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:
Dec. 29, 2015

Filed:

Mar. 11, 2013
Applicant:

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

Inventors:

Mark J. Hickey, Rochester, MN (US);

Adam J. Muff, Issaquah, WA (US);

Matthew R. Tubbs, Issaquah, WA (US);

Charles D. Wait, Byron, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/10 (2006.01); G06F 7/483 (2006.01); G06F 7/544 (2006.01); G06F 9/30 (2006.01); G06F 9/38 (2006.01);
U.S. Cl.
CPC ...
G06F 17/10 (2013.01); G06F 7/483 (2013.01); G06F 7/5443 (2013.01); G06F 9/30014 (2013.01); G06F 9/30189 (2013.01); G06F 9/3861 (2013.01); G06F 2207/382 (2013.01); G06F 2207/3828 (2013.01);
Abstract

A floating point execution unit is capable of selectively repurposing a subset of the significand bits in a floating point value for use as additional exponent bits to dynamically provide an extended range for floating point calculations. A significand field of a floating point operand may be considered to include first and second portions, with the first portion capable of being concatenated with the second portion to represent the significand for a floating point value, or, to provide an extended range, being concatenated with the exponent field of the floating point operand to represent the exponent for a floating point value.


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