GB1360094A - Data processing system - Google Patents
Data processing systemInfo
- Publication number
- GB1360094A GB1360094A GB4458171A GB4458171A GB1360094A GB 1360094 A GB1360094 A GB 1360094A GB 4458171 A GB4458171 A GB 4458171A GB 4458171 A GB4458171 A GB 4458171A GB 1360094 A GB1360094 A GB 1360094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- error
- main processor
- processor
- data
- sequence
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1405—Saving, restoring, recovering or retrying at machine instruction level
- G06F11/141—Saving, restoring, recovering or retrying at machine instruction level for bus or memory accesses
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Hardware Redundancy (AREA)
- Debugging And Monitoring (AREA)
Abstract
1360094 Error detection/correction INTERNATIONAL BUSINESS MACHINES CORP 24 Sept 1971 [2 Oct 1970] 44581/71 Heading G4A A data processing system includes a main processor HVS having a plurality of check circuits, and an error processor FVS operable to monitor the main processor check circuits and, in the event that it detects a signal indicating an error within the main processor, to obtain the source data involved from the main processor, compute the correct result from that data, transfer the correct result to the main processor and cause the latter to execute its next program step. The error processor may be a relatively simple serial machine connected to a disc file 3 from where it obtains an error routine and other data and to which it supplies data relating to the number and types of errors detected in the main processor (error logging). The error check circuits in the main processor may be parity circuits each having a unique address, the error processor being arranged to scan all the error check circuits in sequence in each cycle by applying their address in sequence to a decoder which enables a number of AND gates in sequence, the AND gates being connected via an OR gate to a bus which is connected to the error processor. A typical operating sequence is as follows. The main processor executes a microprogram step after which an error check is made. In the event of an error the error processor determines where the error occurred, initiates an error LOG routine, and accepts data from the main processor which will enable it to perform the erroneous step if necessary. The main processor is then instructed to repeat the step leading to the error. If this retry results in the same error the error processor performs the step and inserts the result into the appropriate unit in the main processor which is then instructed to perform the next microprogram step. When the error processor performs a step in this way it actuates the logging of the error on its associated disc file.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702048473 DE2048473C3 (en) | 1970-10-02 | Fault data computer of lower performance connected to a main data computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1360094A true GB1360094A (en) | 1974-07-17 |
Family
ID=5784022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4458171A Expired GB1360094A (en) | 1970-10-02 | 1971-09-24 | Data processing system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5133701B1 (en) |
| FR (1) | FR2105868A5 (en) |
| GB (1) | GB1360094A (en) |
-
1971
- 1971-07-30 FR FR7129460A patent/FR2105868A5/fr not_active Expired
- 1971-09-14 JP JP7099071A patent/JPS5133701B1/ja active Pending
- 1971-09-24 GB GB4458171A patent/GB1360094A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2105868A5 (en) | 1972-04-28 |
| JPS5133701B1 (en) | 1976-09-21 |
| DE2048473B2 (en) | 1975-04-03 |
| DE2048473A1 (en) | 1972-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5490155A (en) | Error correction system for n bits using error correcting code designed for fewer than n bits | |
| US3518413A (en) | Apparatus for checking the sequencing of a data processing system | |
| EP0075631A1 (en) | Apparatus for logging hard memory read errors | |
| US3786430A (en) | Data processing system including a small auxiliary processor for overcoming the effects of faulty hardware | |
| EP0380858A3 (en) | Method and apparatus for detecting and correcting errors in a pipelined computer system | |
| EP0037705A1 (en) | Error correcting memory system | |
| US4231089A (en) | Data processing system with apparatus for correcting microinstruction errors | |
| GB1264195A (en) | ||
| GB1287238A (en) | Error detection and correction apparatus | |
| GB1299962A (en) | Data processor interrupt system | |
| GB1360094A (en) | Data processing system | |
| GB1247746A (en) | Data processing machines | |
| JP3124278B2 (en) | Inspection method of memory cell contents of program memory | |
| CA1093213A (en) | Apparatus and method for the storing parity encoded data from a plurality of input/output sources | |
| GB1310664A (en) | Data handling systems | |
| SU903886A1 (en) | Device for detecting errors in processor testing units | |
| GB1264066A (en) | ||
| JPS6158041A (en) | Microinstruction execution control method | |
| SU484521A1 (en) | Device for detecting errors in digital machines | |
| JPS58199499A (en) | Data processor | |
| JPS6051135B2 (en) | Instruction word verification method by adding parity bits | |
| GB1329722A (en) | Memory protection arrangements for data processing systems | |
| SU1072050A1 (en) | Device for checking error detection/corrrection blocks,operated with hamming code | |
| JPS5515510A (en) | Check system of information processing system | |
| JPH0619726B2 (en) | Information processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |