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:
Aug. 12, 1997
Filed:
Aug. 01, 1995
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention is directed to a program control unit which enables a program control to achieve an efficient loop processing which does not immediately follow a loop instruction and which contains a start address and end address. In the program control unit, the start address and end address of a loop processing are stored in a register (start) (7) and a register (end) (8), respectively, in synchronization with a clock t1. The stored data 'start' of the register (7) and the stored data 'end' of the register (8) are inputted to a comparator (12) and a comparator (11), respectively. The comparator (12) compares the output from a delay program counter (18) with the data 'start', and sets a flag f start when the comparison result indicates agreement and otherwise resets it. The comparator (11) compares the output from a delay program counter (18) with the data 'end', and sets a flag f end when the comparison result indicates agreement and otherwise resets it.