JPS5478928A - Controller for peripheral memory unit - Google Patents

Controller for peripheral memory unit

Info

Publication number
JPS5478928A
JPS5478928A JP14611977A JP14611977A JPS5478928A JP S5478928 A JPS5478928 A JP S5478928A JP 14611977 A JP14611977 A JP 14611977A JP 14611977 A JP14611977 A JP 14611977A JP S5478928 A JPS5478928 A JP S5478928A
Authority
JP
Japan
Prior art keywords
memory section
failure
unit
data
retrieval
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.)
Granted
Application number
JP14611977A
Other languages
Japanese (ja)
Other versions
JPS6027412B2 (en
Inventor
Takashi Doi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP52146119A priority Critical patent/JPS6027412B2/en
Publication of JPS5478928A publication Critical patent/JPS5478928A/en
Publication of JPS6027412B2 publication Critical patent/JPS6027412B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To perform the retrieval failure stably and easily in the electronic computer system, by providing the control information memory section receiving and memorizing the instruction designating to use the special applications to the specific peripheral memory unit from CPU.
CONSTITUTION: When a failure is taken place in CPU 5 and the system reset is issued to the controller 7, which confirms whether the bit corresponding to the magnetic tape memory unit 14 during being connected is set to the control information memory section 12 or not, and if it is set, the unit 7 immediately writes in the data of the specific pattern (representing the occurrence of failure and predetermined) to the unit 14 during connection via the control section, and if it is finished, the corresponding bit of the memory section 12 is reset, and next, whether other bits are set to the memory section 12 or not is checked, and the same step is repeated until the bits set to the memory section 12 are absent. On the other hand, when the on-line failure retrieval program performs retrieval operation, after rewinding magnetic tape, the read-in is continued until the data of the specific pattern is appeared, and the end of the data can be known stably and easily.
COPYRIGHT: (C)1979,JPO&Japio
JP52146119A 1977-12-07 1977-12-07 Control device for peripheral storage devices Expired JPS6027412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52146119A JPS6027412B2 (en) 1977-12-07 1977-12-07 Control device for peripheral storage devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52146119A JPS6027412B2 (en) 1977-12-07 1977-12-07 Control device for peripheral storage devices

Publications (2)

Publication Number Publication Date
JPS5478928A true JPS5478928A (en) 1979-06-23
JPS6027412B2 JPS6027412B2 (en) 1985-06-28

Family

ID=15400577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52146119A Expired JPS6027412B2 (en) 1977-12-07 1977-12-07 Control device for peripheral storage devices

Country Status (1)

Country Link
JP (1) JPS6027412B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9748588B2 (en) 2007-09-26 2017-08-29 Intelligent Energy Limited Reverse flow relief valve for a fuel cell system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9748588B2 (en) 2007-09-26 2017-08-29 Intelligent Energy Limited Reverse flow relief valve for a fuel cell system

Also Published As

Publication number Publication date
JPS6027412B2 (en) 1985-06-28

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