JPS56127264A - Electronic calculator - Google Patents

Electronic calculator

Info

Publication number
JPS56127264A
JPS56127264A JP2997380A JP2997380A JPS56127264A JP S56127264 A JPS56127264 A JP S56127264A JP 2997380 A JP2997380 A JP 2997380A JP 2997380 A JP2997380 A JP 2997380A JP S56127264 A JPS56127264 A JP S56127264A
Authority
JP
Japan
Prior art keywords
register
signal
gate
data
electronic calculator
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
JP2997380A
Other languages
Japanese (ja)
Inventor
Hideki Yagi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2997380A priority Critical patent/JPS56127264A/en
Publication of JPS56127264A publication Critical patent/JPS56127264A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To grasp the using condition of an electronic calculator, by actuating the display blinking circuit with use of the signal sent from the final data shunting register and then deciding the overflow of the shunting register. CONSTITUTION:When the operation control part decides a necessity of shunt for the midway result with operation of both the multiplication and division keys of the key input part 10, the signal, the signal 101 is transmitted to the inputs of the OR gate 14 and AND gate 72. With operation of the arithmetic keys of the part 10, the signal 103 is supplied to the OR gate 15 from the control part 11. Then the data is stored in the registers 21-25. After this, the output of the register 36 is supplied to the register 26 and data detecting circuit 20, and the output of the circuit 20 is led to the display part 12 to give a blinking to the part 12 for a decision of overflow of the data shunting register. In such way, the using condition can be grasped for an electronic calculator.
JP2997380A 1980-03-10 1980-03-10 Electronic calculator Pending JPS56127264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2997380A JPS56127264A (en) 1980-03-10 1980-03-10 Electronic calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2997380A JPS56127264A (en) 1980-03-10 1980-03-10 Electronic calculator

Publications (1)

Publication Number Publication Date
JPS56127264A true JPS56127264A (en) 1981-10-05

Family

ID=12290898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2997380A Pending JPS56127264A (en) 1980-03-10 1980-03-10 Electronic calculator

Country Status (1)

Country Link
JP (1) JPS56127264A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5457930A (en) * 1977-10-18 1979-05-10 Casio Comput Co Ltd Overflow detection system
JPS5457912A (en) * 1977-10-18 1979-05-10 Casio Comput Co Ltd Error display system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5457930A (en) * 1977-10-18 1979-05-10 Casio Comput Co Ltd Overflow detection system
JPS5457912A (en) * 1977-10-18 1979-05-10 Casio Comput Co Ltd Error display system

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