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/TwlSDK-5.2.1/build/demos/math/fft-1/src/
Dmain.c51 static fx32 gFFTCos[FFT_N], gFFTSin[FFT_N]; variable
544 gFFTCos[i] = data[i * 2];
554 t = gFFTCos[i];
555 gFFTCos[i] = gFFTCos[j];
556 gFFTCos[j] = t;
574 dx = FX_Mul(s, gFFTSin[ik]) + FX_Mul(c, gFFTCos[ik]);
575 dy = FX_Mul(c, gFFTSin[ik]) - FX_Mul(s, gFFTCos[ik]);
576 gFFTCos[ik] = gFFTCos[i] - dx;
577 gFFTCos[i] += dx;
589 data[i * 2] = gFFTCos[i] >> nShift;
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