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. 06, 2014
Filed:
Aug. 31, 2009
Yuji Kawamura, Kanagawa, JP;
Takeshi Yamazaki, Kanagawa, JP;
Yuji Kawamura, Kanagawa, JP;
Takeshi Yamazaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Sony Computer Entertainment Inc., Tokyo, JP;
Abstract
A processor includes a CPU core which executes a user program, and a data transfer apparatus. The CPU core stores a transfer request from a user program in a specific area of a main memory, in which the transfer request specifies the virtual addresses of a transfer source and a transfer destination in a memory space allocated to the user program. The data transfer apparatus refers to the specific area of the main memory and acquires a transfer request asynchronously to processing performed by the CPU core. The data transfer apparatus then identifies physical addresses corresponding to virtual addresses specified in the transfer request. After that, the data transfer apparatus transcribes original data stored in a storage area indicated by the physical address of the transfer source, to a storage area in a cache memory related to the virtual address or physical address of the transfer destination.