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JPS5783839A - Control system for interruption request priority - Google Patents

Control system for interruption request priority

Info

Publication number
JPS5783839A
JPS5783839A JP15887580A JP15887580A JPS5783839A JP S5783839 A JPS5783839 A JP S5783839A JP 15887580 A JP15887580 A JP 15887580A JP 15887580 A JP15887580 A JP 15887580A JP S5783839 A JPS5783839 A JP S5783839A
Authority
JP
Japan
Prior art keywords
peripheral devices
central processor
priority
vector number
vector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15887580A
Other languages
Japanese (ja)
Inventor
Yuji Miura
Michio Kagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15887580A priority Critical patent/JPS5783839A/en
Publication of JPS5783839A publication Critical patent/JPS5783839A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4831—Task transfer initiation or dispatching by interrupt, e.g. masked with variable priority

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)

Abstract

PURPOSE:To facilitate changing the priority, by reading all data of vector number data lines by a central processor to select and determine the start address of an interruption processing program by the determined priority. CONSTITUTION:When an interruption request signal INT is received from peripheral devices 30A-30C by a central processor 10, an interruption response signal is returned from the central processor 10 to peripheral devices 30A-30C, and vector signals corresponding to the presence or the absence of the interruption request INT are generated in peripheral devices 30A-30C by vector signal generating circuits 60, respectively and are transmitted to individual vector number data lines 90A-90C. The central processor 10 reads all data of vector number data lines and selects and determines the start address of an interruption processing program, which should be executed and is related to peripheral devices 30A-30C, on the basis of contents of a vector number memory due to the predetermined priority. Consequently, contents of the vector number memory are rewritten to change the priority easily.
JP15887580A 1980-11-13 1980-11-13 Control system for interruption request priority Pending JPS5783839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15887580A JPS5783839A (en) 1980-11-13 1980-11-13 Control system for interruption request priority

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15887580A JPS5783839A (en) 1980-11-13 1980-11-13 Control system for interruption request priority

Publications (1)

Publication Number Publication Date
JPS5783839A true JPS5783839A (en) 1982-05-25

Family

ID=15681303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15887580A Pending JPS5783839A (en) 1980-11-13 1980-11-13 Control system for interruption request priority

Country Status (1)

Country Link
JP (1) JPS5783839A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327947U (en) * 1986-08-07 1988-02-24
JPH03142504A (en) * 1989-10-30 1991-06-18 Toshiba Corp Programmable controller
WO1995010806A1 (en) * 1993-10-12 1995-04-20 Sony Corporation Device and method for controlling interruption

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327947U (en) * 1986-08-07 1988-02-24
JPH03142504A (en) * 1989-10-30 1991-06-18 Toshiba Corp Programmable controller
WO1995010806A1 (en) * 1993-10-12 1995-04-20 Sony Corporation Device and method for controlling interruption
US5568643A (en) * 1993-10-12 1996-10-22 Sony Corporation Efficient interrupt control apparatus with a common interrupt control program and control method thereof

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