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:
Jul. 06, 2021
Filed:
Jan. 05, 2018
Applicant:
Arm Limited, Cambridge, GB;
Inventors:
Neil Burgess, Cardiff, GB;
Lee Evan Eisen, Round Rock, TX (US);
Assignee:
Arm Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/34 (2018.01); G06F 9/38 (2018.01); G06F 12/02 (2006.01); G06F 9/30 (2018.01);
U.S. Cl.
CPC ...
G06F 9/30098 (2013.01); G06F 9/30003 (2013.01); G06F 9/3826 (2013.01); G06F 9/3842 (2013.01); G06F 12/02 (2013.01); G06F 9/30101 (2013.01); G06F 9/30105 (2013.01); G06F 9/384 (2013.01); G06F 9/3857 (2013.01);
Abstract
An in-order processor has a mapping storage element to store current register mapping information identifying, for each of two or more architectural register specifiers, which physical register specifies valid data for that architectural register specifier. At least one checkpoint storage element stores checkpoint register mapping corresponding to a checkpoint of previous architectural state. This enables checkpoints to be saved and restored simply by transferring mapping information between the mapping and checkpoint storage elements, rather than transferring the actual state data.