92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/***********************************************************************
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Copyright (c) 2006-2011, Skype Limited. 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
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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
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notice, 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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- Neither the name of Internet Society, IETF or IETF Trust, nor the
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names of specific contributors, may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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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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***********************************************************************/
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#ifndef __SILK_MACROS_MIPSR1_H__
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#define __SILK_MACROS_MIPSR1_H__
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#define mips_clz(x) __builtin_clz(x)
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#undef silk_SMULWB
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static inline int silk_SMULWB(int a, int b)
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{
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long long ac;
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int c;
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ac = __builtin_mips_mult(a, (opus_int32)(opus_int16)b);
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c = __builtin_mips_extr_w(ac, 16);
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return c;
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}
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#undef silk_SMLAWB
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#define silk_SMLAWB(a32, b32, c32) ((a32) + silk_SMULWB(b32, c32))
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#undef silk_SMULWW
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static inline int silk_SMULWW(int a, int b)
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{
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long long ac;
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int c;
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ac = __builtin_mips_mult(a, b);
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c = __builtin_mips_extr_w(ac, 16);
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return c;
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}
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#undef silk_SMLAWW
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static inline int silk_SMLAWW(int a, int b, int c)
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{
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long long ac;
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int res;
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ac = __builtin_mips_mult(b, c);
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res = __builtin_mips_extr_w(ac, 16);
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res += a;
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return res;
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}
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#define OVERRIDE_silk_CLZ16
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static inline opus_int32 silk_CLZ16(opus_int16 in16)
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{
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int re32;
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opus_int32 in32 = (opus_int32 )in16;
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re32 = mips_clz(in32);
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re32-=16;
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return re32;
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}
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#define OVERRIDE_silk_CLZ32
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static inline opus_int32 silk_CLZ32(opus_int32 in32)
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{
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int re32;
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re32 = mips_clz(in32);
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return re32;
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}
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#endif /* __SILK_MACROS_MIPSR1_H__ */
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