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:
Mar. 14, 2017
Filed:
Dec. 29, 2015
International Business Machines Corporation, Armonk, NY (US);
Lee E. Eisen, Round Rock, TX (US);
Lisa C. Heller, Rhinebeck, NY (US);
Michael T. Huffer, Walden, NY (US);
Eric M. Schwarz, Gardiner, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for tracing instruction streams for a multi-threaded processor are disclosed herein. In one embodiment, the apparatus includes a last thread register configured to store a thread index that indicates a last executed thread, a tracing memory configured to store, within each of a plurality of storage locations, state information corresponding to a dispatch cycle for a multi-threaded processor, and a tracing control module configured to provide the state information to the tracing memory. The state information includes instruction information and a previous thread index. The state information may also include a flip bit that is used to determine a current insertion point within the tracing memory.