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:
Jul. 26, 2016

Filed:

Mar. 20, 2013
Applicant:

Arm Limited, Cambridge, GB;

Inventors:
Assignee:

ARM Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2006.01); G06F 9/40 (2006.01); G06F 9/38 (2006.01);
U.S. Cl.
CPC ...
G06F 9/3017 (2013.01); G06F 9/30098 (2013.01); G06F 9/384 (2013.01); G06F 9/3857 (2013.01); G06F 9/3863 (2013.01);
Abstract

Register renaming circuitry for a processing apparatus configured to process a stream of instructions from an instruction set specifying registers from an architectural set of registers. The apparatus including a physical set of registers configured to store data values being processed by the processing apparatus. Register renaming circuitry is configured to receive a stream of operations from an instruction decoder and to map registers that are to be written to by the stream of operations to physical registers within the physical set of registers that are currently available. The register renaming circuitry comprises register release circuitry configured to release the physical registers that have been mapped to the registers when a first set of conditions have been met, and to release the physical registers that have been mapped to the additional registers when a second set of conditions have been met.


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