JPH0934578A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor which can change its constitution even in a suspension mode. SOLUTION: A CPU 4 of a personal computer records the system information on a fixed disk 5 in a suspension mode and then compares in a resumption mode the system information recorded in the suspension mode with the system information on the resumption mode. If the difference is confirmed between both system information, the resumption processing is carried out if possible by the relocation of a memory, etc. If the resumption processing is impossible, a system is started again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device such as a personal computer, and information having a so-called suspend / resume function in which a part of the power supply of the main body is turned off while holding the information used up to that point in a memory or the like. Regarding a processing device.

[0002]

2. Description of the Related Art Conventionally, various personal computers have been in widespread use, but recently, a personal computer having a function of storing stored information in a non-volatile storage device such as a hard disk drive at the time of suspension and completely turning off the power of the main body. Computers are being developed.

[0003]

However, the above-mentioned prior art has the following problems. That is, when the user replaces or adds a memory or hard disk in the suspended state of the personal computer and resumes the operation as it is, the actual device configuration of the personal computer system and the saved information stored at the time of suspension cannot be matched. It could cause problems, and was supposed to terminate in error. Therefore, when changing the device configuration of the personal computer system, it was necessary to turn off the power supply.

An object of the present invention is to solve the above problems, and an object thereof is to provide an information processing apparatus capable of changing the device configuration even during suspension.

[0005]

In order to achieve the above object, the present invention records the system information such as a memory in a non-volatile storage means such as a fixed disk and completely cuts off the power supply of the main body, and a suspend function and a resume function. In the information processing apparatus including the control means having, the control means records the system information at the time of the suspension in the nonvolatile storage means at the time of suspend, and the system information at the time of resume and the system information at the time of suspend. If the system information recorded at the time of the suspend and the system information recorded at the time of the suspend differ from the system information recorded at the time of the suspend, the resume processing is performed when the resume is possible and the resume is impossible. In this case, the system is configured to have a function of performing a system restart process.

[0006]

According to the present invention, the control means of the information processing device is
In the case of the suspend state, the system information at that time is recorded in the nonvolatile storage means. Further, when the resume state is reached, the control means compares the system information recorded in the nonvolatile storage means at the time of suspension with the system information at the time of resume. Then, if the system information at the time of suspend recorded in the non-volatile storage means is different from the system information at the time of resume, the control means performs the following processing. That is, if the resume is possible, the resume process is performed as it is, and if the resume is not possible, the system restart process is performed. With this, when changing the device configuration of the system,
It is possible to change the device configuration even during suspend, without turning off the power supply as in the conventional case.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the personal computer system of this embodiment, which is a battery 1, a power switch 2, a suspend / resume switch 3, and a CP.
U (central processing unit) 4, memory 5, fixed disk (hard disk) 6, keyboard 7, display 8, FD
It has a configuration including a D (floppy disk drive) 9.

From the battery 1, a CPU 4, a memory 5, a fixed disk 6, a keyboard 7, a display 8, a power switch 2 and a suspend / resume switch 3,
Electric power is supplied to the FDD 9. The suspend / resume switch 3 is a switch pressed when the system is brought into the suspend state / resume state. CPU4
Performs processing shown in FIG. 2 to be described later in addition to normal processing based on the processing procedure stored in the memory 5 in advance.
Various data is recorded in the memory 5. On the fixed disk 6, system information, memory size, etc., which will be described later, are recorded. The keyboard 7, the display 8 and the FDD 9 are well known and will not be described.

Next, the operation of this embodiment will be described by taking the case where the memory 5 or the fixed disk 6 is changed as an example.

(1) Operation at Suspend When the user presses the suspend / resume switch 3, the CPU 4 checks the memory size when the suspend / resume switch 3 is pressed.
Then, the CPU 4 records the system information necessary for normal suspending, such as the contents of the memory 5, on the fixed disk 6, and also records the memory size, which is checked when the suspend / resume switch 3 is pressed, on the fixed disk 6.

(2) Operation at Resume When resuming, the processing shown in FIG. 2 is performed. That is, C
The PU 4 reads the memory size recorded on the fixed disk 6 from the fixed disk 6 (step S
1) It is checked whether or not there is information on the memory size recorded during suspending (step S2). When the memory size is not recorded in the fixed disk 6, the CPU 4 is changed to a fixed disk in which the suspend information is not recorded, or is changed to a fixed disk in which the suspend information is recorded by the conventional method. It is determined that it has failed (step S3), and system restart processing is performed (step S4).

When the memory size is recorded on the fixed disk 6, the CPU 4 checks the current memory size (step S5) and determines the memory size recorded on the fixed disk 6 and the current memory size. Are compared (step S6). When the memory size recorded in the fixed disk 6 and the current memory size are the same, the CPU 4 determines that neither the memory 5 nor the fixed disk 6 has been changed, and performs the resume processing as in the conventional case (step S8).

On the other hand, if the memory size recorded on the fixed disk 6 is smaller than the current memory size, the CPU 4 suspends the memory in a system having a reduced memory size or a larger memory size. Since it is impossible to return the recorded memory information to the present memory by judging that the fixed disk has been replaced, the system itself is restarted (step S7).

On the other hand, if the memory size recorded on the fixed disk 6 is larger than the current memory size, the CPU 4 suspends the system by adding more memory or by a system with a smaller memory size. It is judged that the fixed disk has been replaced, and it is judged that resuming is possible, and the memory contents are restored (step S
9). After that, the CPU 4 notifies the extended memory manager of the memory size change (step S10),
Other resume information is restored and resumed (step S11).

[0016]

As described above, according to the present invention,
When the system information at that time is recorded in the non-volatile storage means at the time of suspend, the system information at that time is compared with the system information at the time of suspend, and the system information at the time of suspend is different from the system information at the time of resume. In addition, since the resume process is performed when the resume is possible, and the system restart process is performed when the resume is not possible, it is possible to change the device configuration even during the suspension without turning off the power as in the conventional case.
This has the effect. In addition, since the device configuration can be changed even during suspension, suspend information can be recorded in a non-volatile storage means such as a fixed disk, so that different operating environments can be easily saved.
This has the effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a personal computer system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a resume process of this embodiment.

[Explanation of symbols]

 1 Battery (Power) 2 Power Switch 3 Suspend / Resume Switch 4 CPU (Control Means) 5 Memory 6 Fixed Disk (Nonvolatile Storage Means)

Claims (1)

[Claims] 1. An information processing apparatus comprising a control means having a suspend function and a resume function for recording system information such as a memory in a non-volatile storage means such as a fixed disk and completely cutting off the power supply of the main body. A function of recording the system information at the time of the suspension at the time of the suspension in the nonvolatile storage means, a function of comparing the system information at the time of the resume at the time of the resume with the system information recorded at the time of the suspension, and When the system information recorded during suspend is different from the system information at the time of resume, it has a function to perform a resume process if it can be resumed and a system restart process if it cannot be resumed. An information processing device characterized by the above.