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FFT_simd_store in inline asm kombiniert

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unknown 2015-03-10 15:13:19 +01:00
parent 04828296f7
commit 63d2e97638
1 changed files with 9 additions and 2 deletions
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11
fft.c
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@ -37,6 +37,14 @@
#include <stdio.h> #include <stdio.h>
#define FFT_combined_store(_fr, _fi, _i, _simd_r, _simd_i) \
asm ("{" "\n" \
" fft_simd_store %1, %0, %2" "\n" \
" nop" "\n" \
" fft_simd_store %3, %0, %4" "\n" \
"}" \
:: "r" (_i), "r" (_fr), "r" (_simd_r), "r" (_fi), "r" (_simd_i));
/* /*
* fix_fft() - perform fast Fourier transform. * fix_fft() - perform fast Fourier transform.
* *
@ -122,8 +130,7 @@ int fix_fft(fixed fr[], fixed fi[], int m, int inverse)
simd_r = FFT_simd_load(fr, i); simd_r = FFT_simd_load(fr, i);
simd_i = FFT_simd_load(fi, i); simd_i = FFT_simd_load(fi, i);
FFT_simd_first(simd_r, simd_i, (xtbool) shift); FFT_simd_first(simd_r, simd_i, (xtbool) shift);
FFT_simd_store(fr, i, simd_r); FFT_combined_store(fr, fi, i, simd_r, simd_i);
FFT_simd_store(fi, i, simd_i);
} }
} }
else else