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. 01, 2002

Filed:

Oct. 21, 1997
Applicant:
Inventors:

Shinichi Moriwaki, Kawasaki, JP;

Masahiro Yanagida, Kawasaki, JP;

Shuntaro Fujioka, Kawasaki, JP;

Hidenobu Ohta, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/576 ;
U.S. Cl.
CPC ...
G06F 1/576 ;
Abstract

A pipeline operation method and a pipeline operation device in which an operation result of an operation unit can be effectively written to a register. In the pipeline operation method and the pipeline operation device, a pipeline operation unit that can perform a pipeline operation, a non-pipeline operation unit that cannot perform a pipeline operation, and a register that is shared by the pipeline operation unit and the non-pipeline operation unit are arranged. To perform an operation while an operation result of each of the pipeline units is being written into the register, translating an instruction to the pipeline operation unit is interlocked when the writing of the operation result of the pipeline operation unit overlaps with the writing of the operation result of the non-pipeline operation unit. The pipeline operation method and the pipeline operation device are applicable to a computing system where plural operation units including pipeline operation units and non-pipeline operation units share one writing port to perform an arithmetic operation.


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