GB1315673A - Digital computer installations - Google Patents

Digital computer installations

Info

Publication number
GB1315673A
GB1315673A GB1315673DA GB1315673A GB 1315673 A GB1315673 A GB 1315673A GB 1315673D A GB1315673D A GB 1315673DA GB 1315673 A GB1315673 A GB 1315673A
Authority
GB
United Kingdom
Prior art keywords
register
data
circuit
computer
error
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
Application number
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.)
Robotron VEB
Original Assignee
Robotron VEB
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 Robotron VEB filed Critical Robotron VEB
Publication of GB1315673A publication Critical patent/GB1315673A/en
Expired legal-status Critical Current

Links

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
    • G06F11/14—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)
  • Debugging And Monitoring (AREA)

Abstract

1315673 Digital computers; error detection KOMBINAT ROBOTRON VEB 12 June 1970 28667/70 Heading G4A A circuit arrangement determines whether errors in a digital computer are temporary or permanent by counting the number of times that an error is repeated. A computer 1 executes an operating step under control of data in control register 2, which data is transferred to a holding register 6 by a circuit 7. Error detection circuits 4 detect any errors in the execution of the step and inform a fault control circuit 5 which causes the contents of register 6 to be returned to register 2, thus repeating the step. A counter in circuit 5 classifies a fault as permanent after a predetermined number of repetitions. If there is no error fresh data is fetched from control unit 3. In another embodiment (Fig. 2, not shown) the computer is microprogrammed and the transferred data is the address of a microinstruction.
GB1315673D 1970-06-12 1970-06-12 Digital computer installations Expired GB1315673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2866770 1970-06-12

Publications (1)

Publication Number Publication Date
GB1315673A true GB1315673A (en) 1973-05-02

Family

ID=10279233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1315673D Expired GB1315673A (en) 1970-06-12 1970-06-12 Digital computer installations

Country Status (1)

Country Link
GB (1) GB1315673A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105710A2 (en) * 1982-09-28 1984-04-18 Fujitsu Limited Method for recovering from error in a microprogram-controlled unit
EP0120186A2 (en) * 1983-03-24 1984-10-03 International Business Machines Corporation Apparatus for automatic instruction parity error recovery
EP0256267A2 (en) * 1986-08-12 1988-02-24 Hitachi, Ltd. Microprocessor for retrying data transfer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105710A2 (en) * 1982-09-28 1984-04-18 Fujitsu Limited Method for recovering from error in a microprogram-controlled unit
EP0105710A3 (en) * 1982-09-28 1986-09-03 Fujitsu Limited Method for recovering from error in a microprogram-controlled unit
EP0120186A2 (en) * 1983-03-24 1984-10-03 International Business Machines Corporation Apparatus for automatic instruction parity error recovery
EP0120186A3 (en) * 1983-03-24 1988-01-27 International Business Machines Corporation Apparatus and method for automatic instruction parity error recovery
EP0256267A2 (en) * 1986-08-12 1988-02-24 Hitachi, Ltd. Microprocessor for retrying data transfer
EP0256267A3 (en) * 1986-08-12 1989-10-25 Hitachi, Ltd. Microprocessor for retrying data transfer

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees