JPS6479830A - Program control system for multitask system - Google Patents
Program control system for multitask systemInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-21 JP JP23496387A patent/JPS6479830A/en active Pending
Cited By (1)
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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