JPH0619689A - Information processor - Google Patents

Abstract

PURPOSE:To obtain an information processor by which an interruption vector address can be changed even when the overlap of an interruption address is generated, and a trouble such as the hang-up of a system can be canceled. CONSTITUTION:A device driver 4 is read in a computer 1, and controlled by an application software 2 which operates a main program operation in the computer 1. And also, the device driver 4 operates the transfer of data and a command with the application software 2 by using a software interruption, and drives at least the peripheral equipment of the computer 1. The setting of the address of the software interruption is operated at the time of the registration of the device driver 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, computer software, and particularly in a device driver which is accessed by an application using a software interrupt, an interrupt vector address can be set when the device driver is registered. The present invention relates to an information processing device.

[0002]

2. Description of the Related Art Generally, in order to perform work using a computer, program software called an operating system and application software necessary for performing a desired work are loaded into the computer, and the computer is loaded. It achieves that goal by running on an operating system or application software.

By the way, in order to enable application software to be used in peripheral devices such as a printer such as a computer, dedicated software for driving these peripheral devices is prepared, and the software is the main operating system. It is necessary to be able to use it.

Conventionally, for example, a device driver as shown in FIG. 4 has been proposed as an information processing apparatus which meets such a request. FIG. 4 shows the configuration of a computer and software called device driver that drives application software (including an operating system) read by the computer and performs various processing operations and peripheral devices and other software. FIG. 5 is a block diagram showing the operation flow of the operating system and the device driver at the time of booting the operating system, and FIG. 6 is a flowchart showing the control operation when the device driver is controlled by a software interrupt from the application software. Is.

In the figure, reference numeral 1 is a host computer for reading an operating system or application system to perform various processes, and 2 is loaded into the computer 1 for performing various processes using various functions of the operating system. The application software 3 is incorporated in the operating system at startup, and is called a device driver that drives peripheral devices of the computer 1 or starts application software when an interrupt (software interrupt) is generated from the application software. Is a file that is

The operating system, application software and device driver will be described below. The operating system is software for performing basic control for performing processing by a computer such as activation of software, and the application software is, for example, a document. Software and device drivers that use the operating system to create graphics and drawings work by being incorporated into the operating system at startup, and to drive peripheral devices in response to access from application software, or application software. Is software for activating.

In the generally used operating system called MS-DOS, the device driver (in MS-DOS, for example, MOUSE.SYS using a mouse) is CONSIG. SY
It is registered in a file called S. At startup, the operating system incorporates the device driver 3 into the system based on the contents of this reference file, and drives peripheral devices and other program files corresponding to the device driver 3 at the time of access from application software. Or to start application software.

Next, the operation of the operating system and the device driver 3 will be described with reference to FIG. First, in step ST1, the operating system itself performs various processes of the operating system (various initial processes), and then in step ST2, the operating system designates a device designated by a reference file (CONFIG.SYS in MS-DOS). Register the driver as part of the operating system. Device driver 3 that the control registers when registering
Transition to.

Next, in step ST3, the device driver 3 performs initial processing of the device driver itself.
Normally, processing such as displaying a registration completion message on a display monitor (CRT) connected to the computer 1 (not shown) is performed. Next, in step ST4, the control is returned to the operating system, and the booting process of the operating system is completed.

Next, the operation when a device driver controlled by a software interrupt from the application software 2 is used will be described with reference to FIG. First, in step ST5, the function code is set in the register, then in step ST6, the necessary register is set based on the function code set in the register in step ST5, and then the INT interrupt vector address instruction is executed. As a result, the device driver is used.

[0011]

Since the conventional information processing apparatus is configured as described above, it cannot be changed once the interrupt vector address is set in the device driver, and it cannot be changed by a computer system, for example. In that case, there is a problem in that the interrupt vector addresses are duplicated, which causes a so-called hang-up state in which the normal processing operation cannot be performed.

The present invention has been made to solve such a problem, and an object thereof is to obtain an information processing apparatus capable of eliminating system hang-up due to duplication of interrupt vector addresses.

[0013]

An information processing apparatus according to the present invention is read by a computer and is controlled by a first software which carries out a main program operation in the computer, and data with the first software. And command transmission / reception using a software interrupt, and at least second software for driving peripheral equipment of the computer, wherein the setting of the address of the software interrupt is registered in the second software. It was designed to be performed at the time of.

Further, the information processing apparatus according to the present invention is read by a computer, controlled by the first software which performs a main program operation in the computer, and is accessed from the first software by using a software interrupt. The second software drives at least the peripheral device of the computer, and the address of the software interrupt is set at the time of registering the second software.

[0015]

According to the present invention, data and commands are exchanged with the first software by using the software interrupt, and at least the second software for driving the peripheral equipment of the computer is registered. Sets the address of the software interrupt.

In the present invention, the second software which is accessed from the first software by using the software interrupt and drives at least the peripheral equipment of the computer is used.
When registering the software, the software interrupt address is set.

[0017]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, parts corresponding to those in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted. 1A is a host computer, 2 is application software as first software, and 4 is a device driver as second software.

An example of input when registering the device driver 3 in the reference file will be described with reference to FIG. Figure 2
Is a reference file (CONFI in MS-DOS)
G. FIG. 6 is an explanatory diagram showing a registration state of a device driver name in (SYS), for example, a case where the contents of a reference file are displayed on a display monitor not shown. This Figure 2
In the above, “DEVICE =” is an example in which the contents of the reference file are displayed on the display, and the characters 5 that mean “device” and 5 are device driver names (MS
-For DOS, for example MO to use a mouse
USE. 6) is "/ V"
Is the part where the interrupt vector address is displayed. That is, as shown in this figure, when the device driver is registered, the interrupt vector address is registered in the reference file.

Next, the operating system and device driver 4 when the operating system is started
The operation will be described with reference to FIG. First, step ST
In 10, the operating system itself performs various processes of the operating system (various initial processes), and then in step ST11, the reference file (MS-
In DOS, CONFIG. The device driver 4 specified by (SYS) is registered as a part of the operating system. When the device driver 4 is registered, the control once shifts to the registered device driver 4.

In step ST12, the device driver 4
Initial processing of. At this time, since the address of the contents of the reference file is passed from the operating system to the device driver 4, the device driver 4 refers to the address and sets the interrupt vector address, and then the control returns to the operating system in step ST13. , Startup is complete. The control of the device driver controlled by the software interrupt after the registration of the operating system is the same as that of the conventional device shown in FIGS.

As described above, in this embodiment, since the interrupt vector address is designated when registering the device driver 4 in the reference file, the interrupt vector address is changed even when the interrupt addresses overlap. By doing this, it is possible to solve problems such as system hangup.

Example 2. It should be noted that in the above embodiment, the case where data and commands are exchanged between the application software and the device driver by using the software interrupt has been described. However, the access to the device driver from the application software is performed by the software interrupt. May be used. Also in this case, if the interrupt vector address is specified when registering the device driver 4 in the reference file as in the first embodiment, the interrupt vector address can be changed even when the interrupt addresses overlap. This allows you to eliminate problems such as system hangups.

Example 3. In the above embodiment, the method of designating the interrupt vector address is the device driver name and / V = interrupt vector address. However, the designation method after the device driver name is, for example, the device driver name or the interrupt vector address. You can

[0024]

As described above, according to the present invention, data and commands are read by the computer and controlled by the first software which performs main program operations in the computer, and data and commands with the first software. Is sent and received using software interrupt,
Second for driving at least the peripheral device of the computer
Since the software interrupt address is set when the second software is registered, the interrupt vector address can be changed even when the interrupt addresses overlap. This has the effect of eliminating problems such as system hangups.

The information processing apparatus according to the present invention is read by a computer, controlled by the first software which performs the main program operation in this computer, and is accessed from the first software by using a software interrupt. In the second software for driving at least the peripheral device of the computer, the address of the software interrupt is set at the time of registering the second software.
Even if the duplication of the interrupt address occurs, the interrupt vector address can be changed, so that there is an effect that the trouble such as the system hangup can be solved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an information processing apparatus according to the present invention.

FIG. 2 is a flowchart for explaining the operation of the information processing device according to the present invention.

FIG. 3 is an explanatory diagram for explaining an embodiment of an information processing device according to the present invention.

FIG. 4 is a block diagram showing a conventional information processing apparatus.

FIG. 5 is a flowchart for explaining the operation of the conventional information processing device.

FIG. 6 is a flowchart for explaining the operation of the conventional information processing device.

[Explanation of symbols]

 1 Host computer 2 Application software 4 Device driver

Claims (2)

[Claims] 1. A computer which is read by a computer and controlled by a first software which performs a main program operation in the computer, exchanges data and commands with the first software using a software interrupt. Along with the second software for driving at least the peripheral device of the computer, the setting of the address of the software interrupt is performed by the second software.
An information processing device, characterized in that it is carried out at the time of registration of the software. 2. A peripheral device of at least the computer, which is read by a computer and controlled by a first software which performs a main program operation in the computer, and which is accessed from the first software by using a software interrupt. Is a second software for driving the software, and the setting of the address of the software interrupt is performed by the second software.
An information processing device, characterized in that it is carried out when the program is registered.