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:
Jan. 23, 2018
Filed:
May. 03, 2012
Guillermo J. Rozas, Los Gatos, CA (US);
Paul Serris, San Jose, CA (US);
Brad Hoyt, Portland, OR (US);
Sridharan Ramakrishnan, Hillsboro, OR (US);
Hens Vanderschoot, Tigard, OR (US);
Ross Segelken, Portland, OR (US);
Darrell Boggs, Aloha, OR (US);
Magnus Ekman, Alameda, CA (US);
Guillermo J. Rozas, Los Gatos, CA (US);
Paul Serris, San Jose, CA (US);
Brad Hoyt, Portland, OR (US);
Sridharan Ramakrishnan, Hillsboro, OR (US);
Hens Vanderschoot, Tigard, OR (US);
Ross Segelken, Portland, OR (US);
Darrell Boggs, Aloha, OR (US);
Magnus Ekman, Alameda, CA (US);
NVIDIA CORPORATION, Santa Clara, CA (US);
Abstract
Embodiments related to re-dispatching an instruction selected for re-execution from a buffer upon a microprocessor re-entering a particular execution location after runahead are provided. In one example, a microprocessor is provided. The example microprocessor includes fetch logic, one or more execution mechanisms for executing a retrieved instruction provided by the fetch logic, and scheduler logic for scheduling the retrieved instruction for execution. The example scheduler logic includes a buffer for storing the retrieved instruction and one or more additional instructions, the scheduler logic being configured, upon the microprocessor re-entering at a particular execution location after runahead, to re-dispatch, from the buffer, an instruction that has been previously dispatched to one of the execution mechanisms.