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:
Jun. 07, 2011

Filed:

Dec. 07, 2009
Applicants:

Yasunobu Akizuki, Kawasaki, JP;

Toshio Yoshida, Kawasaki, JP;

Tomohiro Tanaka, Kawasaki, JP;

Ryuji Kan, Kawasaki, JP;

Inventors:

Yasunobu Akizuki, Kawasaki, JP;

Toshio Yoshida, Kawasaki, JP;

Tomohiro Tanaka, Kawasaki, JP;

Ryuji Kan, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/38 (2006.01); G06F 9/52 (2006.01);
U.S. Cl.
CPC ...
Abstract

An instruction execution control device operates a plurality of threads in a simultaneous multi-thread system. The device has architecture registers (--) for each thread, and a selection circuit () which, when an operand data required for executing a function is read from a register file (), selects in advance a thread to be read from the register file (). This makes it possible to select an architecture register at an early stage, and although the number of circuits in a portion for selecting the architecture registers increases, the wiring amount of the circuits can be decreased, because the architecture register of the thread to be read is selected in advance.


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