JPS56153443A - Page boundary display system - Google Patents

Page boundary display system

Info

Publication number
JPS56153443A
JPS56153443A JP5680780A JP5680780A JPS56153443A JP S56153443 A JPS56153443 A JP S56153443A JP 5680780 A JP5680780 A JP 5680780A JP 5680780 A JP5680780 A JP 5680780A JP S56153443 A JPS56153443 A JP S56153443A
Authority
JP
Japan
Prior art keywords
counter
line
character
raster
output
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
JP5680780A
Other languages
Japanese (ja)
Inventor
Akira Sato
Shinichi Kubota
Toshihiro Miyamoto
Hisao Murataka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5680780A priority Critical patent/JPS56153443A/en
Publication of JPS56153443A publication Critical patent/JPS56153443A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce a burden of a program and improve the use efficiency of a memory and the use efficiency of a screen by performing the display controlling of a page boundary line with a hardware.
CONSTITUTION: The output clock CK from an oscillator 10 is raster scan by a dot counter 11, whic is self-reset by a count value 17 to count a character area of 15 dots and an inter-character space of 2 dots as one unit, and outputs an output pulse P1 by assuming that 1 raster has advanced by 1 character. Further, the clock is counted by a character counter 12 and a raster counter 13, which output the count values in which 1 raster scan is completed and scan for 1 line is completed by the pulses P2 and P3. The pulse P4 indicating the scan completion of one screen is outputted by a line counter 14, and the line number by a page boundary register 15 and the line number 20 by the instruction from the counter 14 are compared in a comparator 17. Adopting the logic of the coincided output compared as above and the preset count value of the counter 13, the boundary number is transmitted to a display device.
COPYRIGHT: (C)1981,JPO&Japio
JP5680780A 1980-04-28 1980-04-28 Page boundary display system Pending JPS56153443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5680780A JPS56153443A (en) 1980-04-28 1980-04-28 Page boundary display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5680780A JPS56153443A (en) 1980-04-28 1980-04-28 Page boundary display system

Publications (1)

Publication Number Publication Date
JPS56153443A true JPS56153443A (en) 1981-11-27

Family

ID=13037658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5680780A Pending JPS56153443A (en) 1980-04-28 1980-04-28 Page boundary display system

Country Status (1)

Country Link
JP (1) JPS56153443A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60110030A (en) * 1983-11-19 1985-06-15 Canon Inc Character processor
JPS60189064A (en) * 1984-03-07 1985-09-26 Canon Inc Character processor
JPH01116870A (en) * 1987-10-30 1989-05-09 Pfu Ltd Display control system for lower end overflow character string in character editing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60110030A (en) * 1983-11-19 1985-06-15 Canon Inc Character processor
JPH0522933B2 (en) * 1983-11-19 1993-03-31 Canon Kk
JPS60189064A (en) * 1984-03-07 1985-09-26 Canon Inc Character processor
JPH0534706B2 (en) * 1984-03-07 1993-05-24 Canon Kk
JPH01116870A (en) * 1987-10-30 1989-05-09 Pfu Ltd Display control system for lower end overflow character string in character editing
JPH0544057B2 (en) * 1987-10-30 1993-07-05 Pfu Ltd

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