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:
Mar. 03, 1992
Filed:
Apr. 17, 1989
Applicant:
Inventors:
Thomas J Beacom, Pine Island, MN (US);
Jeffrey D Brown, Rochester, MN (US);
Mark R Funk, Rochester, MN (US);
Scott A Hilker, Rochester, MN (US);
Daniel G Young, Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395375 ; 3642286 ; 3642421 ; 3642624 ; 364263 ;
Abstract
A tightly-coupled main processor and coprocessor overlap the execution of sequential instructions when apparent sequential operation and precise exception interrupts can be assured. Logic detects all conditions under which these criteria might potentially be violated in the coprocessor before it has finished performing an instruction, and holds off the main processor from executing a subsequent instruction.