JPS5469334A - Display data conversion system - Google Patents
Display data conversion systemInfo
- Publication number
- JPS5469334A JPS5469334A JP13650177A JP13650177A JPS5469334A JP S5469334 A JPS5469334 A JP S5469334A JP 13650177 A JP13650177 A JP 13650177A JP 13650177 A JP13650177 A JP 13650177A JP S5469334 A JPS5469334 A JP S5469334A
- Authority
- JP
- Japan
- Prior art keywords
- data
- display
- display portion
- mantissa
- decimal point
- 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 avoid erasure of significant figures under a decimal point by detecting the decimal position of mantissa data in every operation of a specified key and, when the value exceeds the limit of display contents of the mantissa data display portion, inhibiting conversion of display data.
CONSTITUTION: In the miniature electronic computer where display portion 24 for mantissa and exponential data is set and operation of data including the exponential data is executed in arithmetic circuit 16, conversion key 25a, which converts the display data to exponential type, and inversion key 25b are set on key input portion 25. The register region which stores the decimal point position data of the lowest digit of mantissa data display portion, decimal point position data, whose position is higher than the highest position of the display portion by the number of digits corresponding to the number of digits of the display portion and decimal point position data is set in RAM3. A stated number is added to the exponential data or reduced from it in every operation of key 25a or 25b and the same manner is applied to the decimal point position data; when the value exceeds the limit of display contents mantissa data display portion, conversion of the display data is inhibited by the output of timing decorder 9.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13650177A JPS6051730B2 (en) | 1977-11-14 | 1977-11-14 | Display data conversion method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13650177A JPS6051730B2 (en) | 1977-11-14 | 1977-11-14 | Display data conversion method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5469334A true JPS5469334A (en) | 1979-06-04 |
JPS6051730B2 JPS6051730B2 (en) | 1985-11-15 |
Family
ID=15176631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13650177A Expired JPS6051730B2 (en) | 1977-11-14 | 1977-11-14 | Display data conversion method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6051730B2 (en) |
-
1977
- 1977-11-14 JP JP13650177A patent/JPS6051730B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6051730B2 (en) | 1985-11-15 |
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