JPH04174036A - Memory dumping system for error time - Google Patents

Abstract

PURPOSE:To improve the efficiency of analyzing operation for the cause of trouble by starting a memory dumping process program by referring to the segment address and offset value of an interruption table in response to the depression of a specific key which is predetermined by the system. CONSTITUTION:A transaction program which is loaded when the system is started up loads the memory dumping process program 1. Further, the segment address and offset value of the memory dumping process program 1 are registered in the interruption table 2 that MS-DOS offers corresponding to keys. If software logical trouble occurs in this state to halt the system and an operator presses the specific key, the memory dumping process program 1 registered in the interruption table 2 is started through the keyboard control part 3 of MS-DOS. Consequently, the cause of the software logical trouble is easily analyzed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention provides an information processing apparatus that operates on MS-DOS, which is capable of preventing software logic failures, i.e. program logic errors,
This invention relates to a memory tamping method in the event of an error for the purpose of analyzing the cause when an information processing device is stopped due to an interface error or the like.

[Conventional technology]

Conventionally, in an information processing device having MS-DOS,
If the information processing device is stopped due to a software logic failure, - For boat fishing, a buffer in the business program,
Dump processing for tables, etc. was incorporated, and when an error was reproduced in a reproduction test, it was dumped using dump processing to collect information and analyze the cause.

[Problem to be solved by the invention]

In the conventional information collection method described above, each time a failure occurs,
It takes a lot of time to analyze the cause because dump processing must be incorporated and a reproduction test must be performed. Furthermore, depending on the failure, MS-DOS itself may be destroyed, and there is a drawback that the tamper processing will not work and information collection will be impossible.

[Means to solve the problem]

The present invention relates to a memory dump method in the event of an error in an information processing device running on MS-DOS, and is a memory dump process that dumps a predetermined memory area when the system is loaded and started by a business program. program, an interrupt table in which the segment address and offset value of the loaded memory dump processing program are registered, and a segment address in the interrupt table that corresponds to the press of a specific key on the keyboard determined in advance by the system. The present invention is characterized in that it includes a keyboard control section that starts the memory dump processing program by referring to the offset value.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

First, the memory dump processing program 1 is loaded by the business program loaded at system startup.

In addition, the segment address and offset value of the memory stamp processing program 1 described above are registered in the interrupt table 2 provided by MS-DOS for each key, corresponding to a specific key determined in advance by the system. .

In such a situation, if a software logic error occurs and the system is stopped, and the operator presses the specific key mentioned above, the interrupt will be registered in the interrupt table 2 via the keyboard control section 3 of the MS-DOS. The memory dump processing program 1 is started.

The memory dump processing program 1 dumps the memory contents as shown in FIG. 2 onto a floppy disk or magnetic disk.

〔Effect of the invention〕

As explained above, the present invention has the effect that even when an information processing device is stopped due to a software logic failure, it is possible to easily perform memory tamping and to improve the work efficiency of analyzing the cause of the failure. There is.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG.
The figure shows an example of the contents of a memory dump. l...Memory dump processing program, 2...Interrupt table, 3...Keyboard control unit.

Claims (1)

[Claims] In a memory dump method in the event of an error in an information processing device operating on MS-DOS, a memory dump processing program that dumps a predetermined memory area when loaded and started by a business program at system startup; Refer to the interrupt table in which the segment address and offset value of the loaded memory dump processing program are registered, and the segment address and offset value in the interrupt table in response to the press of a specific key on the keyboard determined in advance by the system. A memory dump method in the event of an error, further comprising a keyboard control unit for starting the memory dump processing program.