JPS6481060A - Program update system for data processor - Google Patents
Program update system for data processorInfo
- Publication number
- JPS6481060A JPS6481060A JP23963787A JP23963787A JPS6481060A JP S6481060 A JPS6481060 A JP S6481060A JP 23963787 A JP23963787 A JP 23963787A JP 23963787 A JP23963787 A JP 23963787A JP S6481060 A JPS6481060 A JP S6481060A
- Authority
- JP
- Japan
- Prior art keywords
- program
- memory device
- command
- flag
- area
- 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
Landscapes
- Stored Programmes (AREA)
Abstract
PURPOSE:To update the operation programs of a main memory device without destroying a back-up program stored in an external memory device by updating the program after changing a working program storing area flag by a command. CONSTITUTION:A working program storing area flag 31 of an external memory device 3 can be changed with input of a command from a command input terminal equipment 4. Then one of (n) pieces of program storing areas PA 321-PA32n is designated. For instance, an area PA32i is designated and a central arithmetic processor 2 starts an initialization program by initialization. At the same time, the processor 2 reads the program out of the area PA32i shown by the flag 31 and stores it into a main memory device 1. In such a way, the program of the memory device 1 can be updated without destroying the programs stored in the areas PA321-PA32n.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23963787A JPS6481060A (en) | 1987-09-22 | 1987-09-22 | Program update system for data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23963787A JPS6481060A (en) | 1987-09-22 | 1987-09-22 | Program update system for data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6481060A true JPS6481060A (en) | 1989-03-27 |
Family
ID=17047675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23963787A Pending JPS6481060A (en) | 1987-09-22 | 1987-09-22 | Program update system for data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6481060A (en) |
-
1987
- 1987-09-22 JP JP23963787A patent/JPS6481060A/en active Pending
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