int16_t y[32];

if (inlet_update) {
  for (int i = 0; i < 16; i++) {
    int p = i * 256;
    int32_t v = ___SMMLA(
        param_h1, sine2t[p],
        ___SMMLS(
            param_h2, sine2t[(2 * p) & 4095],
            ___SMMLA(
                param_h3, sine2t[(3 * p) & 4095],
                ___SMMLS(
                    param_h4, sine2t[(4 * p) & 4095],
                    ___SMMLA(param_h5, sine2t[(5 * p) & 4095],
                             ___SMMLS(param_h6, sine2t[(6 * p) & 4095],
                                      ___SMMLA(param_h7, sine2t[(7 * p) & 4095],
                                               ___SMMUL(param_h8,
                                                        sine2t[(8 * p + 1024) &
                                                               4095]))))))));
    v = __SSAT(v >> 12, 16);
    y[i * 2] = (int16_t)v;
  }
  // connect the dots.. or not
  int32_t a = abs(param_interp);
  if (a >= 0x07F70000)
    a = 0x07F70000;
  for (int i2 = 1; i2 <= 31; i2 += 2) {
    y[i2] =
        ___SMMLA(a, y[(i2 + 1) & 31] - y[(i2 - 1) & 31], y[(i2 - 1) & 31] >> 5)
        << 5;
  }
  if (param_interp < 0) { // reversed
    for (int i2 = 0; i2 <= 31; i2 += 2) {
      int32_t t = y[i2 + 1];
      y[i2 + 1] = y[i2];
      y[i2] = t; // swap
    }
  }
}
// pack
int16_t *wf16 = (int16_t *)outlet_wf16;
for (int i = 0; i < 32; i++)
  wf16[i] = y[i];