forked from len0rd/rockbox
888e05ec12
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
78 lines
3 KiB
C
78 lines
3 KiB
C
/*Copyright (c) 2013, Xiph.Org Foundation and contributors.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.*/
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#ifndef KISS_FFT_CF_H
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#define KISS_FFT_CF_H
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#if !defined(KISS_FFT_GUTS_H)
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#error "This file should only be included from _kiss_fft_guts.h"
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#endif
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#ifdef FIXED_POINT
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#undef C_MUL
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#define C_MUL(m,a,b) \
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{ \
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asm volatile("move.l (%[bp]), %%d2;" \
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"clr.l %%d3;" \
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"move.w %%d2, %%d3;" \
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"swap %%d3;" \
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"clr.w %%d2;" \
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"movem.l (%[ap]), %%d0-%%d1;" \
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"mac.l %%d0, %%d2, %%acc0;" \
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"msac.l %%d1, %%d3, %%acc0;" \
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"mac.l %%d1, %%d2, %%acc1;" \
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"mac.l %%d0, %%d3, %%acc1;" \
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"movclr.l %%acc0, %[mr];" \
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"movclr.l %%acc1, %[mi];" \
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: [mr] "=r" ((m).r), [mi] "=r" ((m).i) \
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: [ap] "a" (&(a)), [bp] "a" (&(b)) \
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: "d0", "d1", "d2", "d3", "cc"); \
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}
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#undef C_MULC
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#define C_MULC(m,a,b) \
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{ \
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asm volatile("move.l (%[bp]), %%d2;" \
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"clr.l %%d3;" \
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"move.w %%d2, %%d3;" \
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"swap %%d3;" \
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"clr.w %%d2;" \
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"movem.l (%[ap]), %%d0-%%d1;" \
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"mac.l %%d0, %%d2, %%acc0;" \
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"mac.l %%d1, %%d3, %%acc0;" \
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"mac.l %%d1, %%d2, %%acc1;" \
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"msac.l %%d0, %%d3, %%acc1;" \
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"movclr.l %%acc0, %[mr];" \
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"movclr.l %%acc1, %[mi];" \
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: [mr] "=r" ((m).r), [mi] "=r" ((m).i) \
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: [ap] "a" (&(a)), [bp] "a" (&(b)) \
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: "d0", "d1", "d2", "d3", "cc"); \
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}
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#endif /* FIXED_POINT */
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#endif /* KISS_FFT_CF_H */
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