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annotate src/opus-1.3/celt/mips/fixed_generic_mipsr1.h @ 83:ae30d91d2ffe

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Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
author Chris Cannam
date Fri, 07 Feb 2020 11:51:13 +0000
parents 7aeed7906520
children
rev   line source
Chris@69 1 /* Copyright (C) 2007-2009 Xiph.Org Foundation
Chris@69 2 Copyright (C) 2003-2008 Jean-Marc Valin
Chris@69 3 Copyright (C) 2007-2008 CSIRO */
Chris@69 4 /**
Chris@69 5 @file fixed_generic.h
Chris@69 6 @brief Generic fixed-point operations
Chris@69 7 */
Chris@69 8 /*
Chris@69 9 Redistribution and use in source and binary forms, with or without
Chris@69 10 modification, are permitted provided that the following conditions
Chris@69 11 are met:
Chris@69 12
Chris@69 13 - Redistributions of source code must retain the above copyright
Chris@69 14 notice, this list of conditions and the following disclaimer.
Chris@69 15
Chris@69 16 - Redistributions in binary form must reproduce the above copyright
Chris@69 17 notice, this list of conditions and the following disclaimer in the
Chris@69 18 documentation and/or other materials provided with the distribution.
Chris@69 19
Chris@69 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Chris@69 21 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Chris@69 22 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Chris@69 23 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
Chris@69 24 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Chris@69 25 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
Chris@69 26 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
Chris@69 27 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
Chris@69 28 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Chris@69 29 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Chris@69 30 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@69 31 */
Chris@69 32
Chris@69 33 #ifndef CELT_FIXED_GENERIC_MIPSR1_H
Chris@69 34 #define CELT_FIXED_GENERIC_MIPSR1_H
Chris@69 35
Chris@69 36 #undef MULT16_32_Q15_ADD
Chris@69 37 static inline int MULT16_32_Q15_ADD(int a, int b, int c, int d) {
Chris@69 38 int m;
Chris@69 39 asm volatile("MULT $ac1, %0, %1" : : "r" ((int)a), "r" ((int)b));
Chris@69 40 asm volatile("madd $ac1, %0, %1" : : "r" ((int)c), "r" ((int)d));
Chris@69 41 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (m): "i" (15));
Chris@69 42 return m;
Chris@69 43 }
Chris@69 44
Chris@69 45 #undef MULT16_32_Q15_SUB
Chris@69 46 static inline int MULT16_32_Q15_SUB(int a, int b, int c, int d) {
Chris@69 47 int m;
Chris@69 48 asm volatile("MULT $ac1, %0, %1" : : "r" ((int)a), "r" ((int)b));
Chris@69 49 asm volatile("msub $ac1, %0, %1" : : "r" ((int)c), "r" ((int)d));
Chris@69 50 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (m): "i" (15));
Chris@69 51 return m;
Chris@69 52 }
Chris@69 53
Chris@69 54 #undef MULT16_16_Q15_ADD
Chris@69 55 static inline int MULT16_16_Q15_ADD(int a, int b, int c, int d) {
Chris@69 56 int m;
Chris@69 57 asm volatile("MULT $ac1, %0, %1" : : "r" ((int)a), "r" ((int)b));
Chris@69 58 asm volatile("madd $ac1, %0, %1" : : "r" ((int)c), "r" ((int)d));
Chris@69 59 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (m): "i" (15));
Chris@69 60 return m;
Chris@69 61 }
Chris@69 62
Chris@69 63 #undef MULT16_16_Q15_SUB
Chris@69 64 static inline int MULT16_16_Q15_SUB(int a, int b, int c, int d) {
Chris@69 65 int m;
Chris@69 66 asm volatile("MULT $ac1, %0, %1" : : "r" ((int)a), "r" ((int)b));
Chris@69 67 asm volatile("msub $ac1, %0, %1" : : "r" ((int)c), "r" ((int)d));
Chris@69 68 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (m): "i" (15));
Chris@69 69 return m;
Chris@69 70 }
Chris@69 71
Chris@69 72
Chris@69 73 #undef MULT16_32_Q16
Chris@69 74 static inline int MULT16_32_Q16(int a, int b)
Chris@69 75 {
Chris@69 76 int c;
Chris@69 77 asm volatile("MULT $ac1,%0, %1" : : "r" (a), "r" (b));
Chris@69 78 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (c): "i" (16));
Chris@69 79 return c;
Chris@69 80 }
Chris@69 81
Chris@69 82 #undef MULT16_32_P16
Chris@69 83 static inline int MULT16_32_P16(int a, int b)
Chris@69 84 {
Chris@69 85 int c;
Chris@69 86 asm volatile("MULT $ac1, %0, %1" : : "r" (a), "r" (b));
Chris@69 87 asm volatile("EXTR_R.W %0,$ac1, %1" : "=r" (c): "i" (16));
Chris@69 88 return c;
Chris@69 89 }
Chris@69 90
Chris@69 91 #undef MULT16_32_Q15
Chris@69 92 static inline int MULT16_32_Q15(int a, int b)
Chris@69 93 {
Chris@69 94 int c;
Chris@69 95 asm volatile("MULT $ac1, %0, %1" : : "r" (a), "r" (b));
Chris@69 96 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (c): "i" (15));
Chris@69 97 return c;
Chris@69 98 }
Chris@69 99
Chris@69 100 #undef MULT32_32_Q31
Chris@69 101 static inline int MULT32_32_Q31(int a, int b)
Chris@69 102 {
Chris@69 103 int r;
Chris@69 104 asm volatile("MULT $ac1, %0, %1" : : "r" (a), "r" (b));
Chris@69 105 asm volatile("EXTR.W %0,$ac1, %1" : "=r" (r): "i" (31));
Chris@69 106 return r;
Chris@69 107 }
Chris@69 108
Chris@69 109 #undef PSHR32
Chris@69 110 static inline int PSHR32(int a, int shift)
Chris@69 111 {
Chris@69 112 int r;
Chris@69 113 asm volatile ("SHRAV_R.W %0, %1, %2" :"=r" (r): "r" (a), "r" (shift));
Chris@69 114 return r;
Chris@69 115 }
Chris@69 116
Chris@69 117 #undef MULT16_16_P15
Chris@69 118 static inline int MULT16_16_P15(int a, int b)
Chris@69 119 {
Chris@69 120 int r;
Chris@69 121 asm volatile ("mul %0, %1, %2" :"=r" (r): "r" (a), "r" (b));
Chris@69 122 asm volatile ("SHRA_R.W %0, %1, %2" : "+r" (r): "0" (r), "i"(15));
Chris@69 123 return r;
Chris@69 124 }
Chris@69 125
Chris@69 126 #endif /* CELT_FIXED_GENERIC_MIPSR1_H */