JPS5251838A - Computer - Google Patents

Computer

Info

Publication number
JPS5251838A
JPS5251838A JP50127770A JP12777075A JPS5251838A JP S5251838 A JPS5251838 A JP S5251838A JP 50127770 A JP50127770 A JP 50127770A JP 12777075 A JP12777075 A JP 12777075A JP S5251838 A JPS5251838 A JP S5251838A
Authority
JP
Japan
Prior art keywords
microprogram
computer
arithmetic
exection
ensured
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.)
Granted
Application number
JP50127770A
Other languages
Japanese (ja)
Other versions
JPS5949621B2 (en
Inventor
Shigeru Toyomura
Takeshi Kawanabe
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP50127770A priority Critical patent/JPS5949621B2/en
Priority to DE19762647876 priority patent/DE2647876C2/en
Publication of JPS5251838A publication Critical patent/JPS5251838A/en
Priority to US05/867,503 priority patent/US4164789A/en
Publication of JPS5949621B2 publication Critical patent/JPS5949621B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/027—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes for insertion of the decimal point

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: Both the microprogram word test pattern and the terms of controlled circuit state are determined by use of ordinary arithmetic bus and arithmetic circuit. In this way, an economical control can be ensured for microprogram exection order.
COPYRIGHT: (C)1977,JPO&Japio
JP50127770A 1975-10-23 1975-10-23 Keisanki Expired JPS5949621B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50127770A JPS5949621B2 (en) 1975-10-23 1975-10-23 Keisanki
DE19762647876 DE2647876C2 (en) 1975-10-23 1976-10-22 Electronic calculator
US05/867,503 US4164789A (en) 1975-10-23 1978-01-06 Electronic apparatus for dealing with numerical information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50127770A JPS5949621B2 (en) 1975-10-23 1975-10-23 Keisanki

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59170253A Division JPS6063658A (en) 1984-08-14 1984-08-14 Electronic equipment

Publications (2)

Publication Number Publication Date
JPS5251838A true JPS5251838A (en) 1977-04-26
JPS5949621B2 JPS5949621B2 (en) 1984-12-04

Family

ID=14968251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50127770A Expired JPS5949621B2 (en) 1975-10-23 1975-10-23 Keisanki

Country Status (2)

Country Link
JP (1) JPS5949621B2 (en)
DE (1) DE2647876C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106940A (en) * 1980-12-24 1982-07-03 Canon Inc Electronic equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499927A (en) * 1972-05-22 1974-01-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499927A (en) * 1972-05-22 1974-01-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106940A (en) * 1980-12-24 1982-07-03 Canon Inc Electronic equipment

Also Published As

Publication number Publication date
JPS5949621B2 (en) 1984-12-04
DE2647876A1 (en) 1977-05-05
DE2647876C2 (en) 1984-03-29

Similar Documents

Publication Publication Date Title
JPS5268340A (en) Data processing unit
JPS5220735A (en) Microprogram controlled computer system
JPS5378747A (en) Error display system
JPS522342A (en) Buffer memory controlling system
JPS5251838A (en) Computer
JPS526030A (en) Address control system
JPS5391741A (en) Computer control system of copier
JPS526426A (en) Interrupt decision information control equipment
JPS5338942A (en) Communication control unit
JPS52102661A (en) Phase control circuit and application for osillation circuit
JPS5278334A (en) Program sequence check system
JPS522328A (en) Date processing unit
JPS5211729A (en) Information processing unit
JPS5326543A (en) Logical operation equipment
JPS52107744A (en) Program control order circuit
JPS5246740A (en) Calculator
JPS51131237A (en) Electronic register
JPS5343449A (en) Interruption system for electronic computer
JPS52133737A (en) Digit design ation system
JPS5244591A (en) Service control equipment
JPS51138140A (en) Line control memory access control system
JPS5251837A (en) Execution order control system of microprogram in data processing unit
JPS52128018A (en) Input control method of electronic equipment
JPS5270289A (en) Sequence control apparatus
JPS5249740A (en) Microprogram control system