JPS5530776A - Croll system - Google Patents

Croll system

Info

Publication number
JPS5530776A
JPS5530776A JP10364878A JP10364878A JPS5530776A JP S5530776 A JPS5530776 A JP S5530776A JP 10364878 A JP10364878 A JP 10364878A JP 10364878 A JP10364878 A JP 10364878A JP S5530776 A JPS5530776 A JP S5530776A
Authority
JP
Japan
Prior art keywords
line
scrolling
designation register
screen
scrol
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.)
Pending
Application number
JP10364878A
Other languages
Japanese (ja)
Inventor
Makoto Yamanouchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10364878A priority Critical patent/JPS5530776A/en
Publication of JPS5530776A publication Critical patent/JPS5530776A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To enable to remarkably reduce the cost, without lowering the processing efficiency of system, by providing the scrol number designation register and addition circuit, and scrolling the screen arbitrarily according to the scrolling number of line information. CONSTITUTION:The system adds the parts (within chained lines) that the line number counter 121 which counts the timing signal 133 from the character display control circuit CRTC 102 and checks the execution of the number of line on the present screen for the refresh operation, line designation register LREG 122 to designate to which line of the display screen is located at the fixed area, addition circuit 125 between one input of the multiplexer circuit MPX 104 and the address signal 134 from the CRTC 102, scrol number designation register NREG 124 to which the number of lines of scrolling is set as the conversion into number of characters.
JP10364878A 1978-08-25 1978-08-25 Croll system Pending JPS5530776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10364878A JPS5530776A (en) 1978-08-25 1978-08-25 Croll system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10364878A JPS5530776A (en) 1978-08-25 1978-08-25 Croll system

Publications (1)

Publication Number Publication Date
JPS5530776A true JPS5530776A (en) 1980-03-04

Family

ID=14359587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10364878A Pending JPS5530776A (en) 1978-08-25 1978-08-25 Croll system

Country Status (1)

Country Link
JP (1) JPS5530776A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107587A (en) * 1981-12-21 1983-06-27 日本電信電話株式会社 Character information display unit
JPS58195245A (en) * 1982-05-08 1983-11-14 Sanyo Electric Co Ltd Text device
JPS615282A (en) * 1984-06-19 1986-01-11 日本電信電話株式会社 Image display system
JPS6373292A (en) * 1986-09-17 1988-04-02 三菱電機株式会社 Character display device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107587A (en) * 1981-12-21 1983-06-27 日本電信電話株式会社 Character information display unit
JPS6348074B2 (en) * 1981-12-21 1988-09-27 Nippon Denshin Denwa Kk
JPS58195245A (en) * 1982-05-08 1983-11-14 Sanyo Electric Co Ltd Text device
JPH0440731B2 (en) * 1982-05-08 1992-07-06 Sanyo Electric Co
JPS615282A (en) * 1984-06-19 1986-01-11 日本電信電話株式会社 Image display system
JPS6373292A (en) * 1986-09-17 1988-04-02 三菱電機株式会社 Character display device

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