JPH06289948A - System restarting device - Google Patents

Abstract

PURPOSE:To improve the reliability of a resuming operation for storing a state when a power source is turned off in a memory, reading it when the power source is turned on and reproducing the state. CONSTITUTION:When a power switch 112 is turned off, a system termination detection means 107 detects it and a system state saving processing means 108 is started. The system state saving processing means saves the state of CPU 101, the memory 102 and a control means 103 into a non-volatile memory 104. A state saving monitor means 114 monitors the state saving operation. When a prescribed state occurs, a saving recognition discrimination means is started and a user is caused to input whether the saving of the state is to be continued or not. When the user selects the stop of state saving, a state saving stop means is started, state saving is stopped and a system is restored to a state before the power switch is turned off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system restarting device for computer devices such as personal computers and workstations.

[0002]

2. Description of the Related Art Recently, a portable personal computer called a book type or a notebook type has realized a system restarting device called a resume function. This function is, for example, “DynaBook Guide”,
As described in Toshiba Corporation, even if the power is turned off during the work using the battery built into the system, the same state as before is reproduced when the power is turned on next time. You can continue.

In FIG. 23, when a document is created using a computer system, the work is interrupted and the power is turned on once.
The flow of the process performed by the user when the power is turned on and then the power is turned on and the work is restarted is shown with and without the resume function.

As can be seen from FIG. 23, when the resume function is provided, the user does not need to save the created document and turn off the word processing software (document creating program) before the power is turned off. After being turned on, the processes of activating the operating system, activating word processing software, and recalling the saved text are not necessary.

This function is realized by the configuration shown in FIG. Referring to the drawings below,
An example of the conventional system restart device described above will be described.

FIG. 22 is a block diagram of a computer system including a conventional system restart device.
In FIG. 22, 2201 denotes a CPU 101 and a memory 10.
2, display control device 2202, external storage control device 220
4, a control board on which the input control device 2203 is mounted, 105
Is a display device, 106 is an input device, 2205 is an external storage device, 2206 is a power supply device incorporating a battery 2208,
Reference numeral 112 is a power switch, and 2207 is an external power supply device.

The operation of the computer system including the system restart device configured as described above will be described below.

First, the power supply 2206 is the external power supply 2
When the power is supplied from 207, the power is supplied to each part of the computer system and the battery 22
08 is charged, and power is supplied from the battery when power is not supplied from the external power supply device 2207 or when the power is not connected to the external power supply device 2207.

Normally, when a work such as document creation is performed using this computer system, the power supply device 220
Power is supplied from 6 to the control board 2201, the display device 105, the input device 106, and the external storage device 2205.

Next, when the power switch 112 is turned off, the power supply device 2206 is powered by the battery 2208 regardless of whether power is supplied from the external power supply 2207.
Supplies power only to the control board 2201. At this point, the screen of the display device disappears, the connection with the external power supply 2207 can be cut off, and the power is apparently turned off. However, the control board 2201 has a battery 2208
Since the power is continuously supplied from, the state of the CPU 101, the state of the data on the memory 102 and the state necessary for resuming the work are stored as they are.

Next, when the power switch 112 is turned on again, the power device 2206 causes the display device 105 and the input device 1 to operate.
06, power is also supplied to the external storage device 2205. Then, first, the display control device 2202 and the external storage control device 2
After initializing 204 and the input control device 2203,
By outputting the state data of the screen stored in the memory 102 to the display device 105 and restoring the state of the CPU 101, it is possible to restart the work being executed before turning off the power switch 112.

However, in the above-mentioned structure, a battery is required, which increases cost and weight. In the case of a computer system such as a workstation that operates at high speed, the power consumption of the entire system is large.
Moreover, although many of the LSIs used do not have the power consumption mode as described above, in such a system, it is impossible to hold the power-off state for a long time by suppressing the consumption of the battery. For example, in a personal computer level system, one battery
Compared with being able to maintain the state for about a week, a workstation-level system can retain the state for only about one hour with a battery of the same capacity. Further, since it basically depends on the power supply from the battery, there is a problem that the time during which the state can be maintained is limited by the battery capacity.

Therefore, the applicant of the present application has filed Japanese Patent Application Laid-Open No. 4-1374.
Nos. 84, 137485, and 137486 disclose means for solving the above problems. This will be described with reference to FIG.

In FIG. 24, 104 is a non-volatile memory, 107 is a system end detecting means, 108 is a system state saving processing means, 110 is a system start detecting means, 1
Reference numeral 11 is a system state reproduction processing means.

In the system restarting device constructed as described above, when the power switch 102 is turned off, the system state saving processing means 107 detects this,
An interrupt signal for notifying the CPU is output. Then, the CPU calls the system state saving processing means 108.

The system state saving processing means 108 is a CP
Of the information of U101 and the control device 103, the information necessary for state reproduction is stored in the non-volatile memory 104. Next, the restartable flag is set, and finally the power supply 113 is turned on.
Send an FF signal. In this state, the system is turned off.

Next, when the power is turned on again, the power supply device 11
3, the system activation detection means 110 inputs a power-on reset signal to the CPU 101, and the system state reproduction processing means 111 is called.

The system state reproduction processing means 111 determines whether or not the restart flag is set in the non-volatile memory 104.

If the flag is not set,
Perform normal system startup processing. When the flag is set, the control device 103 is initialized first. Next, from the non-volatile memory 104, the control device and the CPU when the power is turned off
Read and set the state of. Finally, by performing interrupt recovery processing, it is possible to recover the state when the power was turned off.

In this way, the power supply to the non-volatile memory is turned off.
By saving the time state and reproducing the power-off state based on the information in the non-volatile memory when the power is turned on, the power can be turned off indefinitely regardless of the battery capacity.

[0021]

However, in the configuration of the above-mentioned conventional example, there are cases where the capacity of the non-volatile memory is insufficient during the state saving, or when erroneous data is read during the state reproduction. Even if the saving and reproducing of the state fails, the saving and reproducing of the state are continued, which may cause a problem such as a system runaway after the state is reproduced.

[0022]

In order to solve the above-mentioned problems, the system restarting device of the present invention comprises a state saving monitor means for monitoring the saving of the system state in the storage means,
A state evacuation stop means for stopping evacuation of the system state based on the information obtained by the state evacuation monitor means.

Further, there is provided a save confirmation judging means for displaying the information obtained by the status save monitoring means on a display device and selecting whether or not to activate the status save stopping means in response to a user input thereto.

[0024]

With the above configuration, if any problem occurs during saving or reproducing the system state, saving or reproducing the state can be stopped. Further, the user can select whether to continue saving or reproducing the system state according to the situation, and can save or reproduce the state with high reliability.

[0025]

【Example】

(Embodiment 1) A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a system restart device according to a first embodiment of the present invention. Figure 1
In 101, 101 is a CPU, 102 is a memory, 103 is a control device, 104 is a non-volatile memory, 105 is a display device, 106 is an input device, 107 is a system end detection means, 108 is a system state save processing means, and 110 is a system start-up. Detecting means, 111 is system state reproduction processing means, 112 is a power switch, 113 is a power supply device, 114
Is a state evacuation monitoring means.

FIG. 2 is a diagram showing a register configuration inside the CPU 101. In FIG. 2, 201 is a program counter (hereinafter PC), 202 is a processor status word (hereinafter PSW) indicating the state of the CPU 101, and 203-2.
Reference numeral 09 is a general-purpose register group including 16 registers each.

FIG. 3 is a diagram showing the internal structure of the PSW 202. In FIG. 3, 301 is a current window pointer (hereinafter CWP) indicating which general register group of 203 to 209 is currently used, and 302 is the current CPU 1
The current status indicating the mode status of 01 (hereinafter C
S) and 303 are preview states (hereinafter PS) indicating the mode state of the CPU 101 when the interrupt occurs.

The operation of the system restart device configured as described above will be described below with reference to the drawings.

First, the operation when the CPU 101 is interrupted will be described. When interrupt occurs CP
U101 first increments the value of CWP301 by one and switches the general-purpose register group. Then, the value of PC201 at the time of the interrupt is copied to the 16th register of the general-purpose register group indicated by CWP301, and the value of CS302 is PS.
Copy to 303. Then, the value of the PC 201 is rewritten to branch to the interrupt processing program designated in advance.

The interrupt processing program executes the interrupt return instruction at the end of its processing. When this instruction is executed, the CPU 101 first copies the value of PS303 to CS302, and branches to the address stored in the 16th register of the general-purpose register group indicated by CWP (PC201.
Rewrite the value of). Finally, the CWP value is decreased by 1. At this point, the state of the CPU 101 returns to the state at the time when the interrupt occurred.

Next, the overall operation will be described. 4 is a flow chart showing the system state saving process, FIG. 5 is a flow diagram showing the system state reproducing process, and FIG. 6 is a data structure diagram showing the internal structure of the nonvolatile memory 104.

First, when the system end detecting means 107 detects that the power switch 112 is turned off, the CP
An interrupt signal for notifying U is output. Then, the CPU executes the above-described operation when the interrupt occurs, and the system state saving processing means 108 is called.

The system state save processing means 108 first stores the contents of the PSW 202 of the CPU 101 in the PSW field 602 of the non-volatile memory 104 (step S401).

Next, the state save monitoring means 114 is the CPU 10
1 PSW 202 contents and non-volatile memory 104 PS
The contents of the W field 602 are compared. If the contents are the same, "PSW storage completed", and if the contents are different, "PS"
"The storage of W was unsuccessful" is displayed on the display device (step S402).

Next, the system state saving processing means 108
The contents of the general-purpose register groups 203 to 209 of the CPU 101 are stored in the CPU register field 60 of the nonvolatile memory 104.
3 (step S403).

Next, the state save monitoring means 114 is the CPU 10
The contents of the general register groups 203 to 209 of No. 1 and the contents of the CPU register field 603 of the non-volatile memory 104 are compared. If the contents are the same, "storage of general purpose register completed" is displayed, and if the contents are different, "storage of general purpose register unsuccessful" is displayed on the display device (step S404).

Next, the system state save processing means 108 stores the contents of the memory 102 in the memory field 604 of the non-volatile memory 104 (step S405).

Next, the state evacuation monitoring means 114 operates the memory 10
The checksum of the contents of 2 and the checksum of the contents of the memory field 604 of the non-volatile memory 104 are compared. If the contents are the same, "memory storage is completed" is displayed, and if the contents are different, "memory storage is unsuccessful" is displayed on the display device (step S406).

Next, the system state saving processing means 108 is, for example, the input device 10 among the internal registers of the control device 103.
The registers necessary for reproducing the state such as the baud rate register for setting the communication speed with the V.6 and the HD transfer mode register for setting whether to transfer with the hard disk in the synchronous mode are stored in the control device register field 605 of the non-volatile memory 104. Yes (step S407).

Next, the state evacuation monitoring means 114 is the controller 1
Of the 03 internal registers, the contents of the registers necessary for state reproduction are compared with the contents of the controller register field 605 of the non-volatile memory 104. If the contents are the same, "control register storage completed" is displayed, and if the contents are different, "control register storage unsuccessful" is displayed on the display device (step S408).

Next, the system state saving processing means 108 causes the restartable flag field 60 of the non-volatile memory 104.
1 is set to 1 (step S409).

Finally, the system state save processing means 108 sends a power OFF signal to the power supply device 113 (step S4).
10).

In this state, the system is turned off. Next, when the power is turned on again, power is supplied from the power supply device 113, the system activation detection means 110 inputs a power-on reset signal to the CPU 101, and the system state reproduction processing means 111 is called.

The system state reproduction processing means 111 firstly restarts the nonvolatile memory 104 in the restart flag field 6.
It is determined whether 1 is set to 01 (step S501).

If 1 is not set, the system startup processing similar to that of the conventional computer system is performed (step S509).

When 1 is set, the control device 103 is first initialized (step S502).

Next, the contents stored in the controller register field 605 of the non-volatile memory 104 are read out and set in the corresponding register of the controller 103 (step S503).

Next, the data stored in the memory field 604 of the non-volatile memory 104 is read out and the memory 1 is read out.
No. 02 (step S504). Memory 10
The screen display data of the display device 105 stored in No. 2 is transferred to the display device 105 to restore the screen state (step S505). Next, the data of the general-purpose register groups 203 to 209 of the CPU 101 stored in the CPU register field 603 of the non-volatile memory 104 are read and set in the corresponding registers (step S506). Next, the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 are read and set (step S507). At this point, the state is the same as it was just before returning from the interrupt processing described above. When the interrupt return instruction is finally executed, the system end detecting means 107 causes the CPU to perform the same processing as in the interrupt processing.
It returns to the state when the interrupt was input to 101 (step S508).

Next, an example of how to use the present embodiment will be described with and without using the resume function.

FIG. 7 is a flow chart showing the processing when the system is started without using the resume function and a new sentence is created while referring to the previously created and saved sentence, and FIG. 8 is the display device at that time. The image figure which shows the mode of the screen of 105. FIG. 9 is a data structure diagram showing the structure of data on the memory at that time. FIG. 10 is a flow chart when the document creation is interrupted and the system power is turned off without using the resume function.

First, when the power is turned on (step S70)
1), the operating system is a non-volatile memory 10
4 is read into the OS area 901 of the memory 102.
The OS area 901 also contains data such as a memory management table for managing the memory usage status and a process management table for managing the status of each program operating on the system.

Next, the user activates the window system (step S703). Then, the window system program is first transferred from the nonvolatile memory 104 to the memory 1
02 window system area 902.
The window system area stores data such as the number of windows displayed on the display device 105, the size and position of each window.

Next, the user opens the window 801 (step S704). Then, data such as the position and size of the window is stored in the window system area 902, and the window data area 903 holding the data displayed in the window 801 is secured.

Next, the user activates the document display program in the window 801 (step S705). Then, the application area 905 is secured in the memory 102, the document display program is read from the non-volatile memory 104 and executed, and the previously created document is displayed.

Next, the user opens another window 802.
Is opened (step S706). Data such as the position and size of the window is stored in the window system area 904, and the window data area 906 for holding the data displayed in the window 706 is secured.

Next, the user activates the document creation program in the window 802 (step S707). Then, the application area 906 is secured in the memory 102, and the document creation program is read from the non-volatile memory 104 and executed. And the user has window 8
While referring to the document displayed in 01, the document is created using the document creating program. FIG. 8 shows a state of the screen of the display device 105 at that time, and a window 802 is displayed.
Reference numeral 803 denotes a cursor indicating the position where the character input from the input device 106 is input next.

If the document creation is interrupted and the system power is turned off without using the resume function, the process shown in FIG. 10 is required.

That is, first, the document being created is stored in the non-volatile memory 104 (step S1001), then the document creation program is terminated (step S1002), and then the windows 801 and 802 are closed (step S100).
3) Then, the window system is terminated (step S1).
004), then the OS is terminated (step S1005),
Finally, it is necessary to turn off the power (step S1006).

However, when the resume function of this embodiment is used, the PSW 202 of the CPU 101,
The data of the general-purpose register groups 203 to 209, all the data of the memory 102 as shown in FIG. 9, the baud rate register of the control device 103, the data of the HD transfer mode register, and all the system states such as data are saved in the non-volatile memory 104. When the power is turned on, the data is read from the non-volatile memory 104, and the CPU 101 and the memory 102 are read.
The state of the control device 103 and the state of the control device 103 can be set to the state before the power was turned off, the work being performed at that time can be restarted, and the state save monitor means 114 monitors the save of the system state to the nonvolatile memory. By displaying the information, the user can know whether or not the data has been saved correctly, and when the data saving fails, it is possible to perform appropriate processing.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 11 is a block diagram of a system restart device according to the second embodiment. In FIG. 11, 101 is a CPU, 102 is a memory, 103 is a control device, 104 is a non-volatile memory, 105 is a display device, and 10 is a display device.
6 is an input device, 107 is a system end detecting means, 108
Is a system state save processing means, 110 is a system activation detection means, 111 is a system state reproduction processing means, 112 is a power switch, 113 is a power supply device, and 115 is a state reproduction monitoring means.

FIG. 2 is a diagram showing a register configuration inside the CPU 101. In FIG. 2, 201 is a program counter (PC), 202 is a processor status word (PSW) indicating the state of the CPU 101, and 203 to 209 are general purpose register groups each including 16 registers.

FIG. 3 is a diagram showing the internal structure of the PSW 202. In FIG. 3, 301 is a current window pointer (CWP) indicating which general register group of 203 to 209 is currently used, and 302 is the current CPU 101.
Current status (CS) indicating the mode state of
Reference numeral 3 is a preview status (PS) indicating the mode state of the CPU 101 when an interrupt occurs.

The operation of the system restart device configured as described above will be described below with reference to the drawings.

First, the operation when the CPU 101 is interrupted will be described. When interrupt occurs CP
U101 first increments the value of CWP301 by one and switches the general-purpose register group. Then, the value of PC201 at the time of the interrupt is copied to the 16th register of the general-purpose register group indicated by CWP301, and the value of CS302 is PS.
Copy to 303. Then, the process branches to the interrupt processing program designated in advance (the value of the PC 201 is rewritten). The interrupt processing program executes the interrupt return instruction at the end of the processing. When this instruction is executed, the CPU 101 first copies the value of PS303 to CS302 and branches to the address stored in the 16th register of the general-purpose register group indicated by CWP (rewrites the value of PC201). Finally, the CWP value is decreased by 1. At this point, the state of the CPU 101 returns to the state at the time when the interrupt occurred.

Next, the overall operation will be described. 12 is a flow chart showing a system state saving process, FIG. 13 is a flow diagram showing a system state reproducing process, and FIG. 6 is a nonvolatile memory 10.
4 is a data structure diagram showing the internal structure of FIG.

First, when the system end detecting means 107 detects that the power switch 112 is turned off, the CP
An interrupt signal for notifying U is output. Then, the CPU executes the above-described operation when the interrupt occurs, and the system state saving processing means 108 is called.

The system state save processing means 108 first copies the contents of the PSW 202 of the CPU 101 to the nonvolatile memory 1
04 in the PSW field 602 (step S
1201). Next, the general-purpose register group 203 of the CPU 101
To 209 are stored in the CPU register field 603 of the nonvolatile memory 104 (step S120).
2). Next, the contents of the memory 102 are stored in the nonvolatile memory 104.
Stored in the memory field 604 (step S12)
03).

Next, among the internal registers of the control device 103,
Registers required for status reproduction (for example, baud rate register for setting communication speed with input device 106, H for setting transfer with hard disk in synchronous mode)
The D transfer mode register) is stored in the controller register field 605 of the nonvolatile memory 104 (step S1204).

Next, 1 is set in the restartable flag field 601 of the nonvolatile memory 104 (step S1).
205).

Finally, a power OFF signal is sent to the power supply device 113 (S1206). In this state, the system power is off
It becomes a state. Next, when the power is turned on again, the power supply device 11
3, the system activation detection means 110 inputs a power-on reset signal to the CPU 101, and the system state reproduction processing means 111 is called.

The system state reproduction processing means 111 firstly restarts the restart flag field 6 of the nonvolatile memory 104.
It is determined whether 1 is set to 01 (step S501). If 1 has not been set, the system startup processing similar to that of the conventional computer system is performed (step S509). If 1 is set, the control device 103 is first initialized (step S5).
02).

Next, the contents stored in the controller register field 605 of the non-volatile memory 104 are read out and set in the corresponding register of the controller 103 (step S503). Next, the state reproduction monitoring means 115 again reads the contents stored in the control device register field 605 of the non-volatile memory 104, and the control device 1
Compare with the contents of the corresponding register of 03. If the contents are the same, "control register restoration completed" is displayed, and if the contents are different, "control register restoration unsuccessful" is displayed on the display device (step S1301).

Next, the system state reproduction processing means 111 reads out the data stored in the memory field 604 of the non-volatile memory 104 and stores it in the memory 102 (step S504). Next, the state reproduction monitoring means 115 compares the checksum of the contents of the memory field 604 of the non-volatile memory 104 with the checksum of the contents of the memory 102. If the contents are the same, "memory restoration completed" is displayed, and if the contents are different, "memory restoration is unsuccessful" is displayed on the display device (step S1302).

Next, the system state reproduction processing means 111 transfers the screen display data of the display device 105 stored in the memory 102 to the display device 105 to restore the screen state (step S505).

Next, the system state reproduction processing means 111 uses the CPU register field 603 of the non-volatile memory 104.
General-purpose register group 203 of the CPU 101 stored in
The data of ˜209 are read and set in the corresponding registers (step S506). Next, state reproduction monitoring means 1
Reference numeral 15 again reads the data of the general-purpose register groups 203 to 209 of the CPU 101, which is stored in the CPU register field 603 of the nonvolatile memory 104, and compares the contents with the corresponding registers. If the contents are the same, "general purpose register restoration completed" is displayed. If the contents are different, "general purpose register restoration unsuccessful" is displayed on the display device (step S1303).

Next, the system state reproduction processing means 111 reads out and sets the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 (step S507). Next, the state reproduction monitoring means 115 again uses the PSW 20 of the CPU 101 stored in the PSW field 602 of the nonvolatile memory 104 again.
The contents of 2 are read out, and the PSW 20 of the current CPU 101 is read.
Compare with the contents of 2. If the contents are the same, "PSW restoration is completed." If the contents are different, "PSW restoration is unsuccessful."
Is displayed on the display device (step S1304).

At this point, the state is the same as the state immediately before returning from the above-mentioned interrupt processing. Then, when the interrupt return instruction is finally executed, the state returns to the state when the interrupt is input from the system end detecting means 107 to the CPU 101 as in the interrupt processing (step S508).

Next, an example of how to use the present embodiment will be described with and without using the resume function. FIG. 8 is a flow chart showing the processing when the system is started up without using the resume function and a new sentence is created while referring to the previously created and saved sentence.
Is an image diagram showing a state of the screen of the display device 105 at that time. FIG. 9 is a data structure diagram showing the structure of data on the memory at that time. FIG. 10 is a flow chart when the document creation is interrupted and the system power is turned off without using the resume function.

First, when the power is turned on (step S70)
1), the operating system is a non-volatile memory 10
4 is read into the OS area 901 of the memory 102.
The OS area 901 also contains data such as a memory management table for managing the memory usage status and a process management table for managing the status of each program operating on the system.

Next, the user activates the window system (step S703). Then, the window system program is first transferred from the nonvolatile memory 104 to the memory 1
02 window system area 902.
The window system area stores data such as the number of windows displayed on the display device 105, the size and position of each window.

Next, the user opens a window 801 (step S704). Then, data such as the position and size of the window is displayed in the window system area 902.
And a window data area 903 for holding the data displayed in the window 801 are secured.

Next, the user activates the document display program in the window 801 (step S705). Then, the application area 905 is secured in the memory 102, the document display program is read from the non-volatile memory 104 and executed, and the previously created document is displayed.

Next, the user opens another window 802.
Is opened (step S706). Data such as the position and size of the window is stored in the window system area 904, and the window data area 906 for holding the data displayed in the window 706 is secured.

Next, the user activates the document creation program in the window 802 (step S707). Then, the application area 906 is secured in the memory 102, and the document creation program is read from the non-volatile memory 104 and executed. And the user has window 8
While referring to the document displayed in 01, the document is created using the document creation program (step S70).
8). FIG. 8 shows the state of the screen of the display device 105 at that time, and 803 in the window 802 is the input device 1 next.
It is a cursor indicating a position where a character input from 06 is input.

If the document creation is interrupted and the system power is turned off without using the resume function, the process shown in FIG. 10 is required. That is,
First, the document being created is stored in the non-volatile memory 104 (step S1001), then the document creation program is terminated (step S1002), and then the windows 801 and 80
2 must be closed (step S1003), the window system must be closed (step S1004), the OS must be closed (step S1005), and the power must be turned off (step S1006).

However, when the resume function of this embodiment is used, the PSW 202 of the CPU 101,
The data of the general-purpose register groups 203 to 209, all the data of the memory 102 as shown in FIG. 9, the baud rate register of the control device 103, the data of the HD transfer mode register, and all the system states such as data are saved in the non-volatile memory 104. When the power is turned on, the data is read from the non-volatile memory 104, and the CPU 101 and the memory 102 are read.
The state of the control device 103 and the state of the control device 103 can be set to the state before the power is turned off, the work being performed at that time can be resumed, and the restoration of the system state from the nonvolatile memory is monitored by the state restart monitoring means 115. By displaying the information, the user can know whether or not the data has been restored correctly, and when the data saving fails, it is possible to perform an appropriate process.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 14 shows claim 3.
FIG. 3 shows a block diagram of a system restart device in an embodiment of the described invention. In FIG. 14, 1401 is a state evacuation stop means, and the others are the same as in FIG. FIG. 15 is a flow chart showing the flow of the system state save processing of this embodiment, and FIG. 5 is a flow chart showing the system state reproduction processing. Next, the operation of this embodiment will be described.

When the power switch 112 is turned off, the first
The system state save processing means 108 is called in the same manner as in the above embodiment. The system state save processing unit 108 first stores the contents of the PSW 202 of the CPU 101 in the PSW field 602 of the non-volatile memory 104 (step S401).

Next, the state save monitoring means 114 is the CPU 10
1 PSW 202 contents and non-volatile memory 104 PS
The contents of the W field 602 are compared. If the contents are the same, "PSW storage completed", and if the contents are different, "PS"
"W was unsuccessfully stored" is displayed on the display device (step S402). Next, the state evacuation stop means 1401 determines the test result (step S1501), and if the contents are the same, the process proceeds to step S403. If not, the process returns from the interrupt process and returns to the state before the power switch 112 was pressed (step S1505).

Next, when the contents of the test in step S1501 are the same, the system state saving processing means 108 determines that the CPU1
The contents of the general-purpose register groups 203 to 209 of 01 are stored in the CPU register field 603 of the non-volatile memory 104 (step S403). Next, the state evacuation monitoring means 11
4 compares the contents of the general-purpose register groups 203 to 209 of the CPU 101 with the contents of the CPU register field 603 of the non-volatile memory 104. If the contents are the same, "storage of general purpose register completed" is displayed, and if the contents are different, "storage of general purpose register unsuccessful" is displayed on the display device (step S404).

Next, the state evacuation stop means 1401 determines the test result (step S1502), and if the contents are the same, the process proceeds to step S405. If the contents are different, the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 are read and set (step S1506).

Next, the interrupt processing is resumed, and the state before the power switch 112 is pressed is returned (step S150).
5). Next, if the contents are the same in the test of step S1502, the system state save processing unit 108 changes the contents of the memory 102 to the memory field 604 of the nonvolatile memory 104.
(Step S405).

Next, the state save monitoring means 114 is used for the memory 10
The checksum of the contents of 2 and the checksum of the contents of the memory field 604 of the non-volatile memory 104 are compared. If the contents are the same, "memory storage is completed" is displayed, and if the contents are different, "memory storage is unsuccessful" is displayed on the display device (step S406).

Next, the state evacuation stop means 1401 determines the test result (step S1503), and if the contents are the same, the process proceeds to step S407. If the contents are different, the CPU register field 603 of the non-volatile memory 104
General-purpose register group 203 of the CPU 101 stored in
The data of ˜209 is read and set in the corresponding register (step S1507). Next, the CP stored in the PSW field 602 of the nonvolatile memory 104
The contents of the PSW 202 of U101 are read and set (step S1506).

Next, the interrupt processing is restored, and the state before the power switch 112 is pressed is returned (step S150).
5).

Next, if the contents of the test in step S1503 are the same, the system state save processing means 108 has the internal register of the control device 103 which is necessary to reproduce the state (for example, the baud rate for setting the communication speed with the input device 106). A register, an HD transfer mode register for setting whether or not the transfer with the hard disk is performed in the synchronous mode) is stored in the controller register field 605 of the nonvolatile memory 104 (step S407).

Next, the state evacuation monitoring means 114 is the controller 1
Of the 03 internal registers, the contents of the registers necessary for state reproduction are compared with the contents of the controller register field 605 of the non-volatile memory 104. If the contents are the same, "control register storage completed" is displayed, and if the contents are different, "control register storage unsuccessful" is displayed on the display device (step S408).

Next, the state evacuation stop means 1401 determines the test result (step S1504), and if the contents are the same, the process proceeds to step S409. If the contents are different, the data stored in the memory field 604 of the nonvolatile memory 104 is read out and stored in the memory 102 (step S1508). Next, C of the nonvolatile memory 104
CPU stored in PU register field 603
The data of the general-purpose register groups 203 to 209 of 101 are read and set in the corresponding registers (step S15).
07). Then, the PSW 202 of the CPU 101 stored in the PSW field 602 of the nonvolatile memory 104.
Is read and set (step S150).
6). Next, return from interrupt processing, and turn on the power switch 11
The state before pressing 2 is returned (step S1505).

Next, when the contents are the same in the test of step S1504, the system state save processing means 108 sets 1 in the restartable flag field 601 of the nonvolatile memory 104.
Is set (step S409). Finally, the system state save processing means 108 sends a power OFF signal to the power supply device 113 (S410). In this state, the system is powered off
It becomes the F state. Next, when the power is turned on again, the same processing as in the first embodiment is performed.

As described above, according to this embodiment, the saving of the system state to the non-volatile memory is monitored, the user is informed whether the saving of the data was not correctly performed, and the saving of the data is also performed. If the operation is not performed correctly, the state save stopping unit 1401 returns to the state before the power switch was pressed, and the user can return to the previous state again and perform appropriate processing even if erroneous data is saved. Will be possible.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 16 shows claim 4.
FIG. 3 shows a block diagram of a system restart device in an embodiment of the described invention. In FIG. 16, reference numeral 1601 denotes the evacuation confirmation determining means, and the others are the same as in FIG. FIG. 17 is a flow chart showing the flow of the system state save processing of this embodiment, and FIG. 5 is a flow chart showing the system state reproduction processing. Next, the operation of this embodiment will be described.

When the power switch 112 is turned off, the third
The system state save processing means 108 is called in the same manner as in the above embodiment.

First, as in the third embodiment, the system state save processing means 108 performs step S401, and the state save monitoring means 114 performs step S402. Next, the state evacuation stop means 1401 carries out step S1501. If the contents are the same according to the determination of the test result therein, the process proceeds to step S403, and if the contents are different, the evacuation confirmation determination means 1601 continues the process. Is output to the display device 105 to wait for the user's input (step S1701). The user inputs the input device 106.
If YES is input from, the process proceeds to step S403. If the user inputs NO, the process returns from the interrupt process and returns to the state before the power switch 112 was pressed (step S1505).

Next, if the contents are the same in the test in step S1501, or if the user inputs YES from the input device 106 in step S1701 and ignores the erroneous data being saved, the third embodiment is executed. Similarly, the system state save processing means 108 performs step S403, and the state save monitoring means 114 performs step S404. Next, the state evacuation stop means 1401 carries out step S1502. If the contents are the same according to the determination of the test result therein, the process proceeds to step S405, and if the contents are different, the evacuation confirmation determination means 1601 continues the process. Is output to the display device 105 and waits for the user's input (step S1702).

If the user inputs YES from the input device 106, the process proceeds to step S405. If the user inputs NO, PS of the non-volatile memory 104
P of the CPU 101 stored in the W field 602
The contents of SW202 are read and set (step S
1506). Next, the process returns from the interrupt process and returns to the state before the power switch 112 is pressed (step S150).
5).

Next, if the contents are the same in the test in step S1502, or if the user inputs YES from the input device 106 in step S1702 and ignores the erroneous data being saved, the third embodiment is performed. Similarly, the system state save processing means 108 performs step S405, and the state save monitoring means 114 performs step S406. Next, the state evacuation stop means 1401 carries out step S1503, and if the contents are the same according to the determination of the test result therein, the process proceeds to step S407, and if the contents are different, the evacuation confirmation determination means 1601 continues the process Is output to the display device 105 and the input by the user is awaited (step S1703).

When the user inputs YES from the input device 106, the process proceeds to step S407. If the user inputs NO, the CPU of the non-volatile memory 104
CPU 10 stored in register field 603
The data of one general-purpose register group 203 to 209 is read out and set in the corresponding register (step S150).
7). Then, the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 are read and set (step S1506).
Next, the process returns from the interrupt process and returns to the state before the power switch 112 was pressed (step S1505).

Next, if the contents are the same in the test in step S1503, or if the user inputs YES from the input device 106 in step S1703 and ignores that incorrect data has been saved, the third embodiment is performed. Similarly, the system state save processing means 108 performs step S407, and the state save monitoring means 114 performs step S408. Next, the state evacuation stop means 1401 carries out step S1504, and if the contents are the same according to the determination of the test result therein, the process proceeds to step S409, and if the contents are different, the evacuation confirmation decision means 1601 continues the process Is output to the display device 105 and the input by the user is awaited (step S1704).

If the user inputs YES from the input device 106, the process proceeds to step S409. If the user inputs NO, the data stored in the memory field 604 of the non-volatile memory 104 is read out and stored in the memory 102 (step S1508). Then, the CPU register field 6 of the nonvolatile memory 104.
General purpose register group 2 of the CPU 101 stored in 03
The data of 03 to 209 are read and set in the corresponding registers (step S1507). Then, the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 are read and set (step S1506). Next, the process returns from the interrupt process and returns to the state before the power switch 112 was pressed (step S1505).

Next, if the contents are the same in the test of step S1504, or if the user inputs YES from the input device 106 in step S1704 and ignores the erroneous data being saved, the system state save processing means 1
08 sets 1 in the restartable flag field 601 of the nonvolatile memory 104 (step S409). Finally, the system state save processing means 108 is the power supply device 11
A power OFF signal is sent to 3 (S410). In this state, the system is turned off.

Next, when the power is turned on again, the same processing as in the third embodiment is performed. As described above, according to the present embodiment, the saving of the state of the system to the non-volatile memory is monitored, and when the saving of the data is not correctly performed, the saving confirmation judging means 1601 determines whether or not the processing is continued. Depending on the user's input, the user can freely select whether to perform appropriate processing for saving the wrong data or ignore it and continue the saving processing as it is. It will be possible.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 18 shows claim 5.
FIG. 3 shows a block diagram of a system restart device in an embodiment of the described invention. In FIG. 18, reference numeral 1801 is a state reproduction stopping means, and the others are the same as in FIG.
FIG. 12 is a flowchart showing the flow of the system state save processing of this embodiment, and FIG. 19 is a flowchart showing the system state reproduction processing. Next, the operation of this embodiment will be described.

First, when the power is turned off, the same processing as in the second embodiment is performed. Next, the power switch 112 is turned off again.
When the answer is N, the system state reproduction processing means 111 is called as in the second embodiment. The system state reproduction processing unit 111 first determines whether 1 is set in the restart flag field 601 of the non-volatile memory 104 (step S501). If 1 has not been set, the system startup processing similar to that of the conventional computer system is performed (step S509). If 1 is set, the control device 103 is first initialized (step S502).

Next, the contents stored in the controller register field 605 of the non-volatile memory 104 are read out and set in the corresponding register of the controller 103 (step S503). Next, the state reproduction monitoring means 115 again reads the contents stored in the control device register field 605 of the non-volatile memory 104, and the control device 1
Compare with the contents of the corresponding register of 03. If the contents are the same, "control register restoration completed" is displayed, and if the contents are different, "control register restoration unsuccessful" is displayed on the display device (step S1301). Next, the state reproduction stopping means 1801 determines the test result (step S190).
1) If the contents are the same, the process proceeds to step S504, and if the contents are different, the system activation processing similar to that of the conventional computer system is performed (step S509).

Next, if the contents of the test in step S1301 are the same, the system state reproduction processing means 111 reads out the data stored in the memory field 604 of the non-volatile memory 104 and stores it in the memory 102 (step S504). Next, the state reproduction monitoring means 115 compares the checksum of the contents of the memory field 604 of the non-volatile memory 104 with the checksum of the contents of the memory 102. If the contents are the same, "memory restoration completed" is displayed, and if the contents are different, "memory restoration is unsuccessful" is displayed on the display device (step S1302). Next, the state reproduction stopping means 1801 determines the test result (step S190).
2) If the contents are the same, the process proceeds to step S505, and if the contents are different, the system activation processing similar to that of the conventional computer system is performed (step S509).

Next, if the contents of the test in step S1302 are the same, the system state reproduction processing means 111 determines that the memory 1
The screen display data of the display device 105 stored in 02 is transferred to the display device 105 to restore the screen state (step S505).

Next, the system state reproduction processing means 111 causes the CPU register field 603 of the non-volatile memory 104.
General-purpose register group 203 of the CPU 101 stored in
The data of ˜209 are read and set in the corresponding registers (step S506). Next, state reproduction monitoring means 1
Reference numeral 15 again reads the data of the general-purpose register groups 203 to 209 of the CPU 101, which is stored in the CPU register field 603 of the nonvolatile memory 104, and compares the contents with the corresponding registers. If the contents are the same, "general purpose register restoration completed" is displayed. If the contents are different, "general purpose register restoration unsuccessful" is displayed on the display device (step S1303). Next, the state reproduction stopping means 1801 discriminates the test result (step S1903). If the contents are the same, the process proceeds to step S507. If the contents are different, the system activation process similar to the conventional computer system is performed (step S509). ).

Next, if the contents are the same in the test of step S1303, the system state reproduction processing means 111 reads and sets the contents of the PSW 202 of the CPU 101 stored in the PSW field 602 of the non-volatile memory 104 (step S507). Next, state reproduction monitoring means 1
15 is again the PSW field 6 of the nonvolatile memory 104.
The content of the PSW 202 of the CPU 101 stored in 02 is read and compared with the current content of the PSW 202 of the CPU 101. If the contents are the same, "Restore PSW is complete"
If the contents are different, "unsuccessful PSW restoration" is displayed on the display device (step S1304). Next, the state reproduction stopping means 1801 determines the test result (step S1904). If the contents are the same, the process proceeds to step S508, and if the contents are different, the system start-up process similar to that of the conventional computer system is performed (step S50).
9).

If the contents of the test in step S1304 are the same, the state is the same as the state just before returning from the above-mentioned interrupt processing at this point. Then, when the interrupt return instruction is finally executed, the state returns to the state when the interrupt is input from the system end detecting means 107 to the CPU 101 as in the interrupt processing (step S508).

As described above, according to the present embodiment, the restoration of the system state from the non-volatile memory is monitored, the user is informed whether the restoration of the data was not correctly performed, and the restoration of the data is not performed. When it is not performed correctly, the state reproduction stop means 1801 stops the restoration of the system state from the non-volatile memory, performs the same system start-up process as the conventional computer system, and prevents the reproduction of the system state due to erroneous data. It will be possible.

(Embodiment 6) Next, a sixth embodiment of the present invention will be described with reference to the drawings. FIG. 20 shows claim 6.
FIG. 3 shows a block diagram of a system restart device in an embodiment of the described invention. In FIG. 20, reference numeral 2001 is a reproduction confirmation determination means, and other parts are the same as in FIG.
FIG. 12 is a flow chart showing the flow of the system state save processing of this embodiment, and FIG. 21 is a flow chart showing the system state reproduction processing. Next, the operation of this embodiment will be described.

First, when the power is turned off, the same processing as in the fifth embodiment is performed. Next, the power switch 112 is turned off again.
When the answer is N, the system state reproduction processing means 111 is called as in the fifth embodiment. First, as in the case of the fifth embodiment, the system state reproduction processing means 111 causes the step S50.
1, step S502, step S503, the state reproduction monitoring means 115 performs step S1301. Next, the state reproduction stopping means 1801 performs step S1901,
If the contents are the same according to the determination of the test result, the process proceeds to step S504. If the contents are different, the reproduction confirmation determining unit 2001 outputs a message inquiring whether or not to continue the process to the display device 105, and the user Waits for input (step S2101). The user inputs the input device 10
If YES is input from 6, the process proceeds to step S504. If the user inputs NO, the system startup processing similar to that of the conventional computer system is performed (step S509).

If the contents of the test are the same in step S1301, or if the user inputs YES from the input device 106 in step S2101 and ignores the restoration of erroneous data, then the fifth embodiment is used. Similarly, the system state reproduction processing unit 111 performs step S504, and the state reproduction monitoring unit 115 performs step S1302. Next, the state reproduction stopping means 1801 carries out step S1902. If the contents are the same according to the judgment of the test result, the process proceeds to step S505, and if the contents are different, the reproduction confirmation judging means 2001 continues the processing. Is output to the display device 105 and the input by the user is awaited (step S2102). If the user inputs YES from the input device 106, the process proceeds to step S505. If the user inputs NO, the system startup processing similar to that of the conventional computer system is performed (step S509).

Next, if the contents of the test are the same in the step S1302, or if the user inputs YES from the input device 106 in step S2102 and ignores the restoration of erroneous data, it is the same as the fifth embodiment. Similarly, the system state reproduction processing means 111 performs step S505 and step S506, and the state reproduction monitoring means 115 performs step S13.
Do 03. Next, the state reproduction stopping means 1801 carries out step S1903, and if the contents are the same according to the judgment of the test result therein, the process proceeds to step S507, and if the contents are different, the reproduction confirmation judging means 2001 continues the processing. A message for inquiring about the display device 105
And waits for user input (step S210).
3). If the user inputs YES from the input device 106, the process proceeds to step S507. User is NO
If is input, system startup processing similar to that of the conventional computer system is performed (step S509).

Next, in the case where the contents are the same in the test of step S1303, or when the user inputs YES from the input device 106 in step S2103 and ignores the restoration of erroneous data, it is the same as the fifth embodiment. Similarly, the system state reproduction processing means 111 performs step S507, and the state reproduction monitoring means 115 performs step S1304. Next, the state reproduction stopping means 1801 performs step S1904, and if the contents are the same according to the determination of the test result therein, the process proceeds to step S508, and if the contents are different, the reproduction confirmation judging means 2001 continues the process. Is output to the display device 105, and the input by the user is awaited (step S2104). Next, if the user inputs YES from the input device 106, the state reproduction stopping means 1801 moves to the processing of step S508. If the user inputs NO, the system startup process similar to that of the conventional computer system is performed (step S50).
9).

If the contents are the same in the test in step S1304, or if the user inputs YES from the input device 106 in step S2104 and ignores the restoration of the erroneous data, the interrupt processing described above is performed at this point. It will be the same as it was just before returning. Then, when the interrupt return instruction is finally executed, the state returns to the state when the interrupt is input from the system end detecting means 107 to the CPU 101 as in the interrupt processing (step S508).

As described above, according to the present embodiment, the restoration of the system state from the non-volatile memory is monitored, and when the restoration of the data is not performed correctly, the reproduction confirmation judging means 2001 continues the processing. Whether to restore incorrect system data by prompting the user to stop the restoration of the system state from the non-volatile memory and perform the same system boot process as the conventional computer system The user can freely select whether to ignore it and continue the reproduction process as it is.

[0129]

As described above, according to the present invention, by providing the means for displaying the information on the saving or reproducing of the system state to the user, the user can determine whether or not to continue saving or reproducing the system state. Can perform an appropriate process according to the situation, and can perform a highly reliable resume operation.

[Brief description of drawings]

FIG. 1 is a block diagram of a system restart device according to a first embodiment of the present invention.

FIG. 2 is an internal configuration diagram of a CPU of the same embodiment.

FIG. 3 is an internal configuration diagram of a PSW of the CPU of the embodiment.

FIG. 4 is a flowchart showing the operation of a system state save process of the embodiment.

FIG. 5 is a flowchart showing an operation of system state reproduction processing of the embodiment.

FIG. 6 is a data structure diagram of the nonvolatile memory of the same embodiment.

FIG. 7 is a flowchart showing a process when the system is started and a document is created without using the resume function in the embodiment.

FIG. 8 is an image diagram of a screen of a display device when creating a document in the embodiment.

FIG. 9 is a data structure diagram of a memory when creating a document in the embodiment.

FIG. 10 is a flowchart showing the processing when the system is terminated without using the resume function in the embodiment.

FIG. 11 is a block diagram of a system restart device according to a second embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of a system state save process of the embodiment.

FIG. 13 is a flowchart showing the operation of system state reproduction processing according to the embodiment.

FIG. 14 is a block diagram of a system restart device according to a third embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the system state save processing of the embodiment.

FIG. 16 is a block diagram of a system restart device according to a fourth embodiment of the present invention.

FIG. 17 is a flowchart showing the operation of the system state save processing of the embodiment.

FIG. 18 is a block diagram of a system restart device according to a fifth embodiment of the present invention.

FIG. 19 is a flowchart showing the operation of the system state reproduction process of the embodiment.

FIG. 20 is a block diagram of a system restart device according to a sixth embodiment of the present invention.

FIG. 21 is a flowchart showing the operation of system state reproduction processing of the embodiment.

FIG. 22 is a block diagram of a conventional system restart device.

FIG. 23 is a flowchart showing the operation of the conventional example.

FIG. 24 is a block diagram of a conventional system restart device.

[Explanation of symbols]

 101 CPU 102 Memory 103 Control Device 104 Nonvolatile Memory 105 Display Device 106 Input Device 107 System End Detection Unit 108 System State Saving Processing Unit 110 System Startup Detection Unit 111 System State Reproduction Processing Unit 112 Power Switch 113 Power Supply Device 114 State Saving Monitoring Unit 1101 state reproduction monitoring means 1401 state evacuation stop means 1601 evacuation confirmation determination means 1801 state reproduction stop means 2001 reproduction confirmation determination means

Claims (5)

[Claims] 1. A system restart in which the system state of a CPU, a memory, a control device, etc. is saved in a storage means at the time of system termination, and the state at the time of system termination is reproduced at the next startup based on the information in the storage means. A device, comprising state saving monitor means for monitoring the saving of the system state to the storage means, and state save stopping means for stopping the save of the system state based on the information obtained by the state save monitoring means. A system restart device characterized by being provided. 2. The evacuation confirmation determining means for displaying the information obtained by the state evacuation monitoring means on a display device and selecting whether or not to activate the state evacuation stopping means. System restart device. 3. A system restart in which the system state of a CPU, a memory, a control device, etc. is saved in a storage means at the time of system termination, and the state at the time of the system termination is reproduced based on information in the storage means at the next startup. An apparatus, comprising state reproduction monitoring means for monitoring the reproduction of the system state from the storage means, and state reproduction stopping means for stopping the reproduction of the system state based on the information obtained by the state reproduction monitoring means. A system restart device characterized by being provided. 4. A state reproduction monitoring means for monitoring the reproduction of the system state from the storage means, and a state reproduction stopping means for stopping the reproduction of the system state based on the information obtained by the state reproduction monitoring means. The system restart device according to claim 1 or 2, characterized in that 5. A reproduction confirmation judging means for displaying the information obtained by the status reproduction monitoring means on a display device and for selecting whether or not to start the status reproduction stopping means. The system restart device according to claim 4.