JPS57207964A - Information processing device - Google Patents

Information processing device

Info

Publication number
JPS57207964A
JPS57207964A JP56094472A JP9447281A JPS57207964A JP S57207964 A JPS57207964 A JP S57207964A JP 56094472 A JP56094472 A JP 56094472A JP 9447281 A JP9447281 A JP 9447281A JP S57207964 A JPS57207964 A JP S57207964A
Authority
JP
Japan
Prior art keywords
circuit
counted
becomes
circuits
difference
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
JP56094472A
Other languages
Japanese (ja)
Inventor
Koemon Nigo
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56094472A priority Critical patent/JPS57207964A/en
Publication of JPS57207964A publication Critical patent/JPS57207964A/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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/076—Error or fault detection not based on redundancy by exceeding limits by exceeding a count or rate limit, e.g. word- or bit count limit

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To detect deteriorated performance caused by prescribed phenomena, by reporting to the software, when the difference in the value of two counter circuits becomes higher than a prescribed value. CONSTITUTION:Counter circuits 1 and 2 are counted in the same way unless there is an i-bit error of a control memory. Moreover, when the circuit totally becomes ''1'', both circuits 1 and 2 are reset. When an 1-bit error of the control memory is detected under this condition, the execution of a micro instruction is stopped for one machine cycle and the 1-bit error is corrected while the micro instruction is stopped, and, at the same time, an execution indicate signal 12 becomes ''0''. Then, the circuit 1 is counted and the circuit 2 is not counted. In such a way, if the difference between counted values of the circuits 1 and 2 becomes larger than 1/2 when the circuit 1 totally becomes ''1'', a performance deterioration detecting circuit 3 detects the difference and sets a performance deterioration indicating signal 15 to ''1'', then, reports this matter to the software.
JP56094472A 1981-06-18 1981-06-18 Information processing device Pending JPS57207964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094472A JPS57207964A (en) 1981-06-18 1981-06-18 Information processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094472A JPS57207964A (en) 1981-06-18 1981-06-18 Information processing device

Publications (1)

Publication Number Publication Date
JPS57207964A true JPS57207964A (en) 1982-12-20

Family

ID=14111217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094472A Pending JPS57207964A (en) 1981-06-18 1981-06-18 Information processing device

Country Status (1)

Country Link
JP (1) JPS57207964A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065149A (en) * 1973-10-11 1975-06-02
JPS5537654A (en) * 1978-09-08 1980-03-15 Nec Corp Information processor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065149A (en) * 1973-10-11 1975-06-02
JPS5537654A (en) * 1978-09-08 1980-03-15 Nec Corp Information processor

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