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:
Jan. 06, 2004
Filed:
Jun. 28, 2000
Takashi Miyamori, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The present invention provides a processor capable of carrying out a plurality of operation instructions simultaneously in one cycle which improves utilization of an instruction when carrying out a single operation instruction, and a system equipped with such a processor. In this processor, an operation mode indicating whether or not a coprocessor should be run in parallel is retained in an operation mode register, and in the integer processor operation mode, a value “0” is set in the operation mode register in an operation mode controller of an integer processor, and an instruction register delivers an integer processor instruction to a decoder, so that an execution unit will execute the integer processor instruction, and outputs a no operation instruction to a data processor without embedding an instruction that defines an operation thereof, and puts the data processor in the halt condition. On the other hand, in the parallel processing operation mode, a value “1” is set in the operation mode register in the operation mode controller, and the instruction register delivers the integer processor instruction to the decoder, and outputs a data processor instruction to the data processor to carry out data processing. Because the integer processor operation mode requires the integer processor instruction alone in the instruction string, utilization of the instructions can be improved.