assembly code in c++ program

Code:

---

#include<iostream.h>
#include<stdio.h>
main()
{
__asm
{
push 10
push 20
}
abc();
__asm
{
add esp,8
}
}
int abc(int i , int j)
{
printf("%d %d\n", i , j);
}

---

when i am executing this code ...the error i am getting is
cannot open program database 'c:\program files\microsoft visual studio\vc98\bin\debug\vc60.pdb'

Do i need to make any special settings to execute this code.....

This:

Code:

---

#include<iostream.h>
int main()
{
  __asm
  {
    push 10
    push 20
  }
  abc();
 
  __asm
  {
    add esp,8
  }

  return 0;
}

int abc(int i , int j)
{
  printf("%d %d\n", i , j);
}

---

Is this:

Code:

---

int main()
{
  abc(10,20);

  return 0;
}

int abc(int i , int j)
{
  printf("%d %d\n", i , j);
}

---

The 10 and 20 parameters may be passed in different order depending on the call type specified for the function.

hi bubba ....

sorry can not make out anything from ur reply .............
are u questioning me about the order of parameters?

as far as my code is concerned .......
this code is equalant to
__asm
{
push 10
push 20
}
abc();

__asm
{
add esp,8
}


int abc(20,10);

I see the last answer is by maxorator and thought he is going to show his assembly skills.

To OP: Make sure you are running program in debug mode.
What compiler are you using?

Quote:

---

Originally Posted by siavoshkc

I see the last answer is by maxorator and thought he is going to show his assembly skills.

---

I am not here to solve problems with in-line assembly used in C++.
Also I am not a Visual C++ expert.

Ask yourself: Is assembly needed? If it isn't, don't use it.

Doesn't the call to the function have to be inside the asm { } blocks? Otherwise, wouldn't it try to call abc() normally, causing a compiler error since no such function exists? Something like:

Code:

---

asm {
push 10
push 20
call abc
add esp, 8
}

---

Be correct? (Perhaps call _abc if the functions have underscores...?) This works for me, but I use MinGW (which uses AT&T syntax instead of Intel (which I personally hate...)). I don't think this will work in MSVC.

Code:

---

#include <stdio.h>

__cdecl void abc(int a, int b)
{
        printf("a = %d, b = %d.\n", a, b);
}

int main()
{
        asm("                                \n\
                pushl $10                \n\
                pushl $30                \n\
                call _abc                \n\
                addl $8, %%esp        \n\
                "
                :
                :
                : "memory");
        return 0;
}

---

No expert here... the only thing I've ever (really) done in assembly was for my TI-83+. And a tiny bit of x86.

I'm telling you all the asm code you have there is the same as doing this in C:

Code:

---

abc(10,20)

---

The compiler will take this line and push the value 20 and 10 onto the stack and then call abc - but more appropriately will probably call an address where abc is instead of actually calling the function name. Compiler assembly code when disassembled is quite confusing.

And no that AT&T syntax will not work on MSVS...thank goodness. AT&T syntax is hideous.

You can call functions from inline asm in MSVS but you cannot call class member functions. This is because the functions don't resolve to an address using the same algo or method as normal C functions. A class is a totally different beastie.

For more information on inline assembly in MSVS consult the MSVS help file. It has an entire section concerning assembly, mixing C/C++ with assembly, allowed data types, addressing modes, class member addressing, etc, etc.

You use

Code:

---

#include <iostream.h>

---

This is dated and most modern compilers will flag an error or a warning. Change it to

Code:

---

#include <iostream>

---

You must be using an old compiler /IDE. Which one is it? There are many good and free updated
ones avalible. One good one is DevC++ and code::blocks. Also, Microsoft have the express edition of MSVC++2005 on download from their site.

Wait for the OP's new post.