JPS5544637A - Display device - Google Patents
Display deviceInfo
- Publication number
- JPS5544637A JPS5544637A JP11786478A JP11786478A JPS5544637A JP S5544637 A JPS5544637 A JP S5544637A JP 11786478 A JP11786478 A JP 11786478A JP 11786478 A JP11786478 A JP 11786478A JP S5544637 A JPS5544637 A JP S5544637A
- Authority
- JP
- Japan
- Prior art keywords
- copying
- circuit
- area
- viewer
- address
- 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
Landscapes
- Digital Computer Display Output (AREA)
Abstract
PURPOSE: To realize the copying of the pattern displayed at part on the viewer to another area on the viewer by securing a processable constitution independently for the copying function.
CONSTITUTION: Copying control circuit 40 receives vertical and horizontal address data Vi and Hi to produce new addresses Vi' and Hi' each. Among the process functions of circuit 40 to perform the address conversion, the address designation of the copying destination is carried out via address bus AB and data buss DB. Bus AB performs the register designation within circuit 40, and bus DB performs designation for the data to be set to the designated register. To secure the square area for the copying destination, two registers are used for the upper left start point and the right lower finish point of the area. Thus the vertical and horizontal addresses of refresh memory 34 are converted temporarily in circuit 40, and the vertical and horizontal addresses on the viewer plus that of the refresh memory are defined as copying destination area 22 each to obtain the display state as shown in Fig. b.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53117864A JPS5827510B2 (en) | 1978-09-27 | 1978-09-27 | Display control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53117864A JPS5827510B2 (en) | 1978-09-27 | 1978-09-27 | Display control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5544637A true JPS5544637A (en) | 1980-03-29 |
JPS5827510B2 JPS5827510B2 (en) | 1983-06-09 |
Family
ID=14722176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53117864A Expired JPS5827510B2 (en) | 1978-09-27 | 1978-09-27 | Display control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5827510B2 (en) |
-
1978
- 1978-09-27 JP JP53117864A patent/JPS5827510B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5827510B2 (en) | 1983-06-09 |
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