static const uint32_t NBH = 16;
uint32_t t_p[NBH];
int32_t t_g[NBH];

uint32_t getDp(int h) { return attr_ctlPch.getDp(h); }
// anti aliasing
uint32_t getGain(int h) {
  if (getDp(h) > 0x007FFFFFU)
    return 0;
  else
    return attr_ctlAmp.getGain(h);
}

for (int h = 0; h < NBH; h++) {
  t_p[h] = 0;
  t_g[h] = 0;
}

uint32_t p = t_p[0];
int32_t g = t_g[0];
uint32_t dp = getDp(0);
for (int i = 0; i < BUFSIZE; i++) {
  p += dp;
  if (p > 0x00FFFFFF) {
    p &= 0x00FFFFFF;
    g = getGain(0);
  }
  outlet_out[i] = ___SMMUL(sine2t[(p >> 12U) & 4095], g);
}
t_p[0] = p;
t_g[0] = g;

for (int h = 1; h < NBH; h++) {
  uint32_t p = t_p[h];
  int32_t g = t_g[h];
  uint32_t dp = getDp(h);
  for (int i = 0; i < BUFSIZE; i++) {
    p += dp;
    if (p > 0x00FFFFFF) {
      p &= 0x00FFFFFF;
      g = getGain(h);
    }
    outlet_out[i] = ___SMMLA(sine2t[(p >> 12U) & 4095], g, outlet_out[i]);
  }
  t_p[h] = p;
  t_g[h] = g;
}