114                 fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
123                 yi = data[j + 1];  in MATHi_FFT()
125                 data[i + 1] = xi + yi;  in MATHi_FFT()
127                 data[j + 1] = xi - yi;  in MATHi_FFT()
152                         fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
165                             yi = t - FX_Mul(w2, xr);  in MATHi_FFT()
171                         data[i + 1] = xi + yi;  in MATHi_FFT()
173                         data[j + 1] = xi - yi;  in MATHi_FFT()
182                         fx32    xr, xi, yr, yi;  in MATHi_FFT()  local
191                         yi = data[j + 1];  in MATHi_FFT()
196                         data[i] = xr + yi;  in MATHi_FFT()
198                         data[j] = xr - yi;  in MATHi_FFT()
266                 fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
275                 yi = data[j + 1];  in MATHi_IFFT()
277                 data[i + 1] = xi + yi;  in MATHi_IFFT()
279                 data[j + 1] = xi - yi;  in MATHi_IFFT()
300                         fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
313                             yi = t - FX_Mul(w2, xr);  in MATHi_IFFT()
319                         data[i + 1] = xi + yi;  in MATHi_IFFT()
321                         data[j + 1] = xi - yi;  in MATHi_IFFT()
330                         fx32    xr, xi, yr, yi;  in MATHi_IFFT()  local
339                         yi = data[j + 1];  in MATHi_IFFT()
340                         data[i] = xr - yi;  in MATHi_IFFT()
342                         data[j] = xr + yi;  in MATHi_IFFT()
398                     fx32    xr, xi, yr, yi;
406                     yi = data[j + 1];
408                     data[i + 1] = xi + yi;
410                     data[j + 1] = xi - yi;
427                         fx32    xr, xi, yr, yi;
441                             yi = t - FX_Mul(wr - wi, xr);
447                         data[ik + 1] = xi + yi;
449                         data[j + 1] = xi - yi;
524         fx32    xr, xi, yr, yi, zr, zi;  in MATH_FFTReal()  local
540             yi = (d1i - d2i) >> 1;  in MATH_FFTReal()
554         data[i + 1] = yi + xi;  in MATH_FFTReal()
556         data[j + 1] = -yi + xi;  in MATH_FFTReal()
593         fx32    yr, yi, zr, zi, xr, xi;  in MATH_IFFTReal()  local
609             yi = (d1i - d2i);  in MATH_IFFTReal()
623         data[i + 1] = yi + xi;  in MATH_IFFTReal()
625         data[j + 1] = -yi + xi;  in MATH_IFFTReal()