macros_mipsr1.h (3443B)
1 /*********************************************************************** 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. 3 Redistribution and use in source and binary forms, with or without 4 modification, are permitted provided that the following conditions 5 are met: 6 - Redistributions of source code must retain the above copyright notice, 7 this list of conditions and the following disclaimer. 8 - Redistributions in binary form must reproduce the above copyright 9 notice, this list of conditions and the following disclaimer in the 10 documentation and/or other materials provided with the distribution. 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the 12 names of specific contributors, may be used to endorse or promote 13 products derived from this software without specific prior written 14 permission. 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 POSSIBILITY OF SUCH DAMAGE. 26 ***********************************************************************/ 27 28 29 #ifndef SILK_MACROS_MIPSR1_H__ 30 #define SILK_MACROS_MIPSR1_H__ 31 32 33 #if defined (__mips_dsp) && __mips == 32 34 35 #undef silk_SMULWB 36 static inline int silk_SMULWB(int a, int b) 37 { 38 long long ac; 39 int c; 40 41 ac = __builtin_mips_mult(a, (opus_int32)(opus_int16)b); 42 c = __builtin_mips_extr_w(ac, 16); 43 44 return c; 45 } 46 47 #undef silk_SMLAWB 48 #define silk_SMLAWB(a32, b32, c32) ((a32) + silk_SMULWB(b32, c32)) 49 50 #undef silk_SMULWW 51 static inline int silk_SMULWW(int a, int b) 52 { 53 long long ac; 54 int c; 55 56 ac = __builtin_mips_mult(a, b); 57 c = __builtin_mips_extr_w(ac, 16); 58 59 return c; 60 } 61 62 #undef silk_SMLAWW 63 static inline int silk_SMLAWW(int a, int b, int c) 64 { 65 long long ac; 66 int res; 67 68 ac = __builtin_mips_mult(b, c); 69 res = __builtin_mips_extr_w(ac, 16); 70 res += a; 71 72 return res; 73 } 74 75 #elif defined (__mips_isa_rev) && __mips == 32 76 77 #undef silk_SMULWB 78 static inline int silk_SMULWB(int a, int b) 79 { 80 long long ac = (long long)a * (int)(b << 16); 81 82 return ac >> 32; 83 } 84 85 /* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */ 86 #undef silk_SMLAWB 87 static inline int silk_SMLAWB(int a, int b, int c) 88 { 89 long long ac = (long long)b * (int)(c << 16); 90 91 return a + (ac >> 32); 92 } 93 94 #endif 95 96 #if defined (__mips_isa_rev) /* MIPS32r1+ */ 97 98 static inline int mips_clz(opus_uint32 x) 99 { 100 return x ? __builtin_clz(x) : 32; 101 } 102 103 #define OVERRIDE_silk_CLZ16 104 static inline opus_int32 silk_CLZ16(opus_int16 in16) 105 { 106 int re32; 107 opus_uint32 in32 = (opus_uint16)in16; 108 re32 = mips_clz(in32); 109 re32 -= 16; 110 return re32; 111 } 112 113 #define OVERRIDE_silk_CLZ32 114 static inline opus_int32 silk_CLZ32(opus_int32 in32) 115 { 116 int re32; 117 re32 = mips_clz(in32); 118 return re32; 119 } 120 121 #endif /* __mips_isa_rev */ 122 123 #endif /* SILK_MACROS_MIPSR1_H__ */