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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6 * $Date: 27. January 2017
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9 * Target Processor: Cortex-M cores
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10 * -------------------------------------------------------------------- */
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12 * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved.
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14 * SPDX-License-Identifier: Apache-2.0
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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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20 * www.apache.org/licenses/LICENSE-2.0
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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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29 #ifndef _ARM_COMMON_TABLES_H
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30 #define _ARM_COMMON_TABLES_H
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32 #include "arm_math.h"
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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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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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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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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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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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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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121 #endif /* ARM_COMMON_TABLES_H */
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