JPS5776640A - Diagnostic system for additional processor - Google Patents
Diagnostic system for additional processorInfo
- Publication number
- JPS5776640A JPS5776640A JP15283180A JP15283180A JPS5776640A JP S5776640 A JPS5776640 A JP S5776640A JP 15283180 A JP15283180 A JP 15283180A JP 15283180 A JP15283180 A JP 15283180A JP S5776640 A JPS5776640 A JP S5776640A
- Authority
- JP
- Japan
- Prior art keywords
- additional processor
- processor
- instruction
- circuit
- fault
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE:To facilitate the periodic fault diagnosis of an additional processor, by operating a diagnosing circuit by decoding a specific instruction, which is to be executed by a central processor, by the additional processor. CONSTITUTION:A central processor 1 fetches an instruction from a storage device 3 and then executes it through a common bus 101, but this instruction is fetched by even a register 21 in an additional processor 2 and decoded by a decoder 22. Only when the instruction is specified, a diagnostic control circuit 23 operates to access a self-diagnostic program stored in a storage circuit 24, thereby performing the fault diagnosis of a circuit 25 to be diagnosed. If the fault is found as a result of the diagnosis, the result is set in a holding register 26. The central processor 1, when using the additional processor 2, checks the contents of the holding register 26 to know the fault state of the additional processor 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283180A JPS5776640A (en) | 1980-10-30 | 1980-10-30 | Diagnostic system for additional processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283180A JPS5776640A (en) | 1980-10-30 | 1980-10-30 | Diagnostic system for additional processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5776640A true JPS5776640A (en) | 1982-05-13 |
Family
ID=15549082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15283180A Pending JPS5776640A (en) | 1980-10-30 | 1980-10-30 | Diagnostic system for additional processor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5776640A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60175152A (en) * | 1983-11-07 | 1985-09-09 | デイジタル イクイプメント コ−ポレ−シヨン | Method and apparatus for self-testing floating-point acceleration processor |
| JPS6172346A (en) * | 1984-09-17 | 1986-04-14 | Nec Corp | Memory diagnosis control system |
| JPS63228340A (en) * | 1987-03-18 | 1988-09-22 | Fujitsu Ltd | Testing system for controller in data process system |
-
1980
- 1980-10-30 JP JP15283180A patent/JPS5776640A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60175152A (en) * | 1983-11-07 | 1985-09-09 | デイジタル イクイプメント コ−ポレ−シヨン | Method and apparatus for self-testing floating-point acceleration processor |
| JPH0574099B2 (en) * | 1983-11-07 | 1993-10-15 | Digital Equipment Corp | |
| JPS6172346A (en) * | 1984-09-17 | 1986-04-14 | Nec Corp | Memory diagnosis control system |
| JPS63228340A (en) * | 1987-03-18 | 1988-09-22 | Fujitsu Ltd | Testing system for controller in data process system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS54114687A (en) | Sequence controller | |
| JPS5776640A (en) | Diagnostic system for additional processor | |
| JPS56132647A (en) | Diagnostic system | |
| JPS57105070A (en) | Control system of register interference | |
| JPS5757065A (en) | Fault diagnostic processing system | |
| JPS56140409A (en) | Processing system for power failure and power restoration in sequence control device | |
| JPS57132255A (en) | Program tracing system | |
| JPS56166562A (en) | Data processor | |
| JPS56147256A (en) | Program branch system for mini electronic computer | |
| JPS56147246A (en) | Program control device | |
| JPS54117884A (en) | Sequence programmer | |
| JPS5771053A (en) | Diagnosing method for data processor | |
| JPS5455338A (en) | Microprogram controller | |
| JPS56168209A (en) | Process input and output controller | |
| JPS56121150A (en) | Instruction advance-taking system | |
| JPS6428746A (en) | Automatic diagnosing system | |
| JPS6435636A (en) | Evaluating system for test program for information processor | |
| JPS57100542A (en) | Information processor of microprogram control system | |
| JPS57162043A (en) | Diagnostic system | |
| JPS5729161A (en) | Diagnostic system | |
| JPS57133597A (en) | Information processing device | |
| JPS5760442A (en) | Instruction refetch control system | |
| DE3379688D1 (en) | Diagnostic system in a data processor | |
| JPS5619157A (en) | Diagnostic system for control circuit | |
| JPS57204952A (en) | Diagnostic processing system |