JPH0527983A - Remote install processing system for dos program - Google Patents

Abstract

PURPOSE:To enable installation by simply storing a file without being especially conscious of a Fill Allocation Table (FAT) concerning the remote install processing system for a DOS program. CONSTITUTION:Concerning the remote install processing system for the DOS program to write the DOS program held in a program holding part 3 in a device operated by a DOS by a controller, a loader processing part 4 is equipped with a file describing part 4-1, a DOS control part 5 is equipped with a FAT control write processing part 5-1, and the DOS program held in the program holding part 3 is written in an operating program holding part 6 by the file describing part 4-1 and the FAT control write processing part 5-1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote installation processing method for a DOS program, and more particularly to a FAT (Fil).
(1) Allocation Table), which allows installation simply by storing the file.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a data processing device 102 using a DOS (disk operating system) as an OS is a floppy disk drive (FDD) 103 or a hard disk drive. A disk drive (HDD) 105 was needed.

That is, in an apparatus whose OS is DOS, a system FPD 101 is created on the personal computer 100 and the FPD 101 is directly used by the FDD 103, or this FPD is copied to the HDD 105 so that the boot ROM 106 is turned on when the power is turned on. The operation program is installed in the main memory 104 from the FPD or HDD by the program stored in the program, and is operated by this.

However, at the present time when the DOS is realized as a ROM, products using the DOS as the OS without using the FDD / HDD are being developed, and most of them store programs including applications in the RAM-DISK. There are many.

When remotely installing a filed processing program group operated by DOS to the RAM-DISK, as shown in FIG.
The processing programs A, B, ... Stored in 11 are transmitted to the device 120 via the controller (upper device) 110, received by the line control unit 121-1 of the loader unit 121, and sequentially transmitted to the RAM. Although it is stored in the DISK 122, it is necessary to provide the FAT control write processing unit 122 in the loader unit 121 at this time.

The FAT control write processing unit 122 is
Since the DOS file system handles files by the FAT control method, remote installation processing is performed based on the FAT control method. FA
The outline of the file system control by T will be briefly described with reference to FIG. FIG. 5A shows an example of a 12-bit FAT, and FIG. 5B shows an example of a file.

[0007] FAT is a map for indicating the storage location of files, and is a map for indicating in which cluster each file is arranged and in what order.

If the file cannot be stored in one cluster, the entry number of the next cluster in which the file is stored is written in the FAT entry, and the file is stored in one cluster.
When stored in clusters, the final cluster number shown in FIG. 5 (A) is entered.

As shown in FIG. 5A, "000H" indicates an empty cluster, "001H" indicates an unused code, "FF0 to FF6H" indicates reservation, and "FF7H".
Indicates a defective cluster, “FF8 to FFFH” indicates the last cluster in the file, and other values indicate a link to the next cluster in the file.

FIG. 5 (B) shows a file having three cluster entries and two links, in which clusters 2 to 4 are used.
Indicates that the file 1 text is stored in and the file 2 text is stored in clusters 5 to 7.

As shown in FIG. 4, RAM-DISK
The processing programs A, B, ... Stored in 122 are DO
It is controlled by S123 and executed by the operation unit 124.

[0012]

By the way, when the remote installation is performed by the method shown in FIG. 4, the loader section 121 needs to perform the following processing. Considering the hardware specifications of the disk, that is, the maximum capacity of 20 Mbytes and the physical sector size of 512 bytes,
Take control.

Storage location management of files from where to where in the physical sector location is performed. Set the file name, creation date, and size. Write to a physical sector based on file storage location management.

As described above, since the hardware specifications of the disk are taken into consideration, when the hardware specifications are changed, for example, the maximum capacity is changed from 20 Mbytes to 40 Mbytes, and the physical sector size is changed from 512 bytes to 1024 bytes. Then, it was necessary to change the program of the loader unit 121 accordingly.

Further, if there is a program mistake in managing the storage location of the file, there is a risk that the disk will be destroyed. Therefore, an object of the present invention is to provide a remote installation processing method for a DOS program that solves the above problems.

[0016]

Therefore, in the present invention, as shown in FIG. 1, the processing programs A, B, ...
When performing remote installation on the device 2 operated by S, the installation processing unit 4 is provided in this device 2 and the FAT control writing processing unit 5-1 is provided in the DOS control unit 5.

[0017]

Operation: When the power of the device 2 is turned on, the boot ROM 7 is set to D
The OS activation control unit 7-1 activates the DOS control unit 5. D
The OS controller 5 operates the ROM-DISK 3, and the loader 3
-0 controls the loader processing unit 4, and the file entry unit 4-1 controls the FA prepared in the DOS control unit 5.
The processing program (A) 6-0 and the processing program (B) 6 which are filed in the RAM-DISK 6 which is the operation program holding unit via the T control write processing unit 5-1.
─ Fill in 1 ...

This F prepared in the DOS control section 5
Since the AT control write processing unit 5-1 has a file write function based on the FAT control method, the FAT control write processing unit 122 as shown in FIG. 4 may be unnecessary. it can.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. 2 is an operation explanatory diagram when a processing program is executed. The device 2 uses DOS as an OS, such as a personal computer, P
An OS terminal, a card reader, etc.

The ROM-DISK 3 has a loader 3-0 for installing the loader processing unit 4. The loader processing unit 4 remotely installs the DOS processing program (A), processing program (B), ... Held in the program holding unit 10, and includes the line control unit 4-0 and the file writing unit 4 ─1.

The DOS control unit 5 uses the D
It is controlled by using the OS, and has a file control unit 5-0 having a FAT control write processing unit 5-1.

The RAM-DISK 6 is a DOS processing program (A) 6-0, a processing program (B) 6-1 ...
• Holds a processing program such as, and is located in, for example, the main memory. The boot ROM 7 activates the DOS control unit 5 when the power of the device 2 is turned on, and has a DOS activation unit 7-1 for this purpose.

The system button 8 is D when the power is on.
The OS control unit 5 is activated, and the system button 8 is simultaneously activated when the power is turned on to remotely install the DOS processing program (A), processing program (B) ... Held in the program holding unit 10. Pressing down activates the DOS controller 5, which causes the ROM
-DISK3 will be activated.

The program execution section (9) (see FIG. 2) is
The processing program (A), the processing program (B), ... Of the DOS stored in the RAM-DISK 6 are executed.

Next, D held in the program holding unit 10
OS processing program (A), processing program (B)
.. is remotely installed and the processing programs (A), (B) ... Are executed.

(1) If the operator turns on the power while pressing the system button 8, the boot ROM is turned on when the power is turned on.
7 operates to activate the DOS control section 5 by the DOS activation section 7-1. As a result, the DOS control unit 5 activates the ROM-DISK 3, and the loader 3-0 operates the loader processing unit 4.

(2) At this time, the IPL processing unit 1-0 of the controller 1, for example, first divides the processing program (A) into blocks and sends them to the loader processing unit 4. (3) In the loader processing unit 4, the line control unit 4-0 receives this and buffers it by a buffer (not shown) until one file is created. Then, when it becomes one file, this is sent to the FAT control writing processing section 5-1 of the DOS control section 5 by the file entry section 4-1.

(4) FAT control write processing unit 5-1
Stores it in the RAM-DISK 6 by the FAT control method. (5) When the remote installation process of the processing program (A), the processing program (B), ... Is completed in this way, the loader processing unit 4 sets the startup drive to the ROM.
-Change from DISK3 to RAM-DISK6 and D again
The OS control unit 5 is activated.

(6) As a result, as shown in FIG. 2, the processing program (A), the processing program (B), ... Stored in the RAM-DISK 6 is executed by the program execution unit 9 this time. Become.

[0030]

According to the present invention, when the DOS processing program (A), processing program (B), ... Held in the program holding unit 10 by the controller is remotely installed, it is prepared in advance in the DOS control unit 5. RAM-D by the FAT control write processing unit 5-1
Since it can be stored in the ISK 6, the loader processing unit 4 simply needs to write a file without being aware of FAT, and there is no need to provide a loader processing unit as in the conventional case.

Further, the DOS control section 5 is a RAM-DISK 6
Is stored in the RAM-DISK6.
There is absolutely no inconvenience when retrieving files from.
Since the installation process and the execution operation process are separate, the loader process does not overwhelm the main memory.

The file message from the controller is
Since the loader processing unit 4 can store up to one file, chained blocks do not have to be received in order from the head. Therefore, broadcast transmission becomes possible.

Here, the term "broadcast transmission" means that chained file telegrams are transmitted in block units, and the receiving side is aware of the number in block units and ends when the numbers from the reception start number to the reception start number are received. In this method, the files need not be received in order from the beginning.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram when the processing program of the present invention is executed.

FIG. 3 is a conventional example.

FIG. 4 is a conventional example for a RAM-DISK.

FIG. 5 is an explanatory diagram of FAT.

[Explanation of symbols]

1 controller 2 devices 3 ROM-DISK 4 Loader processing unit 5 DOS control section 6 RAM-DISK 7 Boot ROM

Claims (2)

[Claims] 1. A file entry provided in a loader processing unit (4) in a remote installation processing method of a DOS program for writing a DOS program held in a program holding unit (3) to a device operated by the DOS by a controller. Division (4-
1) and a FAT control write processing unit (5-1) provided in the DOS control unit (5), and stores the DOS program held in the program holding unit (3) into a file writing unit (4-1). And the operation program holding unit (6) by the FAT control write processing unit (5-1)
The remote installation processing method of the DOS program, which is characterized in that 2. The remote installation process of a DOS program according to claim 1, wherein the DOS control unit (5) is activated when the power is turned on, and the FAT control write processing unit (5-1) is put into an operating state. method.