C++ (Cpp) Drum Examples

Example #1

File: SN76489.c Project: Way310/iPadZ89Emu

void Sync76489(SN76489 *D,byte Sync)
{
  register int J,I;

  /* Hit MIDI drums for noise channels, if requested */
  if(Sync&SN76489_DRUMS)
  {
    if(D->Volume[3]&&D->Freq[3]) Drum(DRM_MIDI|28,D->Volume[3]);
    Sync&=~SN76489_DRUMS;
  }

  if(Sync!=SN76489_FLUSH) D->Sync=Sync;

  for(J=0,I=D->Changed;I&&(J<SN76489_CHANNELS);J++,I>>=1)
    if(I&1) Sound(J+D->First,D->Freq[J],D->Volume[J]);

  D->Changed=0x00;
}

Example #2

File: AY8910.c Project: mp-lee/emulib

void Sync8910(register AY8910 *D,register byte Sync)
{
  register int J,I;

  /* Hit MIDI drums for noise channels, if requested */
  if(Sync&AY8910_DRUMS)
  {
    Sync&=~AY8910_DRUMS;
    J=0;
    if(D->Volume[3]&&D->Freq[3]) J+=D->Volume[3];
    if(D->Volume[4]&&D->Freq[4]) J+=D->Volume[4];
    if(D->Volume[5]&&D->Freq[5]) J+=D->Volume[5];
    if(J) Drum(DRM_MIDI|28,(J+2)/3);
  }

  if(Sync!=AY8910_FLUSH) D->Sync=Sync;

  for(J=0,I=D->Changed;I&&(J<AY8910_CHANNELS);J++,I>>=1)
    if(I&1) Sound(J+D->First,D->Freq[J],D->Volume[J]);

  D->Changed=0x00;
}