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:
Oct. 16, 2001
Filed:
Mar. 25, 1999
Applicant:
Inventor:
Dzung X. Tran, San Jose, CA (US);
Assignee:
Rise Technology Company, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 ;
U.S. Cl.
CPC ...
G06F 7/00 ;
Abstract
A novel method and apparatus of performing data bit moving functions on a data word using two barrel shifters: a left shifter and a right shifter. The present invention is able to handle both shift and rotate functions using one shifter unit. Specifically, for shift functions, only one of the two shifters is used to perform the shifting function. On the other hand, for rotate functions, both shifters are needed for shifting the data word. The amounts of the right shift and left shift depend on the number defined by the count operand and the specific shift/rotate instruction requested.