cannam@154: /***********************************************************************
cannam@154: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
cannam@154: Redistribution and use in source and binary forms, with or without
cannam@154: modification, are permitted provided that the following conditions
cannam@154: are met:
cannam@154: - Redistributions of source code must retain the above copyright notice,
cannam@154: this list of conditions and the following disclaimer.
cannam@154: - Redistributions in binary form must reproduce the above copyright
cannam@154: notice, this list of conditions and the following disclaimer in the
cannam@154: documentation and/or other materials provided with the distribution.
cannam@154: - Neither the name of Internet Society, IETF or IETF Trust, nor the
cannam@154: names of specific contributors, may be used to endorse or promote
cannam@154: products derived from this software without specific prior written
cannam@154: permission.
cannam@154: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cannam@154: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cannam@154: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
cannam@154: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
cannam@154: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
cannam@154: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
cannam@154: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
cannam@154: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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cannam@154: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
cannam@154: POSSIBILITY OF SUCH DAMAGE.
cannam@154: ***********************************************************************/
cannam@154: 
cannam@154: 
cannam@154: #ifndef __SILK_MACROS_MIPSR1_H__
cannam@154: #define __SILK_MACROS_MIPSR1_H__
cannam@154: 
cannam@154: #define mips_clz(x) __builtin_clz(x)
cannam@154: 
cannam@154: #undef silk_SMULWB
cannam@154: static inline int silk_SMULWB(int a, int b)
cannam@154: {
cannam@154:     long long ac;
cannam@154:     int c;
cannam@154: 
cannam@154:     ac = __builtin_mips_mult(a, (opus_int32)(opus_int16)b);
cannam@154:     c = __builtin_mips_extr_w(ac, 16);
cannam@154: 
cannam@154:     return c;
cannam@154: }
cannam@154: 
cannam@154: #undef silk_SMLAWB
cannam@154: #define silk_SMLAWB(a32, b32, c32)       ((a32) + silk_SMULWB(b32, c32))
cannam@154: 
cannam@154: #undef silk_SMULWW
cannam@154: static inline int silk_SMULWW(int a, int b)
cannam@154: {
cannam@154:     long long ac;
cannam@154:     int c;
cannam@154: 
cannam@154:     ac = __builtin_mips_mult(a, b);
cannam@154:     c = __builtin_mips_extr_w(ac, 16);
cannam@154: 
cannam@154:     return c;
cannam@154: }
cannam@154: 
cannam@154: #undef silk_SMLAWW
cannam@154: static inline int silk_SMLAWW(int a, int b, int c)
cannam@154: {
cannam@154:     long long ac;
cannam@154:     int res;
cannam@154: 
cannam@154:     ac = __builtin_mips_mult(b, c);
cannam@154:     res = __builtin_mips_extr_w(ac, 16);
cannam@154:     res += a;
cannam@154: 
cannam@154:     return res;
cannam@154: }
cannam@154: 
cannam@154: #define OVERRIDE_silk_CLZ16
cannam@154: static inline opus_int32 silk_CLZ16(opus_int16 in16)
cannam@154: {
cannam@154:     int re32;
cannam@154:     opus_int32 in32 = (opus_int32 )in16;
cannam@154:     re32 = mips_clz(in32);
cannam@154:     re32-=16;
cannam@154:     return re32;
cannam@154: }
cannam@154: 
cannam@154: #define OVERRIDE_silk_CLZ32
cannam@154: static inline opus_int32 silk_CLZ32(opus_int32 in32)
cannam@154: {
cannam@154:     int re32;
cannam@154:     re32 = mips_clz(in32);
cannam@154:     return re32;
cannam@154: }
cannam@154: 
cannam@154: #endif /* __SILK_MACROS_MIPSR1_H__ */