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:
Aug. 20, 2024
Filed:
Nov. 05, 2020
Applicant:
Arm Limited, Cambridge, GB;
Inventor:
Thomas Christopher Grocutt, Cambridge, GB;
Assignee:
Arm Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/38 (2018.01); G06F 9/30 (2018.01);
U.S. Cl.
CPC ...
G06F 9/3861 (2013.01); G06F 9/30054 (2013.01); G06F 9/30189 (2013.01);
Abstract
Processing circuitry has a handler mode and a thread mode. In response to an exception condition, a switch to handler mode is made. In response to an intermodal calling branch instruction specifying a branch target address when the processing circuitry is in the handler mode, an instruction decoder controls the processing circuitry to save a function return address to a function return address storage location; switch a current mode of the processing circuitry to the thread mode; and branch to an instruction identified by the branch target address. This can be useful for deprivileging of exceptions.