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:
Nov. 21, 1989

Filed:

Sep. 23, 1988
Applicant:
Inventor:

Hideshi Ishii, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
364900 ; 3642613 ; 3649380 ;
Abstract

A branch instruction processing unit executes a branch-on-count (BCT) instruction for loop control of a program by means of pipeline control. The unit includes a memory for storing the number of loops for each BCT instruction, a first storage register for storing the output of the memory, a detection circuit for detecting if the output of the memory is a '1' while the output is stored in the first storage register, a second storage register for storing the output of the first storage register, and a branch judgement circuit which judges if each instruction is taken in response to the detection of a '1' by the detection circuit while the output of the first storage register is being stored in the second storage register.


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