JPH0377134A - Optimum environment setting program for computer system - Google Patents

Abstract

PURPOSE:To quickly change the environmental variable of an operation system without performing a reapplication operation of a power supply nor a resetting operation by providing a 1st transfer means, a 2nd transfer means, an initializing means, an environment setting means, and a system starting means, thereby setting again the environmental variable. CONSTITUTION:The 1st transfer means 11 is provided together with the 2nd transfer means 12, the initializing means 13, the environment setting means 14, and the system starting means 15. The means 14 sets an optimum environmental variable to a new operation system in response to a function program to be actuated next. Then the means 15 starts automatically the new operation system where the environmental conditions are arranged. In such a constitution, the optimum environmental conditions can be obtained by switching in the least time required without performing thr reapplication operation of a power supply nor a resetting operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an optimal environment setting program for a computer system for quickly setting optimal environment variables corresponding to a function program operated within the computer system.

BACKGROUND OF THE INVENTION Computer systems incorporate operating systems in order to make the most efficient use of their own resources, and various function programs are operated on the basis of these operating systems.

Therefore, in a so-called single-task type operating system that sequentially switches and operates different function programs, it is important to set the environment variables of the operating system optimally to match the function program to be operated. be. Depending on the content of the function program, the program memory size used, the type of peripheral equipment, the required buffer memory size, etc. vary greatly, and in small systems without sufficient resources, the operation of the function program depends on the appropriateness of these allocations. This is because the speed fluctuates greatly, and in some cases, the operation itself may become impossible.

For example, in MSDO3 (a disk operating system provided by Microsoft), which is the most famous operating system for personal computer systems, by setting several environment variables in specific environment settings sections called C0NFIG and SYS, Optimal environmental conditions can be set according to the function program to be operated.

The problem to be solved by the invention is that when using such conventional technology, the resetting operation of environment variables is performed only in conjunction with the power-on operation of the computer or the reset operation of the central processing unit (CPU).
There was a problem in that the time required for the resetting operation was too long. In other words, if you try to change the environment variables of the operating system after completing the operation of one function program and switching to another function program, you will be forced to power cycle the computer or perform a reset operation. , all the hardware included in the system is checked, which wastes time. In other words, the check operation at this time repeatedly checks hardware that is obvious to be normal.
It must be said that this is a completely redundant operation.

SUMMARY OF THE INVENTION In view of the problems of the prior art, an object of the present invention is to
An object of the present invention is to provide an optimal environment setting program for a computer system, which allows environment variables of an operating system to be quickly changed.

Means for Solving the Problems The structure of the present invention to achieve the above object is to use bulk memory (meaning a large-capacity auxiliary memory device including a disk device, hereinafter the same) through an operation system existing in the main memory. a first transfer means for transferring an operating system therein to a working area of main memory;
a second transfer means for transferring the operation system transferred to the working area by the transfer means to a predetermined operation system area of the main memory; an initialization means for initializing components in the system; The gist thereof is to include an environment setting means for setting environment variables, and a system startup means for starting the operation system in the operation system area.

Note that the environment setting means may be configured to be able to select and set environment variables based on different environment setting data by designation.

According to this configuration, first, the first transfer means can transfer the operation system in the bulk memory into the working area via the operation system in the main memory. The memory contains an operating system that has traditionally existed in a predetermined operating system area (hereinafter referred to as the old operating system), and an operating system that has been newly transferred to the working area (hereinafter referred to as the new operating system). There will be two operating systems. Therefore, when transferring a new operating system to the main memory, the old operating system can be used, and the memory transfer function included in the old operating system can be used as is for the transfer operation, without any modification. Does not require special consideration.

Subsequently, the second transfer means transfers the new operating system to the operating system area in the main memory, using hardware instructions for the central processing unit. The old operation system will be destroyed as the new operation system is transferred, so it is impossible to use it, while the new operation system will still be able to perform the prescribed functions because it is not in the prescribed operation system area. This is because it cannot be done.

Next, the initialization means initializes components within the system such as the central processing unit, peripheral devices, and interrupt vectors within the system, while the environment setting means sets predetermined environment variables to the environment setting section of the new operating system. This time, too, hardware instructions are used. Subsequently, when the system startup means finally transfers control to the start address of the new operation system, the new operation system can be started, and the environment variables at this time will be the new ones set by the environment setting means. It has become.

The environment variables may be set by the environment setting means while the new operation system is in the bulk memory before the new operation system is transferred by the first transfer means. ,
The process may be performed while the new operating system has been transferred to the working area. In either case, the old operating system in the operating system area can be used to set environment variables for the new operating system.

When the new operating system is started in this way, 1. Based on this, a predetermined new function program may be activated.

When the environment setting means can select and set environment variables based on different environment setting data, a different function program can be automatically started by specifying parameters etc. so that the environment variables can be selected and set according to the contents of the new function program. This is convenient when doing so.

Note that the optimal environment setting program for a computer system that operates in this manner can be constructed as a function program that operates under the old operating system.

Example Examples will be described below with reference to the drawings.

The optimal environment setting program for the computer system (hereinafter simply referred to as the environment setting program) 10 includes a ↓ transfer means 11, a second transfer means 12, an initialization means 13,
The environment setting data 4 and the system startup means 15 are connected in series,
(Figure 1).

The activation command from the outside is input to the first transfer means 11, while the environment setting means 14 stores a plurality of environment setting data 1.
6.16... is connected.

The output of the first transfer means 11 is connected to a bulk memory BM represented by a disk device.
It is assumed that an operating system for which environment variables have not been set is stored in . The output of the second transfer means 12 is connected to the central processing unit CPU and various peripheral devices A and x in the system, and the output of the environment setting means 14 is also connected to the central processing unit CPU and various peripheral devices A and x in the system.
It is connected to the central processing unit CPU.

The environment setting program 10 is loaded into the working area A in the main memory MRY of the computer system under the control of the old operating system existing in the operating system area O3A (FIG. 2).
, operates as one function program belonging to the old operating system.

When the environment setting program 10 having such a configuration is started under the management of the old operation system, it transfers the operation system in the bulk memory BM to the main memory MRY as a new operation system, and also sets the environment variables to predetermined contents. You can set the environmental conditions required by the function program to run next.

The environment setting program 10 is started based on the old operating system when a start command is given from the outside.

However, the activation command can be given, for example, from a keyboard (not shown), or it can be given automatically when the function program that has been running so far ends.

When the environment setting program 1.0 is started, the first transfer means 11 is activated and transfers the operation system in the bulk memory IJBM to the working area WA of the main memory MRY, making this the new operation system (second 11) on the arrow in the figure.

The transfer at this time can be performed under the management of the old operating system existing in the operating system area O3A of the main memory MRY, using its memory transfer function as is. The new operating system has its environment variables unset.

Next, the second transfer means 12 transfers the new operation system from the working area WA to the operation system area O3A in the main memory MRY via the central processing unit CPU (arrow in FIG. 2). 12). At this time, the second transfer means 12 uses hardware instructions for the central processing unit CPU, and therefore, even if the old operation system existing in the operation system area O3A is destroyed by the transfer of the new operation system, the new operation There is no problem in the transfer operation of the system.

Next, the initialization means 13 initializes the components within the system, such as the central processing unit CPU and the peripheral equipment Ax attached to the system. At this time, the peripheral device Ax is
When supported by the basic attendance system (BIO3) housed in the BIO3, the initialization means 13 may perform the initialization operation via this BIO3;
For peripheral devices Ax that do not have this, the initialization operation for the hardware can be directly performed. In addition, the initialization of the central processing unit CPU at this time means the main memory M
The main task is to initialize the interrupt vector table prepared inside the RY, and the central processing unit CPU and main memory 'JM
There is no need to check the connection status and operating status of RY, etc.

When the predetermined initialization operation by the initialization means 13 is completed,
The environment setting means 14 is an operation system area O.
Set the specified environment variables in the environment setting section EVA of the new operation system transferred to 3A (Second
14) on the arrow in the figure.

At this time, the environment setting means 14 selects any one of the plurality of environment setting data 16, 16... and uses the data prepared in the data to set specific environment variables. shall be determined. That is, when starting the environment setting program 10, if, for example, a specific parameter is specified corresponding to the function program to be started next, the environment setting means 14 will set the environment setting data 16. 16
You can select a predetermined one from ... and set a predetermined environment variable.

The data prepared in the environment setting data 16, 16, etc. may be some environment variables themselves for the operating system, or may be data for determining these environment variables. For example, the type of peripheral device Ax and bulk memory BM used by the function program to be started next, the bulk memory BM and main memory M
Primary data such as the used capacity of RY and the required operating speed of the function program are stored in the environment setting data 16.16...
The environment setting means 14 may calculate and determine specific environment variables based on these next data.

When the environment setting means 14 is activated, since the new operation system in the operation system area O3A of the main memory MRY is not yet in a state where it can be started, all environment variable setting operations are carried out by /'v to the central processing unit CPU. - It shall be performed by a software instruction.

Subsequently, the system starting means 15 transfers control to the start address of the new operating system in the operating system area O3A and starts the new operating system, so that the new operating system is operated next under its management. The function program to be executed can be started. Since the new operation system is in a state where the environment setting means 14 has set the optimum environment variables that match the function program to be operated next, the function program at this time is set under the corresponding optimum environment conditions. can operate.

Note that each of the above operations can be displayed in a flowchart as shown in FIG. Here, step (1) in Figure 3
) corresponds to the first transfer means 11 in FIG.
It is clear that this corresponds to the system startup means 15.

In other embodiments, the environment setting means 14 may utilize a single environment setting data 16. That is, when the environment setting program 10 is a dedicated program for establishing environmental conditions suitable for a specific function program, it is sufficient to set the optimum environment variables corresponding to the function program.

The environment variable setting operation by the environment setting means 14 can also be executed prior to the transfer operation of the new operating system by the ↑th transfer means 11 or the second transfer means 12. For example, when executing the operation of the first transfer means 11, it is sufficient to set environment variables for the operating system existing in the bulk memory BM, and before the operation of the second transfer means 12, When executing the new operation system transferred to the working area WA by the first transfer means 11,
All you have to do is set the environment variables. In either case, since the old operating system exists in the operating system area O3A of the main memory MRY, the operation of the environment setting means 14 at this time does not need to be based on hardware instructions; Under management, it is possible to use the various memory transfer functions included therein as they are.

Note that the environment setting program 10 according to the present invention is constructed as one function program that operates under the control of the old operating system existing in the operating system area O3A, so that It can be easily applied even if the types are different. However, at this time, the bulk memory BM that stores the new operation system
is the first operating system operating under the control of the old operating system.
In order for the transfer means to operate smoothly, the format required by the old operating system must be met.

As described in detail, according to the present invention, the environment setting means includes the first transfer means, the second transfer means, the initialization means, the environment setting means, and the system starting means. , the optimal environment variables are set in the new operating system corresponding to the function program to be operated next, and the system startup means can automatically start the new operating system with the environmental conditions set in this way. This has the excellent effect of being able to quickly switch to the optimal environmental conditions in the shortest amount of time without requiring power-on operations or reset operations.

[Brief explanation of drawings]

1 to 3 show an embodiment, in which FIG. 1 is a block diagram of the overall configuration, FIG. 2 is an explanatory diagram of a memory map, and FIG. 3 is a flow chart. BM...Bulk memory MRY...Main memory O3A...Operation system area WA...
Working area EVA...Environment setting unit 11...First transfer means 12...Second transfer means↓3...Initialization means 14...Environment setting means 15...System startup means 16...・Environmental setting data

Claims (1)

[Claims] 1) A first transfer means for transferring an operation system in the bulk memory to a working area of the main memory via an operation system existing in the main memory; a second transfer means for transferring data to a predetermined operation system area of memory; an initialization means for initializing components within the system; an environment setting means for setting predetermined environment variables in an environment setting section of the operating system; An optimal environment setting program for a computer system, comprising a system startup means for starting an operation system in an area. 2) The optimal environment setting program for a computer system according to claim 1, wherein the environment setting means is capable of selectively setting environment variables based on different environment setting data upon designation.