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:
Dec. 07, 1993
Filed:
Aug. 30, 1991
Applicant:
Inventor:
Willard S Briggs, Dallas, TX (US);
Assignee:
Cyrix Corporation, Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364760 ;
Abstract
A multiplier system 12 is disclosed which provides for the negation of an operand stored in an operand register 14. When a negative operand must be loaded into a partial product generator 26, a carry bit is selectively generated in carry logic 44 and a selected bit or bits within the partial product is set to zero. During a subsequent pass through the multiplier system 12, a bit is added at a block 46 to provide for the addition of the required quantity for the negation of the operand.