JPS57100532A - Exponent display system - Google Patents

Exponent display system

Info

Publication number
JPS57100532A
JPS57100532A JP17751680A JP17751680A JPS57100532A JP S57100532 A JPS57100532 A JP S57100532A JP 17751680 A JP17751680 A JP 17751680A JP 17751680 A JP17751680 A JP 17751680A JP S57100532 A JPS57100532 A JP S57100532A
Authority
JP
Japan
Prior art keywords
digits
data
display
exponent
mantissa
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
JP17751680A
Other languages
Japanese (ja)
Other versions
JPS6235139B2 (en
Inventor
Minoru Usui
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 JP17751680A priority Critical patent/JPS57100532A/en
Priority to US06/328,474 priority patent/US4504829A/en
Priority to GB8137047A priority patent/GB2091467B/en
Priority to DE19813149905 priority patent/DE3149905A1/en
Publication of JPS57100532A publication Critical patent/JPS57100532A/en
Publication of JPS6235139B2 publication Critical patent/JPS6235139B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To display a larger amount of mantissa data, by switching the size of the display to increase the number of display digits in the case of an exponent display mode in which a numerical value is displayed by the exponent and mantissa data.
CONSTITUTION: In case the input data and the arithmetic result of a CPU11 exceed 8 digits, the mantissa and exponent data are stored in registers 11a and 11b, respectively. The control of the CPU11 is switched from 8 digits to 12 digits with a signal "1" given from a mode switching part 13. The exponent data, the blanking code and the mantissa data are stored in a digit 0.1, the digits 2 and 3, and the digits 4W11 of a display register 14 respectively to be supplied to a character pattern generating part 15 through terminals A1WA4. The data is read into a shift register 18 through terminals O1WO5 and via a latching circuit 16 plus gates 171W175 to be displayed at a display part 21 for every amount equivalent to a line of a character pattern. The character pattern is turned into 3×5 dots by the signal "1", and then counters 22 and 23 are actuated as 4-notation and duodecimal counters, respectively.
COPYRIGHT: (C)1982,JPO&Japio
JP17751680A 1980-12-16 1980-12-16 Exponent display system Granted JPS57100532A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP17751680A JPS57100532A (en) 1980-12-16 1980-12-16 Exponent display system
US06/328,474 US4504829A (en) 1980-12-16 1981-12-08 Electronic equipment
GB8137047A GB2091467B (en) 1980-12-16 1981-12-09 Electronic equipment
DE19813149905 DE3149905A1 (en) 1980-12-16 1981-12-16 ELECTRONIC DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17751680A JPS57100532A (en) 1980-12-16 1980-12-16 Exponent display system

Publications (2)

Publication Number Publication Date
JPS57100532A true JPS57100532A (en) 1982-06-22
JPS6235139B2 JPS6235139B2 (en) 1987-07-30

Family

ID=16032271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17751680A Granted JPS57100532A (en) 1980-12-16 1980-12-16 Exponent display system

Country Status (1)

Country Link
JP (1) JPS57100532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009265738A (en) * 2008-04-22 2009-11-12 Kyocera Corp Electronic appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009265738A (en) * 2008-04-22 2009-11-12 Kyocera Corp Electronic appliance

Also Published As

Publication number Publication date
JPS6235139B2 (en) 1987-07-30

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