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:
Jul. 19, 2022
Filed:
Nov. 04, 2020
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Vignyan Reddy Kothinti Naresh, Redmond, WA (US);
Arthur Perais, Grenoble, FR;
Rami Mohammad Al Sheikh, Morrisville, NC (US);
Shivam Priyadarshi, Morrisville, NC (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Predicting load-based control independent (CI), register data independent (DI) (CIRDI) instructions as CI memory data dependent (DD) (CIMDD) instructions for replay in speculative misprediction recovery in a processor. The processor predicts if a source of a load-based CIRDI instruction will be forwarded by a store-based instruction (i.e. 'store-forwarded'). If a load-based CIRDI instruction is predicted as store-forwarded, the load-based CIRDI instruction is considered a CIMDD instruction and is replayed in misprediction recovery. If a load-based CIRDI instruction is not predicted as store-forwarded, the processor considers such load-based CIRDI instruction as a pending load-based CIRDI instruction. If this pending load-based CIRDI instruction is determined in execution to be store-forwarded, the instruction pipeline is flushed and the pending load-based CIRDI instruction is also replayed in misprediction recovery. If this pending load-based CIRDI instruction is not determined in execution to be store-forwarded, the pending load-based CIRDI instruction is not replayed in misprediction recovery.