Thread: C++ Problem

I have a problem in this function, on the red line:

Code:

void CreateDivTable()
{
  DivTbl[0] = 0x7fffffff;
  DivTbl[1] = 0x7fffffff;
  DivTbl[2] = 0x7fffffff;
  for( int i = 3; i < 10240; i++ )
     DivTbl[i] = (int) ( float(0x100000000 )/ i);

  for (int y=0; y<32; y++)
   for (int x=0; x<32; x++)
    RandomMap[y][x] = rand()%1024;
}

Here's the declaration of DivTbl:

Code:

_EXTORNOT   int     DivTbl[10240];

The error states that:

"integer constant is too large for 'long' type" on the red line, but changing the variable type (To something larger, like long long) has no effect.

Help plz?

Heh nvm.

Had one too many zeros. (0x100000000)

Yeah, that's what I was going to suggest.

That, or this:

Both are the solution, I'm pretty sure.

New problem:

Code:

void Audio_MixSound(int DestAddr, int SrcAddr, int MixLen, int LVolume, int RVolume)
{
_asm {
       mov      edi, DestAddr
       mov      ecx, MixLen
       mov      esi, SrcAddr
     }

SOUND_CYCLE :

_asm {
       movsx    eax, word ptr [esi]
       imul     LVolume
       sar      eax, 16
       mov      bx, word ptr [edi]

       add      ax, bx
       jo       LEFT_CHECK_OVERFLOW
       mov      word ptr [edi], ax
       jmp      CYCLE_RIGHT
 }
LEFT_CHECK_OVERFLOW :
__asm {
       cmp      bx, 0
       js       LEFT_MAX_NEGATIVE
       mov      ax, 32767
       mov      word ptr [edi], ax
       jmp      CYCLE_RIGHT
}
LEFT_MAX_NEGATIVE :
__asm  mov      word ptr [edi], -32767




CYCLE_RIGHT :
__asm {
       movsx    eax, word ptr [esi]
       imul     dword ptr RVolume
       sar      eax, 16
       mov      bx, word ptr [edi+2]

       add      ax, bx
       jo       RIGHT_CHECK_OVERFLOW
       mov      word ptr [edi+2], ax
       jmp      CYCLE_CONTINUE
}
RIGHT_CHECK_OVERFLOW :
__asm {
       cmp      bx, 0
       js       RIGHT_MAX_NEGATIVE
       mov      word ptr [edi+2], 32767
       jmp      CYCLE_CONTINUE
}
RIGHT_MAX_NEGATIVE :
__asm  mov      word ptr [edi+2], -32767

CYCLE_CONTINUE :
__asm {
       add      edi, 4
       add      esi, 2
       dec      ecx
       jnz      SOUND_CYCLE
}

My compiler (MinGW) doesn't recognize _asm; What linker/ compiler command do I need for this...?

the GCC (including MinGW & Cygwin on Windows) uses the AT&T (UNIX) assembly format
while MS uses the Intel format

http://www.ibiblio.org/gferg/ldp/GCC...-HOWTO.html#s4

btw,
any particular reason you're using inline assembly?

Oh well shit.

I'm not going to re-write 3000 Assembly functions!

I'll use the compiler the code was originally used with then...

I think GNU is the standard. I know that you can do _asm with GNU.

Also, are you doing command line compilation? I think you have to add a whole ton of crap to the make to do inline assembly.

Also, maybe it's different for your compiler, but I always use references for parameters in inline assembly. I don't remember if you need to do that with GNU, I know one of them required you to do that.

Code:

mov      edi, [DestAddr]
       mov      ecx, [MixLen]
       mov      esi, [SrcAddr]

Why are you using your own sound routines? It might be easier to use OpenAL

So I can or I can't keep the functions as-is?

I didn't write the Assembly code-- This is apart of a game enginge I'm editing and adding to.