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Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27706 a1c6a512-1295-4272-9138-f99709370657
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27705 a1c6a512-1295-4272-9138-f99709370657
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(~0.05MHz) on a 320kbps sample, and ~0.03MHz slowdown for Coldfire on a 55kbps sample.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27702 a1c6a512-1295-4272-9138-f99709370657
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scaled down first by (log2(frame_size) - 3). Increases decoding speed by 1.3MHz on PP5022 and saves ~32KB that were previously needed by the mdct tables. (FS#11511 by Buschel and myself)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27701 a1c6a512-1295-4272-9138-f99709370657
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Coldfire CPUs. Introduce asm routines for multiplications, move arrays with major impact on decoding speed to IRAM. Speeds up decoding by 25% on PP5022 and 34% on mcf5249.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27582 a1c6a512-1295-4272-9138-f99709370657
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Currently inverse quantization & rescaling,
imdct and windowing are all in fixed point.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27302 a1c6a512-1295-4272-9138-f99709370657
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