bool rec;
bool play;

int recpos;
int length;
uint32_t input;
uint32_t data;

int playpos;
int shift;

playpos = 0;
recpos = 0;
rec = 0;
play = 0;

// record
if ((inlet_rec) && !rec) {
  rec = 1;
  recpos = 0;
  playpos = 0;
} else if (!(inlet_rec)) {
  rec = 0;
  length = recpos;
}

// play
play = (!rec);

// set 'shift factor' for storing the recording length/the sync output
if (attr_table.LENGTH == 8192) {
  shift = 14;
}
if (attr_table.LENGTH == 16384) {
  shift = 13;
}
if (attr_table.LENGTH == 32768) {
  shift = 12;
}
if (attr_table.LENGTH == 65536) {
  shift = 11;
}
if (attr_table.LENGTH == 131072) {
  shift = 10;
}
if (attr_table.LENGTH == 262144) {
  shift = 9;
}
if (attr_table.LENGTH == 524288) {
  shift = 8;
}
if (attr_table.LENGTH == 1048576) {
  shift = 7;
}

// input
input = (__SSAT((inlet_wave), 28));

// record
if (rec) {
  if (recpos < (attr_table.LENGTH - 1))
    attr_table.array[recpos++] = input;
  attr_table.array[attr_table.LENGTH - 1] = (recpos << shift);
}

// play
if (inlet_play) {
  if (!(playpos == ((attr_table.array[attr_table.LENGTH - 1]) >> shift)))
    playpos == playpos++;
  else
    playpos = 0;
} else
  playpos = 0;

// feedback
data = ___SMMUL((attr_table.array[playpos]) << 3, inlet_feedback << 2);
attr_table.array[playpos] = data;

outlet_wave = (data * play);

// overdub
if (inlet_dub && play) {
  attr_table.array[playpos] = (data + input);
}