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. 15, 2002
Filed:
Mar. 11, 1999
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A data processor is provided to increase the number of instructions it can handle, even with a large number of operands required for the instructions. The data processor comprises a decoding circuit ( ) extracting bits (a , a ) of an instruction as first operand fields and decoding an operation code, using the remaining bits (a4); an operand-field storage portion ( ) including a first operand-field storage portion ( a) storing bits (a , a ) obtained from the decoding circuit ( ) via a selector ( ), and a second operand-field storage portion ( b) storing a second operand field obtained on the basis of those bits (a ); and a data processing portion ( ) receiving the first and the second operand fields from the operand-field storage portion ( ) and processing data in registers designated by the first and the second operand fields.