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:
May. 12, 2026
Filed:
Jul. 11, 2022
Sifive, Inc., San Mateo, CA (US);
Ernest L. Edgar, Colorado Springs, CO (US);
Bruce Ableidinger, Vancouver, WA (US);
SiFive, Inc., Santa Clara, CA (US);
Abstract
Systems and methods are disclosed for processor crash analysis using register sampling. For example, an integrated circuit may include a processor core configured to execute instructions, wherein the processor core includes a program counter register and an exception program counter register (e.g., a machine exception program counter register) that is configured to store a program counter value that was current when an exception occurred; a data store connected to the exception program counter register via an ingress port that is configured to store a copy of an exception program counter value responsive to retirement of an instruction; and an exception program counter capture register, configured to store an exception program counter value from the second data store responsive to a reset signal for the processor core.