1 /*********************************************************************** 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. 3 Copyright (c) 2013 Parrot 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions 6 are met: 7 - Redistributions of source code must retain the above copyright notice, 8 this list of conditions and the following disclaimer. 9 - Redistributions in binary form must reproduce the above copyright 10 notice, this list of conditions and the following disclaimer in the 11 documentation and/or other materials provided with the distribution. 12 - Neither the name of Internet Society, IETF or IETF Trust, nor the 13 names of specific contributors, may be used to endorse or promote 14 products derived from this software without specific prior written 15 permission. 16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 20 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 POSSIBILITY OF SUCH DAMAGE. 27 ***********************************************************************/ 28 29 #ifndef SILK_MACROS_ARMv5E_H 30 #define SILK_MACROS_ARMv5E_H 31 32 /* This macro only avoids the undefined behaviour from a left shift of 33 a negative value. It should only be used in macros that can't include 34 SigProc_FIX.h. In other cases, use silk_LSHIFT32(). */ 35 #define SAFE_SHL(a,b) ((opus_int32)((opus_uint32)(a) << (b))) 36 37 /* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */ 38 #undef silk_SMULWB 39 static OPUS_INLINE opus_int32 silk_SMULWB_armv5e(opus_int32 a, opus_int16 b) 40 { 41 int res; 42 __asm__( 43 "#silk_SMULWB\n\t" 44 "smulwb %0, %1, %2\n\t" 45 : "=r"(res) 46 : "r"(a), "r"(b) 47 ); 48 return res; 49 } 50 #define silk_SMULWB(a, b) (silk_SMULWB_armv5e(a, b)) 51 52 /* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */ 53 #undef silk_SMLAWB 54 static OPUS_INLINE opus_int32 silk_SMLAWB_armv5e(opus_int32 a, opus_int32 b, 55 opus_int16 c) 56 { 57 int res; 58 __asm__( 59 "#silk_SMLAWB\n\t" 60 "smlawb %0, %1, %2, %3\n\t" 61 : "=r"(res) 62 : "r"(b), "r"(c), "r"(a) 63 ); 64 return res; 65 } 66 #define silk_SMLAWB(a, b, c) (silk_SMLAWB_armv5e(a, b, c)) 67 68 /* (a32 * (b32 >> 16)) >> 16 */ 69 #undef silk_SMULWT 70 static OPUS_INLINE opus_int32 silk_SMULWT_armv5e(opus_int32 a, opus_int32 b) 71 { 72 int res; 73 __asm__( 74 "#silk_SMULWT\n\t" 75 "smulwt %0, %1, %2\n\t" 76 : "=r"(res) 77 : "r"(a), "r"(b) 78 ); 79 return res; 80 } 81 #define silk_SMULWT(a, b) (silk_SMULWT_armv5e(a, b)) 82 83 /* a32 + (b32 * (c32 >> 16)) >> 16 */ 84 #undef silk_SMLAWT 85 static OPUS_INLINE opus_int32 silk_SMLAWT_armv5e(opus_int32 a, opus_int32 b, 86 opus_int32 c) 87 { 88 int res; 89 __asm__( 90 "#silk_SMLAWT\n\t" 91 "smlawt %0, %1, %2, %3\n\t" 92 : "=r"(res) 93 : "r"(b), "r"(c), "r"(a) 94 ); 95 return res; 96 } 97 #define silk_SMLAWT(a, b, c) (silk_SMLAWT_armv5e(a, b, c)) 98 99 /* (opus_int32)((opus_int16)(a3))) * (opus_int32)((opus_int16)(b32)) output have to be 32bit int */ 100 #undef silk_SMULBB 101 static OPUS_INLINE opus_int32 silk_SMULBB_armv5e(opus_int32 a, opus_int32 b) 102 { 103 int res; 104 __asm__( 105 "#silk_SMULBB\n\t" 106 "smulbb %0, %1, %2\n\t" 107 : "=r"(res) 108 : "%r"(a), "r"(b) 109 ); 110 return res; 111 } 112 #define silk_SMULBB(a, b) (silk_SMULBB_armv5e(a, b)) 113 114 /* a32 + (opus_int32)((opus_int16)(b32)) * (opus_int32)((opus_int16)(c32)) output have to be 32bit int */ 115 #undef silk_SMLABB 116 static OPUS_INLINE opus_int32 silk_SMLABB_armv5e(opus_int32 a, opus_int32 b, 117 opus_int32 c) 118 { 119 int res; 120 __asm__( 121 "#silk_SMLABB\n\t" 122 "smlabb %0, %1, %2, %3\n\t" 123 : "=r"(res) 124 : "%r"(b), "r"(c), "r"(a) 125 ); 126 return res; 127 } 128 #define silk_SMLABB(a, b, c) (silk_SMLABB_armv5e(a, b, c)) 129 130 /* (opus_int32)((opus_int16)(a32)) * (b32 >> 16) */ 131 #undef silk_SMULBT 132 static OPUS_INLINE opus_int32 silk_SMULBT_armv5e(opus_int32 a, opus_int32 b) 133 { 134 int res; 135 __asm__( 136 "#silk_SMULBT\n\t" 137 "smulbt %0, %1, %2\n\t" 138 : "=r"(res) 139 : "r"(a), "r"(b) 140 ); 141 return res; 142 } 143 #define silk_SMULBT(a, b) (silk_SMULBT_armv5e(a, b)) 144 145 /* a32 + (opus_int32)((opus_int16)(b32)) * (c32 >> 16) */ 146 #undef silk_SMLABT 147 static OPUS_INLINE opus_int32 silk_SMLABT_armv5e(opus_int32 a, opus_int32 b, 148 opus_int32 c) 149 { 150 int res; 151 __asm__( 152 "#silk_SMLABT\n\t" 153 "smlabt %0, %1, %2, %3\n\t" 154 : "=r"(res) 155 : "r"(b), "r"(c), "r"(a) 156 ); 157 return res; 158 } 159 #define silk_SMLABT(a, b, c) (silk_SMLABT_armv5e(a, b, c)) 160 161 /* add/subtract with output saturated */ 162 #undef silk_ADD_SAT32 163 static OPUS_INLINE opus_int32 silk_ADD_SAT32_armv5e(opus_int32 a, opus_int32 b) 164 { 165 int res; 166 __asm__( 167 "#silk_ADD_SAT32\n\t" 168 "qadd %0, %1, %2\n\t" 169 : "=r"(res) 170 : "%r"(a), "r"(b) 171 ); 172 return res; 173 } 174 #define silk_ADD_SAT32(a, b) (silk_ADD_SAT32_armv5e(a, b)) 175 176 #undef silk_SUB_SAT32 177 static OPUS_INLINE opus_int32 silk_SUB_SAT32_armv5e(opus_int32 a, opus_int32 b) 178 { 179 int res; 180 __asm__( 181 "#silk_SUB_SAT32\n\t" 182 "qsub %0, %1, %2\n\t" 183 : "=r"(res) 184 : "r"(a), "r"(b) 185 ); 186 return res; 187 } 188 #define silk_SUB_SAT32(a, b) (silk_SUB_SAT32_armv5e(a, b)) 189 190 #undef silk_CLZ16 191 static OPUS_INLINE opus_int32 silk_CLZ16_armv5(opus_int16 in16) 192 { 193 int res; 194 __asm__( 195 "#silk_CLZ16\n\t" 196 "clz %0, %1;\n" 197 : "=r"(res) 198 : "r"(SAFE_SHL(in16,16)|0x8000) 199 ); 200 return res; 201 } 202 #define silk_CLZ16(in16) (silk_CLZ16_armv5(in16)) 203 204 #undef silk_CLZ32 205 static OPUS_INLINE opus_int32 silk_CLZ32_armv5(opus_int32 in32) 206 { 207 int res; 208 __asm__( 209 "#silk_CLZ32\n\t" 210 "clz %0, %1\n\t" 211 : "=r"(res) 212 : "r"(in32) 213 ); 214 return res; 215 } 216 #define silk_CLZ32(in32) (silk_CLZ32_armv5(in32)) 217 218 #undef SAFE_SHL 219 220 #endif /* SILK_MACROS_ARMv5E_H */ 221
