JP2002342126A - Device and method for performing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To predict and confirm an execution speed when a program is operated on a target machine in a cross environment on a computer for development. SOLUTION: An execution interruption time is calculated on the basis of an execution time of a target program in the target machine and a host machine (step S401). The target program is loaded (step S402). One instruction is extracted from the target program (step S403), and prescribed processing corresponding to the extracted one instruction is carried out (step S404). Execution interruption processing is performed (step S405), whether or not the entire instructions are processed is decided after a designated execution interruption time passes (step S406), and if remaining instructions exist, the processing is repeated from the step S403.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program execution device and a program execution method, and more particularly, to a host machine at the same execution speed as that of executing a target program on a target machine in a cross development environment. The present invention relates to a program execution device, a program execution method, and a computer-readable storage medium executed on the computer.

[0002]

2. Description of the Related Art Conventionally, when a program that operates on a certain computer system is developed, the program may be developed on a system different from the system. Such development is called cross development. ing.

In the cross development, for example, a computer system on which a program is to operate is not suitable for program development in terms of the performance of a CPU or memory, or the functions of a utility program such as a compiler or a debugger. This is done if you do not have it. In such a case, it is more efficient to develop a program using another computer system having higher performance and higher functionality than to develop a program on the computer system.

[0004]

However, in the conventional cross-development described above, the development computer and the CP of the target machine (or the target computer) are used.
The execution speed of the program on the development computer may be different from the execution speed of the program on the target system due to a difference in U performance or the like. Therefore, there is a problem that a program that satisfies the required specifications when operated on a development computer and has no performance problem may not satisfy the required specifications of the program when operated on a target machine. there were.

The present invention has been made in view of such a problem, and an object of the present invention is to predict, on a development computer, an execution speed when a program is operated on a target machine. An object of the present invention is to provide a program execution device and a program execution method that can be checked.

[0006]

According to one aspect of the present invention, there is provided a program execution apparatus for executing a target program to be executed on a target machine on a host machine. The execution time of the target program on the target machine, the execution performance obtaining means for calculating the execution performance ratio based on the execution time on the host machine, using the obtained execution performance ratio, Execution speed adjusting means for adjusting the execution speed of the target program in the host machine.

[0007] The invention described in claim 2 is the first invention.
Wherein the execution speed adjusting means includes an interpreter that executes an execution interruption process according to the execution performance ratio each time one instruction of the target program is executed.

[0008] The invention described in claim 3 is the first invention.
In the program execution device described in the above, the execution speed adjustment means, every time one instruction of the target program is executed, based on the determined execution performance ratio,
It has an interpreter for looping instructions.

The invention described in claim 4 is the first invention.
Wherein the target program is converted into an assembly program, and each of all assembly instructions in the converted assembly program is provided with a number of nop according to the determined execution performance ratio.
The host machine further comprises means for inserting an instruction, wherein the host machine executes the assembly program in which the nop instruction is inserted by the inserting means.

[0010] The invention described in claim 5 is the first invention.
The program execution device according to the above, further comprising, when compiling the target program, inserting a number of nop instructions corresponding to the execution performance ratio into each of all instructions included in the target program. It is characterized by.

[0011] The invention according to claim 6 is the first invention.
Wherein the host machine obtains execution performance information of the target machine via a network.

The invention according to claim 7 is the first invention.
Wherein the host machine acquires the execution performance information of the target machine from a computer-readable recording medium.

The invention described in claim 8 is the first invention.
The program execution device according to any one of claims 1 to 7,
The execution speed adjusting means is capable of adjusting the execution speed during execution of the target program.

According to a ninth aspect of the present invention, there is provided a program execution method for executing a target program to be executed on a target machine on a host machine,
The execution time of the target program on the target machine and the execution time on the host machine are determined based on the execution performance ratio, and the obtained execution performance ratio is used to calculate the target program on the host machine. It is characterized in that the execution speed is adjusted.

According to a tenth aspect of the present invention, in the program execution method according to the ninth aspect, when the execution speed is adjusted, one instruction of the target program is executed, and the instruction is executed according to the execution performance ratio. Performing a suspended execution process.

According to an eleventh aspect of the present invention, in the program execution method according to the ninth aspect, when the execution speed is adjusted, one instruction of the target program is executed, and the obtained execution performance is obtained. It is characterized in that the nop instruction is looped based on the ratio.

According to a twelfth aspect of the present invention, in the program execution method according to the ninth aspect, the target program is further converted into an assembly program.
Insert the number of nop instructions according to the determined execution performance ratio into each of the assembly instructions in the converted assembly program, and execute the assembly program in which the nop instruction is inserted in the host machine. It is characterized by doing.

According to a thirteenth aspect of the present invention, in the program execution method according to the ninth aspect, when compiling the target program, each of all instructions included in the target program includes The number of nop instructions according to the execution performance ratio is inserted.

According to a fourteenth aspect of the present invention, in the program execution method of the ninth aspect, the host machine acquires the execution performance information of the target machine via a network.

According to a fifteenth aspect of the present invention, in the program execution method of the ninth aspect, the host machine acquires the execution performance information of the target machine from a computer-readable recording medium. Features.

Further, the invention according to claim 16 is the program execution method according to any one of claims 9 to 15, wherein the adjustment of the execution speed is performed during execution of the target program.

[0022]

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. 1 to 4 of the present invention.

FIG. 1 is a block diagram showing an example of a functional configuration of a program execution device to which the present invention is applied. In addition,
The method for executing a program according to the present embodiment is realized on a computer, and each function according to the present embodiment operates according to a predetermined procedure defined by the program.

A program execution device to which the present invention is applied
The host machine 114 and the target machine 115
They are connected to each other via a network 100.

The host machine 114 is a computer system for cross development. RAM
105, a host machine 114, a CPU (not shown)
Is used as a work area for executing various programs. In the host machine 114, the external storage unit 104 is a unit for storing a program file and a data file. The display means 101 is a host machine 11
4 is a means for displaying various data and the like. The input unit 102 is a unit for inputting various data and commands in the host machine 114. Input means 10
Reference numeral 3 denotes a unit for operating a cursor displayed on the display unit 101 in the host machine 114.

The execution performance information means 106 is a means for obtaining the execution performance value of the host machine 114. The execution performance ratio acquisition unit 107 is a unit that obtains an execution performance ratio based on the performance execution values of the target machine 115 and the host machine 114. The execution speed adjusting unit 108 is a unit that adjusts the execution speed of the target program on the host machine 114 and thereby changes the execution performance ratio.
The program executing means 110 includes the above means 106 to 10
8 is a means for executing an execution file obtained based on the operation of FIG.

The target machine 115 is a system for executing a developed program in cross development. The input unit 110 is used to input various data and commands in the target machine 115. The RAM 112 is used as a work area for a CPU (not shown) to execute various programs in the target machine 115. The execution performance information acquisition unit 113 is a unit for obtaining the execution performance value of the target machine 115.

The RAM 105 or the RAM 112
Each means provided above is specifically configured as a program code, and an operation based on the program code is realized by a CPU (not shown) controlling the entire host machine 114 or the target machine 115.

FIG. 2 shows an example of a screen displayed on the display means of the host machine. In FIG. 2, a screen 201 displayed on the display unit 101 includes an execution screen 202 of the target program. Adjustment means 203
Is a means for adjusting the execution speed of the input means 103 target program, and takes the form of a horizontal scroll bar. The adjustment unit 204 is a unit that adjusts the execution speed by inputting data from the input unit 102. The adjusting means 203 and 204 can be operated during the execution of the target program, so that the execution speed can be adjusted even while the target program is being executed on the host machine.

FIG. 3 shows a procedure for calculating an execution performance ratio indicating a difference in execution performance between the target machine and the host machine.

First, in step S301, a test program is executed on the target machine 115, and the execution time is set as an execution performance value of the target machine 115. The test program used here is, for example, a program including all the assembly instructions provided by the target machine 115 or a program covering all the assembly instructions included in the target program.

Next, the process proceeds to step S302, in which the same test program is executed on the host machine 114, and the execution time is used as the execution performance value of the host machine 114.

In step S303, step S301
And an execution performance ratio (execution performance value of target machine / execution performance value of host machine) based on the two execution performance values obtained in step S302. And
In step S304, the target program is executed according to the obtained execution performance ratio. The procedure for executing the target program will be described later.

FIG. 4 is a flowchart showing an example of a processing procedure executed by an interpreter implementing the present invention. The interpreter shown here has a function of fetching instructions one by one, executing a predetermined process, and then performing an execution suspending process for a time obtained from the execution performance ratio, thereby causing a time lag.

First, in step S401, an execution interruption time (sleep time) is obtained from the execution performance ratio obtained in step S303. Next, step S4
At 02, the target program is loaded. Next, in step S403, one instruction is fetched from the target program, and in step S404, a predetermined process corresponding to the fetched one instruction is executed.

Next, in step S405, execution suspension processing for the time obtained in step S401 is performed, and after the specified execution suspension time has elapsed, the flow proceeds to step S406. In step S406, it is determined whether or not all instructions have been processed, and if there are remaining instructions, the processing is repeated from step S403. On the other hand, if the result of the determination is that all instructions have been executed, the process ends.

As described above, according to the program execution device of the present embodiment, a time lag occurs each time the interpreter executes one instruction, and the speed can be adjusted. As a result, the program can be executed on the host machine 114 at the same execution speed as when the target program was executed on the target machine 115.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. The configuration of the program execution device according to the present embodiment is the same as that of the first embodiment, and the means for obtaining the execution performance ratio is the same as that of the first embodiment. Will be explained.

FIG. 5 is a flowchart showing an example of a processing procedure executed by an interpreter implementing the present invention. The interpreter shown here takes out instructions one instruction at a time, executes a predetermined process, and then executes instructions (nop instructions) that do nothing for the number of times determined from the execution performance ratio, thereby generating a time lag. Have.

First, in step S501, the number of nop instructions to be executed is obtained based on the execution performance ratio obtained by the processing shown in FIG.

Next, in step S502, the target program is loaded. Next, step S503
, One instruction is extracted from the target program, and in step S504, a predetermined process corresponding to the one instruction is executed. Next, in step S505, the nop instructions for the number of times obtained in step S501 are executed. Then, after executing the specified number of times, step S5
Proceed to 06.

Finally, it is determined in step S506 whether all instructions have been processed, and if there are remaining instructions, the processing is repeated from step S503. On the other hand, if the result of the determination is that all instructions have been executed, the process ends.

As described above, according to the program execution device of the present embodiment, a time lag occurs each time the interpreter executes one instruction, and the speed can be adjusted. As a result, the program can be executed on the host machine 114 at the same execution speed as when the target program was executed on the target machine 115. Further, according to the present embodiment, the speed can be adjusted even when the execution suspension time of the first embodiment is shorter than the minimum execution suspension time which is the specification of the host machine 114.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. Note that the configuration of the program execution device of the present embodiment is the same as that of the first embodiment, and the means for determining the execution performance ratio is also the first embodiment.
Since this embodiment is the same as the embodiment, a description will be given with reference to FIGS.

FIG. 6 is a flowchart showing an example of the procedure of the program execution method according to this embodiment.

First, in step S601, the source file of the target program is converted into an assembly language. Let the file created by this operation be an assembly file.

Next, in step S602, (execution performance ratio-1) × f (x) nop instructions are inserted immediately after all the assembly instructions included in the assembly file. Where x is the code of the assembly instruction,
The function f (x) indicates the number of nop instructions corresponding to the execution time of the code x of a certain assembly instruction.

Next, in step S603, the assembly file generated in the procedure of steps S601 and S602 is compiled and executed.

As described above, according to the program execution device of the present embodiment, a nop instruction is intentionally inserted into a source file and executed, thereby causing a time lag during program execution. , The speed can be adjusted. This allows the target program to be executed on the host machine 114 at the same execution speed as that executed on the target machine 115 without changing the existing interpreter and without changing the existing compiler. Becomes possible.

Note that the program execution method according to the present embodiment can be adopted in languages other than the interpreted language.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. The configuration of the program execution device according to this embodiment is the same as that of the first embodiment, and the means for obtaining the execution performance ratio is the same as that of the first embodiment. I will explain.

FIG. 7 is a flowchart showing an example of a processing procedure executed by a compiler implementing the present invention. The compiler shown here, at compile time,
There is a function of generating a time lag by executing the operation of step S602 in the third embodiment.

First, in step S 701, the compiler executes (execution performance ratio−1) × f immediately after all the assembly instructions included in the assembly file.
(X) nop instructions are inserted. Here, x is the code of the assembly instruction, and the function f (x) indicates the number of nop instructions corresponding to the execution time of the code x of a certain assembly instruction.

Next, in step S702, the assembly file created in the procedure of step S701 is compiled and executed.

As described above, according to the program execution apparatus of the present embodiment, when compiling a source file, a program is generated by intentionally inserting a nop instruction, and the program is executed by executing the program. Occasionally, a time lag occurs, and the speed can be adjusted. As a result, the target program can be transferred to the target machine 11 without modifying the existing interpreter.
5 at the same execution speed as that executed on host machine 11
4 can be executed.

The program execution method according to the present embodiment can be adopted in languages other than the interpreted language.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described. In the present embodiment, a procedure for transmitting the execution performance information of the target machine 115 to the host machine 114 in the process of obtaining the execution performance ratio performed in the first to fourth embodiments will be described.

First, the execution performance information of the target machine 115 is obtained, and this execution performance information is sent to the host machine 114 through the network. Then, the execution performance ratio obtaining unit 107 obtains the execution performance ratio based on the execution performance information obtained from the target machine 115 and the execution performance information obtained on the host machine 114.

(Sixth Embodiment) Next, a sixth embodiment of the present invention will be described. In the present embodiment, a procedure for transmitting the execution performance information of the target machine 115 to the host machine 114 in the process of obtaining the execution performance ratio performed in the first to fourth embodiments will be described.

First, the execution performance information of the target machine 115 is obtained. Next, the execution performance information is sent to the host machine 114 using a computer-readable recording medium such as a floppy disk or a CD-R.

Finally, the execution performance ratio obtaining means 107 obtains the execution performance ratio based on the execution performance information obtained from the target machine 115 and the execution performance information obtained on the host machine 114.

As a result, even when the target machine 115 and the host machine 114 are not connected via a network, it is possible to transfer execution performance information.

[0063]

As described above, according to the present invention,
Predict on the host machine how fast the target program will run on the target machine,
You can check. For this reason, it is possible to confirm on the host machine whether the application having no performance problem on the host machine satisfies the required specifications of the application on the target machine.

As a result, every time the program is improved, the trouble of downloading the program to the target machine can be omitted, and the efficiency of the program development work in the cross environment can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a functional configuration of a program execution device to which the present invention has been applied.

FIG. 2 is a diagram showing an example of a display screen of a program execution device to which the present invention has been applied.

FIG. 3 is a flowchart illustrating a procedure for obtaining an execution performance ratio according to the embodiment of the present invention.

FIG. 4 is a flowchart illustrating an example of a processing procedure executed by a program execution unit according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating an example of a processing procedure executed by a program execution unit according to a second embodiment of the present invention.

FIG. 6 is a flowchart illustrating an example of a processing procedure executed by a program execution unit according to a third embodiment of the present invention.

FIG. 7 is a flowchart illustrating an example of a processing procedure executed by a program execution unit according to a fourth embodiment of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 network 101 display means in host machine 102 input means in host machine 103 input means in host machine 104 external storage means in host machine 105 RAM in host machine 106 execution performance information obtaining means in host machine 107 execution performance ratio obtaining means in host machine 108 Execution speed adjusting means in host machine 110 Program execution means in host machine 111 Input means in target machine 112 RAM in target machine 113 Execution performance information obtaining means in target machine 114 Host machine 115 Target machine 201 Display screen of program execution device 202 Target Program execution screen 203 Program execution speed adjusting means 204 Pro Gram execution speed adjusting means S Each step of procedure

Claims (16)

[Claims] 1. A program execution device for executing a target program to be executed on a target machine on a host machine, wherein the execution time of the target program on the target machine and the execution time of the target program on the host machine And an execution speed adjusting unit that adjusts the execution speed of the target program in the host machine using the obtained execution performance ratio. Program execution device. 2. The program execution device according to claim 1, wherein the execution speed adjusting means executes an execution interruption process according to the obtained execution performance ratio every time one instruction of the target program is executed. A program execution device comprising an interpreter. 3. The program execution device according to claim 1, wherein the execution speed adjusting means loops a nop instruction based on the obtained execution performance ratio each time one instruction of the target program is executed. A program execution device comprising an interpreter. 4. The program execution device according to claim 1, wherein the target program is converted into an assembly program, and each of all the assembly instructions in the converted assembly program is converted to the calculated execution performance ratio. A program execution device further comprising means for inserting a corresponding number of nop instructions, wherein the host machine executes the assembly program in which the nop instructions are inserted by the insertion means. 5. The program execution device according to claim 1, wherein when compiling the target program, each of all instructions included in the target program is provided with a number of nop instructions corresponding to the execution performance ratio. A program execution device, further comprising means for inserting. 6. The program execution device according to claim 1, wherein said host machine acquires execution performance information of said target machine via a network. 7. The program execution device according to claim 1, wherein the host machine acquires execution performance information of the target machine from a computer-readable recording medium. 8. The program execution device according to claim 1, wherein said execution speed adjusting means is capable of adjusting said execution speed during execution of said target program. apparatus. 9. A method for executing a target program to be executed on a target machine on a host machine, comprising: an execution time of the target program on the target machine; and an execution time of the target program on the host machine. A program execution method, wherein an execution performance ratio is calculated based on the above, and the execution speed of the target program in the host machine is adjusted using the calculated execution performance ratio. 10. The program execution method according to claim 9, wherein when adjusting the execution speed, one instruction of the target program is executed, and an execution interruption process according to the execution performance ratio is performed. Program execution method. 11. The program execution method according to claim 9, wherein when adjusting the execution speed, one instruction of the target program is executed, and a nop instruction is looped based on the obtained execution performance ratio. A method for executing a program, comprising: 12. The program execution method according to claim 9, further comprising: converting the target program into an assembly program; and executing the determined execution performance for each of all the assembly instructions in the converted assembly program. A program execution method comprising: inserting a number of nop instructions according to a ratio; and executing, in the host machine, an assembly program into which the nop instruction is inserted. 13. The program execution method according to claim 9, further comprising, when compiling the target program, adding a number of nop according to the execution performance ratio to each of all instructions included in the target program. A program execution method, comprising inserting an instruction. 14. The program execution method according to claim 9, wherein said host machine acquires execution performance information of said target machine via a network. 15. The program execution method according to claim 9, wherein the host machine acquires execution performance information of the target machine from a computer-readable recording medium. 16. The program execution method according to claim 9, wherein the adjustment of the execution speed is performed during execution of the target program.