JPS573146A - Retry control device for electronic computer - Google Patents

Retry control device for electronic computer

Info

Publication number
JPS573146A
JPS573146A JP7553880A JP7553880A JPS573146A JP S573146 A JPS573146 A JP S573146A JP 7553880 A JP7553880 A JP 7553880A JP 7553880 A JP7553880 A JP 7553880A JP S573146 A JPS573146 A JP S573146A
Authority
JP
Japan
Prior art keywords
counter
timing pulses
control device
electronic computer
cpu
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
Application number
JP7553880A
Other languages
Japanese (ja)
Inventor
Koichi Ikeda
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7553880A priority Critical patent/JPS573146A/en
Publication of JPS573146A publication Critical patent/JPS573146A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Retry When Errors Occur (AREA)

Abstract

PURPOSE:To reduce the amount of hardware required for discriminating whether retry is permitted or not, by providing one counter for the whole of a CPU. CONSTITUTION:When a fault is detected somewhere, ''1'' is given to an OR signal 11 of the fault detection signal from each part of a CPU, and the output of respective timing pulses is suppressed in gates 120-12N-1. A counter 13 generates N different values successively for respective inputs of N phase timing pulses and is returned to the original value after clapse of one machine cycle. Consequently, the value of this counter 13 is read to detect the progress of the output of N phase timing pulses.
JP7553880A 1980-06-06 1980-06-06 Retry control device for electronic computer Pending JPS573146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7553880A JPS573146A (en) 1980-06-06 1980-06-06 Retry control device for electronic computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7553880A JPS573146A (en) 1980-06-06 1980-06-06 Retry control device for electronic computer

Publications (1)

Publication Number Publication Date
JPS573146A true JPS573146A (en) 1982-01-08

Family

ID=13579079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7553880A Pending JPS573146A (en) 1980-06-06 1980-06-06 Retry control device for electronic computer

Country Status (1)

Country Link
JP (1) JPS573146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272329A (en) * 1986-05-20 1987-11-26 Nec Corp Retry system for move instruction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272329A (en) * 1986-05-20 1987-11-26 Nec Corp Retry system for move instruction

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