JPS6339294U

JPS6339294U -

Info

Publication number: JPS6339294U
Application number: JP13261686U
Authority: JP
Priority date: 1986-08-29
Filing date: 1986-08-29
Publication date: 1988-03-14

Description

[Brief explanation of the drawing]

第１図は、この考案のカラーＣＲＴ表示制御装
置の要部構成について、その一実施例を示すブロ
ツク図、第２図は、この考案のカラーＣＲＴ表示
制御装置において、合成表示時における表示制御
動作を説明するためのフローチヤート、第３図は
、従来から使用されている、複数組のカラー画像
情報を格納するためのビデオメモリ群を有するカ
ラーＣＲＴ表示装置が接続されたデータ処理シス
テムについて、その要部構成の一例を示す機能ブ
ロツク図、第４図は、従来のカラーＣＲＴにおけ
る画像情報の重ね合せ表示について、その一表示
例を示す図、第５図は、この考案のカラーＣＲＴ
表示制御装置による画像情報の重ね合せ表示の場
合について、その一表示例を示す図。図面において、１はキーボード、２はキーボー
ド制御部、３はカラーＣＲＴデイスプレイユニツ
ト、４はＣＲＴコントローラ、５はＶＲＡＭで、
５Ｇはそのグラフイツクス画面用メモリ群、５Ｃ
はキヤラクタ画面用メモリ群、６はプリンタ、７
はプリンタ制御部、８はＦＤＤユニツト、９はＦ
ＤＤ制御部、１０はＣＰＵ、１１はＲＯＭ、１２
はＲＡＭ、１３はシステムバス、１４は優先処理
回路、１５はオア処理回路、１６はキヤラクタ画
面パターン、１７はグラフイツクス画面パターン
。 FIG. 1 is a block diagram showing an embodiment of the main structure of the color CRT display control device of this invention, and FIG. 2 shows the display control operation at the time of composite display in the color CRT display control device of this invention. FIG. 3 is a flowchart for explaining a conventional data processing system connected to a color CRT display device having a video memory group for storing a plurality of sets of color image information. FIG. 4 is a functional block diagram showing an example of the main configuration. FIG. 4 is a diagram showing an example of superimposed display of image information on a conventional color CRT. FIG.
FIG. 3 is a diagram illustrating an example of a display in which image information is displayed in a superimposed manner by a display control device. In the drawing, 1 is a keyboard, 2 is a keyboard control unit, 3 is a color CRT display unit, 4 is a CRT controller, 5 is a VRAM,
5G is the graphics screen memory group, 5C
is a character screen memory group, 6 is a printer, and 7 is a memory group for character screens.
is the printer control unit, 8 is the FDD unit, and 9 is the F
DD control unit, 10 is CPU, 11 is ROM, 12
1 is a RAM, 13 is a system bus, 14 is a priority processing circuit, 15 is an OR processing circuit, 16 is a character screen pattern, and 17 is a graphics screen pattern.

Claims

[Scope of utility model registration request]

A color CRT display control device for a data processing system comprising an input device, a display device, a memory, and a central processing unit for controlling each of these parts, the device comprising: a video memory group storing a plurality of sets of color image information; , an OR processing means for synthesizing image information processed by respective independent control systems, and a color CRT display device having a function of superimposing and displaying a plurality of sets of color image information, wherein the plurality of sets of video memories between the group and the OR processing means,
A color CRT display control device comprising a priority processing means for prohibiting the output of image information having a lower priority when image information having a preset higher priority exists. .