int8_t _note;
int32_t _gate;
int32_t _gate2;
uint8_t _velo;
uint8_t _rvelo;
uint32_t np[attr_endNote - attr_startNote + 1];
uint32_t p;

_gate = 0;
_gate2 = 0;
_note = 0;
p = 1;
int j;
for (j = 0; j < attr_endNote - attr_startNote + 1; j++)
  np[j] = 0;

outlet_note = _note << 21;
outlet_gate = _gate;
outlet_gate2 = _gate2;
_gate2 = _gate;
outlet_velocity = _velo << 20;
outlet_releaseVelocity = _rvelo << 20;

if ((status == MIDI_NOTE_ON + attr_midichannel) && (data2)) {
  if ((data1 >= attr_startNote) && (data1 <= attr_endNote)) {
    _velo = data2;
    _note = data1 - 64;
    _gate = 1 << 27;
    _gate2 = 0;
    np[data1 - attr_startNote] = p++;
  }
} else if (((status == MIDI_NOTE_ON + attr_midichannel) && (!data2)) ||
           (status == MIDI_NOTE_OFF + attr_midichannel)) {
  if ((data1 >= attr_startNote) && (data1 <= attr_endNote)) {
    _rvelo = data2;
    np[data1 - attr_startNote] = 0;
    int j;
    int np2 = 0;
    int n2 = 0;
    for (j = 0; j < attr_endNote - attr_startNote + 1; j++) {
      if (np[j] > np2) {
        np2 = np[j];
        n2 = j;
      }
    }
    if (n2 > 0) {
      int nn = n2 + attr_startNote - 64;
      if (nn != _note) {
        _gate2 = 0;
        _note = nn;
      }
    } else
      _gate = 0;
  }
} else if ((status == attr_midichannel + MIDI_CONTROL_CHANGE) &&
           (data1 == MIDI_C_ALL_NOTES_OFF)) {
  _gate = 0;
}