JPS5587251A - Error recovery system of logic unit - Google Patents
Error recovery system of logic unitInfo
- 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
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
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)
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 |
-
1978
- 1978-12-26 JP JP16242978A patent/JPS5587251A/en active Granted
Cited By (2)
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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