JPS56153467A - Minicomputer equipped with general expression function - Google Patents

Minicomputer equipped with general expression function

Info

Publication number
JPS56153467A
JPS56153467A JP5619580A JP5619580A JPS56153467A JP S56153467 A JPS56153467 A JP S56153467A JP 5619580 A JP5619580 A JP 5619580A JP 5619580 A JP5619580 A JP 5619580A JP S56153467 A JPS56153467 A JP S56153467A
Authority
JP
Japan
Prior art keywords
registers
data
general expression
operations
display buffer
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
JP5619580A
Other languages
Japanese (ja)
Other versions
JPS6116109B2 (en
Inventor
Hisashi Ito
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP5619580A priority Critical patent/JPS56153467A/en
Priority to US06/214,719 priority patent/US4386412A/en
Priority to GB8039892A priority patent/GB2068153B/en
Priority to DE3047251A priority patent/DE3047251C2/en
Publication of JPS56153467A publication Critical patent/JPS56153467A/en
Publication of JPS6116109B2 publication Critical patent/JPS6116109B2/ja
Granted 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)

Abstract

PURPOSE:To make repetitive calculations using the same calculation expression possible, by making it possible to lock contents of the general expression. CONSTITUTION:RAM3 is provided with registers X, Y, and Z, registers, for example, A-J, a display buffer, etc., and the X register is provided to store entry data and display data, and Y and Z registers are provided to operate data. Further, A-J registers are provided to protect data due to key operations of the past when operations are executed according to the perfect numerical expression, and general expression data is stored in the display buffer. In respect to the arithmetic operation, operations are not executed successively in accordance with operation priority levels but all operations are executed at the equal key (=) operation time, and contents of A-J registers and the display buffer in RAM3 are left as they are. That is, the general expression in the display buffer is locked, and repetitive calculations using the same general expression become possible by inputting optional data to A-J registers.
JP5619580A 1979-12-17 1980-04-30 Minicomputer equipped with general expression function Granted JPS56153467A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5619580A JPS56153467A (en) 1980-04-30 1980-04-30 Minicomputer equipped with general expression function
US06/214,719 US4386412A (en) 1979-12-17 1980-12-09 Calculator with equation display device
GB8039892A GB2068153B (en) 1979-12-17 1980-12-12 Calculator
DE3047251A DE3047251C2 (en) 1979-12-17 1980-12-16 computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5619580A JPS56153467A (en) 1980-04-30 1980-04-30 Minicomputer equipped with general expression function

Publications (2)

Publication Number Publication Date
JPS56153467A true JPS56153467A (en) 1981-11-27
JPS6116109B2 JPS6116109B2 (en) 1986-04-28

Family

ID=13020324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5619580A Granted JPS56153467A (en) 1979-12-17 1980-04-30 Minicomputer equipped with general expression function

Country Status (1)

Country Link
JP (1) JPS56153467A (en)

Also Published As

Publication number Publication date
JPS6116109B2 (en) 1986-04-28

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