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. 24, 2020

Filed:

Dec. 17, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Son T. Dao, Stuttgart, DE;

Silvia Melitta Mueller, Altdorf, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/485 (2006.01); G06F 7/499 (2006.01); G06F 5/01 (2006.01);
U.S. Cl.
CPC ...
G06F 7/485 (2013.01); G06F 5/012 (2013.01); G06F 7/49915 (2013.01);
Abstract

Methods and apparatuses for generating a condition code for a floating point number operation prior to normalization. A processor receives an intermediate result for an operation, wherein the intermediate result comprises an intermediate significand and an intermediate exponent. A processor determines a mask based on the value of the intermediate exponent. A processor generates a masked significand by applying the mask to the intermediate significand. A processor generates a condition code based on the masked significand having a predetermined value.


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