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.

Date of Patent:
Feb. 25, 2014

Filed:

Sep. 16, 2010
Applicants:

Antony John Penton, Cambridge, GB;

Simon Axford, Cambridge, GB;

Inventors:

Antony John Penton, Cambridge, GB;

Simon Axford, Cambridge, GB;

Assignee:

ARM Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a data processing apparatushaving registers, when a state saving trigger event occurs while a result value of a data processing operation is still to be written to a destination register then saving and restoring control circuitryselects a state saving sequence defining a temporal order for saving register values to a backup data store. The sequence is selected to provide the destination register with a position within the sequence corresponding to a time after the result value has been written to the destination register. The register values are then saved to the backup data storein the order of the selected state saving sequence. A similar technique can be used when a state restoring trigger event triggers loading of the data values from the backup data storeto the registers


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