JPS6481060A - Program update system for data processor - Google Patents

Program update system for data processor

Info

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
Application number
JP23963787A
Other languages
Japanese (ja)
Inventor
Mitsuro Korehisa
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP23963787A priority Critical patent/JPS6481060A/en
Publication of JPS6481060A publication Critical patent/JPS6481060A/en
Pending legal-status Critical Current

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.
JP23963787A 1987-09-22 1987-09-22 Program update system for data processor Pending JPS6481060A (en)

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)

Similar Documents

Publication Publication Date Title
JPS6426923A (en) Mouse pointer having changeable emulation mode
JPS6481060A (en) Program update system for data processor
JPS6472237A (en) Address calculation system
JPS6431285A (en) Portable electronic equipment
JPS56124930A (en) Initial program loader system
JPS5741701A (en) Setting device of control parameter
JPS54152431A (en) Split system for crt screen
JPS52142443A (en) Microprogram write-in method
JPS5734249A (en) Program alteration controlling system in program processing device
EP0303462A3 (en) Program processing system having standard program for processing optionally post-stored programs
JPS5720833A (en) Sequence controller
JPS642103A (en) Programmable controller
JPS53135682A (en) Operation state display system
JPS5453842A (en) Program run control circuit
JPS51112245A (en) Monitor control system of electronic computer organization
JPS6474590A (en) Display device
JPS57203139A (en) Monitor display system of programmable controller
JPS6417160A (en) Graphic display system for graphic processor
JPS554609A (en) Display unit
JPS6491258A (en) Backup system of work station
JPS6428703A (en) Programming device for programmable controller
JPS642150A (en) Damp execution control system
JPS554603A (en) Sequential control system by microprogram
JPS6429896A (en) Display controller
JPS6421529A (en) Graphic display control system