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:
Nov. 08, 1994
Filed:
Apr. 02, 1991
Joseph P Gergen, Austin, TX (US);
Peter A Percosan, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A data processing system (10) which primarily supports fractional multiplication operations has a multiplication logic circuit (20) for executing integer multiplication functions efficiently. During an integer multiplication function, two multiplicands are multiplied together as if the multiplication function was fractional. A predetermined accumulation input is stored and shifted to the right by a Right Shift Logic circuit (32) before being added to a product of the two multiplicands. An accumulated product of the multiplication function is formed by an adder (36) and shifted to the left by a Left Shift Logic circuit (38) until the accumulated product is in integer form. Implementing an integer multiplication operation with a fractional multiplier in the data processing system requires a single software instruction.