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.

Date of Patent:
Oct. 28, 2014

Filed:

Oct. 24, 2011
Applicants:

Yi GE, Kawasaki, JP;

Yoshimasa Takebe, Kawasaki, JP;

Hiromasa Takahashi, Kawasaki, JP;

Inventors:

Yi Ge, Kawasaki, JP;

Yoshimasa Takebe, Kawasaki, JP;

Hiromasa Takahashi, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01); G06F 9/30 (2006.01); G06F 9/38 (2006.01);
U.S. Cl.
CPC ...
G06F 9/30014 (2013.01); G06F 9/3836 (2013.01); G06F 9/30149 (2013.01);
Abstract

A vector processing circuit includes a vector register file including a plurality of array elements, a command issuance control circuit, and a plurality of pipeline arithmetic units. Each pipeline arithmetic unit performs arithmetic processing of data stored in the array elements indicated as a source by one command in parts through a plurality of cycles and stores the result in the array elements indicated as a destination by the one command through a plurality of cycles. When data word length of a preceding command is longer than that of a subsequent command, the command issuance control circuit changes data sizes of the array elements in accordance with data word length of the command and determines whether there is register interference between the array element to be processed at a non-head cycle of the preceding command, and the array element to be processed at a head cycle of the subsequent command.


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