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, 2012
Filed:
Aug. 04, 2009
Applicants:
Kai-feng Wang, Beijing, CN;
Hong-xia Sun, Beijing, CN;
Yong-qiang Wu, Beijing, CN;
Inventors:
Assignee:
STMicroelectronics (Beijing) R&D Co., Ltd., Hai Dian District, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/312 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A comparison circuit can reduce the amount of power consumed when searching a load queue or a store queue of a microprocessor. Some embodiments of the comparison circuit use a comparison unit that performs an initial comparison of addresses using a subset of the address bits. If the initial comparison results in a match, a second comparison unit can be enabled to compare another subset of the address bits.