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:
Jul. 09, 2013
Filed:
Mar. 24, 2008
Yoshimasa Takebe, Kawasaki, JP;
Yoshimasa Takebe, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A microprocessor which realizes fast register saving and restoring which are involved in subroutine calls, and is capable of reducing the scale of a program. A register file is provided with at least one register for storing data to be used for computational processing. A saving memory stores therein data saved from the registers. A saving control unit saves data from a writing destination register to the saving memory when an instruction to write to the register is executed in a subroutine. Then the saving control unit restores data saved in the saving memory back to the original registers when an instruction to return from the subroutine is executed.