114                 fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
122                 yr = data[j];  in MATHi_FFT()
124                 data[i] = xr + yr;  in MATHi_FFT()
126                 data[j] = xr - yr;  in MATHi_FFT()
152                         fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
164                             yr = t - FX_Mul(w1, xi);  in MATHi_FFT()
170                         data[i] = xr + yr;  in MATHi_FFT()
172                         data[j] = xr - yr;  in MATHi_FFT()
182                         fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
190                         yr = data[j];  in MATHi_FFT()
197                         data[i + 1] = xi - yr;  in MATHi_FFT()
199                         data[j + 1] = xi + yr;  in MATHi_FFT()
266                 fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
274                 yr = data[j];  in MATHi_IFFT()
276                 data[i] = xr + yr;  in MATHi_IFFT()
278                 data[j] = xr - yr;  in MATHi_IFFT()
300                         fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
312                             yr = t - FX_Mul(w1, xi);  in MATHi_IFFT()
318                         data[i] = xr + yr;  in MATHi_IFFT()
320                         data[j] = xr - yr;  in MATHi_IFFT()
330                         fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
338                         yr = data[j];  in MATHi_IFFT()
341                         data[i + 1] = xi + yr;  in MATHi_IFFT()
343                         data[j + 1] = xi - yr;  in MATHi_IFFT()
398                     fx32    xr, xi, yr, yi;
405                     yr = data[j];
407                     data[i] = xr + yr;
409                     data[j] = xr - yr;
427                         fx32    xr, xi, yr, yi;
440                             yr = t - FX_Mul(wr + wi, xi);
446                         data[ik] = xr + yr;
448                         data[j] = xr - yr;
524         fx32    xr, xi, yr, yi, zr, zi;  in MATH_FFTReal()  local
539             yr = (d1r + d2r) >> 1;  in MATH_FFTReal()
553         data[i] = yr + xr;  in MATH_FFTReal()
555         data[j] = yr - xr;  in MATH_FFTReal()
593         fx32    yr, yi, zr, zi, xr, xi;  in MATH_IFFTReal()  local
608             yr = (d1r + d2r);  in MATH_IFFTReal()
622         data[i] = yr + xr;  in MATH_IFFTReal()
624         data[j] = yr - xr;  in MATH_IFFTReal()