JPH02194447A - Debugging control system - Google Patents

Abstract

PURPOSE:To eliminate a fault that debugging needs much labor and time by storing change memory address information to be rewritten by an instruction, memory contents before change and memory contents after change and displaying these stored contents. CONSTITUTION:An objective program execution control part 3 calls a memory change analysis part 4 for each instruction of a program. In the memory change analysis part 4, when the instruction is to execute writing to the memory, control is delivered to a change information storage processing part 5 and the change information storage processing part 5 stores change memory address information 7 and memory contents 8 before change to a change information storage area 6. Next, one instruction of the program is executed by the objective program execution control part 3 and the change information storage processing part 5 executes processing to store memory contents 9 after change to the change information storage area 6. A change information display processing part 10 refers the stored contents of the change information storage area 6 and executes picture display, printer output or file output. Thus, a result can be judged at a glance and debugging can be efficiently executed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a debug control method, particularly a debug control method when memory contents are changed by an execution command of a program to be debugged.8 [Prior Art] Conventionally, software The debug program does not have a function to store information about the changed memory even if the memory contents are changed by the execution of the program to be debugged. Therefore, in order to know where and how the memory has been changed, the user must run the program several steps at a time and check the changes, and the user must find and record the change information himself.

[Problem to be solved by the invention]

In the conventional debug control method described above, it takes a long time to debug a program. ′::η,!
] A target program execution control unit that is activated by the analysis and extracts instructions when the progera 11 is executed.

A memory change analysis unit that determines whether the instruction rewrites the memory contents, and a memory change analysis unit that determines whether the instruction rewrites the memory contents; (a change information storage area for storing the changed information; a change information storage processing unit for storing the changed information; and a change information storage processing unit for storing the changed information; and a change information storage processing unit for storing the changed information; and a change information storage processing unit for storing the changed information; and a change information storage processing unit for storing the changed information; and a change information storage processing unit for storing the changed information.) 1. (Embodiment) The following 6.゛1 Referring to the present invention, referring to the drawings (()), Table 4 is explained.

FIG. 1 is an explanation ma1-('
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Deba...! In Douglogram 1 ゛ζ・User is a frame】I・
When you input , the command analysis unit 2 determines the type of the command 1) If the 8 command is a command that instructs the same execution of the program to be debugged, then the command analysis unit 2 determines the command 1) if the command is a command that instructs the execution of the program to be debugged. If it is not such a command, the command will be executed.

The target program execution control unit 3 is
The memory change analysis unit 1 calls the memory change analysis unit 4 for each instruction.1 judges whether the instruction is an instruction to write to the memory, and if it is an instruction to write to the memory, it is controlled by the change information storage processing unit 5. 7) I will not give it to you unless it is a specific order.

The change information storage processing unit stores the change memoria)/toss information 7 and the pre-change memory contents 8 in the change information storage area 6.

;In short, the target program execution control unit 3 is
Executes one instruction. When the command is a memory write command, the change information storage processing section 5 causes the changed memory contents 9 to be stored in the change information storage area 6. The target program execution control unit 3 executes this 9J! instruction until the execution of the program specified by the command is completed. ! Repeat filling 1″.

When the execution of the program is finished and a command to instruct change information display is input in the debug program 1, the change information display processing section 10 refers to the contents stored in the change information storage area 6 and displays the screen or Perform printer output or file output.

〔Effect of the invention〕

7] As explained above, the present invention stores information about where and how the memory was changed when the program to be debugged is executed in the rough 1-ware debug program, and displays it later. Since it has been designed as II that allows the user to execute the program several steps at a time and recognize the memory contents, unlike in the past, the user does not have to perform detailed operations. ,−
・The effect of being able to quickly judge the result and back up efficiently is 'Kfl' iP+.

[Detailed explanation of page 4 Figure 1 is an explanatory diagram of an embodiment of the present invention, 1. Debug program, 2.-27 Manto analysis section, 3.
・Paired with p blog, execution control unit, 4... memory change analysis unit, 5... exchange history information + f4 processing unit, 6... change information storage area, 7... change memory address information, 8 Memory contents before change, 9...Memory contents after change, lO...
After change (i11 display processing section.

Claims (1)

[Claims] A command analysis unit that analyzes input commands; a target program execution control unit that is activated based on the analysis result and extracts instructions one by one during program execution; and whether the instructions rewrite memory contents. a memory change analysis unit that determines whether the instruction is correct, a change information storage area for storing changed memory address information, pre-change memory contents, and post-change memory contents that are rewritten by the instruction; and a change information storage process that performs the storage. and a change information display processing unit that displays the contents stored in the change information storage area if the input command is a command for displaying changed memory information according to the result of the analysis. 1. A debug control method characterized by having the following in a debug program.