Title:
VARIABLE HISTORY LENGTH PERCEPTRON BRANCH PREDICTOR
Document Type and Number:
WIPO Patent Application WO/2022/047437
Kind Code:
A3
Abstract:
The present disclosure related to perceptron based branch prediction methods, devices, and systems. One example method includes storing, in a memory, multiple perceptron tables, determining, based on a branch program counter (PC) and a branch history and from among the multiple perceptron tables, a perceptron stored in a first perceptron table, obtaining weights of the perceptron stored in the first perceptron table, determining, based on the weights and the branch history, a branch prediction indicating a prediction of a direction that a branch will take upon instruction execution, and obtaining one or more instructions based on the predicted direction. Each perceptron table of the multiple perceptron tables has a different branch history length and a different tag length.
Inventors:
LIU FANGPING (US)
DO SANG WOOK (US)
VAN RICHARD (US)
DO SANG WOOK (US)
VAN RICHARD (US)
Application Number:
PCT/US2021/061364
Publication Date:
September 15, 2022
Filing Date:
December 01, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F9/30
Foreign References:
| US20210232400A1 | 2021-07-29 | |||
| US20160048395A1 | 2016-02-18 | |||
| US20180203704A1 | 2018-07-19 |
Attorney, Agent or Firm:
ZHOU, Congzhou et al. (US)
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