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.

Date of Patent:
Aug. 20, 1991

Filed:

Jun. 08, 1990
Applicant:
Inventor:

Yoshiko Yamaguchi, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ; 3642318 ; 36423223 ; 3642394 ; 364247 ; 3642472 ; 3642474 ; 3642476 ; 3642478 ; 364258 ; 364259 ; 3642602 ; 3642624 ; 3642626 ;
Abstract

A reduced instruction set type microprocessor which reduces loss of central processing unit (CPU) time. A circuit is provided to identify and keep track of whether an arithmetic instruction requires operands contained in internal registers or in main memory. First and second execution stage circuits are provided for executing the first and second instruction executing functions, respectively. The first execution stage circuit performs address calculation if the instruction involves main memory. The second execution stage circuit selects the appropriate operands and performs the arithmetic operation.


Find Patent Forward Citations

Yamaguchi, Yoshiko. (1991). Reduced instruction set computer (risc) type microprocessor executing (U.S. Patent No. 5041968). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5041968

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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