JPS6072034A - Emulation device - Google Patents

Abstract

PURPOSE:To obtain a device which can be operated even if it is connected to a host machine whose command specifications are different, by providing a command converting part for converting a control command to be inputted, to its own command specification. CONSTITUTION:A titled device is provided with a command converting part for converting a control command inputted from an interface part, to its own command specifications. For instance, in case a use desires to display the contents of 1000 address through 10FF address of a memory in an emulation device 10, on a console 15, a command is received through an interface part 2 of an information processing device 1, a communicating circuit 3 and an interface part 11, and converted to a command DM-1000, 10FF which conforms with its own command specifications by the command converting part 12. Subsequently, by this command, the contents of the memory in the emulation device 10 are converted so as to conform with a display form of a host machine, sent out to the host machine through the interface part 11, and its contents are displayed on the console 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to an emulation device, and more particularly to an emulator device that emulates the hardware functions of a microprocessor.

[Prior art]

When designing and operating a system using a microprocessor, software is required, and it is difficult to create complete software at once. Debugging is usually performed to correct errors in software that has been created. An in-circuit emulator is a device that can be executed in real time to help with this debugging and to know the operation of the microprocessor at that time. In-circuit
The emulator has four probes that have the same scibin arrangement as the microprocessor. By removing the microprocessor from the IC socket and inserting an in-circuit emulator probe into the socket, it is possible to execute the same instructions as a microprocessor. By executing this instruction, it is possible to know the contents of registers, reading and writing to memory, etc., which were not known when the microprocessor was executed.

FIG. 1 is a block diagram of an example of an information processing system including a conventional in-circuit emulator.

In FIG. 1, 1 is an information processing device, and 4 is an in-circuit emulator. The information processing device 1 has a function of issuing control commands to the in-circuit emulator 4. The information processing device 1 has a function of issuing control commands to the in-circuit emulator 4. The information processing device 1 is an in-circuit emulator 4
Since it becomes the host machine for the following information processing device 1
is called the host machine. The in-circuit emulator has an interface section 5, a control section 6, and an emulation section 7, and the interface section 5 is connected to the interface section 2 of the information processing device through a communication line 3.

Next, the operation of this system will be explained. The host machine is a device for developing software and has the function of issuing control commands to the in-circuit emulator. Control commands issued from the host machine are converted into communication signals by the interface section 2, and reach the in-circuit emulator 4 through the communication line 3. In the in-circuit emulator, the signal converted by the interface unit 5 for use in communication and injury is returned to the original control command, and in accordance with the command, the control unit 6 controls the emulator unit 7 to carry out the emulation process.

In the conventional in-circuit emulator, the control section 6
It has the disadvantage that it only has the ability to interpret only the commands of a specific host machine, and when connecting to another host machine, the command specifications of the host machine must be changed.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an emulation device that eliminates the above drawbacks and can operate even when connected to a host machine with different command specifications.

[Structure of the invention]

The emulation device of the present invention includes an interface unit that is connected via a communication line to an interface unit of an information processing device that has a function of issuing control commands, and converts the control commands input from the interface unit into its own command specifications. It is configured to include a command conversion section, a control section that receives the converted control command from the command conversion section and performs operation control, and an emulation module that operates under the control of the control section.

[Explanation of Examples]

Next, one embodiment of the present invention will be described using the drawings.

FIG. 2 is a block diagram of one embodiment of the present invention.

In this embodiment, (1) communication circuit IfM3 is connected to the interface unit 2 of the information processing device 1 having the function of issuing control commands.
an interface section 11 connected to the interface section 11, a command conversion section 12 that converts control commands input from this interface section 11 into its own command specifications, and a command conversion section 12 that receives the converted control commands from this command conversion section 12 and performs operation control. The emulation unit 14 is configured to include a control unit 13 that performs the following operations, and an emulation unit 14 that operates under the control of the control unit 13.

This emulation e=ffft i'li is applicable to both serial and parallel systems.

FIG. 3 is a block diagram of the command converter shown in FIG. 2.

This command conversion unit 12 is a command buffer that receives commands sent from the host machine.

Register 21 and ROM 2 that stores programs
4, a microprocessor 23 that issues commands based on its own command specifications using a program omitted in the 几0M24, and a firefly captures commands sent from the microprocessor 23! I;1j includes a command buffer register 22 for sending to the control section 13. Ma1hi,
The data in the 77 memory sent from the fa'l cape section 13 is also converted by the microprocessor 23 into a format that matches the display format of the host machine.

Next, the operation of this embodiment will be explained. This explanation,
This is performed when the emulation device is connected to a host machine whose command specifications differ from those of the emulation device 10. In addition, if the user
An example will be explained in which the contents of the oFF address are to be displayed on the console.

The user accesses DISP 1000T01 from console 15.
Receives the command OFF. This command is converted by the command converter 12 into a command DM-1000, l0FF' that matches its own command specifications. and,
In response to the command, the controller reads the contents of the memory within the emulation device and sends it to the command converter 12 in its own display format.

The command conversion section 12 converts the contents of the memory to match the display format of the host machine, and sends it to the host machine through the interface section 11. The host machine then records the contents of its memory on the console 15.
It will be displayed above and the series of processing will be completed.

The operation of the command converter will be explained in more detail. A command is sent to the command buffer register 21 from the post machine. Then microprocessor 2
3 is a command written by the program written in ROM24.
A command based on its own command specifications is sent to the buffer register 22.

In this way, command conversion is performed by the microprocessor, so if you prepare a ROM in which a conversion program is written according to the command specifications of the host machine, R
By simply replacing the OM, the Emmy LAN system of the present invention can be connected to and operated on any host machine with any command specifications. Also, with this configuration, if an incorrect command is input, the command converter will detect it as a command error and output a message to the host machine, so the control unit will There is also the advantage that you can concentrate on controlling the emulation section, regardless of the processing.

〔Effect of the invention〕

As explained above/as described above, the present invention is capable of connecting and operating a host machine with different command specifications by providing the Emmy LASI date device with a command conversion function, and the host machine's software l This has the effect that there is no need to change the clothing.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an example of an information processing system including a conventional in-circuit emulator, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a block diagram of the command converter shown in FIG. 2. It is a diagram. 1...Information processing device, 2...Interface unit, 3...Intelligence unit 4...In-circuit aeration device, 1 i... ...
- Interface section, 12... Command conversion section, 13... Control section, 14... Emulation section, 15... Group console, 21.22.
...Command buffer register, 23...
...Microprocessor, 24...ROM
.

Claims (1)

[Claims] An ear'X-face unit that is connected via a communication line to an interface unit of an information processing device that has a function of issuing control commands, and a command conversion unit that converts front control commands input from the interface unit into its own command specifications. What is claimed is: 1. A tossle emulation system comprising: a control section that receives the converted control command from the command conversion section and performs operation control; and an emulation section that operates under the control of the control section.