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/AliOS-Things-master/hardware/chip/rtl872xd/sdk/component/soc/realtek/amebad/cmsis-dsp/Source/TransformFunctions/
A Darm_rfft_fast_f32.c40 float32_t xAR, xAI, xBR, xBI; /* temporary variables */ in stage_rfft_f32() local
49 xBR = pB[0]; in stage_rfft_f32()
58 t1a = xBR + xAR ; in stage_rfft_f32()
90 xBR = pB[0]; in stage_rfft_f32()
97 t1a = xBR - xAR ; in stage_rfft_f32()
107 *pOut++ = 0.5f * (xAR + xBR + p0 + p3 ); //xAR in stage_rfft_f32()
126 float32_t xAR, xAI, xBR, xBI; /* temporary variables */ in merge_rfft_f32() local
148 xBR = pB[0] ; in merge_rfft_f32()
155 t1a = xAR - xBR ; in merge_rfft_f32()
165 *pOut++ = 0.5f * (xAR + xBR - r - s ); //xAR in merge_rfft_f32()

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