JPH05289884A - Initial program loading system - Google Patents

Abstract

PURPOSE:To bring history data under control by transferring the history data from a main storage device to a sub-storage device, and thereafter, loading a main program loading program to the main storage device and actuating it, and actuating a main program after loading the main program to the main storage device. CONSTITUTION:By an actuation request, a CPU 1 loads a history data save program to a main storage device (MEM) 2 from a sub-storage device (SBM). Subsequently, the history data save program loaded to the MEM 2 is actuated and save of the history data for transferring the history data in the MEM 2 to the SBM 3 is executed. The CPU 1 loads a main program loading program to an application program being a main program to the MEM 2 from the SBM 3, and actuates the main program loading program. The CPU 1 loads the application program of the main program in the SBM 3 to the MEM 2 by actuating the main program loading program and actuates the main program, and finishes an initial program loading program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an initial program loading method, and more particularly to an initial program loading method for a main program and an application program at system reset.

[0002]

2. Description of the Related Art Conventionally, in this type of initial program loading method, a main program and an application program are loaded when the system is reset.

[0003]

The above-mentioned conventional initial program loading method is a method of loading an application program at the time of system reset, and does not include means for saving history data at system reset.
There is a problem that the history data cannot be saved, and even if the application program is provided with a means for saving the history data, a part of the history data is destroyed by loading the application program and sufficient history data cannot be saved.

An object of the present invention is to provide an initial program loading method that enables saving of history data at system reset regardless of the functions of the main program and the application program.

[0005]

According to the initial program loading method of the present invention, a history data save program for history data of processing results accumulated in a main storage device in a sub storage device, a main program, and this main program A main program loading program for loading into the main storage device is stored in advance, and the history data save program is loaded into the main storage device and activated by a predetermined activation request at the time of system reset, and the history is stored. Data is transferred from the main storage device to the sub storage device, and after this transfer, the main program loading program is loaded into the main storage device and activated, and after the main program is loaded into the main storage device, the main program is loaded. to start.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an example of a system to which an embodiment of the present invention is applied. FIG. 2 is a flowchart showing an initial program loading procedure of an embodiment of the present invention shown in FIG. is there.

In FIG. 1, the system of the present application example includes a history data save program, a main program application program load program, and a sub storage device (SBM) 3 for storing the main program application program, and an SBM.
3 has a main memory (hereinafter referred to as MEM) 2 into which each program is loaded, and a central processing unit (hereinafter referred to as CPU) 1 that controls the MEM2 and SBM3 via the bus 4 to execute the programs in MEM2. Are configured.

Next, the processing procedure of one embodiment of the present invention in this application example will be described with reference to FIGS.

It is assumed that a history data program, an application program load program, and an application program which is a main program are applied to the SBM 3 in advance. Further, the MEM 2 is assumed to have accumulated the history data of the result of the processing of the system of this application example up to now.

At the time of system reset in this application example, the CPU 1 first responds to the SBM 3 by a predetermined start request.
To load the history data save program into MEM2 (S11). Next, the history data save program loaded in the MEM2 is activated (S12), and the history data in the MEM2 is moved to the SBM3 to save the history data (S13).

Next, the CPU 1 loads the main program load program for the application program, which is the main program, from the SBM 3 into the MEM 2 (S14), and activates the main program load program (S15).

The CPU 1 loads the application program of the main program in the SBM 3 into the MEM by activating the main program load program (S16), starts the main program after this loading is completed, and ends the initial program load program.

[0014]

As described above, according to the present invention, the history data save program for the history data of the processing result accumulated in the main memory device in the sub memory device, the main program, and the main program to the main memory device. A main program for loading and a load program are stored in advance, and the history data program is loaded into the main storage device and activated by a predetermined activation request at the time of system reset, and the history data is transferred from the main storage device to the sub storage device. When the system is reset regardless of the function of the main program, the main program load program is loaded into the main storage device and started after this transfer, and the main program is started after loading the main program into the main storage device. Since it is possible to collect the history data of the There is an effect that it is possible to carry out an in-analysis.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a system to which an embodiment of the present invention is applied.

FIG. 2 is a flow chart showing a procedure of initial program loading in the application example shown in FIG.

[Explanation of symbols]

 1 Central Processing Unit (CPU) 2 Main Memory (MEM) 3 Secondary Memory (SBM) 4 Bus

Claims (1)

[Claims] 1. A history data save program for history data of processing results accumulated in a main storage device in a sub storage device, a main program, and a main program loading program for loading the main program into the main storage device. Is stored in advance, and the history data save program is loaded into the main storage device and activated by a predetermined activation request at the time of system reset, and the history data is transferred from the main storage device to the sub storage device. The initial program loading method is characterized in that the main program loading program is loaded into the main storage device and activated after the transfer, and the main program is activated after loading the main program into the main storage device.