ASM Community

Hi I am writing an assembly procedure as shown below,

;addASM.asm

.model medium

.code

public _add

_add proc far
    push bp
mov bp, sp
mov ax,
mov bx,
add ax, bx
xor dx, dx
pop bp
ret
_add endp

end


Now I want to call this _add procedure in C code,


//mainFile.c

#include<stdio.h>
#include<conio.h>


extern int add(int, int);

void main()
{
int num1, num2, output;

    num1 = 5; // initialize the first number
num2 = 7; // initialize the second number
output = 0; // initialize the output to zero

output = add(num1,num2);

printf("result = %d",output);

getch();
}     


I assembled the addASM.asm file using MASM as
C:\ex>ml /c addASM.asm
Microsoft (R) Macro Assembler Version 6.14.8444
Copyright (C) Microsoft Corp 1981-1997.  All rights reserved.

Assembling: addASM.asm

and I got the OBJ file addASM.obj
I then compiled mainFile.c and addASM.obj using Borland C++ 3.1 as
C:\bc\BIN>bcc -IC:\bc\INCLUDE -LC:\bc\LIB mainFile.c addASM.obj
Borland C++  Version 3.1 Copyright (c) 1992 Borland International
mainfile.c:
Turbo Link  Version 5.1 Copyright (c) 1992 Borland International
Error: Fixup overflow at _TEXT:001A, target = _add in module mainfile.c

        Available memory 4201624 
Now what is : Error: Fixup overflow at _TEXT:001A, target = _add in module mainfile.c


Please help me how to use far assembly procedures in c, please send me code as it will be good for better understanding for me.

Please help me it is urgent.

Thanks in advance. Please help me.