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:
Jan. 28, 2014
Filed:
Dec. 14, 2011
Jack Hilaire Choquette, Palo Alto, CA (US);
Manuel Olivier Gautho, Los Gatos, CA (US);
John Erik Lindholm, Saratoga, CA (US);
Jack Hilaire Choquette, Palo Alto, CA (US);
Manuel Olivier Gautho, Los Gatos, CA (US);
John Erik Lindholm, Saratoga, CA (US);
Nvidia Corporation, Santa Clara, CA (US);
Abstract
Methods and apparatus for source operand collector caching. In one embodiment, a processor includes a register file that may be coupled to storage elements (i.e., an operand collector) that provide inputs to the datapath of the processor core for executing an instruction. In order to reduce bandwidth between the register file and the operand collector, operands may be cached and reused in subsequent instructions. A scheduling unit maintains a cache table for monitoring which register values are currently stored in the operand collector. The scheduling unit may also configure the operand collector to select the particular storage elements that are coupled to the inputs to the datapath for a given instruction.