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. 30, 2021
Filed:
Aug. 31, 2016
Qualcomm Incorporated, San Diego, CA (US);
Gregory Michael Wright, Chapel Hill, NC (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Replay of partially executed instruction blocks in a processor-based system employing a block-atomic execution model is disclosed. In one aspect, a partial replay controller is provided in a processor(s) of a central processing unit (CPU). If an instruction is detected in the instruction block associated with a potential architectural state modification, or an exception occurs during execution of instructions, the instruction block is re-executed. During re-execution of the instruction block, the partial replay controller is configured to record produced results from load/store instructions. Thus, if an exception occurs during re-execution of the instruction block, previously recorded produced results for the executed load/store instructions before the exception occurred are replayed during re-execution of the instruction block after the exception is resolved. Thus, execution of instructions leading up to side-effect operations in the instruction block can be deterministically repeated with previously produced results, without repeating the side-effects.