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:
Jul. 06, 1999
Filed:
Sep. 11, 1997
Applicant:
Inventor:
Alan J Schiffleger, Chippewa Falls, WI (US);
Assignee:
Cray Research, Inc., Eagan, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395588 ; 3958003 ; 711155 ;
Abstract
In a tightly coupled communication scheme based on a common shared resource circuit having a plurality of shared information registers and adapted particularly to a multiprocessing system having 2.sup.N CPUs, a method of performing a read-and-modify instruction. Data stored in a shared information register is read from the shared register, captured in a read and increment circuit and sent to the processor issuing the read-and-modify instruction. At the same time, a mathematical function is performed on the captured data is incremented and the result is written back into the shared information register.