JPS62247422A - Automatic recognizing system for loading device of program store medium - Google Patents

Abstract

PURPOSE:To enable a user to load a program store medium to an optional device with no instruction of a device number nor correction of a program, by providing a tentative device number setting means, a tentative device number store area and a device number recognizing means. CONSTITUTION:This system comprises a tentative device number setting means 1, a tentative device number store area 2, a device number recognizing means 3 and an identifier 4. If a program store medium 5 is loaded to a floppy disk device of #10, the identifier 4 is detected out of the floppy disk device when the tentative device number is updated between 0 and 10 and set at 10. Thus it is recognized that the floppy disk device of #10 is defined as a device to load the medium 5. Thus a loading request is given to the floppy disk device of #10 for a program B52.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic recognition method for a program storage medium loading device, and in particular to a program used when calling a program from another program and loading it into the main memory in a computer system. The present invention relates to an automatic recognition method for a storage medium mounting device.

[Conventional technology]

Conventionally, when requesting loading of the next program to be executed on an external storage medium from a program loaded in main memory, it is necessary to specify from the outside the device number in which the medium in which the program is stored is installed. One of two methods was used: the medium containing the corresponding program was loaded into the device specified by the program.

[Problem that the invention seeks to solve]

In the conventional program loading method described above, the alpha body that stores the program to be loaded is protected and the device number cannot be recognized from the program. The disadvantage of loading is that the user must give instructions or modify the program.

In view of the above-mentioned points, an object of the present invention is to provide a program storage medium mounting device that automatically recognizes a device in which a medium storing a program to be loaded is mounted without requiring instructions or modification of the program by the user. The objective is to provide an automatic recognition method.

[Means for solving problems]

The automatic recognition method of the program storage medium loading device of the present invention is activated when another program is called from a program and recognizes the device number in which the program storage medium in which the other program is stored is loaded. a temporary device number setting means for setting a board device number used for the temporary device number setting means; a temporary device number storage area in which the board device number set by the temporary device number setting device is stored; An identifier indicating that the medium installed in the device having the board device number is read as a program storage medium in which the other program is stored, and when the identifier is detected, the board device device number recognition means for recognizing that the number is a device number in which the program storage medium is actually installed and requesting the temporary device number setting means to update the board device number when the identifier is not detected; has.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The automatic recognition system of the program storage medium loading device of this embodiment includes a temporary device number setting means 1, a temporary device number storage area 2
, device number recognition means 3 and an identifier 4.

FIG. 2 is a diagram showing the contents of a program storage medium 5 (for example, a floppy disk) in which a plurality of programs are stored.
1. Program B52 and identifier 4 (for example, a file with a unique file name) are stored.0 For example, program A51 is a program that is initially loaded, and program B52 is a program that is internally called from program A51. .

Program A51 uses an interpreter other than machine language or assembler (such as BASIC) or compiler (COBOL, F
The program is written in a high-level language such as ORTRAN, etc.), and it is not possible to know from within the program itself which device the program storage medium 5 is loaded from.

Next, the operation of the automatic recognition system of the program storage medium loading device of this embodiment configured as described above will be explained.

When the program A51 internally calls the program B52 stored in the same program storage medium 5, the program A51 cannot know from which device the program storage medium 5 is loaded into the main memory. Therefore, in order to recognize the device number in which the program storage medium 5 in which the program A 511 and the program B 52 are stored is installed, the temporary device number setting means 1 is activated, and O is set as the initial value of the board device number. Set it in number storage area 2.

Next, the temporary device number setting means 1 actually executes the program A5.
1 and the program storage medium 5 in which the program B52 is stored, issue a read request for the identifier 4 to the device with the device number set in the temporary device number storage area 2. do.

If the program storage medium 5 is not installed in the device requested for reading, or if the identifier 4 is not detected even if it is installed, the device number stored in the temporary device number storage area 2 is actually the program A51 and Since this is not the number of the device in which the program storage medium 5 in which the program B 52 is stored is installed, a request is made to the temporary device number setting means 1 to update the board device number. The temporary device number setting means 1 adds 1 to the board device number to update the board device number and sets it in the temporary device number storage area 2, and thereafter uses the same procedure until the identifier 4 is detected. will be updated.

When the identifier 4 is detected from the medium attached to the device that requested reading, the device number recognition means 3 determines whether the device number stored in the temporary device number storage area 2 at that time is actually the program A51 and the program B52. It recognizes that this is the device number of the device into which the program storage medium 5 that stores program B is installed, and the program B is
52 load request is made.

For example, if the program storage medium 5 is installed in the floppy disk device with device number 10, when the temporary device number is updated from O to 10 and reaches 10, the floppy disk device with device number 10 is loaded. Since the identifier 4 is detected, the floppy disk device with the device number 10 is identified as the device into which the program storage medium 5 is installed. Therefore, a request is made to load the program B52 to the floppy disk device with device number 10.

Note that in the above embodiment, the calling program 5
Although it is assumed that 1A and the called program B52 are stored in the same program storage medium 5, it is not necessary that the calling program and the called program are stored in the same program storage medium. Needless to say.

〔Effect of the invention〕

As explained above, the present invention provides a temporary device number setting means, a temporary device number storage area, and a device number recognition means to call another program stored in a program storage medium from a program loaded into the main memory. The device in which the program storage medium is installed can be automatically recognized when the program storage medium is installed, and the program storage medium can be installed in any device without the user specifying the device number or modifying the program. There is an effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention; FIG. 2 is a diagram showing the contents of the program storage medium. In the figure, 1...Temporary device number setting means, 2...Temporary device number storage area, 3...device number recognition means, 4...Identifier, 5...program storage medium, 51...Program A1 52...Program B.

Claims (1)

[Claims] A temporary device number that is activated when another program is called from a program and is used to recognize the device number in which the program storage medium in which the other program is stored is installed. a temporary device number setting means to be set; a temporary device number storage area in which the temporary device number set by the temporary device number setting means is stored; and a device with a temporary device number stored in this temporary device number storage area. An identifier indicating that the medium installed in the medium is a program storage medium in which the other program is stored is read, and when the identifier is detected, the temporary device number is actually determined by the program storage medium. a device number recognition unit that recognizes that the device number is a device number in which the temporary device number is installed, and requests the temporary device number setting device to update the temporary device number when the identifier is not detected. Automatic recognition method for storage media loading device.