JPS5894041A - Debug backup device for high-class language - Google Patents

Abstract

PURPOSE:To improve the productivity of the software for a debug backup device of a microcomputer, by performing a process after converting automatically the designated symbol or sequence number given from a keyboard into an address of a machine word. CONSTITUTION:A debug backup device of the software is provided with a symbol table 5 which stores the machine word address corresponding to the symbol or the sequence which is formed from a source program by a complier and other information, a file retrieving circuit 15 which is read on the basis of the symbol or the sequence number supplied through a keyboard 5, and a symbol code register 17 which stores the information read out of the table 5. The reading/writing is performed to the machine word address delivered from the register 17. At the same time, the type is converted for the reading/writing in accordance with the type delivered from the register 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for supporting the 7'' packing of computer software, and more particularly to an apparatus for supporting the depacking of software that has been packaged using rc high-level keywords.

Computer software is generally high-end such as Kobol, Fortran, etc. Created by r-. Conventionally,
Luxury in words! Depak of Nine Software! This is done using the de/dotsuk line and tracer functions written into the program. A depack line is an instruction written to a specific line in a source zologram by specifying a depack line. It has the function of being ignored during execution of the program, and when depacking is specified during translation processing by the controller of the start processing f program, the instructions in this depacking line are translated.

Depacking can be performed by storing a specific message or a display command for a specific area in the denoguta line. The tracer is a function that outputs the sequence number of executed instructions.

In the conventional method described above, if you try to change the area to be displayed during depacking, for example, the area to be displayed will be changed every time.
The a-gram must be corrected and reconverted. Therefore, it has the disadvantage that it cannot be depacked interactively.

In recent years, with the development of microprocessors due to advances in LSI technology, a depacking support device called a microprocessor analyzer has appeared. With this device, it is possible to analyze and display machine language level operations during execution.

Also, six high-class blinds are now available on Microgrocer. However, zologrammers who create zolograms in high-level Chinese do not know machine language, so
I cannot use the fj3 micro/rose tuna analyzer.

The purpose of the present invention is to solve the drawbacks of the above-mentioned conventional methods and to solve the problems of the original method. If you specify the symbols and sequence numbers used in the program from the keyboard, the specified symbols and sequence numbers will be automatically converted to machine language addresses and processed. - It is an object of the present invention to provide a depacking support device that can be used even in

The support device of the present invention reads a symbol table that stores mechanical music addresses and other information corresponding to symbols or sequence numbers created by a programmer from a source program based on the symbols or sequence numbers used by the programmer. a circuit, a symbol register that stores symbols or sequence numbers input from the keyboard, and a symbol record register that stores information successively received from the symbol table, and reads a machine language address output from the symbol record register. /writing, and the read/write is characterized in that the type is converted according to the type output from the symbol record register.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a diagram showing an outline of the configuration of the present invention.
Depacks the program to be executed. A command for depacking is input from the keyboard 3, and the processing results are output to the display array 4. On the other hand, when a source program is written into a source program, a target program is created, and a target program is output to the target program. The information is stored and nine symbols are created.Therefore, the Depack support device l
corresponds from the symbol table 5 by symbol or sequence number. I can gather information. Then, necessary processing is performed according to the read machine language address, etc. For example, data that continues from the specified address is converted into type and displayed on the display array 4.

FIG. 2 is a diagram showing the contents of the symbol table 5.

That is, a code is created for each symbol and sequence number unit in the child program, and multiple records are configured in a file. Type 8 indicates whether the sequence number belongs to the command being executed: character data; 1o decimal data: hexadecimal data.
, a machine address 9 which is converted into a machine candy date duram and indicates the beginning after mourning, and a length 10 in the case of data. The symbol table is created by the computer controller 6 when the computer controller 6 converts and outputs a source program into a target program. In addition, the file organization includes an index organization file, a relative organization file that allows binary search, etc.
IZ! and can be accessed using the keyword [.

FIG. 3 is a block diagram showing one embodiment of the present invention,
The structure of FIG. 1 is shown in more detail except for the connoir curve. That is, instructions from the Zologrammer during depacking are input from the keyboard 3, and the instructions are input from the keyboard control circuit 1.
2 to the control circuit 13. Control circuit 13#'
i, parse the command and set the symbol or sequence number 7t in the command symbol register 14; The depack support device operates the symbol register 14. A file search for searching the symbol table 5 using the symbol or sequence number 7 given from the symbol register 14 and reading out the starting address (i.e. machine addresses) 9 where the corresponding mechanical zologram is stored, such as the type 8 It is comprised of a circuit 15, a symbol record register 17, etc. in which the subsequent information is set.

For example, in the case of memory reading, the memory access control circuit 18 accesses the memory 19 of the target processor using the contents of the address field P of the symbol record register 17' as an address, reads the memory, and sends it to the type conversion circuit 20. The read contents are sent to the type conversion circuit 20.
Then, it is converted into a specified format according to the contents of the type field output from the symbol record register 17, and displayed on the display by the display control circuit 21. That is, when a programmer inputs a command from the keyboard 3 using a symbol or sequence number in a source program, the start address of the language program stored in the memory of the target processor is automatically searched from the symbol or sequence number. The contents of the corresponding address are displayed one after another, and the type is converted and displayed on the display gray. High-level government-paid programmers are able to look at Disgray and learn its contents.

In addition, in the case of memory writing, nine symbols input from the keyboard 3↓ are set in the symbol register 14 via the control circuit 13, and the file search circuit 15 extracts the symbol table 5 according to the symbols and stores the contents in the symbol register 14. Set in record register 17. On the other hand, the write data is set in the write data register 28 via the control circuit 13 and type-converted by the type conversion circuit 29. The type of tights is provided to the type conversion circuit 29 from the type field of the symbol record register 170. Then, under the control of the memory access circuit 18, the output data of the type conversion circuit 29 is written to the corresponding address of the target data processor memory 19 outputted by the address field of the symbol record register 17. Therefore, the Zorogrammer can write arbitrary data to the corresponding address where the target program is stored using the symbol of the source Zorogram using the keyboard 3 as well.

Request to stop when attempting to execute an instruction with a specific symbol or sequence number! When the Rake I India setting command is used, the contents of the address field of the symbol register 17 are set to the breakpoint register 25.
will be transferred to. Thereafter, when the destination processor 23 starts executing the instruction, the contents of the breakpoint register 25 are changed to ! in the destination processor 23. The program counter 24 and the Vζ comparator circuit 26 compare each instruction.

When the comparison circuit 26 detects a match, a signal is sent to the activation stop circuit 27 to stop the operation of the target processor 23. The activation/stopping circuit 27 can also activate or stop the operation of the target processor 23 based on instructions from the control circuit 13 . These instructions to the control circuit 13 are given from the keyboard 3.

Furthermore, in the case of generalization of the program counter, the corresponding information is set in the symbol record register 17 as in the case of memory reading, and the contents of the address field of the symbol record 17 are read into the target processor 23! Set the program counter 24.

Therefore, with Zorogrammer, by specifying a symbol or sequence number, the Dipak support device automatically converts it into a mechanical candy address, so you can denominate it conversationally without having to be aware of the mechanical address. It's very convenient because you can do it. There is no need to rewrite the source zologram each time as in the past, and quick depacking is possible.
It has the ability to improve software productivity.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the essentials of the configuration of the present invention, FIG. 2 is a diagram showing the contents of the symbol table, and FIG. 3 is a block diagram showing the main components of the present invention.
FIG. 2 is a block diagram showing one embodiment of the present invention. In the figure, 1... Dipak support device, 2... Target processor system, 3... Keyboard, 4...
D x f v i, 舊 nee' / 7 yW□ka, 1.
611. Yo7. . Ira, 7...Symbol or sequence number, 8...
r-data f, 9...Machine language address indicating the beginning of the machine program, 1G--data length, 12-keyboard control circuit, 13--control circuit, 14--symbol register, 15...File search circuit, 17...
Symbol record register, 18--Memory access control circuit, 19-Purpose processor memory, 2o#29.
...Tights conversion circuit, 21--Display control circuit, 23--Target processor, 24--L program counter, 25--Break point register, 26--
Comparison circuit, 27--start/stop circuit, 28--write register, 29--tights conversion circuit. Representative Patent Attorney Sumi 1) Toshi So Figure 1 Figure 2

Claims (1)

[Claims] A file search circuit that reads a symbol table that stores machine language addresses and other information corresponding to the symbols or sequence numbers created by the programmer from the original programmer based on the symbols or sequence numbers used by the programmer, and a file search circuit that reads the symbols or sequence numbers input from the keyboard. comprising a symbol register for storing symbols or sequence numbers, and a symbol record register for storing information extracted from the symbol table, and for reading and registering machine addresses output from the symbol record register; The high-level language depacking support device is characterized in that the read/4-input is type-converted according to the type output from the symbol record register.