clara, CA (US);
Conrado Blasco-allue, Sunnyvale, CA (US);
John H. Mylius, Gilroy, CA (US);
Gerard R. Williams, Iii, Los Altos, CA (US);
James B. Keller, Redwood City, CA (US);
Sandeep Gupta, Santa Clara, CA (US);
Conrado Blasco-Allue, Sunnyvale, CA (US);
John H. Mylius, Gilroy, CA (US);
Gerard R. Williams, III, Los Altos, CA (US);
James B. Keller, Redwood City, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A system and method for efficiently reducing the power consumption of register file accesses. A processor is operable to execute instructions with two or more data types, each with an associated size and alignment. Data operands for a first data type use operand sizes equal to an entire width of a physical register within a physical register file. Data operands for a second data type use operand sizes less than an entire width of a physical register. Accesses of the physical register file for operands associated with a non-full-width data type do not access a full width of the physical registers. A given numerical value may be bypassed for the portion of the physical register that is not accessed.