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C++ Builder 6 --> Linking to Assembly .OBJ Files

Posted on 2006-10-25
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    How to use a C++ Builder 6 application to access data items defined in x86 assembly language files?
     The source code to the .OBJ files are available, as are the .OBJ files themselves.
     The ILINK32 linker is available.
     When viewing the C++ Builder 6 project's folder, there is an .OBJ file with the same name as the project.

     How to use ILINK to link the C++ Builder 6 .OBJ and the assembly language .OBJ files?
     Does a Module Definition File (or anything else) need to be used to define code and data segments during the linking process?
     What are examples of data item definitions (on both the C++ and assembly sides) that allow the C++ project and the assembly files to exchange data?

     I haven't found the information for all this.
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Question by:apx_31088
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2 Comments
 
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pmdw earned 500 total points
ID: 17810687
Hi
I am assuming you have a file eg
myassembler.asm
;with code here
Code_seg@
 Func@  my_assm_func
....
end

you will then need to have a
myassembler.h
/*with func declaration here */
void _FAR * my_assm_func();

Note you will have to look at the calling convention definitions you are using
(ie stdcall,  cdecl )

Then you would add the myassembler.asm file to your project (shift+f11)
When you want to call my_assm_func() you incude the header
  #include "myassembler.h"

The rest of the build and compile is standard cbuilder

Note AFAIK This uses the turbo assmbler (tasm) to compile the .asm files in the build
process this has caused probems in once for me.

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LVL 18

Expert Comment

by:Jose Parrot
ID: 17817067
Hi,

A very complete tutorial on this subject is at http://www2.arnes.si/~ssdudzin/
It isn't specific to Borland Builder C++ but the examples can be adapted to it.

Jose
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