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typedef struct
{
  unsigned int  code;      RT_INPUT_EMPTY = 0xFF000001
  unsigned int  sender;    unused
  unsigned int  stream;    buffer handle
  unsigned int  offset;
  unsigned int  size;      unused
  unsigned int  unused;
}SND_EVENT;     

void GetNotify( SND_EVENT *event)
{
 _asm
 {
   mov eax, 68
   mov ebx, 14
   mov ecx, [event]
   int 0x40
}

SND_EVENT evnt;

  if (err = CreateBuffer(PCM_2_16_11|PCM_RING,0, &hMixBuff))
  {
    printf("Error %x sound not available\n\r", err);
    exit();
  }
  
  if(err = GetBufferSize(hMixBuff, &mix_size))
  {
    printf("Error %x get buffer size\n\r", err);
    printf("size = %x\n\r", mix_size);
    exit();
  };
  mix_size= mix_size/2;      //буфер поделён на две половины
      
  printf("mixer size %d\n\r", mix_size);

  if(err=PlayBuffer(hMixBuff, 0))
  {
    printf("Error %x play buffer\n\r", err);
    exit()
  }
  
  mixbuffer = malloc(mix_size);
  
  while(sound_state)
  {
     GetNotify(&evnt);

     if(evnt.code != 0xFF000001)
     {
       printf("invalid code %d\n\r", evnt.code);
       continue; 
     }    
     
     if(evnt.stream != hMixBuff)
     {
       printf("invalid stream %d hMixBuff= %d\n\r", evnt.stream, hMixBuff);
       continue; 
     };
     mix_offset= evnt.offset;
     I_UpdateSound();
  };
 
I_UpdateSound()
{
  //заполняем mixbuffer семплами
  ...
  ...
  ...
  //
  SetBuffer(hMixBuff,mixbuffer,mix_offset,mix_size);
}

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Process - forced terminate INT: 0000000E
Process - forced terminate PID: 0000002F
Process - forced terminate EIP: 8001F866

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detect hardware...
MENUET01 NForce 2
init codec
global control 00000008
global status  00310000
cold reset
reset complete
C-Media Electronics
CMI9739
create primary buffer

Code: Select all

NVidiaNForce 2
PCI command 00000007
PCI status  000000B0
code io base       0000D001
controller io base 0000D401
codec mmio base      DB000000
controller mmio base 00000000
global control 00000008
global status  00310000
cold reset
global control 00000002
global status  00310100
reset complete
C-Media Electronics
CMI9739
create primary buffer