JPH04358236A - Data processor - Google Patents

Abstract

PURPOSE:To remain the history of continuously generating software error over a wide time zone. CONSTITUTION:The class information of the generated software error is stored (process 12) in an identification information storage part designated by a rough information stack pointer. It is discriminated (process 13) whether the sampling of detailed information is required or not. When it is not required, a detailed information address storage part is cleared (process 15) and it is stored that no detailed information exists in respect to the software error. When it is necessary to sample the detailed information, the detailed information is stored (process 14) in the detailed information storage part and the value of a detailed information stack pointer is stored (process 16) in the detailed information address storage part. The detailed information stack pointer is added and updated (process 17) only for the capacity of one entry, the rough information stack pointer is added and updated (process 18) only for the capacity of one entry, and an individual processing is executed (process 19) corresponding to the class of the error.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device controlled by a microprogram, and more particularly to a method for collecting error information when a software error occurs.

0002

2. Description of the Related Art Conventionally, in order to improve maintainability, this type of data processing apparatus has been provided with a means for detecting the occurrence of a software error, and when a software error occurs, a software error processing routine of a microprogram is operated, and the software Along with error handling,
Many systems store detailed information about software errors in a sequential stacked format on main memory.

However, since there is a limit to the number of detailed software error information that can be stored in the main memory, detailed information has been stored only for types of software errors for which detailed information is particularly required.

0004

[Problem to be Solved by the Invention] However, in such a system, information is not retained for software errors that do not require detailed information, so there is a gap between software errors for which detailed information is stored and software errors. However, it is not known whether a software error has occurred in which detailed information is not stored, and the operation of the data processing device cannot be completely understood.

[0005]

[Means for Solving the Problems] According to the present invention, in a microprogram-controlled data processing device that executes software instructions, there is provided a software error detection means for detecting the occurrence of a software error, and a software error detection means for processing the software error. processing means, and the software error processing means stores summary information indicating the type of software error;
detailed information collection determining means for determining whether detailed information collection is necessary from the summary information; detailed information storage means for storing detailed information of a software error when it is determined that detailed information collection is necessary; Accordingly, there is obtained a data processing device characterized in that it has an individual error processing means for performing individual error processing.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in more detail with reference to the drawings.

Referring to FIG. 1, in one embodiment of the present invention, in a software error occurrence detection process 10, it is checked whether or not a software error has occurred, and if a software error has occurred, the software Error processing 11 is started. The software error detection process 11 consists of the following processes. First, by the summary information storage process 12, the type information of the software error that has occurred is stored in the identification information storage section 22 pointed to by the summary information stack pointer 21 shown in FIG. Next, detailed information collection processing 13 determines whether the error that has occurred is a functional error that occurs to realize the system's functions, that is, a software error that does not require detailed information collection, or a fatal error that occurs due to a software error. It is determined whether the error is a software error that requires collection of detailed information. If detailed information collection determination processing 13 determines that detailed information collection is not necessary, detailed information address section clear processing 15 clears the identification information stack pointer 2.
The detailed information address storage section 23 pointed to by 1 is cleared, and it is stored that detailed information does not exist for that software error. Thereafter, the identification information stack pointer 21 is additionally updated by one entler capacity of the summary information stack by the summary information stack pointer update process 18. Individual error processing 19 executes individual processing for the type of software error that has occurred,
Software error processing 11 ends.

If detailed information collection determination processing 13 determines that detailed information collection is necessary, detailed information storage processing 14 stores detailed information about the software error in detailed information storage section 22 indicated by detailed information stack pointer 31. is stored, and the detailed information stack pointer 3 is stored in the detailed information address storage unit 23 indicated by the general information stack pointer 21 by the detailed information address storage unit storage process 16.
A value of 1 is stored. Furthermore, the detailed information stack pointer 3 is updated by the detailed information stack pointer update process 17.
1 is added and updated by the capacity of one entry of the detailed information stack, and then the general information stack pointer 21 is added and updated by the capacity of one entry of the general information stack by the general information stack pointer update process 18. Finally, individual error processing 19 performs individual processing for the type of software error that has occurred, and the software error processing 11 ends.

[0009]

[Effects of the Invention] As explained above, according to the present invention,
By storing summary information indicating the type of software error for all software errors that have occurred, it is possible to keep a continuous history of software error occurrences over a wide range of time, improving maintainability. .

[Brief explanation of drawings]

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

FIG. 2 is a diagram showing the configuration of a general information stack in this embodiment.

FIG. 3 is a diagram showing the configuration of a detailed information stack in this embodiment.

[Explanation of symbols]

21 General information stack pointer 22 General information storage section 23 Detailed information address storage section 31 Detailed information stack pointer 32 Detailed information storage section

Claims (1)

[Claims] 1. A microprogram-controlled data processing device that executes software instructions, comprising: software error detection means for detecting the occurrence of a software error; and software error processing means for processing the software error; The means includes a summary information storage means for storing summary information indicating the type of software error, a detailed information collection determination means for determining whether detailed information collection is necessary from the summary information, and a detailed information collection determination means for determining whether detailed information collection is necessary. 1. A data processing device comprising: detailed information storage means for storing detailed information on software errors; and individual error processing means for performing individual error processing according to the type of software error.