JPS58134361A - Release system for reverse time display of graphic processor - Google Patents

Abstract

PURPOSE:To read out the reverse instructions from the latest one and subsequent ly on the basis of a rseleasing instruction and to perform the release independently, by providing a storing part to a graphic processor which is coupled with other computers to produce and store the reverse instruction by which a reverse operation is performed after interpreting the fed signal. CONSTITUTION:An instruction given from another computer is modulated demodulated 1 and fed to an input buffer 2, and the output of the buffer 2 is decoded 3 to generate the graphic information. This graphic information is fed to a display memory 5 and displayed 7 via a display control part 6. While the output of the decoder 3 is fed to a reverse instruction generator 4. Thus a reverse instruction is generated and released at a storage device 8. When a release command is supplied, it is decoded by the decoder 3. Then the reverse instructions are fetched out of the device 8 from the latest one and displayed on a screen via the memory 5. In such a way, the load of a computer itself is reduced, and the release is possible with a graphic processor only.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a reverse time display recovery method in a graphic processing device, particularly in a graphic processing device 11 that operates in conjunction with another computer system, in which display is restored independently by a recovery command from the computer system. Part 4 relates to a reverse display recovery method that makes it possible.

Conventionally, a 16-shape device was used to display a
When creating shapes while displaying them on m, it is impossible to recover from incorrect 9 corrections to what is displayed.
Yes, it is necessary to execute the modification command again, and it takes a lot of effort. In addition, if there is a possibility that an error correction is likely to be made, the display information will be saved. Even in the method of using the data and modifying it again, the same number of inputs was still required. It had the disadvantage of increasing the total dialogue time due to Jin's method.

In order to eliminate the above-mentioned drawbacks, this Ijll internally generates the inverse instructions of the instructions sent from other computer systems, stores the inverse instructions sequentially, and uses the recovery instructions from other computer systems to To provide a reverse time display restoration method in a graphic processing device that makes it possible to return to any past display state by extracting and executing the stored reverse commands starting from the latest one.

According to the present invention, there is a display main part that converts figures into electrical signals and displays them, a communication control part that controls communication with the fine needle calculator system, and a communication control part that controls communication with the fine needle calculator system; a graphic display control section that interprets the signal and displays it on the display device section; and a storage section that stores the interpretation result of the signal, stores the reverse instruction in 100 million copies, and A reverse time display restoration method in a graphic processing device is provided in which the reverse command is executed from the latest Q in response to a signal containing a restoration command from a computer system, and the previous graphic display state is restored in the reverse time direction. can get.

The present invention will be explained below with reference to the drawings. FIG. 1 is a diagram of one embodiment of the present invention. In the figure, l is a modem device for receiving commands from the fine needle calculator system;
2 is an input buffer that temporarily stores a group of instructions from #-t31t and has instructions waiting for interpretation; 3 is an instruction decoder that interprets the instructions stored in input buffer 2 and generates graphic information; 4 is an instruction decoder that interprets the instructions stored in input buffer 2 and generates graphic information; A reverse command generating device generates a reverse command of a command, a display memory having figure information necessary for rounding to display 5 squares, 6 a display control device, and 7 a display section.

tis is a recovery instruction storage device for storing reverse instructions, 9 is a mode register having a graphic display mode, and 10 is a sequence control device for controlling the input buffer sequence.

Table 1 (Continued) □-1 Table 1 shows an example of a correspondence table between reception commands and their reverse commands in the system of FIG. 1 as shown in Table 1
A plurality of reverse instructions can be provided for an instruction set. Table 2 shows an example of the occurrence of a reverse instruction in the case of corresponding reverse instruction (a) in Table 1.

By executing the commands shown on the right side of Table 2 on the screen of Table 2, FIG. 2(A), the screen of FIG. 2(B) is obtained. Here, the reverse commands shown in the second table are listed from the latest to 1. In other words, when executed from the bottom of the table, the screen shown in FIG. 2(C) can be obtained and the screen shown in FIG. 2(A) can be restored. Furthermore, v2 Figure 2-
The reverse order operation procedure in the above example is carried out using the system shown in FIG. 1. Now the second
1! ! The MODE command in the first line of is stored in the ll51 figure cover 7a2 via the post-modification device [1]. The instruction decoder interprets the MODE command, executes a predetermined MuDE command operation, and then sends the interpretation result to the reverse instruction generation &*4. In step 4, a reverse instruction is generated based on the instruction and reverse instruction correspondence table shown in Table 2. When the MODE command is issued, mode 0 is stored in the mode register 9.

The reverse instruction is stored in the backward-use reverse instruction storage device 8. Next L
When the pigeonhole receives the INE command, a reverse command is generated and stored in the storage device 8, similar to the process described above. The same applies below.

Next, when a recovery command is input, the instruction recorder 3 interprets the instruction and then performs processing to retrieve the reverse instruction from the storage device *S. The increase is performed in order from the latest to the previous 4.

Each retrieved reverse instruction is processed in the same way as the input instruction,
The command recorder 3 interprets the command and displays it on the screen via the display memory 5. In the example of FIG. 2, the most recent instruction MODEO is first executed. By executing this up to MODEO, which is the oldest reverse instruction, the second
The screen shown in Figure (C) is obtained. In the recovery process,
The restoration reverse command is not sent to the reverse command generation device 4, and no reverse command of the reverse command is generated.

Regarding the 112th reverse instruction (b), the reverse instruction (
Similar to a), recovery is possible with the system of the embodiment shown in FIG.

FIG. 3 shows an embodiment of the restoration method of the present invention for a graphic processing device in which several graphics can be collectively moved and enlarged in units called segments.

In FIG. 3, 13 is a memory that stores segments, and is a segment control unit that loads, deletes, and modifies segments in the tzU memory 13, and references segment information. Other symbols are number 11! Shows the same part as I. In this embodiment as well, for basic processing commands that do not handle segments, four command and reverse command correspondence tables can be created, the same as in the embodiment shown in FIG. 1. An example command is shown.

As shown in the reverse instruction of 8EG) 5EL of 3rd ¥R, it is necessary to extract the segment definition information from the segment control unit and use it as partial data of the reverse instruction.

Therefore, in this embodiment, data is transferred from the segment control section 13 to the reverse instruction generation section 4, which is different from the embodiment shown in FIG.

In order to explain the present invention, a non-intelligent graphic processing device has been used as an embodiment. However, it is clear that the present invention is not limited to this, but can also be applied to the intelligent graphic processing whale 11 which can temporarily control the display independently of the fine needle calculator system as a graphic processing device. In addition, in the diagrams illustrating the embodiments, the storage device for storing the reverse instruction may be a magnetic disk device, a CCD device, etc. as long as it is a device that can simply store and release data.
I'm not saying it's okay if a memory device falls over.

- As stated above, according to the present invention, there is provided a computer system connected to a graphic processing device that allows the device to restore the display state at any time in the reverse time direction. The load is reduced, and the above function can be realized at a much lower cost than that which can be realized by adding a simple device to a conventional graphic processing device.

[Brief explanation of drawings]

Figure 1 is a professional configuration diagram showing one embodiment of the present invention;
The figure shows a reverse instruction sequence to an instruction sequence and an example of the operation of each sequence, and FIG. WA3 is a block diagram showing another embodiment of the present invention. l...Modulation/demodulation device, 2...Input buffer, 3...Instruction decoder, 4...Reverse instruction generation device, 5...Display Memo 1 halo・
...Display control section, 7...Display section, 8...
... Reverse instruction storage section, 9 ... Mode register, 10 ... Sequence control section, 12 ...
- Segment control unit, 13...Segment memory. Figure 1 ″

Claims (1)

[Claims] a display casing that converts figures into electrical signals and displays them; a communication control section that controls the communication side of the fine needle calculator stem; Interpret the received signal and read it in the evening! □ A graphic processing device consisting of a graphic display control unit for displaying on the display unit and a storage unit for storing the interpretation result of the signal is stored in the storage unit,
Reverse time in a graphic processing device that executes the reverse commands from the latest one according to a signal including a restoration command from the computer system and restores the previous one-form display state in the i time direction. Display recovery method.