1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup bsp_kit |
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5 | * |
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6 | * @brief Utility macros. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2008-2011 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Obere Lagerstr. 30 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.org/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #ifndef LIBCPU_SHARED_UTILITY_H |
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24 | #define LIBCPU_SHARED_UTILITY_H |
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25 | |
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26 | #include <stdint.h> |
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27 | |
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28 | #define BSP_BIT8(bit) \ |
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29 | ((uint8_t) (((unsigned int) 1) << (bit))) |
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30 | |
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31 | #define BSP_MSK8(first_bit, last_bit) \ |
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32 | ((uint8_t) ((BSP_BIT8((last_bit) - (first_bit) + 1) - 1) << (first_bit))) |
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33 | |
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34 | #define BSP_FLD8(val, first_bit, last_bit) \ |
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35 | ((uint8_t) \ |
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36 | ((((unsigned int) (val)) << (first_bit)) & BSP_MSK8(first_bit, last_bit))) |
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37 | |
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38 | #define BSP_FLD8GET(reg, first_bit, last_bit) \ |
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39 | ((uint8_t) (((reg) & BSP_MSK8(first_bit, last_bit)) >> (first_bit))) |
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40 | |
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41 | #define BSP_FLD8SET(reg, val, first_bit, last_bit) \ |
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42 | ((uint8_t) (((reg) & ~BSP_MSK8(first_bit, last_bit)) \ |
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43 | | BSP_FLD8(val, first_bit, last_bit))) |
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44 | |
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45 | #define BSP_BIT16(bit) \ |
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46 | ((uint16_t) (((unsigned int) 1) << (bit))) |
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47 | |
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48 | #define BSP_MSK16(first_bit, last_bit) \ |
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49 | ((uint16_t) ((BSP_BIT16((last_bit) - (first_bit) + 1) - 1) << (first_bit))) |
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50 | |
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51 | #define BSP_FLD16(val, first_bit, last_bit) \ |
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52 | ((uint16_t) \ |
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53 | ((((unsigned int) (val)) << (first_bit)) & BSP_MSK16(first_bit, last_bit))) |
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54 | |
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55 | #define BSP_FLD16GET(reg, first_bit, last_bit) \ |
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56 | ((uint16_t) (((reg) & BSP_MSK16(first_bit, last_bit)) >> (first_bit))) |
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57 | |
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58 | #define BSP_FLD16SET(reg, val, first_bit, last_bit) \ |
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59 | ((uint16_t) (((reg) & ~BSP_MSK16(first_bit, last_bit)) \ |
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60 | | BSP_FLD16(val, first_bit, last_bit))) |
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61 | |
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62 | #define BSP_BIT32(bit) \ |
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63 | ((uint32_t) (((uint32_t) 1) << (bit))) |
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64 | |
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65 | #define BSP_MSK32(first_bit, last_bit) \ |
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66 | ((uint32_t) ((BSP_BIT32((last_bit) - (first_bit) + 1) - 1) << (first_bit))) |
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67 | |
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68 | #define BSP_FLD32(val, first_bit, last_bit) \ |
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69 | ((uint32_t) \ |
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70 | ((((uint32_t) (val)) << (first_bit)) & BSP_MSK32(first_bit, last_bit))) |
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71 | |
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72 | #define BSP_FLD32GET(reg, first_bit, last_bit) \ |
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73 | ((uint32_t) (((reg) & BSP_MSK32(first_bit, last_bit)) >> (first_bit))) |
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74 | |
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75 | #define BSP_FLD32SET(reg, val, first_bit, last_bit) \ |
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76 | ((uint32_t) (((reg) & ~BSP_MSK32(first_bit, last_bit)) \ |
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77 | | BSP_FLD32(val, first_bit, last_bit))) |
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78 | |
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79 | #define BSP_BIT64(bit) \ |
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80 | ((uint64_t) (((uint64_t) 1) << (bit))) |
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81 | |
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82 | #define BSP_MSK64(first_bit, last_bit) \ |
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83 | ((uint64_t) ((BSP_BIT64((last_bit) - (first_bit) + 1) - 1) << (first_bit))) |
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84 | |
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85 | #define BSP_FLD64(val, first_bit, last_bit) \ |
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86 | ((uint64_t) \ |
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87 | ((((uint64_t) (val)) << (first_bit)) & BSP_MSK64(first_bit, last_bit))) |
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88 | |
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89 | #define BSP_FLD64GET(reg, first_bit, last_bit) \ |
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90 | ((uint64_t) (((reg) & BSP_MSK64(first_bit, last_bit)) >> (first_bit))) |
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91 | |
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92 | #define BSP_FLD64SET(reg, val, first_bit, last_bit) \ |
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93 | ((uint64_t) (((reg) & ~BSP_MSK64(first_bit, last_bit)) \ |
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94 | | BSP_FLD64(val, first_bit, last_bit))) |
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95 | |
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96 | #define BSP_BBIT8(bit) \ |
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97 | BSP_BIT8(7 - (bit)) |
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98 | |
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99 | #define BSP_BMSK8(first_bit, last_bit) \ |
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100 | BSP_MSK8(7 - (last_bit), 7 - (first_bit)) |
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101 | |
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102 | #define BSP_BFLD8(val, first_bit, last_bit) \ |
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103 | BSP_FLD8(val, 7 - (last_bit), 7 - (first_bit)) |
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104 | |
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105 | #define BSP_BFLD8GET(reg, first_bit, last_bit) \ |
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106 | BSP_FLD8GET(reg, 7 - (last_bit), 7 - (first_bit)) |
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107 | |
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108 | #define BSP_BFLD8SET(reg, val, first_bit, last_bit) \ |
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109 | BSP_FLD8SET(reg, val, 7 - (last_bit), 7 - (first_bit)) |
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110 | |
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111 | #define BSP_BBIT16(bit) \ |
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112 | BSP_BIT16(15 - (bit)) |
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113 | |
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114 | #define BSP_BMSK16(first_bit, last_bit) \ |
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115 | BSP_MSK16(15 - (last_bit), 15 - (first_bit)) |
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116 | |
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117 | #define BSP_BFLD16(val, first_bit, last_bit) \ |
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118 | BSP_FLD16(val, 15 - (last_bit), 15 - (first_bit)) |
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119 | |
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120 | #define BSP_BFLD16GET(reg, first_bit, last_bit) \ |
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121 | BSP_FLD16GET(reg, 15 - (last_bit), 15 - (first_bit)) |
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122 | |
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123 | #define BSP_BFLD16SET(reg, val, first_bit, last_bit) \ |
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124 | BSP_FLD16SET(reg, val, 15 - (last_bit), 15 - (first_bit)) |
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125 | |
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126 | #define BSP_BBIT32(bit) \ |
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127 | BSP_BIT32(31 - (bit)) |
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128 | |
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129 | #define BSP_BMSK32(first_bit, last_bit) \ |
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130 | BSP_MSK32(31 - (last_bit), 31 - (first_bit)) |
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131 | |
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132 | #define BSP_BFLD32(val, first_bit, last_bit) \ |
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133 | BSP_FLD32(val, 31 - (last_bit), 31 - (first_bit)) |
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134 | |
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135 | #define BSP_BFLD32GET(reg, first_bit, last_bit) \ |
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136 | BSP_FLD32GET(reg, 31 - (last_bit), 31 - (first_bit)) |
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137 | |
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138 | #define BSP_BFLD32SET(reg, val, first_bit, last_bit) \ |
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139 | BSP_FLD32SET(reg, val, 31 - (last_bit), 31 - (first_bit)) |
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140 | |
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141 | #define BSP_BBIT64(bit) \ |
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142 | BSP_BIT64(63 - (bit)) |
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143 | |
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144 | #define BSP_BMSK64(first_bit, last_bit) \ |
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145 | BSP_MSK64(63 - (last_bit), 63 - (first_bit)) |
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146 | |
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147 | #define BSP_BFLD64(val, first_bit, last_bit) \ |
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148 | BSP_FLD64(val, 63 - (last_bit), 63 - (first_bit)) |
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149 | |
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150 | #define BSP_BFLD64GET(reg, first_bit, last_bit) \ |
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151 | BSP_FLD64GET(reg, 63 - (last_bit), 63 - (first_bit)) |
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152 | |
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153 | #define BSP_BFLD64SET(reg, val, first_bit, last_bit) \ |
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154 | BSP_FLD64SET(reg, val, 63 - (last_bit), 63 - (first_bit)) |
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155 | |
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156 | #endif /* LIBCPU_SHARED_UTILITY_H */ |
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