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:
Jun. 28, 2011
Filed:
May. 26, 2009
Applicants:
Sugako Ohtani, Tokyo, JP;
Hiroyuki Kondo, Tokyo, JP;
Inventors:
Sugako Ohtani, Tokyo, JP;
Hiroyuki Kondo, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Kawasaki-Shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/302 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data processing device has an instruction decoder (), a control logic unit (), and ALU (). The instruction decoder () decodes instruction codes of an arithmetic instruction. The control logic unit () detects the effective data width of operation data to be processed according to the decode result from the instruction decoder () and determines the number of cycles for the instruction execution corresponding to the effective data width. The ALU () executes the instruction with the number of cycles of the instruction execution determined by the control logic unit ().