JPS56162124A - Time monitoring system - Google Patents

Time monitoring system

Info

Publication number
JPS56162124A
JPS56162124A JP6481680A JP6481680A JPS56162124A JP S56162124 A JPS56162124 A JP S56162124A JP 6481680 A JP6481680 A JP 6481680A JP 6481680 A JP6481680 A JP 6481680A JP S56162124 A JPS56162124 A JP S56162124A
Authority
JP
Japan
Prior art keywords
time information
interruption
inhibition
constant period
stepwise
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
JP6481680A
Other languages
Japanese (ja)
Inventor
Yasuo Ogasawara
Toru Tejima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6481680A priority Critical patent/JPS56162124A/en
Publication of JPS56162124A publication Critical patent/JPS56162124A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4825—Interrupt from clock, e.g. time of day

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To get rid of an error of time information due to inhibition of interruption, and to improve a system economically, by stepwise forwarding the time information by the number of constant period signals, in a central processing system equipment which generates the time information by a clock interruption signal. CONSTITUTION:The number of accumulation CN of a constant period signal CLS which is offered at 10 millisecond intervals is added to a counting part C3, and when a count value attains to 50, the counting part C3 transfers an output signal to a time information display part T, and the time information is forwarded stepwise by 500 milliseconds each. Since the constant period signal CLS which is not influenced by inhibition of interruption is used, an error of time information due to inhibition of interruption is not caused.
JP6481680A 1980-05-16 1980-05-16 Time monitoring system Pending JPS56162124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6481680A JPS56162124A (en) 1980-05-16 1980-05-16 Time monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6481680A JPS56162124A (en) 1980-05-16 1980-05-16 Time monitoring system

Publications (1)

Publication Number Publication Date
JPS56162124A true JPS56162124A (en) 1981-12-12

Family

ID=13269143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6481680A Pending JPS56162124A (en) 1980-05-16 1980-05-16 Time monitoring system

Country Status (1)

Country Link
JP (1) JPS56162124A (en)

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