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:
May. 07, 2002
Filed:
Sep. 16, 1998
Applicant:
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/22 ; G06F 9/305 ; G06F 9/30 ; G06F 9/345 ; G06F 9/38 ;
U.S. Cl.
CPC ...
G06F 9/22 ; G06F 9/305 ; G06F 9/30 ; G06F 9/345 ; G06F 9/38 ;
Abstract
A data processing apparatus uses a stored-program method to execute an operation instructed by an instruction word that includes a register designation code as an operand. A plurality of work registers are identifiable by register numbers, each of a typical number of bits. A correspondence table holds at least one of the register numbers in a state corresponding to register designation codes. The codes are stored in a readable condition, and have fewer bits than the register numbers. The data processing apparatus refers to the correspondence table when executing the operation.