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annotate Common/Drivers/CMSIS/Include/arm_common_tables.h @ 261:cc2406b835ff bm-3

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Bugfix: do not reset saturation on surfacing Commit 822416168585 introduced a subtle bug. On surfacing, the value of saturation was reset to 0. This is prefect proof why global data is a dangerous thing, and subtle changes can introduce seemingly unrelated bugs. While it would be much better to factor out as much as possible global data, the fix here does not do that. Simply, the bug is fixed without touching the rather complex gTissue_nitrogen_bar/gTissue_helium_bar handling. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 23 Apr 2019 13:05:20 +0200
parents c78bcbd5deda
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1 /* ----------------------------------------------------------------------
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2 * Copyright (C) 2010-2014 ARM Limited. All rights reserved.
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3 *
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4 * $Date: 19. October 2015
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5 * $Revision: V.1.4.5 a
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6 *
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7 * Project: CMSIS DSP Library
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8 * Title: arm_common_tables.h
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9 *
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10 * Description: This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions
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11 *
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12 * Target Processor: Cortex-M4/Cortex-M3
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13 *
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14 * Redistribution and use in source and binary forms, with or without
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15 * modification, are permitted provided that the following conditions
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16 * are met:
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17 * - Redistributions of source code must retain the above copyright
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18 * notice, this list of conditions and the following disclaimer.
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19 * - Redistributions in binary form must reproduce the above copyright
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20 * notice, this list of conditions and the following disclaimer in
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21 * the documentation and/or other materials provided with the
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22 * distribution.
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23 * - Neither the name of ARM LIMITED nor the names of its contributors
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24 * may be used to endorse or promote products derived from this
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25 * software without specific prior written permission.
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26 *
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27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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31 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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32 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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38 * POSSIBILITY OF SUCH DAMAGE.
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39 * -------------------------------------------------------------------- */
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40
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41 #ifndef _ARM_COMMON_TABLES_H
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42 #define _ARM_COMMON_TABLES_H
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43
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44 #include "arm_math.h"
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45
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46 extern const uint16_t armBitRevTable[1024];
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47 extern const q15_t armRecipTableQ15[64];
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48 extern const q31_t armRecipTableQ31[64];
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49 /* extern const q31_t realCoefAQ31[1024]; */
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50 /* extern const q31_t realCoefBQ31[1024]; */
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51 extern const float32_t twiddleCoef_16[32];
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52 extern const float32_t twiddleCoef_32[64];
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53 extern const float32_t twiddleCoef_64[128];
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54 extern const float32_t twiddleCoef_128[256];
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55 extern const float32_t twiddleCoef_256[512];
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56 extern const float32_t twiddleCoef_512[1024];
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57 extern const float32_t twiddleCoef_1024[2048];
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58 extern const float32_t twiddleCoef_2048[4096];
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59 extern const float32_t twiddleCoef_4096[8192];
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60 #define twiddleCoef twiddleCoef_4096
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61 extern const q31_t twiddleCoef_16_q31[24];
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62 extern const q31_t twiddleCoef_32_q31[48];
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63 extern const q31_t twiddleCoef_64_q31[96];
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64 extern const q31_t twiddleCoef_128_q31[192];
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65 extern const q31_t twiddleCoef_256_q31[384];
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66 extern const q31_t twiddleCoef_512_q31[768];
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67 extern const q31_t twiddleCoef_1024_q31[1536];
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68 extern const q31_t twiddleCoef_2048_q31[3072];
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69 extern const q31_t twiddleCoef_4096_q31[6144];
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70 extern const q15_t twiddleCoef_16_q15[24];
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71 extern const q15_t twiddleCoef_32_q15[48];
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72 extern const q15_t twiddleCoef_64_q15[96];
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73 extern const q15_t twiddleCoef_128_q15[192];
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74 extern const q15_t twiddleCoef_256_q15[384];
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75 extern const q15_t twiddleCoef_512_q15[768];
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76 extern const q15_t twiddleCoef_1024_q15[1536];
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77 extern const q15_t twiddleCoef_2048_q15[3072];
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78 extern const q15_t twiddleCoef_4096_q15[6144];
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79 extern const float32_t twiddleCoef_rfft_32[32];
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80 extern const float32_t twiddleCoef_rfft_64[64];
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81 extern const float32_t twiddleCoef_rfft_128[128];
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82 extern const float32_t twiddleCoef_rfft_256[256];
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83 extern const float32_t twiddleCoef_rfft_512[512];
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84 extern const float32_t twiddleCoef_rfft_1024[1024];
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85 extern const float32_t twiddleCoef_rfft_2048[2048];
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86 extern const float32_t twiddleCoef_rfft_4096[4096];
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87
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88
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89 /* floating-point bit reversal tables */
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90 #define ARMBITREVINDEXTABLE__16_TABLE_LENGTH ((uint16_t)20 )
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91 #define ARMBITREVINDEXTABLE__32_TABLE_LENGTH ((uint16_t)48 )
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92 #define ARMBITREVINDEXTABLE__64_TABLE_LENGTH ((uint16_t)56 )
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93 #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208 )
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94 #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440 )
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95 #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448 )
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96 #define ARMBITREVINDEXTABLE1024_TABLE_LENGTH ((uint16_t)1800)
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97 #define ARMBITREVINDEXTABLE2048_TABLE_LENGTH ((uint16_t)3808)
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98 #define ARMBITREVINDEXTABLE4096_TABLE_LENGTH ((uint16_t)4032)
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99
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100 extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE__16_TABLE_LENGTH];
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101 extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE__32_TABLE_LENGTH];
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102 extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE__64_TABLE_LENGTH];
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103 extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH];
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104 extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH];
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105 extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH];
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106 extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE1024_TABLE_LENGTH];
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107 extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE2048_TABLE_LENGTH];
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108 extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE4096_TABLE_LENGTH];
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109
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110 /* fixed-point bit reversal tables */
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111 #define ARMBITREVINDEXTABLE_FIXED___16_TABLE_LENGTH ((uint16_t)12 )
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112 #define ARMBITREVINDEXTABLE_FIXED___32_TABLE_LENGTH ((uint16_t)24 )
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113 #define ARMBITREVINDEXTABLE_FIXED___64_TABLE_LENGTH ((uint16_t)56 )
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114 #define ARMBITREVINDEXTABLE_FIXED__128_TABLE_LENGTH ((uint16_t)112 )
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115 #define ARMBITREVINDEXTABLE_FIXED__256_TABLE_LENGTH ((uint16_t)240 )
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116 #define ARMBITREVINDEXTABLE_FIXED__512_TABLE_LENGTH ((uint16_t)480 )
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117 #define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992 )
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118 #define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984)
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119 #define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032)
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120
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121 extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED___16_TABLE_LENGTH];
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122 extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED___32_TABLE_LENGTH];
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123 extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED___64_TABLE_LENGTH];
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124 extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED__128_TABLE_LENGTH];
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125 extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED__256_TABLE_LENGTH];
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126 extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED__512_TABLE_LENGTH];
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127 extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH];
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128 extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH];
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129 extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH];
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130
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131 /* Tables for Fast Math Sine and Cosine */
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132 extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1];
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133 extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1];
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134 extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1];
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135
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136 #endif /* ARM_COMMON_TABLES_H */