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:
Aug. 03, 2004
Filed:
Sep. 22, 2000
Tatsuo Teruyama, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
There is disclosed a bypass control method in which data can be set on a source register of an instruction to be executed on an instruction bus in a short time. A bypass control apparatus of the present invention includes a plurality of comparators for comparing the outputs of flip-flops for transferring a register number of a destination register on the instruction bus with each other. By utilizing a comparison result of a comparator for comparing the comparison results of these comparators with the register number of the source register on the instruction bus, a bypass path of data inputted to the source register of the instruction to be executed can be set in a short time. When a plurality of agreements are detected, the bypass path is set on the basis of the output of the flip-flop on a first stage side, so that it is possible to avoid a disadvantage inputting old data to the source register by mistake.