JPS6134620A - Inputting method to computer - Google Patents

Abstract

PURPOSE:To extend and add an input device without changing an application program by storing together an input data used for an additional input device, too, in a buffer memory of an input device which is not added yet. CONSTITUTION:A keyboard memory 21 stores a code, too, by input information from other input device 4 than a keyboard 1. This memory 21 stores a corresponding code of after an input processing in accordance with an order in which it has occurred, irrespective of the keyboard 1 or the device 4. In such a case, the code obtained by a key board input processing 20 and the code obtained by an input processing 20A have no distinction related to a device, such as for the keyboard use or the device 4 use. Accordingly, neither a device number for showing the keyboard nor a device number for showing the device 4 is added to the code. In such a way, the input device can be extended and added without changing an application program.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method of inputting data to a calculator, which requires expansion and addition of input devices.

[Background of the invention]

FIG. 1 is an explanatory diagram of an input processing method using a keyboard, which is a typical example of an input device. The keyboard 1 has various keys, and when a worker presses a key, key information at the pressed point is input to the calculator.

The calculator (which may be a CPU) first performs keyboard input processing 20 based on key information using the operating system (O5) 2, obtains the corresponding code, and stores the code in the keyboard buffer memory (register) 21. Store.

On the other hand, the calculator has an application program (AP) 8 in addition to O5. The application program 8 reads the previously registered code from the buffer memory 20 and performs input processing 80 based on this code.

FIG. 2 shows the processing contents of the input processing 20 within O5.

First, the pressed key information is imported. Next, a code corresponding to this key is obtained and stored in the keyboard buffer 21.

FIG. 8 shows the processing contents of the input processing 30 within the AP. First, a code is extracted from the keyboard buffer 21. Next, processing corresponding to the code is performed.

Next, we will discuss the fourth example of adding an input device other than the keyboard.
As shown in the figure. Input device 4 indicates a newly added input device. A buffer memo 1j21A is added to each additional input device. O8 performs input processing (2) on the input information from the input device 4.
OA) to obtain a code and store the code in its own buffer memory 1J21A.

In addition to the input processing 30 for the keyboard, the AP has an input processing 80A for the additional input device. Therefore, in the AP, input from the keyboard 1 is processed by input processing 30, and input from input device 4 is processed by input processing 8.
Processing is performed using 0A.

In the conventional example shown in FIG. 4, O5 is generally set in advance so as to be compatible with several types of input devices.

Therefore, even if an input device is added, it is not necessarily necessary to make new settings.

However, since the AP is set for each input device, it is necessary to add a new input processing 80A and a new buffer memory 21A.

In such a computer system, each time an input device is added,
There is a problem that requires adding buffer memory and modifying the AP.

[Purpose of the invention]

An object of the present invention is to provide an input method to a calculator that does not require changing the AP even when input devices are expanded (added).

[Summary of the invention]

According to the present invention, input data for an additional input device is also stored in the buffer memory for the input device before the addition. This allows A to use the input data for the input device before addition.
From P, even input data from an input device other than the one before addition appears as if it were input data from the input device before addition.

Therefore, even if a plurality of input devices are connected to the calculator, it can be processed as if only the input device before addition is connected.

[Embodiments of the invention]

FIG. 5 shows an embodiment of the invention. In this embodiment, the keyboard buffer memory 21 also stores codes based on input information from input devices 4 other than the keyboard 1. The keyboard buffer memory 21 is a FIFO register, and stores corresponding codes after input processing, whether from the keyboard 1 or the input device 4, according to the order in which they occur.

Here, the code obtained by input processing 20 and input processing 2
There is no distinction between the code obtained by OA and the device, such as one for the keyboard or one for the input device 4. If the input information on the keyboard 1 or 1 is the number 8'', the code indicating the number 8 is the code output by the input processing 20.

Similarly, if the input information from the input device 4 is the number 8",
The code indicating 8 becomes the output code of input processing 2OA. Therefore, neither a device number indicating that it is a keyboard nor a device number indicating that it is an input device 4 is added to the code.

FIG. 6 shows the processing contents of input processing 2OA.

In the example AP, upon receiving a keyboard interrupt, the keyboard buffer memory 21 at that time is searched, the leading code (because it is a FIFO) is read out, and necessary input processing 80 is performed.

According to the embodiment, the AP side only needs to be aware of the keyboard buffer memory 21 and does not need to be aware of the input device 4.

Similarly, the input device 4 refers to an input plotter or typewriter. Further, the reason why the keyboard is used as the basis is that the keyboard is the most widely used input device, and other input devices may be used.

〔Effect of the invention〕

According to the present invention, input devices can be expanded and added without changing the application program.

[Brief explanation of the drawing]

Figures 1 to 4 are explanatory diagrams of conventional input processing methods;
The figure is an embodiment of the input processing method of the present invention, and FIG. 6 is a diagram showing an example of the process. 1...Keyboard, 2...O818...AP, 4
. . . Input device, 21 . . . Keyboard buffer memory (register).

Claims (1)

[Claims] 1. A first input device, a buffer memory for storing a code corresponding to input information from the first input device, and means for reading and inputting the code stored in the buffer memory. A calculator comprising: converting input information from a second input device added to the first input device into a code corresponding to the input information and storing it in the buffer memory; Now, there is an input method to a calculator which reads and processes codes stored in the buffer memory without distinguishing between a first input device and a second input device. 2. The input method according to claim 1, wherein the first input device is a keyboard.