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. 07, 2020
Filed:
Jul. 28, 2015
Arm Limited, Cambridge, GB;
Rune Holm, Cambridge, GB;
David Hennah Mansell, Norwich, GB;
ARM Limited, Cambridge, GB;
Abstract
A data processing apparatus () executes threads and includes a general program counter (PC) () identifying an instruction to be executed for at least a subset of the threads. Each thread has a thread PC (). The subset of threads has at least one lock parameter (-) for tracking exclusive access to shared resources. In response to a first instruction executed for a thread, the processor () modifies the at least one lock parameter (), (-) to indicate that the thread has gained exclusive access to the shared resource. In response to a second instruction, the processor modifies the at least one lock parameter (-) to indicate that the thread no longer has exclusive access. A selector () selects one of the subset of threads based on the at least one lock parameter (-) and sets the general PC () to the thread PC () of the selected thread.