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:
Aug. 17, 2004
Filed:
Apr. 27, 2000
Applicant:
Inventors:
Mark Erle, Poughkeepsie, NY (US);
Michael R. Kelly, LaGrangeville, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 ; G06F 7/38 ;
U.S. Cl.
CPC ...
G06F 7/00 ; G06F 7/38 ;
Abstract
A method of determining a biased leading-zero count for a floating-point operation is disclosed. First, a binary vector is divided into subvectors. Then, multiple subvector leading-zero counts are generated. The subvector leading-zero counts are biased by a constant amount. Next, one or more prefix bits are calculated. Finally, at least a portion of a selected subvector leading-zero count is concatenated to the prefix bits to yield a total leading-zero count for the binary vector.