JPH02100146A - Trace decision system - Google Patents

Abstract

PURPOSE:To recognize the entire execution process of a program by providing an indentification code at a program routine, deciding whether or not trace should be performed by the information of a trace control register, and storing only the identification code. CONSTITUTION:When the program routine is executed, the identification code of the program routine and the content of a trace condition storage means 2 are referred. And a trace processing routine 3 which stores the identification code of the program routine in an identification code storage means 4 corresponding to the content is provided. In such a case, the program sends the identification code of the program to the trace processing routine 3, and the trace processing routine 3 stores the identification code of the program routine in the identification code storage means 4 when the code coincides with a trace condition stored in the trace control register 2. In such a way, it is possible to recognize the entire execution process of the program.

Description

[Detailed Description of the Invention] [Summary] In an information processing device, the purpose is to store the entire execution process of a program, and the information processing device has an identification code for identifying the program, and uses the identification code as its own. a program routine stored in a program; a trace condition storage means for storing trace execution conditions of the program routine; and an identification code storage means for storing an identification code of the program routine;
When the program routine is executed, the identification code of the program routine and the contents of the trace condition storage means are referred to, and the identification code of the program routine is stored in the identification code storage means according to the result. The configuration includes a trace processing routine.

[Industrial application field]

The present invention relates to a trace determination method that records the execution history of a program and is used during maintenance and testing of the program.

[Conventional technology]

Traditionally, in information processing equipment, program maintenance,
BACKGROUND ART In order to perform tests and the like, a state history of when a program is executed is stored (hereinafter abbreviated as "trace"). In conventional program tracing methods, there are methods that store all steps executed by a program in a trace storage area, methods that trace the process of program execution within a certain address range within a certain program, and methods that store all steps executed by a program in a trace storage area. , there were some that traced only when a specific instruction was executed.

[Problem to be solved by the invention]

However, in the above three methods, since the storage area for trace results is limited, it is not possible to leave trace records of all program executions. In order to leave the record, the recording area may be increased, but in this case the amount of hardware will increase and the cost will increase. In other words, although the above-mentioned tracing method allows partial tracing of a program, it is impossible to recognize the entire execution process of the program.

In a program that controls the operation of an information processing device,
When maintaining or testing a program, it is desired to know what program routine was used in a series of operations when a certain operation is executed.

Accordingly, an object of the present invention is to provide a method that allows an operator to grasp the entire execution process of a program, and also allows an operator to select and trace desired processing.

[Means to solve problems]

a program routine having an identification code for identifying a program and storing the identification code in its own program; a trace condition storage means for storing conditions for tracing execution of the program routine; and an identification code for the program routine. an identification code storage means for storing the
When the program routine is executed, the identification code of the program routine and the contents of the trace condition storage means are referred to, and the identification code of the program routine is stored in the identification code storage means according to the contents. The configuration includes a trace processing routine.

[Effect]

When a program routine is executed, the program sends the program's identification code to the trace processing routine. When the trace processing routine matches the trace condition stored in the trace control register, it stores the identification code of the program routine in the identification code storage means.

[Embodiment] FIG. 1 is a block diagram of an embodiment of the present invention. 1 is an MPU, 2 is a trace control register, 3 is a trace processing routine, and 4 is a trace storage area.

5 is a program storage area in which several program routines are stored. 6 is a register, and 7 is an external storage input device. FIG. 2 shows the contents of each program routine stored in the program storage area 5 in FIG.

In FIG. 1, the diagram of the program storage area 5 is a diagram showing that each program routine is classified into groups and an identification code is assigned to each routine so as not to overlap.

Each number is an identification code.

While routine 11 is running, the routines called by routine 11 are routines 21, 22, and 23. Further, the routines that the routines 21, 22, and 23 call during execution are routines 31, 32, 33, and 34. Routine 1
1 as the first group routine, routine 21.22.23
as the second group routine, routines 31, 32, 33 .
34 is the third group routine.

The trace control register 2 is a register that can be rewritten by the operator from the external input device 7, and stores trace conditions. When "°01" is stored in the register 2, the identification codes of all executed routines are stored; when "10" is stored, only the identification code of the second group routine is stored. . 11'' is stored, only the identification code of the third group routine is stored.

Examples will be described below with reference to the drawings.

Now, routine 11 is being executed, and the routine 11
, the routine 21 is called, and the routine 21 is
Assume that routine 32 is called during execution. After that, when the process of routine 32 is completed, the process returns to routine 21, and when the process of routine 21 is completed, the process returns to routine 11, and further calls routine 23, and after completing the process of routine 23, returns to routine 11. shall be taken as a thing.

Now, tracing in the case of the above operation will be explained.

It is assumed that "01" is stored in the trace control register 2. In this case, all identification codes of the routine are stored.

Now, suppose that routine 21 is called while routine 11 is being executed. The steps of the routine 21 are as shown in FIG. First, the routine 21 writes the identification code of the routine 21 into the register 6. The identification code 21 of the routine is written into the register 6. After that, trace processing routine 3 is called. The trace processing routine 3 reads the contents of the register 6 and the trace control register 2, and determines the processing conditions for the identification code from the trace condition information in the trace control register 2. In this case, since the identification codes of all routines are to be stored, the second identification code is stored in the trace storage area 4, the tracing is completed, and the routine returns to the routine 21.
Thereafter, the routine 21 calls the routine 32 during execution, and the same processing as described above is performed in this case as well. The same applies when routine 23 is executed. As described above, when the above routine is executed, 21, 32, and 23 are stored in the trace storage area 4.

In addition, when "10°" is stored in trace control register 2, that is, when only the identification code of the second group routine is stored, and when a routine similar to the above is executed, trace processing is performed when routine 32 is executed. Since the conditions do not match in the processing of routine 3, the process returns to routine 32 without doing anything, so 21.23 is stored in trace storage area 4.
only is stored. Further, in the case of "11", only 32 is stored.

The present invention has been described above according to examples. Although the embodiment has been described using an example in which there are three routine groups, the present invention is not limited to this and is not limited to the classification of the groups.

As described above, the present invention can be modified in various ways in accordance with the gist of the present invention, and the present invention does not exclude them.

[Effects] The present invention provides an identification code in the program routine, determines whether or not to perform tracing based on the information in the trace control register, and stores only the identification code based on the determination, so that the amount of trace storage information does not increase. Furthermore, it is possible to recognize the entire program execution process.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
This is the content of the program routine stored in the program storage area 5 in FIG. 1...MPU 2...Trace control register Trace processing routine Trace storage area Program storage area register External input device

Claims (1)

[Scope of Claims] A program routine having an identification code for identifying the program and storing the identification code in its own program; and trace condition storage means (2) for storing conditions for tracing execution of the program routine. ), and identification code storage means (4) for storing an identification code of the program routine.
and when the program routine is executed, the identification code of the program routine and the contents of the trace condition storage means are referred to, and the identification code of the program routine is stored in the identification code storage means according to the result. A trace determination method comprising a trace processing routine (3) for storing an identification code.