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:
Sep. 13, 2011
Filed:
Nov. 14, 2005
Gavin Barraclough, Manchester, GB;
Kit Man Wan, Oldham, GB;
Abdul Rahman Hummaida, Manchester, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Precise exception handling relies on a precise subject state including an accurate program counter and register values of a subject processor. Subject code () is translated into target code () executable by a target processor (). The generated target code () includes counterpart target instructions () associated with fault-vulnerable subject code instructions (). Further, each of the counterpart target code instruction () is associated with recovery information (). When an exception (e.g. a fault) occurs, the recovery information () is retrieved and used to recover a precise subject state, in particular by taking account of optimizations to generate the common-case target code (). The precise subject state is then used to precisely handle the exception.