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| author | Måns Rullgård <mans@mansr.com> | 2009-05-04 17:31:15 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-05-04 17:31:15 +0000 |
| commit | 3737dd1cd31f72afa905c5efed7dc1d605813229 (patch) | |
| tree | e41995699b92c1694683280135fa589921ab5bcb /COPYING.GPL | |
| parent | e2fa5cf4c96391e82848e078e6a1e40f41c2ea2d (diff) | |
PPC: implement MULH() in assembler
Left to its own devices, gcc calculates the full 64-bit product only to
discard the low 32 bits. This forces it to do the right thing.
20% faster MP3 decoding on G4.
Originally committed as revision 18737 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'COPYING.GPL')
0 files changed, 0 insertions, 0 deletions