JPS5743250A - Operation controlling device - Google Patents

Operation controlling device

Info

Publication number
JPS5743250A
JPS5743250A JP55119265A JP11926580A JPS5743250A JP S5743250 A JPS5743250 A JP S5743250A JP 55119265 A JP55119265 A JP 55119265A JP 11926580 A JP11926580 A JP 11926580A JP S5743250 A JPS5743250 A JP S5743250A
Authority
JP
Japan
Prior art keywords
storage section
error
detected
parity
outputted
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
JP55119265A
Other languages
Japanese (ja)
Inventor
Kazutoshi Eguchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55119265A priority Critical patent/JPS5743250A/en
Publication of JPS5743250A publication Critical patent/JPS5743250A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Correction Of Errors (AREA)

Abstract

PURPOSE:To contrive improvement of the reliabilty of the control storage section, by performing rereading of instructions when parity errors are detected in microinstructions read out from the control storage section, and by outputting error signals when errors are detected again during the course of rereading. CONSTITUTION:A parity check circuit 22 performs parity checks on microinstructions read out from a control storage section 11, and, when a parity error is detected, a selection signal 25 which makes void the results obtained by executing the microinstruction, is outputted from a retry control section 24. Microinstructions read out again from the storage section 11 is kept in a read data register 19, and outputted from the regiser 19, and then, receive parity check again at the circuit 22. In this case, if any error is detected, it is judged that the error is caused by a fatal inferiority of the storage section 11, and an error signal which prohibits retry of the storage section 11 is outputted. In this way, occurrence of erroneous operations are remarkably reduced and, at the same time, reliability of the control storage section 11 can be improved.
JP55119265A 1980-08-29 1980-08-29 Operation controlling device Pending JPS5743250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55119265A JPS5743250A (en) 1980-08-29 1980-08-29 Operation controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55119265A JPS5743250A (en) 1980-08-29 1980-08-29 Operation controlling device

Publications (1)

Publication Number Publication Date
JPS5743250A true JPS5743250A (en) 1982-03-11

Family

ID=14757056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55119265A Pending JPS5743250A (en) 1980-08-29 1980-08-29 Operation controlling device

Country Status (1)

Country Link
JP (1) JPS5743250A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59173849A (en) * 1983-03-24 1984-10-02 Nec Corp Data processing device
JPS62246334A (en) * 1986-04-17 1987-10-27 ヤマハ株式会社 Construction of unit bathroom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59173849A (en) * 1983-03-24 1984-10-02 Nec Corp Data processing device
JPS62246334A (en) * 1986-04-17 1987-10-27 ヤマハ株式会社 Construction of unit bathroom

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