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| author | Delyan Kratunov <delyan.kratunov@gmail.com> | 2010-05-02 20:32:41 +0000 |
|---|---|---|
| committer | Delyan Kratunov <delyan.kratunov@gmail.com> | 2010-05-02 20:32:41 +0000 |
| commit | bc90a616c3f1425c75289a9f1d4d9f1170af33a2 (patch) | |
| tree | 8b6a83739aa1a9d22d8e4337e82b89350a372c6d | |
| parent | af466f3cbfc718c0539f2cf7743d614ecf6cd159 (diff) | |
| download | rockbox-bc90a616c3f1425c75289a9f1d4d9f1170af33a2.tar.gz rockbox-bc90a616c3f1425c75289a9f1d4d9f1170af33a2.zip | |
FFT plugin: The 64-bit sqrt function is no longer needed
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25791 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | apps/plugins/fft/math.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/apps/plugins/fft/math.c b/apps/plugins/fft/math.c deleted file mode 100644 index c00804fcc8..0000000000 --- a/apps/plugins/fft/math.c +++ /dev/null @@ -1,13 +0,0 @@ -#include "math.h" - -int64_t fsqrt64(int64_t a, unsigned int fracbits) -{ - int64_t b = a/2 + (1 << fracbits); /* initial approximation */ - unsigned int n; - const unsigned int iterations = 3; /* very rough approximation */ - - for (n = 0; n < iterations; ++n) - b = (b + (((int64_t)(a) << fracbits)/b))/2; - - return b; -} |