1 | /* ----------------------------------------------------------------------
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2 | * Project: CMSIS DSP Library
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3 | * Title: arm_common_tables.h
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4 | * Description: Extern declaration for common tables
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5 | *
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6 | * $Date: 27. January 2017
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7 | * $Revision: V.1.5.1
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8 | *
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9 | * Target Processor: Cortex-M cores
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10 | * -------------------------------------------------------------------- */
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11 | /*
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12 | * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved.
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13 | *
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14 | * SPDX-License-Identifier: Apache-2.0
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15 | *
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16 | * Licensed under the Apache License, Version 2.0 (the License); you may
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17 | * not use this file except in compliance with the License.
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18 | * You may obtain a copy of the License at
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19 | *
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20 | * www.apache.org/licenses/LICENSE-2.0
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21 | *
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22 | * Unless required by applicable law or agreed to in writing, software
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23 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT
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24 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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25 | * See the License for the specific language governing permissions and
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26 | * limitations under the License.
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27 | */
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28 |
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29 | #ifndef _ARM_COMMON_TABLES_H
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30 | #define _ARM_COMMON_TABLES_H
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31 |
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32 | #include "arm_math.h"
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33 |
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34 | extern const uint16_t armBitRevTable[1024];
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35 | extern const q15_t armRecipTableQ15[64];
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36 | extern const q31_t armRecipTableQ31[64];
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37 | extern const float32_t twiddleCoef_16[32];
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38 | extern const float32_t twiddleCoef_32[64];
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39 | extern const float32_t twiddleCoef_64[128];
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40 | extern const float32_t twiddleCoef_128[256];
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41 | extern const float32_t twiddleCoef_256[512];
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42 | extern const float32_t twiddleCoef_512[1024];
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43 | extern const float32_t twiddleCoef_1024[2048];
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44 | extern const float32_t twiddleCoef_2048[4096];
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45 | extern const float32_t twiddleCoef_4096[8192];
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46 | #define twiddleCoef twiddleCoef_4096
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47 | extern const q31_t twiddleCoef_16_q31[24];
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48 | extern const q31_t twiddleCoef_32_q31[48];
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49 | extern const q31_t twiddleCoef_64_q31[96];
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50 | extern const q31_t twiddleCoef_128_q31[192];
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51 | extern const q31_t twiddleCoef_256_q31[384];
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52 | extern const q31_t twiddleCoef_512_q31[768];
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53 | extern const q31_t twiddleCoef_1024_q31[1536];
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54 | extern const q31_t twiddleCoef_2048_q31[3072];
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55 | extern const q31_t twiddleCoef_4096_q31[6144];
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56 | extern const q15_t twiddleCoef_16_q15[24];
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57 | extern const q15_t twiddleCoef_32_q15[48];
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58 | extern const q15_t twiddleCoef_64_q15[96];
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59 | extern const q15_t twiddleCoef_128_q15[192];
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60 | extern const q15_t twiddleCoef_256_q15[384];
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61 | extern const q15_t twiddleCoef_512_q15[768];
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62 | extern const q15_t twiddleCoef_1024_q15[1536];
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63 | extern const q15_t twiddleCoef_2048_q15[3072];
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64 | extern const q15_t twiddleCoef_4096_q15[6144];
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65 | extern const float32_t twiddleCoef_rfft_32[32];
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66 | extern const float32_t twiddleCoef_rfft_64[64];
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67 | extern const float32_t twiddleCoef_rfft_128[128];
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68 | extern const float32_t twiddleCoef_rfft_256[256];
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69 | extern const float32_t twiddleCoef_rfft_512[512];
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70 | extern const float32_t twiddleCoef_rfft_1024[1024];
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71 | extern const float32_t twiddleCoef_rfft_2048[2048];
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72 | extern const float32_t twiddleCoef_rfft_4096[4096];
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73 |
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74 | /* floating-point bit reversal tables */
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75 | #define ARMBITREVINDEXTABLE_16_TABLE_LENGTH ((uint16_t)20)
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76 | #define ARMBITREVINDEXTABLE_32_TABLE_LENGTH ((uint16_t)48)
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77 | #define ARMBITREVINDEXTABLE_64_TABLE_LENGTH ((uint16_t)56)
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78 | #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208)
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79 | #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440)
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80 | #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448)
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81 | #define ARMBITREVINDEXTABLE_1024_TABLE_LENGTH ((uint16_t)1800)
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82 | #define ARMBITREVINDEXTABLE_2048_TABLE_LENGTH ((uint16_t)3808)
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83 | #define ARMBITREVINDEXTABLE_4096_TABLE_LENGTH ((uint16_t)4032)
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84 |
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85 | extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE_16_TABLE_LENGTH];
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86 | extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE_32_TABLE_LENGTH];
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87 | extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE_64_TABLE_LENGTH];
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88 | extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH];
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89 | extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH];
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90 | extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH];
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91 | extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE_1024_TABLE_LENGTH];
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92 | extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE_2048_TABLE_LENGTH];
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93 | extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE_4096_TABLE_LENGTH];
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94 |
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95 | /* fixed-point bit reversal tables */
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96 | #define ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH ((uint16_t)12)
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97 | #define ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH ((uint16_t)24)
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98 | #define ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH ((uint16_t)56)
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99 | #define ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH ((uint16_t)112)
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100 | #define ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH ((uint16_t)240)
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101 | #define ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH ((uint16_t)480)
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102 | #define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992)
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103 | #define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984)
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104 | #define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032)
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105 |
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106 | extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH];
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107 | extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH];
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108 | extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH];
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109 | extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH];
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110 | extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH];
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111 | extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH];
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112 | extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH];
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113 | extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH];
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114 | extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH];
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115 |
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116 | /* Tables for Fast Math Sine and Cosine */
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117 | extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1];
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118 | extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1];
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119 | extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1];
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120 |
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121 | #endif /* ARM_COMMON_TABLES_H */
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