JPS56149638A - Cursor control circuit - Google Patents
Cursor control circuitInfo
- Publication number
- JPS56149638A JPS56149638A JP5272680A JP5272680A JPS56149638A JP S56149638 A JPS56149638 A JP S56149638A JP 5272680 A JP5272680 A JP 5272680A JP 5272680 A JP5272680 A JP 5272680A JP S56149638 A JPS56149638 A JP S56149638A
- Authority
- JP
- Japan
- Prior art keywords
- cursor
- character
- shift
- contents
- circuit
- 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 shift the cursor to the character displayed at an optional position within a display screen, by retrieving the character existing in the designated direction of shift and then comparing the cursor position with the retrieved character position in a cursor control circuit.
CONSTITUTION: When the shift direction of a cursor is supplied through the input terminal 1, the adding/subtracting circuit 6 gives an addition or subtraction of the extent of shift to the contents of the registers 2 and 3 based on the cursor shift direction to deliver the contents to the register circuits 7 and 8. The retrieving circuit 10 retrieves the position of the character stored in the storing circuit 9 based on the cursor shift direction supplied from the terminal 1 plus the contents of the registers 2 and 3. In case the corresponding character exists, the retrieval end signal 13 is delivered. Otherwise, the signal 14 is delivered. In such way, the character nearest the cursor shift direction supplied through the terminal 1 is retrieved easily.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5272680A JPS56149638A (en) | 1980-04-21 | 1980-04-21 | Cursor control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5272680A JPS56149638A (en) | 1980-04-21 | 1980-04-21 | Cursor control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56149638A true JPS56149638A (en) | 1981-11-19 |
JPS612951B2 JPS612951B2 (en) | 1986-01-29 |
Family
ID=12922919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5272680A Granted JPS56149638A (en) | 1980-04-21 | 1980-04-21 | Cursor control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149638A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59116691A (en) * | 1982-12-23 | 1984-07-05 | カシオ計算機株式会社 | Cursor control system |
JPH0619443A (en) * | 1993-03-19 | 1994-01-28 | Toshiba Corp | Information processor |
-
1980
- 1980-04-21 JP JP5272680A patent/JPS56149638A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59116691A (en) * | 1982-12-23 | 1984-07-05 | カシオ計算機株式会社 | Cursor control system |
JPH0122621B2 (en) * | 1982-12-23 | 1989-04-27 | Casio Computer Co Ltd | |
JPH0619443A (en) * | 1993-03-19 | 1994-01-28 | Toshiba Corp | Information processor |
Also Published As
Publication number | Publication date |
---|---|
JPS612951B2 (en) | 1986-01-29 |
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