122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
/*Copyright (c) 2013, Xiph.Org Foundation and contributors.
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.*/
|
|
|
|
#ifndef KISS_FFT_ARMv4_H
|
|
#define KISS_FFT_ARMv4_H
|
|
|
|
#if !defined(KISS_FFT_GUTS_H)
|
|
#error "This file should only be included from _kiss_fft_guts.h"
|
|
#endif
|
|
|
|
#ifdef OPUS_FIXED_POINT
|
|
|
|
#undef C_MUL
|
|
#define C_MUL(m,a,b) \
|
|
do{ \
|
|
int br__; \
|
|
int bi__; \
|
|
int tt__; \
|
|
__asm__ __volatile__( \
|
|
"#C_MUL\n\t" \
|
|
"ldrsh %[br], [%[bp], #0]\n\t" \
|
|
"ldm %[ap], {r0,r1}\n\t" \
|
|
"ldrsh %[bi], [%[bp], #2]\n\t" \
|
|
"smull %[tt], %[mi], r1, %[br]\n\t" \
|
|
"smlal %[tt], %[mi], r0, %[bi]\n\t" \
|
|
"rsb %[bi], %[bi], #0\n\t" \
|
|
"smull %[br], %[mr], r0, %[br]\n\t" \
|
|
"mov %[tt], %[tt], lsr #15\n\t" \
|
|
"smlal %[br], %[mr], r1, %[bi]\n\t" \
|
|
"orr %[mi], %[tt], %[mi], lsl #17\n\t" \
|
|
"mov %[br], %[br], lsr #15\n\t" \
|
|
"orr %[mr], %[br], %[mr], lsl #17\n\t" \
|
|
: [mr]"=r"((m).r), [mi]"=r"((m).i), \
|
|
[br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
|
|
: [ap]"r"(&(a)), [bp]"r"(&(b)) \
|
|
: "r0", "r1" \
|
|
); \
|
|
} \
|
|
while(0)
|
|
|
|
#undef C_MUL4
|
|
#define C_MUL4(m,a,b) \
|
|
do{ \
|
|
int br__; \
|
|
int bi__; \
|
|
int tt__; \
|
|
__asm__ __volatile__( \
|
|
"#C_MUL4\n\t" \
|
|
"ldrsh %[br], [%[bp], #0]\n\t" \
|
|
"ldm %[ap], {r0,r1}\n\t" \
|
|
"ldrsh %[bi], [%[bp], #2]\n\t" \
|
|
"smull %[tt], %[mi], r1, %[br]\n\t" \
|
|
"smlal %[tt], %[mi], r0, %[bi]\n\t" \
|
|
"rsb %[bi], %[bi], #0\n\t" \
|
|
"smull %[br], %[mr], r0, %[br]\n\t" \
|
|
"mov %[tt], %[tt], lsr #17\n\t" \
|
|
"smlal %[br], %[mr], r1, %[bi]\n\t" \
|
|
"orr %[mi], %[tt], %[mi], lsl #15\n\t" \
|
|
"mov %[br], %[br], lsr #17\n\t" \
|
|
"orr %[mr], %[br], %[mr], lsl #15\n\t" \
|
|
: [mr]"=r"((m).r), [mi]"=r"((m).i), \
|
|
[br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
|
|
: [ap]"r"(&(a)), [bp]"r"(&(b)) \
|
|
: "r0", "r1" \
|
|
); \
|
|
} \
|
|
while(0)
|
|
|
|
#undef C_MULC
|
|
#define C_MULC(m,a,b) \
|
|
do{ \
|
|
int br__; \
|
|
int bi__; \
|
|
int tt__; \
|
|
__asm__ __volatile__( \
|
|
"#C_MULC\n\t" \
|
|
"ldrsh %[br], [%[bp], #0]\n\t" \
|
|
"ldm %[ap], {r0,r1}\n\t" \
|
|
"ldrsh %[bi], [%[bp], #2]\n\t" \
|
|
"smull %[tt], %[mr], r0, %[br]\n\t" \
|
|
"smlal %[tt], %[mr], r1, %[bi]\n\t" \
|
|
"rsb %[bi], %[bi], #0\n\t" \
|
|
"smull %[br], %[mi], r1, %[br]\n\t" \
|
|
"mov %[tt], %[tt], lsr #15\n\t" \
|
|
"smlal %[br], %[mi], r0, %[bi]\n\t" \
|
|
"orr %[mr], %[tt], %[mr], lsl #17\n\t" \
|
|
"mov %[br], %[br], lsr #15\n\t" \
|
|
"orr %[mi], %[br], %[mi], lsl #17\n\t" \
|
|
: [mr]"=r"((m).r), [mi]"=r"((m).i), \
|
|
[br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
|
|
: [ap]"r"(&(a)), [bp]"r"(&(b)) \
|
|
: "r0", "r1" \
|
|
); \
|
|
} \
|
|
while(0)
|
|
|
|
#endif /* FIXED_POINT */
|
|
|
|
#endif /* KISS_FFT_ARMv4_H */
|