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:
Jul. 01, 2008

Filed:

Aug. 28, 2003
Applicant:

Daniele Lo Iacono, Reggio Calabria, IT;

Inventor:

Daniele Lo Iacono, Reggio Calabria, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for incrementing, decrementing or two's complementing a first string of bits includes generating an auxiliary string of bits as a function of the first string, and logically combining the auxiliary string with the first string to generate a corresponding output string. A least significant bit of the auxiliary string is independent from the bits of the first string, and any other bit of the auxiliary string. The method is particularly convenient for generating an overflow flag when the number to be output exceeds the representation interval. An overflow flag is generated by logically combining the most significant bits of the first and auxiliary strings.


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