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:
Oct. 17, 2023
Filed:
Nov. 24, 2021
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Rami Mohammad Al Sheikh, Morrisville, NC (US);
Michael Scott McIlvaine, Raleigh, NC (US);
Daren Eugene Streett, Cary, NC (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Performing branch predictor training using probabilistic counter updates in a processor is disclosed herein. In some aspects, a branch predictor training circuit of a processor is configured to determine whether a first branch prediction generated for a first conditional branch instruction by a branch predictor circuit of the processor is correct. Based on determining whether the first branch prediction is correct, the branch predictor training circuit probabilistically updates a first counter, corresponding to the first branch prediction, of a plurality of counters of a first branch predictor table of a plurality of branch predictor tables. In some aspects, the branch predictor training circuit probabilistically updates the first counter based on a global probability value corresponding to all branch predictor tables, while in some aspects the branch predictor training circuit is configured to probabilistically update the first counter based on a table-specific probability value corresponding to the first branch predictor table.