JPS5587251A - Error recovery system of logic unit - Google Patents

Error recovery system of logic unit

Info

Publication number
JPS5587251A
JPS5587251A JP16242978A JP16242978A JPS5587251A JP S5587251 A JPS5587251 A JP S5587251A JP 16242978 A JP16242978 A JP 16242978A JP 16242978 A JP16242978 A JP 16242978A JP S5587251 A JPS5587251 A JP S5587251A
Authority
JP
Japan
Prior art keywords
error
instruction
retried
job
interrupted
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
JP16242978A
Other languages
Japanese (ja)
Other versions
JPS6156537B2 (en
Inventor
Tsunetaka Fujiwara
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 JP16242978A priority Critical patent/JPS5587251A/en
Publication of JPS5587251A publication Critical patent/JPS5587251A/en
Publication of JPS6156537B2 publication Critical patent/JPS6156537B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Retry When Errors Occur (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE: To recover completely an error when a fixed fault occurs to CPU by stopping execution on detecting the error by several logic units, by displaying whether an error occurrence instruction is allowed to be reexecuted or not, and then by restarting the execution by a recovery controller when it is allowed.
CONSTITUTION: The moment error detection circuit 130 detects an error, clock oscillation circuit 131 is stopped and at the same time, a job in process is interrupted by control part 31 of recovery controller 30 to start control over a recovery process, so that the contents of program operatable register groups 111W119 of CPU10 will be read in via stand-by interface 121. In unit 30, instruction retry disability indicator 132 judges whether an instruction at the time of the occurrence of the error can be retried or not. When it can be retried, it is retried by a signal from unit 30 and when not, a job in process is interrupted by CPU20 to execute an error instruction.
COPYRIGHT: (C)1980,JPO&Japio
JP16242978A 1978-12-26 1978-12-26 Error recovery system of logic unit Granted JPS5587251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16242978A JPS5587251A (en) 1978-12-26 1978-12-26 Error recovery system of logic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16242978A JPS5587251A (en) 1978-12-26 1978-12-26 Error recovery system of logic unit

Publications (2)

Publication Number Publication Date
JPS5587251A true JPS5587251A (en) 1980-07-01
JPS6156537B2 JPS6156537B2 (en) 1986-12-03

Family

ID=15754430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16242978A Granted JPS5587251A (en) 1978-12-26 1978-12-26 Error recovery system of logic unit

Country Status (1)

Country Link
JP (1) JPS5587251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341943A (en) * 1986-08-08 1988-02-23 Nec Corp Error restoring system for logic unit
JPH02157943A (en) * 1988-12-09 1990-06-18 Nec Corp Data manipulation language instruction retesting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341943A (en) * 1986-08-08 1988-02-23 Nec Corp Error restoring system for logic unit
JPH02157943A (en) * 1988-12-09 1990-06-18 Nec Corp Data manipulation language instruction retesting system

Also Published As

Publication number Publication date
JPS6156537B2 (en) 1986-12-03

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