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.

Date of Patent:
Jul. 05, 2016

Filed:

Sep. 27, 2013
Applicant:

Nvidia Corporation, Santa Clara, CA (US);

Inventors:

Daniel Finchelstein, Redwood City, CA (US);

David Conrad Tannenbaum, Austin, TX (US);

Srinivasan (Vasu) Iyer, Austin, TX (US);

Assignee:

NVIDIA Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/38 (2006.01); G06F 7/50 (2006.01); G06F 7/544 (2006.01);
U.S. Cl.
CPC ...
G06F 7/50 (2013.01); G06F 7/5443 (2013.01); G06F 2207/3884 (2013.01);
Abstract

One embodiment of the present invention includes a method for simplifying arithmetic operations by detecting operands with elementary values such as zero or 1.0. Computer and graphics processing systems perform a great number of multiply-add operations. In a significant portion of these operations, the values of one or more of the operands are zero or 1.0. By detecting the occurrence of these elementary values, math operations can be greatly simplified, for example by eliminating multiply operations when one multiplicand is zero or 1.0 or eliminating add operations when one addend is zero. The simplified math operations resulting from detecting elementary valued operands provide significant savings in overhead power, dynamic processing power, and cycle time.


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