JPS6135571B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for instructing each device of an electronic computer system to perform various operations, displays, etc.

Each device used in a computer system has become capable of commanding various operations, displays, etc. of the device in the form of commands, and users can combine (program) the given commands in order. ) Each device is operated.

The instructions provided in each device are made up of an operation section indicating functional elements such as operation and display, and an operand section indicating detailed rules for executing the functional elements.

The following will explain the "instruction designation" related to the display device, which is the impetus for the present invention.
The display device issues a combination of various commands, such as a command to display a line segment on its screen and a command to specify brightness. For example, if you want to display a figure, use one command to give one vector, that is, the straight line segment forming each figure, in three variables: the starting point on the screen, the x-axis direction component, and the y-axis direction component. . Therefore, for a curved line, it is necessary to create a command as a series of short straight lines and give it to the display device.

In the above case, when a command to display a line segment is specified in the operation part, the starting point coordinates, x-axis direction component, and y-axis direction component of the line segment must be given in the operand part. When an instruction specifying brightness is specified in the yellow part, the actual brightness value must be given in the operand part. That is, in the past, an instruction was created by pairing an operation section and an operand section, and a command was issued in units of one instruction. In a display device, commands were grouped on a screen-by-screen basis, and an operation section and an operand section were created for each screen to be displayed. In particular, when there is a request to display a complex drawing such as enlarging, reducing, or rotating the screen displayed on a display device, each command is created each time and a group of commands for displaying one screen is issued. There were some flaws that I had to deal with. The purpose of the present invention is to overcome the above-mentioned drawbacks, and the purpose is to provide a system for an electronic computer system having various instructions consisting of an operation section and an operand section.
An operation group that extracts only the operation part of one or more instructions, and each operand corresponding to each operation part in the operation group.
This is accomplished by separately commanding a group of operands.

This invention will be explained in detail below with reference to the drawings.

The figure is a configuration diagram of an embodiment of a display device based on the present invention.

In the figure, 1 is an input/output control device, 2 is a display device, 21 is an interface control circuit, 2
2 is an instruction storage means, 23 is an operation group and operand group composition means, 24 is an operand processing circuit, 25 is a display circuit, and 26 is a cathode ray tube (CRT). Further, 22a is an operation storage section, 22b is an operand storage section, 23a is a distribution means, 23b is an operation write circuit, 23
c is an operand write circuit.

When a command is issued from the input/output control device 1 to the display device 2, first the interface control circuit 2
1 receives the command. In the conventional case of forming a received operation and operand pair, the interface control circuit 21 directly stores the received instruction in the operation section 22a and operand section 22b in the instruction storage means 22 constituted by a refresh memory or the like. Write the operation and operand for each. Based on the contents of the command storage means 22, the display means 25 draws a diagram on a cathode ray tube (CRT) 26.

If the instruction issued from the input device 1 to the display device 2 is an operation group or operand group of two or more instructions, the interface control circuit 21 assigns those operation groups to the distribution means 23a in the composition means 23. , or send a group of operands. If the received command is an operation group, the distribution means 23a sends the operation write circuit 23b to the operation write circuit 23b.
Then, the operation group is written into the operation section 22a in the instruction storage means 22. At this time, the operation writing circuit 23b writes the newly specified operation group in correspondence with the operand section 22b of the instruction currently being displayed.
Further, if the instruction received by the distributing means 23a is an operand group, the operand writing circuit 23c writes the operand group into the operand section 22b in the instruction storage means 22. At this time, the operand write circuit 23
c is the operation section 22 of the currently displayed instruction.
A newly specified operand group is written in correspondence with a. The operand processing circuit 24 shown in the figure is a circuit that reads out the operands of the currently displayed instruction and changes or corrects each operand value for a series of operands based on the commands from the interface control circuit 21. , once the changes or modifications to a set of operands have been completed,
The operand write circuit 23c writes the value into the operand section 22b in the instruction storage means 22 again.

Although the above description has been made using a display device as an example, the present invention is not limited to this, and can be applied to specifying instructions for various devices used in electronic computer systems.

The operand processing circuit described above is used in a display device with a built-in small computer, etc.
It is possible to substitute that small computer,
Rather than creating a somewhat complex operand processing circuit, using a small, general-purpose computer provides more flexibility in changing processing.

As explained above, the present invention allows an instruction, which conventionally always consists of one operation and one operand, to be divided into an operation group and an operand group for two or more instructions. This has the effect of reducing the amount of processing for creating commands, reducing the amount of data of commands sent as commands, and reducing the time required for processing for creating such commands, transferring data, etc.

Particularly in display devices, there are often requests to continuously display enlarged/reduced images, parallel translations, rotations, etc. of the currently displayed figure. , it is sufficient to leave the operation groups as they are and change the values of the operand groups corresponding to each operation by a certain amount, and the gist of the present invention can be fully utilized.

[Brief explanation of the drawing]

The figure is a configuration diagram of an embodiment of a display device based on the present invention. In the figure, 1 is an input/output control device, 2 is a display device, 21 is an interface control circuit, 22 is an instruction storage means, 23 is a synthesis means, 24 is an operand processing circuit, 25 is a display circuit, and 26 is a cathode ray tube (CRT). be. 〓〓〓〓

Claims (1)

[Claims] 1. In a display device of a computer system, a display command is divided into an operation section for instructing the function and operation of the display device, and an operand section for providing data necessary for the function and operation.
or a plurality of operation parts and one or more operand parts can be independently and separately instructed;
A display command designation method, characterized in that an instruction can be constructed by combining different operand parts for the one or more operation parts.