JPH0364896B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Overview Connect various input/output devices, such as a bank's online system, load a program from a loading source such as an external storage device to the main memory, edit it, and use it. Therefore, in equipment that performs system control, if the input/output device is replaced with one with a different function, the adaptability of the entire system will be lost.
I have to edit the program again.
In order to save such trouble, the present invention provides a storage section that stores expected rewriting information according to each input/output device, and also includes a display section (flag bit) in the main memory that indicates whether rewriting is necessary. , and the necessary program data is loaded from the loading source for items that are compatible with each other.

(2) Field of Industrial Application The present invention relates to a method for loading a system program that controls various input/output devices such as an online banking system.

(3) Prior art In a control device that connects each terminal input/output device, each terminal input/output device has various connection patterns (patterns), which differ depending on, for example, the presence or absence of a printer or the type of printer. It has a shape that

In the prior art, a system program for each terminal is edited and registered from the beginning in each terminal input/output device (hereinafter referred to as a terminal) according to its configuration, and loading and processing are performed thereunder.

Therefore, it is a condition that the control program is registered in each terminal connected to the control device at the time of system editing.

Therefore, when changing the connected device during system operation, it is necessary to re-edit the control program for controlling the changed device at the same time as changing the device. Instead of just loading it, I treated it as one parameter, looked at that parameter, and loaded the corresponding printer program.

Therefore, it was not registered in the connector of the main memory. FIG. 3 shows a block diagram of a program loading system in the prior art.

In this figure, 3 is an external storage device such as a disk or floppy disk which is a loading source, and various system programs (SYS, PGM) are stored in this external storage device. The code 0 indicates a main memory device, which is composed of a processing unit (hereinafter referred to as CPU) 11, a channel 12, and a main memory 13.
Among them, the channel 12 is connected to hardware equipment 14 of various input/output devices (ie, terminal devices). In the loading source, all possible types of system programs are individually stored in advance, and when it is desired to re-edit or reorganize the system, the corresponding system program is read out in response to a command from the CPU 11. The method used was to expand the data onto the main memory 13.

(4) Problems to be Solved by the Invention However, in such conventional program loading methods, when changing terminal devices during system operation, a control program must be written for each terminal type or terminal combination pattern. There was a problem in that I had to re-edit it to register it again.

The present invention has been made focusing on such points,
The purpose is to provide a select load method that allows you to easily load the terminal device configuration without having to edit the system again when changing the terminal device during system control operation. be.

(5) Means for Solving the Problems In order to achieve the above object, the present invention has an external storage device storing a plurality of programs corresponding to various input/output devices, and a program that is to be controlled from the external storage device. In a system control unit that loads programs corresponding to input/output devices into main memory,
The external storage device is provided with a storage section for update information specifying a program group corresponding to the connection form of the input/output device, and the main memory stores change information that corresponds to the input/output device to be changed and can be set from the outside. A storage unit for storing the update information and a display area in which predetermined update information in the storage unit is specified are provided, and the specified update information is loaded into the main memory, and the connection mode set in the change information is calculated from this update information. The gist of the present invention is to select the update information and load the program specified by the selected update information from the external storage device.

(6) Function The present invention has a main connector and sub connectors (No. 1 to No. 3) in the main storage device connector of a terminal device (hereinafter, a printer connector will be taken as an example), and a system program (SYS, PGM). ), performs a counter search of the routine according to the present invention, and checks the load module numbers (LM It rewrites the .No. flag (FLAG) and then loads the normal program (PGM).

(7) Embodiment As mentioned above, the input/output devices of each terminal connected to the apparatus have various connection types, and each terminal device is operated according to a software program edited for each pattern.

The present invention performs loading of basic system programs (SYS, PGM) and selective loading when changing connected devices without re-editing the system program. By registering C-MOS parameters on a certain device in the form of a system configuration in advance, and taking appropriate processing, programs other than the basic program can be incorporated and edited as a system program before execution. The configuration and operation of this printer will be explained with reference to a block diagram in FIG. 1 and a flowchart in FIG.

In FIG. 1, reference numeral 1 indicates a printer connector as a display area which is the main storage section of an input/output device. The printer connector 1 is composed of a main connector and sub connectors 1 to 3. Also, each connector
It consists of a system mapping table with the following areas: CS (code segment), DS (data segment), SS (stack segment), LM No. (load module number), and FLAG (flag), and the program to be loaded is There is a load function and structure to specify. Further, there are various types of flags, each having different contents, such as a load flag, a memory protect flag, and a select load flag.

2 shows a printer rewrite information table as a storage unit for update information. This printer rewrite information table 2 is a table that stores all basic programs for each terminal used as a device ID and programs that may become elements of the system program.
This is an information program registered in an external storage device such as a floppy disk, that is, a disk D or a floppy disk E of the loading source 3. 4 is a pointer that indicates between the relevant load program and the area to be loaded.

Reference numeral 5 indicates a device table as a storage unit that stores change information. This device table 5 is a C-MOS parameter that instructs information rewriting ID. The program loading process of the printer connector loader for the basic loading configuration and the variable loading configuration is as follows.

(i) Basic loading configuration This is printer connector 1, LM in Figure 1.
No. S2, when the loading source 3 and the terminal device are connected, the initialized counter scans the initialized connector address from the main connector to the printer connector. When reaching the flag area, check the flag status, that is, the presence or absence of a load request, and if the load request flag is "1" (request exists), check the iD (A, B, or C) corresponding to that terminal, search for the program, and find the same program. iD
The program contents are loaded into the memory location indicated by the pointer in the specified CS and DS area.
These programs are all edited and registered for basic members, and the load request flag is “1”.
This is the basic form of loading in which it is loaded as is.

(ii) Variable loading configuration During system operation, if there are variable parts such as changes in connected devices, the connector sets the select load request flag to "1". As a result, the loading processing circuit becomes a select load mechanism circuit. FIG. 1 is a block diagram of the structure and operation showing this processing method.

In this device, first, the connectors of CS1 are counted, and when the select request flag is "1" in the flag area (LM, No./FLAG), the load module number (LM No.) of the rewriting information is counted for CS1. The corresponding program is selected from among the loading source 3 programs, and its load module number and program (printer rewriting information table) are loaded into the area indicated by CS1 of the main memory.

Next, the printer rewrite information table 2 stored in the loading source 3 holds all possible information of various patterns of connected terminal devices, so for CS1, the required LM is selected from among them under the select load mechanism. You can select No. The required load module number is the one connected to one of these. That I/
The selection of O information constitutes the device table 5.
- Perform this using a MOS (recording medium), and if, for example, 3 is currently connected as the device ID, select the information table of device ID C (rewrite conversion data for 80-digit centro interface). Next, the required load module number is searched from the above information using the slider, and the required load module number and flag are loaded into the designated area of the connector CS1.

The loading process continues as described above, and if the flag of connector CS3 is select load request "1", the printer rewrite information table is similarly loaded into the designated area of CS3.

By doing this, printer connector 1
will eventually become the basic loading configuration and return to normal processing. Note that if the connection I/O information is unused and "0", it is processed, the connectors (main, sub) are cleared to "0", and the process returns to normal processing.

FIG. 2 shows a flowchart of the select load method of the present invention. The functional path of the load process in this figure is the same as the explanation for the block diagram above, but to briefly explain it based on this flowchart, first, a connection is started when a select load is required for a certain terminal.

ST1; Initial value is set for connector count,
Start counting operation.

ST2: Initial setting of connector address is performed,
Also, set the start address of the segment multi-table. Based on this, counting is performed sequentially.

ST3: The connector count is updated, and the process progresses while updating the count for each connector pair.

ST4: Determine whether the connector is finished. When the count of all connectors ends, that is, becomes "0", the process ends.

ST5: Update connector address Sequentially update addresses and continue counting until all connector counts are completed.

ST6: If there is a "load request" in the FLAG table, that is, if it is "1", load processing is performed. Continue counting by sequentially updating addresses until all are completed.

ST7: Determine whether there is a select load request. When the select load request is set to "1" in the FLAG table, the process proceeds to select load processing, and when it is "0", the process branches to updating the connector count.

ST8; Load the rewrite information table. Here, the module indicated by the load module number in the load module number rewriting information table in the main connector is loaded from the loading source program file to the area indicated by CS in the main connector.

ST9: Determine whether I/O information exists. Here, the device ID in the rewrite information table is
Index the CMOS connection I/O information, and if the connection I/O information is “0”, that is, unused (M), the flag in the connector is set to “0”.
That is, the operation process ends (ST11), branches to update the connector count, and returns to normal processing. Connection I/O information is “Yes” (M),
If it is in the (N) state, the connector information is rewritten (ST10), and the process branches to update the connector count.

(8) Effects of the invention According to the invention, when changing a connected device, it is possible to easily change the connected device by setting change information from the outside without having to edit the system program again and without any complicated steps. Therefore, it is possible to build highly flexible operational applications.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration and functions of the present invention, Fig. 2 is a flowchart of its processing procedure,
FIG. 3 is a loading block diagram of the prior art. 1...Printer connector, 2...Rewriting information table for printer (device ID), 3...Loading source (external storage device), 4...Pointer for rewriting connector information, 5...Device table (C-MOS), 10
...Main storage device, 11...CPU, 12...Channel,
13...Memory, 14...Hard equipment, A, B, C...
Device ID, D, E...Respective disks and floppy disks in the loading source, L, M,
N...Printer connection I/O information in the device table.

Claims (1)

[Scope of Claims] 1. System control that has an external storage device storing a plurality of programs corresponding to various input/output devices, and loads programs corresponding to the input/output devices to be controlled from this external storage device into main memory. In the device, the external storage device is provided with a storage section for update information specifying a program group corresponding to the connection form of the input/output device, and the main memory is provided with a storage section for update information that specifies a program group corresponding to the connection form of the input/output device, and the main memory is provided with a section for storing update information that corresponds to the input/output device to be changed and can be set from the outside. A storage unit for storing change information and a display area in which predetermined update information in the storage unit is specified are provided, and the specified update information is loaded into the main memory and the change information is set from this update information. 1. A program loading method for a system control device, characterized in that information on a selected connection type is selected, and a program specified by the selected update information is loaded from the external storage device.