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| author | Nils Wallménius <nils@rockbox.org> | 2011-06-05 13:12:51 +0000 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2011-06-05 13:12:51 +0000 |
| commit | 965113ed5051d3e9e4b563b8da1f5523c5470a76 (patch) | |
| tree | ea3f7922e5075a96e21fa44e4c78f8a0df56c378 /apps/codecs/lib/codeclib_misc.h | |
| parent | 9f65f2b6adc24964ac3fe03a75616fab96769bb7 (diff) | |
| download | rockbox-965113ed5051d3e9e4b563b8da1f5523c5470a76.zip rockbox-965113ed5051d3e9e4b563b8da1f5523c5470a76.tar.gz rockbox-965113ed5051d3e9e4b563b8da1f5523c5470a76.tar.bz2 rockbox-965113ed5051d3e9e4b563b8da1f5523c5470a76.tar.xz | |
FS#12146: Fix libcook bugs introduced in r22055 by Sean Bartell.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29973 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/lib/codeclib_misc.h')
| -rw-r--r-- | apps/codecs/lib/codeclib_misc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/apps/codecs/lib/codeclib_misc.h b/apps/codecs/lib/codeclib_misc.h index f3ec209..f3b1805 100644 --- a/apps/codecs/lib/codeclib_misc.h +++ b/apps/codecs/lib/codeclib_misc.h @@ -65,6 +65,7 @@ static inline int32_t MULT32(int32_t x, int32_t y) { magic.whole = (int64_t)x * y; return magic.halves.hi; } + static inline int32_t MULT31(int32_t x, int32_t y) { return MULT32(x,y)<<1; } @@ -75,6 +76,12 @@ static inline int32_t MULT31_SHIFT15(int32_t x, int32_t y) { return ((uint32_t)(magic.halves.lo)>>15) | ((magic.halves.hi)<<17); } +static inline int32_t MULT31_SHIFT16(int32_t x, int32_t y) { + union magic magic; + magic.whole = (int64_t)x * y; + return ((uint32_t)(magic.halves.lo)>>16) | ((magic.halves.hi)<<16); +} + #else /* 32 bit multiply, more portable but less accurate */ |