JPS5699547A - Main memory contents save system in case of system failure - Google Patents

Main memory contents save system in case of system failure

Info

Publication number
JPS5699547A
JPS5699547A JP76880A JP76880A JPS5699547A JP S5699547 A JPS5699547 A JP S5699547A JP 76880 A JP76880 A JP 76880A JP 76880 A JP76880 A JP 76880A JP S5699547 A JPS5699547 A JP S5699547A
Authority
JP
Japan
Prior art keywords
memory
case
main memory
system failure
stored
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
JP76880A
Other languages
Japanese (ja)
Inventor
Osamu Tsuji
Masatoshi Takahara
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing Co 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP76880A priority Critical patent/JPS5699547A/en
Publication of JPS5699547A publication Critical patent/JPS5699547A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To enable to store and save the memory contents of the main memory exactly and automatically to the auxiliary memory device, by executing a memory save control program stored in the ROM, when system failure has been detected. CONSTITUTION:A processing program stored in the main memory 3 is usually executed and processed by the CPU1, but in case the CPU1 has detected a logical absurdity in the course of the processing execution, or in case the monitoring timer 6 has operated, it is regarded as system failure, and the CPU1 executes the memory save control program stored in the ROM5. As a result, the memory contents on the main memory 3 are stored in the auxiliary memory device 4. Since the memory save program is stored in the ROM5, even in case of system failure, its contents are not broken down, and therefore, the memory contents on the main memory 3 are stored in the device 4 exactly and automatically, and the cause of system failure is investigated correctly.
JP76880A 1980-01-07 1980-01-07 Main memory contents save system in case of system failure Pending JPS5699547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP76880A JPS5699547A (en) 1980-01-07 1980-01-07 Main memory contents save system in case of system failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP76880A JPS5699547A (en) 1980-01-07 1980-01-07 Main memory contents save system in case of system failure

Publications (1)

Publication Number Publication Date
JPS5699547A true JPS5699547A (en) 1981-08-10

Family

ID=11482867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP76880A Pending JPS5699547A (en) 1980-01-07 1980-01-07 Main memory contents save system in case of system failure

Country Status (1)

Country Link
JP (1) JPS5699547A (en)

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