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:
Jun. 23, 1987
Filed:
Oct. 31, 1984
Hitachi, Ltd., Tokyo, JP;
Abstract
An execution processing device for executing variable length floating-point data of exponent part designated by two or more kinds of representation systems and fixed length floating-point data of exponent part designated by two or more kinds of representation systems, includes a converting circuit which converts the data of various representation systems into a common representation system which is capable of expressing the data in a common data form responsive to an operation mode that is provided to discriminate the various representation systems at the time of reading and operating on the data of the various representation systems stored in a storage unit according to the same load instruction. An arithmetic unit introduces the data converted by said converting circuit into the common representation system, which performs the operation designated by the same instruction, and which produces the operation result as the data of the common representation system. A converting circuit converts the data of the common representation system into said various representation systems to store them in the storage unit responsive to the operation mode at the time of storing the data produced from the arithmetic unit in the storage unit according to the same store instruction.