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:
May. 18, 2021
Filed:
Aug. 09, 2019
Fujitsu Limited, Kawasaki, JP;
Takashi Suzuki, Kawasaki, JP;
Seiji Hirao, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An arithmetic processing apparatus includes weight tables each configured to store weighting factors in one-to-one correspondence with indexes associated with instruction addresses, a first weight arithmetic unit configured to perform a first operation and a second operation based on the weighting factors retrieved from the weight tables in response to an instruction fetch address, the first operation producing a first value for branch prediction for the instruction fetch address, the second operation producing second values for future branch prediction, and a second weight arithmetic unit configured to perform, in parallel with the second operation, a third operation equivalent to the second operation based on the weighting factors retrieved from the weight tables in response to an address of a completed branch instruction, wherein the second values stored in the first weight arithmetic unit are replaced with the third values upon detection of a wrong branch prediction.