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:
Nov. 03, 2020
Filed:
May. 18, 2017
Handling contingent and non-contingent memory access program instructions making use of disable flag
Arm Limited, Cambridge, GB;
Nigel John Stephens, Cambridge, GB;
Grigorios Magklis, Cambridge, GB;
ARM Limited, Cambridge, GB;
Abstract
A data processing apparatus and method serve to manage access permission checking in respect of contingent memory access operations (the access permission failure of which does not alter program flow) in dependence of a contingent-access permission checking disable flag. If the contingent access disable flag has a first value, then this disables memory permission circuitry e.g. a walk state machine, from performing a check as to whether or not the memory access circuitry is permitted to perform a requested memory access. Non-contingent memory accesses are able to utilise the memory permission circuitry irrespective of the value of the contingent-access permission checking disable flag.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile