JPS6479830A - Program control system for multitask system - Google Patents

Program control system for multitask system

Info

Publication number
JPS6479830A
JPS6479830A JP23496387A JP23496387A JPS6479830A JP S6479830 A JPS6479830 A JP S6479830A JP 23496387 A JP23496387 A JP 23496387A JP 23496387 A JP23496387 A JP 23496387A JP S6479830 A JPS6479830 A JP S6479830A
Authority
JP
Japan
Prior art keywords
task
tcb
pointer
interruption
execution time
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
JP23496387A
Other languages
Japanese (ja)
Inventor
Shigeru Adachi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP23496387A priority Critical patent/JPS6479830A/en
Publication of JPS6479830A publication Critical patent/JPS6479830A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prolong an execution time, as well to a task with low priority with some extent by applying a continuous execution time to be used for continuously executing tasks to each task and applying priority orders to respective tasks in accordance with the length of the continuous execution time. CONSTITUTION:Since the priority of a task (1)551 is '10', the task (1)551 is continuously driven until 10 times of an interruption are generated from a timer device 53. At the time of the 10th interruption, the task (1)551 is returned to a ready state 23. When a task schedular 5c is made access, the task schedular 54c transfers a task (2)552 pointed out by a 'READY' table TCB pointer to a 'RUN' TCB pointer to execute the task (2)552. Since the TCB 561 address of the task (1)551 is set up in a queue pointer of a TCB 562 of the task (2)552, the address of TCB 561 of the task (1)551 is set up in the 'READY' TCB pointer. Thus, the task (1) is executed during the period of 10 times of interruption and the task (2) is executed during the period of 20 times of interruptions.
JP23496387A 1987-09-21 1987-09-21 Program control system for multitask system Pending JPS6479830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23496387A JPS6479830A (en) 1987-09-21 1987-09-21 Program control system for multitask system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23496387A JPS6479830A (en) 1987-09-21 1987-09-21 Program control system for multitask system

Publications (1)

Publication Number Publication Date
JPS6479830A true JPS6479830A (en) 1989-03-24

Family

ID=16978996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23496387A Pending JPS6479830A (en) 1987-09-21 1987-09-21 Program control system for multitask system

Country Status (1)

Country Link
JP (1) JPS6479830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005107818A (en) * 2003-09-30 2005-04-21 Kyocera Mita Corp Arbitration device and image forming device using it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005107818A (en) * 2003-09-30 2005-04-21 Kyocera Mita Corp Arbitration device and image forming device using it

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