JPS63120330A - Screen control system - Google Patents

Abstract

PURPOSE:To reduce the load of a main processor and to control the screen display with high efficiency by giving accesses to a multi-window control table and a character buffer from an exclusive processor and requesting a display indication to an exclusive LSI. CONSTITUTION:An application program is carried out by a main processor 1 of this control system and at the same time the displays are performed via a display device 4 as necessary. In this case, the display modes, etc., are described into a multi-window control table 8 of a main memory 2 together with display characters, etc., described to a character buffer 9 respectively. A request is given to an exclusive processor 10 for display by interruption. Thus the processor 10 decides a screen reforming interruption or a character display interruption. Then the calculation of display position, the calculation of inter- window overlap control, etc., are carried out with reference to the contents of the table 8 and the buffer 9. Then a request is given to an exclusive LSI 3 for display in accordance with contents of said calculations.

Description

[Detailed Description of the Invention] [Summary] To solve the problem that, in a screen control method for displaying processing results on a display device, the load on the main processor increases due to multi-window display processing and the display speed decreases. for.

A dedicated Brosenozu is used to perform processing such as screen position calculation and overlap control calculation when displaying multiple windows.
We are trying to improve overall processing performance.

[Industrial application field]

The present invention relates to a single screen control method 1, particularly to a screen control method for performing multi-window display.

[Conventional technology]

In recent emotional axis processing devices. Display devices are often used to show processing results to humans. As the display device π, bit map displays, which are capable of displaying figures and the like, have come to be used instead of conventional ones that display characters. Since the bit map display allows a variety of representation formats, it is extremely demanding, increasing the load on the processor and slowing down the processing speed. Furthermore, recently, from the viewpoint of man-machine interface, a multi-window display format has appeared in which a plurality of processing results are displayed on one screen, and the problem has become even more serious.

FIG. 3 shows a conventional configuration. In FIG. 1, numeral 1 is a main processor, 2 is a main memory, and 3 is a dedicated I.

Sl, 4 is a display device, 5 is a bit map frame memory, 6 is a display unit, and 7 is a program 18.
In the multi-window control table, 9 represents a character buffer.

The main processor 1 executes the program 7 and writes information such as how windows are to be displayed on the bit map display device 4 in a multi-window control table 8 as necessary. LSI3
Request display.

In the case shown in FIG. 3, the main processor 1 calculates the display position of each window and the overlap control between windows, and then the dedicated LS
I3 is requested to display it.

The dedicated LSI 3 writes image data on the bit map frame memory 5 by referring to the contents of the one-character buffer 9 based on the request. As a result, the bit map display device 4 displays on the 1 display section 6.

[Problem that the invention seeks to solve]

In the case of the configuration shown in FIG. 3, especially multi-window display is performed, the load on the main processor 1 increases, and the display speed tends to decrease.

[Means for solving problems]

The present invention solves the above-mentioned problems, including calculation of the display position of each window and calculation of overlap control between windows.

A dedicated processor is provided, and the dedicated processor accesses and executes the multi-window control table on the main storage device.

FIG. 1 shows a basic configuration diagram of the present invention. In the figure, 1 is the main processor, 2 is the main memory, and 3 is dedicated! , 51
．． 4 is a bit map display device; 5 is a bit map frame memory;

6 is a display unit, 7 is a program, 8 is a multi-window control table, 9 is a character buffer, and 10 is a dedicated processor provided in the present invention.

In the case shown in FIG. 1, the main processor 1 stores information on the multi-window control table 8 and character buffer 9.
After describing how the window is to be displayed, etc., a single display request is notified to the dedicated processor 10 by an interrupt.

In response to the display request, the dedicated processor 10 accesses the multi-window control table 8, etc., performs window display position calculations, inter-window overlap control calculations, etc.9, specifies the content to be displayed, and sends it to the dedicated LS.
I3 will be notified.

[Effect]

The main processor 1 is executing an application program, as needed.

The display is made for the device 1, 2 and 4. In performing this display, the mode to be displayed is written in the multi-window control table 8, the characters to be displayed are written in the character buffer 9, and a display request is made to the dedicated processor 10 by one interrupt. Of course, when the operator operates, for example, a mouse, the main task is activated, and the main processor 1 updates the contents of the multi-window control table 8 and character buffer 9.

In the dedicated processor 10, in response to the display request by the above-mentioned interrupt, either (i) double-sided reorganization interrupt force or (ii
) Determine whether it is a character display request interrupt.

Then, by referring to the contents of the child table 8 character buffer 9 for the multi-window 1 fifJ aD, 7 display position calculations, overlap control calculations between windows, etc. are performed, and the content that should be displayed 1 for the dedicated LSI 3 is calculated. As soon as a 3-display request is made, the dedicated LSI 3 displays information regarding the specified display content.

The image data is expanded into the bit map frame memory 5 by DMA with reference to the contents of the character buffer 9 and the like.

〔Example〕

FIGS. 2(A), 2(B), and 2(C) constitute one drawing as a whole and show the configuration of an embodiment of the present invention.

FIG. 2(A) Illustrated symbols 1.2. 8. 9. 10 corresponds to Figure 1, 7-1 is the main task, 7-2 and 7
-3 represents an application program, 7 to 4 a common display routine, 7-5 an interrupt process, and 11 a mouse.

Main processor 1 executes application programs. During this time, the application program 7-2, for example, requests processing from the common routine for 1 display 7-4 as shown in 1 in the figure, as required. Regarding one display, the application program 7-2 prepares a multi-window control table 8 and a character buffer 9 for each window. or update it.

The common routine 7-4 for display 1 issues a display request to the dedicated processor 10 by interrupting it as shown in the figure (2). Furthermore, when the operator issues an instruction to the screen using the mouse 11, the main task 7-1 starts, updates the multi-window control table 8 as shown in Figure 9 (■), and interrupts the dedicated processor 10 as shown in Figure 1 (■). Make a display request by.

When the dedicated processor 10 receives a notification of the end of the process for which 1 display has been performed by an interrupt as shown in the figure ■, the 1 interrupt processes 7 to 5 are activated, and the 1 display indicates that the process has been completed as shown in the figure 9 ■ and ■. Routine 7-4 or main task?
Notify -1.

The flowchart shown in FIG. 2(B) represents the processing in the dedicated processor 10. When a processing request is received by an interrupt as shown in the above figures (■) and (■), it is determined whether it is a (+) screen reorganization interrupt or (ii) a character display value M interrupt. 5. In the former case, as shown in the figure ■, and in the latter case, as shown in the figure [phase], refer to the multi-window control table 8. 2. Specify the location and content to be displayed, and Notify the dedicated LSI 3 as follows. and.

The dedicated processor 10 notifies the main processor 1 of the completion of processing by means of an interrupt, as shown in FIG.

FIG. 2(C) shows processing on the dedicated LSI side. Dedicated LSr3 receives 1 display request 0 or @.

Illustration 0. Refer to the one-character buffer 9 as shown in (2) and write it in the bit map frame 5 in the form of image data as shown in (2).

〔Effect of the invention〕

As described above, according to the present invention, the two dedicated processors access the multi-window control table and character buffer, specify the display contents to the dedicated LSI, and issue a display request.

For this purpose, the main processor's 9 loads are connected to the low frequency range, and the main processor, dedicated bromo, 2s, and dedicated LS
It becomes possible to appropriately share processing with I and perform display control efficiently as a whole.

[Brief explanation of the drawing]

Figure 1 is the principle configuration diagram of the present invention, Figure 2 (A) (B)
(C) shows an embodiment configuration that constitutes one drawing as a whole, and FIG. 3 shows a conventional configuration. In the figure, 1 is the main processor, 2 is the main memory, 3 is the dedicated LSI, 4 is the display device, 5 is the bit map frame memory, 8 is the multi-window control table, and 9 is the character buffer. There is. Patent applicant: Banafacom Co., Ltd. (1 other person) Representative patent attorney: Hiroshi Mori (1 other person) [2nd fJ (cl.
f month [20th] (66th month)
1q Real goto bottle goisu [1 [] Gei zc2] (B) Tea 2 figure (C)

Claims (1)

[Claims] Display device (4) and the display device (4)
a bit map frame memory (5) that holds information corresponding to the display screen displayed on the screen, and a dedicated LSI (3) that writes image data to the bit map frame memory (5). , a main storage device (2) that stores a multi-window control table (8) and a character buffer (9) corresponding to the multi-window displayed on the display device (4); Main processor (1) that updates the window control table (8)
In a data processing device that performs multi-window display on the display device (4), in response to a display request interrupt from the main processor (1), the multi-window control table (8)
and the content of the character buffer (9), and the display device (4) for the dedicated LSI (3).
The dedicated LSI (3) has a dedicated processor (10) that specifies the display content to be displayed and requests the display.
The apparatus is characterized in that it is configured to refer to the contents of the character buffer (9) and write image data to the bit map frame memory (5) in response to a display request from the character buffer (9). Screen control method.