JPH02161522A - Memory content changing system - Google Patents

Abstract

PURPOSE:To simultaneously change plural positions in the contents stored in a memory device and to eliminate the posibility to generate logical contradiction due to the change of only a part by providing an information processing system with a memory contents changing command registering means and a registered command executing means. CONSTITUTION:A register part 12 and a command register table 21 are respec tively provided in a processor 1 and a memory device 2 as the memory contents changing command registering means 200, an execution part 15 is provided in the processor 1 as the registered command executing means 300 and a confirming part 13 and a deletion part 14 are provided in the processor 1 and an address register table 22 is provided in the device 2 as changed contents confirming means 400. The means 200 successively registers a stored contents changing command to be inputted to request the change of the stored contents in the device 2 for storing a program to be executed by the information processing system 100. The means 300 receives a command for executing the changing command and executes all the changing commands registered in the means 200.

Description

[Detailed Description of the Invention] [Summary] Regarding a storage content change method in an information processing system using a storage program control method that performs real-time processing, even when changing multiple locations of storage content, the information processing system can be executed normally. For the purpose of making time processing executable, and for the purpose of preventing malfunctions caused by erroneous changes, to request changes to the memory contents of the storage device that stores the programs executed by the information processing system. A memory content change command registration means that sequentially registers input memory content change commands, and a memory content change command registration means that registers all registered memory content change commands in the memory content change command registration means when a memory content change execution command requesting execution of a memory content change command is received. In addition to the above-mentioned memory content change command registration means and registered command execution means, a registered command execution means for successively executing all memory content change commands is provided. When a change content confirmation command to be confirmed in advance is received, the memory content to be changed is extracted, and a memory content change command registered in the content change command registration means is executed on the extracted memory content. ,
The system is further configured to include a change confirmation means for outputting execution results.

[Industrial application field]

The present invention relates to a storage content changing method in an information processing system using a storage program control method that performs real-time processing.

For example, in an information processing system that performs real-time processing, such as a storage program control type electronic exchange, while executing real-time processing such as call processing, the stored contents such as programs or data stored in a storage device are It becomes necessary to change.

In such a case, it is desired to execute the process of changing the stored contents without stopping the operation of the storage program control type information processing system.

[Conventional technology]

FIG. 9 is a diagram showing an example of a conventional information processing system, FIG. 1O is a diagram showing an example of the storage content change process in FIG. It is a diagram.

In FIGS. 9 to 11, the program MP stored in the storage device 2 constituting the information processing system is
It is assumed that the data set by the memory content MP having the start address a is determined based on the memory content MP2 having the start address a2.

Such memory contents MP and MP2 will be changed to memory contents AP and AP2, respectively.Hereinafter, MP and MP2 will be referred to as the memory contents before change, and Al)1 and AP will be referred to as the memory contents after change, and MP will be the object of change. When it becomes necessary for the changed memory content Apz to determine the data set by the changed memory content AP+, the change requester first changes the pre-change memory content MP. , when a storage content change command MAT specifying the start address a1 and change data is input, the change unit 11 provided in the processing device 1 executes the reception process of the storage content change command MAT, step S1 in FIG. 1O. followed by the accepted memory content change command MAT,
After making a predetermined change to the pre-change storage content MP based on the above, and changing it to the post-change storage content AP (step 51
2) The changed storage content AP is output to the display 4 via the input/output control device 3 (step 513).

While the changing unit 11 executes the above storage content modification process, the processing device 1 temporarily suspends real-time processing, but when the storage content modification process ends, the processing device 1 resumes the interrupted real-time processing again.

The person making the change observes the changed memory content AP output on the display 4 and determines that the change has been made correctly.Then, in order to change the pre-change memory content MP, the person changes the memory content AP and specifies the start address a1 and the changed data. Content change command MAT
, the change unit 11 provided in the processing device 1 changes the storage content before change MP, through the same process as described above.
A predetermined change is made to the changed stored content AP.

However, after the pre-change memory content MP is changed to the post-change memory content AP, only the pre-change memory content MP is changed to the post-change memory content AP until the pre-change memory content MPt is changed. When the changed program MP is executed, the changed storage contents AP.

The data set by is changed to the stored content MP.

There is a possibility that a logical contradiction will occur between the memory content after change AP1 and the memory content before change MP, and real-time processing will not be executed normally and the information processing system may stop. There is also.

[Problem to be solved by the invention]

As is clear from the above explanation, in conventional storage content modification methods, when it becomes necessary to modify multiple parts of the program MP to be modified (pre-modification storage content MP and MPz), the person making the modification must first Memory content change command M
AT, is input to change a part (pre-change memory content MP,'), then the memory content change command MAT! Since the other part (memory contents before change MP!) must be changed by inputting There is also a risk that it may stop functioning.

In addition, after changing the pre-change memory content MP and MP2 to the post-change memory content AP and AP, the person making the change confirms the change result on the display 4, etc., so if there is an error in the post-change memory content AP or AP2, If detected, an incorrect change has already been made to the program MP to be changed.
There was a risk that the information processing system would malfunction.

An object of the present invention is to enable an information processing system to normally execute real-time processing even when multiple locations of memory contents are changed, and to prevent malfunctions caused by erroneous changes. With the goal.

[Means to solve the problem]

FIG. 1 is a diagram showing the principle of the present invention.

In FIG. 1, reference numeral 100 is an information processing system using a stored program control method, which is a subject of the present invention, and 2 is a storage device that stores programs to be executed by the information processing system 100.

Reference numeral 200 denotes a storage content change command registration means provided in the information processing system 100 according to the present invention.

3bO is a registration command execution means provided in the information processing system 100 according to the present invention.

Reference numeral 400 denotes a change confirmation means provided in the information processing system 100 according to the present invention.

[Effect]

The storage content change command registration means 200 is a storage device 2 that stores programs executed by the information processing system 100.
Memory content change commands input to request changes to the memory content of are sequentially registered.

When the registered command execution means 300 receives a memory content change execution command requesting execution of a memory content change command, the registered command execution means 300 continuously executes all the memory content change commands registered in the memory content change command registration means 200. do.

Further, when receiving a change content confirmation command for confirming in advance the execution result of a memory content change command inputted from the outside, the change content confirmation means 400 extracts the memory content to be changed, and registers the memory content change command. The storage content changing command registered in the means 200 is executed on the extracted storage content, and the execution result is output.

Therefore, by providing the information processing system with storage content change command registration means and registered command execution means,
Multiple locations of the memory contents of the storage device are also changed at the same time, eliminating the possibility of logical contradictions occurring due to only some changes being made, and allowing the information processing system to perform real-time processing normally. It becomes possible to continue.

In addition, by further providing a change confirmation means in the information processing system, it becomes possible to check the change result before actually changing the stored contents, and it becomes possible to prevent malfunctions caused by erroneous changes, and the information processing system Real-time processing can continue normally.

〔Example〕

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

FIG. 2 is a diagram showing an information processing system according to an embodiment of the present invention, FIG. 3 is a diagram illustrating the command input order in FIG. 2, and FIG. 4 is a diagram illustrating the registration process in FIG. 2. 5 is a diagram illustrating the change confirmation process in FIG. 2, FIG. 6 is a diagram illustrating the registration deletion process in FIG. 2, and FIG. 7 is a diagram illustrating the change content confirmation process in FIG. 8 is a diagram illustrating a change execution process, and FIG. 8 is a diagram illustrating an output for confirming the change content in FIG. 2. FIG.

Note that the same reference numerals indicate the same objects throughout the figures.

In FIG. 2, a registration unit 12 is provided in the processing device 1 as the storage content change command registration means 200 in FIG. 1, and a command registration table 21 is provided in the storage device 2. An execution unit 15 is provided in the processing device 1 as a registered command execution unit 300 in FIG. Each is provided within the storage device 2.

2 to 8, pre-change storage contents MP of the change target program MP stored in the storage device 2,
If it becomes necessary to change the data set by the memory content before change MP2 to the data set by the memory content after change APt as determined by the memory content after change APt, the change requester may change A memory content change command MAT that specifies the start address a1 and change data to change the previous memory content MP, and a memory content before change MP.
2, the start address a2 and the storage content change command MAT2 specifying the changed data are sequentially input (steps S21 and 522 in FIG. 3).

In the processing device l, the registration unit 12 receives the memory content change commands MAT and MA input from the display 4.
When T2 is received, it is registered in the command registration table 21 provided in the storage device 2 in the order of input (step 531 in FIG. 4).

Next, the changer inputs the memory content change command MAT.
, and MAT, a change content confirmation command MCH is input from the display 4 (step 523 in FIG. 3).

In the processing device 1, when the confirmation unit 13 receives the change content confirmation command MCH input from the display 4, the confirmation unit 13 selects the stored content change command MAT that has been registered first in the command registration table 21.

Step 541) in FIG. 5, extract the first address a included in the extracted storage content change command MAT, step 542), and then extract address registration table 2.
2, if the start address a1 is not already registered in the address registration table 22, the start address a
, is registered in the address registration table 22 (steps S43 and 344), the memory content before change MP is extracted from the program MP to be changed, and the memory content change command M
After generating the changed memory content AP by executing AT, the pre-change memory content M of the program MP to be changed is generated.
The changed memory content AP is stored in another storage area 23 in the storage device 2 without directly changing P, and the changed memory content AP is stored following the start address a registered in the address registration table 22. The number of words w1 of the content AP, and the start address a of the changed storage content AP stored in the storage area 23
, is registered (step 545).

After completing the process related to the memory content change command MAT, the confirmation unit 13 again checks the command registration table 21.
When it is determined that the memory content change command MAT2 is still registered (step 546), the memory content change command MAT2 is retrieved from the command registration table 21.
By extracting the memory content change command MAT and executing the steps S41 to S45 in the same way as for the memory content change command MAT, the memory content MP before change is added to the address registration table 22.
, register the start address a2 of , and also register the memory content M before change.
By executing the memory content change command MAT8 on P, a changed memory content APz is generated and stored in the storage area 23, and the changed memory content AP! Number of words W! , and the starting address a1 of the changed storage content A P t in the storage area 23! Store.

Next, as a result of referring to the command registration table 21, the confirmation unit 13 confirms that there is no registered memory content change command (step 546). AP and AP are extracted and output to the display 4 via the input/output control device 3 (step 547).

The changer examines the changed storage contents AP and AP output to the display 4 and confirms whether or not the desired changes have been made (step 524). For example, the changed storage contents A Pt When it is detected that there is an error in the memory content change command MAT! A change request deletion command MCN specifying is input from the display 4 (step 525 in FIG. 3).

In the processing device 1, when the deletion unit 14 receives the change request deletion command MCN input from the display 4, it selects the storage content change command specified by the change request deletion command MCN from the command registration table 21 in the storage device 2. MAT, is deleted (Step 551 in Figure 6)
.

Next, the person making the change inputs the memory content change command MATt, which corrects the error, from the display 4 (step 526 in FIG. 3), and then inputs the change content confirmation command MCH (step 523). After registering the memory content change command MAT,c in the command registration table 21 by the same process as (step 53 in FIG. 4)
1), memory content change command MAT, and MATtc
Execute the change confirmation process shown in Figure 5 regarding
After changing the memory contents AP and AP, display 4
Output to.

The person making the change examines the changed storage contents AP and AP that are output to the display 4, and confirms that the desired change has been made this time (step 524), and then changes the program MP to be changed. Previous memory contents MP, and MP
Memory contents AP1 and AP after changing z! , a change execution command MEX is input from the display 4 (step 527 in FIG. 3).

In the processing device 1, when the execution unit 15 receives the change execution command MEX inputted from the display 4, the execution unit 15 writes the change execution command MEX in the command registration table 21! By extracting and executing the first registered memory content change command MAT, a post-change memory content AP1 is generated, and a pre-change memory content MP,
After changing the memory content AP, to the changed memory content AP (step 561 in FIG. 7), the next registered memory content change command MAT,c is extracted from the command registration table 21, and the memory content before the change is changed in the same way as described above. After changing the content MP, change it to the memory content AP, c (Step 561), all memory content change commands M registered in the command registration table 21
When it is confirmed that the execution of AT and MATtc has been completed (step 562), the modification regarding the storage content modification commands MAT and MATte for the program MP to be modified is completed.

As is clear from the above description, according to this embodiment, the person who modifies the program to be modified MP inputs the storage content modification commands M A T + and MAT corresponding to the modified portion, and then inputs the modification content confirmation command M By inputting CH, it becomes possible to observe the changed storage contents AP and AP without changing the change target program MP, and execute the change request deletion command MCN and the storage contents change command M A T 2 C as necessary. After inputting the changes, correcting the errors, and confirming the correct memory contents AP and APtc, the change execution command MEX is input to change the changed parts all at once. MP is the memory content AP after change.

and APtc all at once, making it possible to execute real-time processing without logical contradictions.

In addition, since it becomes possible to observe the changed memory content AP and AP2 before actually making changes to the program MP to be changed, there is a risk that the information processing system may be changed to the incorrect changed memory content AP2, causing malfunction of the information processing system. will also disappear.

Note that FIGS. 2 to 8 are only one embodiment of the present invention, and for example, the processing device 1 is not limited to being equipped with the confirmation section 13, but also includes the registration section 12, deletion section 14, and Although many other modifications may be considered, such as providing only the execution unit 15, the effects of the present invention remain the same in either case. Furthermore, it goes without saying that the information processing system 100 to which the present invention is applied is not limited to what is illustrated.

〔Effect of the invention〕

As described above, according to the present invention, in the information processing system, by providing the information processing system with the storage content change command registration means and the registration command execution means, the storage contents of the storage device can be changed at a plurality of locations at the same time. There is no possibility of a logical contradiction occurring due to only a part of the information being changed, and the information processing system can continue normal real-time processing.

In addition, by further providing a change confirmation means in the information processing system, it becomes possible to check the change result before changing the iQ contents, making it possible to prevent malfunctions caused by erroneous changes, and to ensure that the information processing system is functioning normally. It becomes possible to continue real-time processing.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing an information processing system according to an embodiment of the present invention, FIG. 3 is a diagram illustrating the command input order in FIG. 2, and FIG. Second
5 is a diagram illustrating the change content confirmation process in FIG. 2, FIG. 6 is a diagram illustrating the registration deletion process in FIG. 2, and FIG. 7 is a diagram illustrating the registration deletion process in FIG. A diagram illustrating the change execution process, FIG. 8 is a diagram illustrating the output for confirming the change content in FIG. 2, FIG. 9 is a diagram illustrating an example of a conventional information processing system, and FIG. 10 is a diagram showing the memory in FIG. FIG. 11 is a diagram illustrating an example of a content change process. In the figure, 1 is a processing device, 2 is a storage device, 3 is an input/output control device, 4 is a display, 11 is a change section, 12 is a registration section, 13 is a confirmation section, 14 is a deletion section, 15 is an execution section, 2
1 is a command registration table, 22 is an address registration table, 23 is a storage area, 100 is an information processing system, 20
0 is a storage content change command registration means, and 300 is a registered command execution *e ha no hara f rizono 1st figure. Figure 2: 2 pieces (throw λ11I!! Introduction) Iy2f2111: Output 1 for each of the 4 types in the 81st branch history

Claims (2)

[Claims] (1) In an information processing system (100) using a storage program control method that performs real-time processing, in order to request a change in the storage contents of a storage device (2) that stores programs executed by the information processing system (100). a memory content change command registration means (200) for sequentially registering input memory content change commands; and a memory content change command registration means (200) that registers memory content change commands when a memory content change execution command requesting execution of the memory content change command is received. A storage content changing method characterized in that (200) is provided with registered command execution means (300) for successively executing all the registered storage content changing commands. (2) In an information processing system (100) using a storage program control method that performs real-time processing, in order to request a change in the storage contents of a storage device (2) that stores programs executed by the information processing system (100). a memory content change command registration means (200) for sequentially registering input memory content change commands; and a memory content change command registration means (200) that registers memory content change commands when a memory content change execution command requesting execution of the memory content change command is received. (200) receives a registered command execution means (300) that continuously executes all the memory content change commands registered in the memory content change command, and a change content confirmation command that confirms in advance the execution results of the memory content change commands; In this case, the storage content to be changed is extracted, the storage content change command registered in the storage content change command registration means (200) is executed on the extracted storage content, and the execution result is output. A storage content changing method characterized by comprising a content confirmation means (400).