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:
Nov. 28, 2017

Filed:

Jan. 22, 2014
Applicant:

Eric C. Quinnell, Austin, TX (US);

Inventor:

Eric C. Quinnell, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/50 (2006.01); G06F 7/485 (2006.01); G06F 7/499 (2006.01);
U.S. Cl.
CPC ...
G06F 7/485 (2013.01); G06F 7/49915 (2013.01); G06F 7/50 (2013.01);
Abstract

According to one general aspect, an apparatus may include a floating-point addition unit that includes a far path circuit, a close path circuit, and a final result selector circuit. The far path circuit may be configured to compute a far path result based upon either the addition or the subtraction of the two floating point numbers regardless of whether the operands or the result include normal or denormal numbers. The close path circuit may be configured to compute a close path result based upon the subtraction of the two floating point operands regardless of whether the operands or the result include normal or denormal numbers. The final result selector circuit may be configured to select between the far path result and the close path result based, at least in part, upon an amount of difference in the exponent portions of the two floating point operands.


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