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:
Nov. 19, 2019
Filed:
Aug. 23, 2018
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yuki Kamikubo, Yokohama, JP;
Noriko Takagi, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An arithmetic processing unit includes a cache including a cache memory for storing states of data and data in a block at an index of the memory access request, a move-in buffer control unit that issues a move-in request when cache miss, and move-in buffers for registering the move-in request. The move-in buffer control unit, in response to cache miss, (a) secures a vacant move-in buffer when the vacant move-in buffer exists, (b) issues a move-in request when a move-in request having a same index as the memory access request is not registered in the move-in buffers, (c) issues the move-in request when the move-in request having the same index is registered in the move-in buffers and all ways are not used by the move-in request having the same index in the move-in buffers, and (d) releases the secured move-in buffer when all the ways are used.