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:
Jan. 09, 2007
Filed:
May. 02, 2002
Andrew Christopher Rose, Cambridge, GB;
Edward Colles Nevill, Huntingdon, GB;
Andrew Christopher Rose, Cambridge, GB;
Edward Colles Nevill, Huntingdon, GB;
ARM Limited, Cambridge, GB;
Abstract
Unhandled operation of a program instruction of a first instruction set, such as a Java bytecode, is detected. Instead of invoking a mechanism for directly dealing with that unhandled operation, one or more instructions from a second instruction set, such as ARM instructions, are instead used to emulate the instruction that was subject to the unhandled operation. If these instructions of the second instruction set are also subject to unhandled operation, then the mechanisms for dealing with unhandled operation within that second instruction set may be invoked to repair that operation. This approach is well suited to dealing with unhandled operation of variable length instructions being interpreted with a processor core having a native fixed length instruction set. In particular, prefetch aborts and unhandled floating point operations may be conveniently dealt with in this way.