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:
Dec. 10, 2019

Filed:

Oct. 19, 2015
Applicant:

Arm Limited, Cambridge, GB;

Inventor:

Max John Batley, Cambridge, GB;

Assignee:

ARM Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01);
U.S. Cl.
CPC ...
G06F 9/30043 (2013.01); G06F 9/30098 (2013.01); G06F 9/30145 (2013.01);
Abstract

A mechanism is provided for improving performance when executing unaligned load instructions which load an unaligned block of data from a data store. In a first unaligned load handling mode, a final load operation of a series of load operations performed for the instruction loads a full data word extending beyond the end of the unaligned block of data to be loaded by that instruction. If an initial portion of the unaligned block of data to be loaded by a subsequent unaligned load instruction corresponds to the excess part in the stream buffer for the earlier instruction, then an initial load operation for the subsequent instruction can be suppressed. A mechanism is also described for allowing series of dependent data access operations triggered by a given instruction to be halted partway through when a stall condition arises, and resumed partway through later, by defining overlapping sequences of transactions.


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