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:
Aug. 10, 2004
Filed:
Dec. 18, 2001
Applicant:
Inventors:
Kohji Takano, Yamato, JP;
Akashi Satoh, Yamato, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/110 ;
U.S. Cl.
CPC ...
G06F 1/110 ;
Abstract
A circuit and a method for solving the Montgomery multiplier bottleneck problem encountered during a memory access using two ports or single port general-purpose memories is described. A first and a second memory are provided such that variables that are stored in one memory must be read for an operation to be recorded in the second memory. Thereafter, during a reading cycle corresponding to a pipeline process, certain of the variables are read from the first memory and are loaded in the predetermined register while the other variables are read from the second memory and are loaded in the remaining registers.