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:
Apr. 04, 2006

Filed:

Jan. 24, 2002
Applicant:

Yatin Hoskote, Portland, OR (US);

Inventor:

Yatin Hoskote, Portland, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 7/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method and apparatus are described for anticipating the number of leading zeros or leading ones in a sum of mantissas irrespective of the sign of the result or the relative magnitudes of the input operands using a leading zero anticipation (LZA) device. An algorithm is presented for leading zero and leading one anticipation that may be used to remove leading zeroes or ones from sums produced in arithmetic units. This algorithm and the design of the combinational logic does not require a comparison of input operands nor does it need two separate counters for leading zeros and leading ones as in most other LZAs. The present invention is especially applicable to redundant format addition.


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