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| author | Nils Wallménius <nils@rockbox.org> | 2014-07-13 11:49:34 +0200 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2014-07-13 11:49:34 +0200 |
| commit | 888e05ec12f573cfbef0d331888e68808763a84b (patch) | |
| tree | 930ebc33f00af0638e32097633f9687358697074 | |
| parent | 9b7ec42403073ee887efc531c153e6b1b6c15bab (diff) | |
| download | rockbox-888e05e.tar.gz rockbox-888e05e.zip | |
libopus: asm C_MUL for coldfire
The recent merge of upstream changed the fft to use C_MUL which
wasn't implemented in asm for coldfire.
Speeds up decoding 64 kbps test file by 2.68 MHz and 128 kbps
test file by 2.80 MHz on H300.
Change-Id: I8b61fc0f9568d6350431e311a12e44fe4f60f72e
| -rw-r--r-- | lib/rbcodec/codecs/libopus/celt/cf/kiss_fft_cf.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/cf/kiss_fft_cf.h b/lib/rbcodec/codecs/libopus/celt/cf/kiss_fft_cf.h index fe0fe2f3ca..74f14fb9e1 100644 --- a/lib/rbcodec/codecs/libopus/celt/cf/kiss_fft_cf.h +++ b/lib/rbcodec/codecs/libopus/celt/cf/kiss_fft_cf.h @@ -32,6 +32,27 @@ #ifdef FIXED_POINT +#undef C_MUL +#define C_MUL(m,a,b) \ + { \ + asm volatile("move.l (%[bp]), %%d2;" \ + "clr.l %%d3;" \ + "move.w %%d2, %%d3;" \ + "swap %%d3;" \ + "clr.w %%d2;" \ + "movem.l (%[ap]), %%d0-%%d1;" \ + "mac.l %%d0, %%d2, %%acc0;" \ + "msac.l %%d1, %%d3, %%acc0;" \ + "mac.l %%d1, %%d2, %%acc1;" \ + "mac.l %%d0, %%d3, %%acc1;" \ + "movclr.l %%acc0, %[mr];" \ + "movclr.l %%acc1, %[mi];" \ + : [mr] "=r" ((m).r), [mi] "=r" ((m).i) \ + : [ap] "a" (&(a)), [bp] "a" (&(b)) \ + : "d0", "d1", "d2", "d3", "cc"); \ + } + + #undef C_MULC #define C_MULC(m,a,b) \ { \ |