JPS6438788A - Display controller - Google Patents

Display controller

Info

Publication number
JPS6438788A
JPS6438788A JP62194511A JP19451187A JPS6438788A JP S6438788 A JPS6438788 A JP S6438788A JP 62194511 A JP62194511 A JP 62194511A JP 19451187 A JP19451187 A JP 19451187A JP S6438788 A JPS6438788 A JP S6438788A
Authority
JP
Japan
Prior art keywords
display
display character
storage memory
character
address storage
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
JP62194511A
Other languages
Japanese (ja)
Inventor
Takeo Nakazawa
Hajime Takemura
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.)
NEC Corp
NEC Solution Innovators Ltd
Original Assignee
NEC Corp
NEC Solution Innovators 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 NEC Corp, NEC Solution Innovators Ltd filed Critical NEC Corp
Priority to JP62194511A priority Critical patent/JPS6438788A/en
Publication of JPS6438788A publication Critical patent/JPS6438788A/en
Pending legal-status Critical Current

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  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE: To increase the display speed of a display device by storing addresses corresponding to display character codes in a display character address storage memory. CONSTITUTION: A display character address storage memory 15 where addresses converted by a code address computing element 12 are stored, a display controller 17 which takes out display character addresses corresponding to display character codes from the display character address storage memory 15 and takes out display character bit patterns corresponding to display character addresses from a character generator 13 to store them in a refresh memory 21, and a display device 22 on which display character bit patterns stored in the refresh memory 21 are displayed are provided. If addresses corresponding to display character codes are preliminarily stored in the display character address storage memory 15, it is unnecessary to take out display character codes from the display character code storage memory again even at the time of switching operation of plural pictures and scroll operation. Thus, the display speed of the display device is increased.
JP62194511A 1987-08-05 1987-08-05 Display controller Pending JPS6438788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62194511A JPS6438788A (en) 1987-08-05 1987-08-05 Display controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62194511A JPS6438788A (en) 1987-08-05 1987-08-05 Display controller

Publications (1)

Publication Number Publication Date
JPS6438788A true JPS6438788A (en) 1989-02-09

Family

ID=16325745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62194511A Pending JPS6438788A (en) 1987-08-05 1987-08-05 Display controller

Country Status (1)

Country Link
JP (1) JPS6438788A (en)

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