JPS57100532A - Exponent display system - Google Patents
Exponent display systemInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009265738A (en) * | 2008-04-22 | 2009-11-12 | Kyocera Corp | Electronic appliance |
-
1980
- 1980-12-16 JP JP17751680A patent/JPS57100532A/en active Granted
Cited By (1)
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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