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:
Feb. 13, 2001
Filed:
Apr. 30, 1998
Timothy John Slegel, Staatsburg, NY (US);
Robert E. Murray, Kingston, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A computer which has multiple central processing units where at least one of the processors is a spare and unused for normal system operation, provides a mechanism for transferring the micro-architected state of a checkstopped processor to a spare processor. Each processor has a set of registers in the central processing unit where the micro-architected state of the processor is kept and these registers are accessible by millicode or microcode running on that processor. A checkstop of a processor is detected by the system, the micro-architected state of that processor is extracted and returned to the system where that state can be loaded into a spare processor in the system and processing resumed without interruption.