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IT969830B - PERFECTED SYSTEM FOR SEARCHING AND DETERMINING ERRORS IN A DATA PROCESSING SYSTEM - Google Patents

PERFECTED SYSTEM FOR SEARCHING AND DETERMINING ERRORS IN A DATA PROCESSING SYSTEM

Info

Publication number
IT969830B
IT969830B IT3083672A IT3083672A IT969830B IT 969830 B IT969830 B IT 969830B IT 3083672 A IT3083672 A IT 3083672A IT 3083672 A IT3083672 A IT 3083672A IT 969830 B IT969830 B IT 969830B
Authority
IT
Italy
Prior art keywords
processor
store
error
program
programs
Prior art date
Application number
IT3083672A
Other languages
Italian (it)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT969830B publication Critical patent/IT969830B/en

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
    • G06F11/2294—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
    • 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
    • G06F11/26—Functional testing
    • G06F11/273—Tester hardware, i.e. output processing circuits
    • G06F11/2736—Tester hardware, i.e. output processing circuits using a dedicated service processor for test

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)
  • Debugging And Monitoring (AREA)

Abstract

1359239 Data processing system; error detection INTERNATIONAL BUSINESS MACHINES CORP 22 Nov 1972 [30 Dec 1971] 54048/72 Heading G4A A data processing system includes a central data processing unit (not shown), a peripheral unit control processor 1 having an internal store 2 and being arranged to execute error detection programs relating to errors in its associated peripheral units 3, an interface processing unit 4 having an internal store 5, and an external store 6 connected to the interface processor and arranged to store error detection programs, the arrangement being such that the interface processor 4 transfers a selected error program from the external store 6 to its internal store 5 and the control processor 1 transfers the error program from the interface processor store 5 to its internal store 2 for execution. The arrangement allows error diagnosis of the peripherals to be performed independently of the central processing unit. During normal operation of the system the interface processor 4 is controlled by the central processor (CPU) via line 10. A special code is entered via keyboard 8 to inform the CPU that processor 4 is unavailable. A list of available error programs stored on tape 6, it being stated that a magnetic disc may be used, is read into processor 4 and displayed at 7. One of the programs is selected using the keyboard 8 and is read from store 6 into the internal store 5. The peripheral processor 1 is then informed that an error program has been selected. Processor 1, after executing each instruction originating from the CPU, checks whether an error program has been selected and, during periods when it is otherwise unoccupied, transfers the program into its internal store 2 for execution also during periods when it is otherwise unoccupied. Following execution of an error program any resulting data is transferred to processor 4 for display at 7. Further error programs may then be selected by the keyboard 8. Alternatively several error programs may be chained together, a subsequent program being selected by a program just finishing and being written into store 2 as above to replace the earlier program.
IT3083672A 1971-12-30 1972-10-24 PERFECTED SYSTEM FOR SEARCHING AND DETERMINING ERRORS IN A DATA PROCESSING SYSTEM IT969830B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165589 DE2165589A1 (en) 1971-12-30 1971-12-30 ARRANGEMENT FOR PROGRAM-CONTROLLED DETERMINATION OF ERRORS IN A DATA PROCESSING SYSTEM

Publications (1)

Publication Number Publication Date
IT969830B true IT969830B (en) 1974-04-10

Family

ID=5829735

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3083672A IT969830B (en) 1971-12-30 1972-10-24 PERFECTED SYSTEM FOR SEARCHING AND DETERMINING ERRORS IN A DATA PROCESSING SYSTEM

Country Status (5)

Country Link
JP (1) JPS5215500B2 (en)
DE (1) DE2165589A1 (en)
FR (1) FR2170659A5 (en)
GB (1) GB1359239A (en)
IT (1) IT969830B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188144A (en) * 1975-01-17 1976-08-02
JPS57147763A (en) * 1981-03-07 1982-09-11 Fujitsu Ltd Evacuation restoring system of test program
JPS57162043A (en) * 1981-03-31 1982-10-05 Fujitsu Ltd Diagnostic system
EP0115566B1 (en) * 1982-12-09 1990-11-28 International Business Machines Corporation Method for testing the operation of an i/o controller in a data processing system
US4583222A (en) * 1983-11-07 1986-04-15 Digital Equipment Corporation Method and apparatus for self-testing of floating point accelerator processors
FR2575847A1 (en) * 1985-01-04 1986-07-11 Pragmadyne Sarl Device and method for assistance for a computer processing unit
GB2213683B (en) * 1987-12-11 1992-04-29 Dpce Computer Services Limited Channel tester
JPH0287247A (en) * 1988-09-26 1990-03-28 Hitachi Ltd Maintenance diagnosing system for input and output processor
US4974080A (en) * 1989-06-13 1990-11-27 Magni Systems, Inc. Signal generator with display and memory card

Also Published As

Publication number Publication date
DE2165589A1 (en) 1973-07-19
JPS5215500B2 (en) 1977-04-30
GB1359239A (en) 1974-07-10
FR2170659A5 (en) 1973-09-14
JPS4879556A (en) 1973-10-25

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