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:
Mar. 07, 2000
Filed:
Mar. 31, 1998
Mohammad Abdallah, Folsom, CA (US);
Scott Siers, Elk Grove, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A circuit for generating partial products for variable width multiplication operations is provided. According to an embodiment of the present invention, the circuit includes a plurality of partial product selector groups, each partial product selector group includes a plurality of partial product selector circuits. Each partial product selector circuit receives a portion of a multiplicand as an input and outputs a partial product. The circuit also includes a plurality of Booth encoders. At least one of the Booth encoders is coupled to each partial product selector group. Each Booth encoder receives as an input a portion of a wide multiplier and outputs a Booth encoded value to at least a portion of a partial product selector group. The circuit further includes an override circuit coupled to one or more of the partial product selector circuits. The override circuit is operable to control one or more of the partial product selector circuits to output a zero to thereby avoid unwanted cross-products when performing multiple smaller multiplications using the same circuit.