leo hendrickson / Mbed OS example-Ethernet-mbed-Cloud-connect

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simple-mbed-cloud-client/mbed-cloud-client/nanostack-libservice/mbed-client-libservice/common_functions.h@0:8f0bb79ddd48, 2021-05-04 (annotated)

Committer:
leothedragon
Date:
Tue May 04 08:55:12 2021 +0000
Revision:
0:8f0bb79ddd48
nmn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:8f0bb79ddd48 1 /*
leothedragon 0:8f0bb79ddd48 2 * Copyright (c) 2014-2015 ARM Limited. All rights reserved.
leothedragon 0:8f0bb79ddd48 3 * SPDX-License-Identifier: Apache-2.0
leothedragon 0:8f0bb79ddd48 4 * Licensed under the Apache License, Version 2.0 (the License); you may
leothedragon 0:8f0bb79ddd48 5 * not use this file except in compliance with the License.
leothedragon 0:8f0bb79ddd48 6 * You may obtain a copy of the License at
leothedragon 0:8f0bb79ddd48 7 *
leothedragon 0:8f0bb79ddd48 8 * http://www.apache.org/licenses/LICENSE-2.0
leothedragon 0:8f0bb79ddd48 9 *
leothedragon 0:8f0bb79ddd48 10 * Unless required by applicable law or agreed to in writing, software
leothedragon 0:8f0bb79ddd48 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
leothedragon 0:8f0bb79ddd48 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
leothedragon 0:8f0bb79ddd48 13 * See the License for the specific language governing permissions and
leothedragon 0:8f0bb79ddd48 14 * limitations under the License.
leothedragon 0:8f0bb79ddd48 15 */
leothedragon 0:8f0bb79ddd48 16 #ifndef COMMON_FUNCTIONS_H_
leothedragon 0:8f0bb79ddd48 17 #define COMMON_FUNCTIONS_H_
leothedragon 0:8f0bb79ddd48 18
leothedragon 0:8f0bb79ddd48 19 #include "ns_types.h"
leothedragon 0:8f0bb79ddd48 20
leothedragon 0:8f0bb79ddd48 21 #ifdef __cplusplus
leothedragon 0:8f0bb79ddd48 22 extern "C" {
leothedragon 0:8f0bb79ddd48 23 #endif
leothedragon 0:8f0bb79ddd48 24
leothedragon 0:8f0bb79ddd48 25 /*
leothedragon 0:8f0bb79ddd48 26 * Common write 64-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 27 *
leothedragon 0:8f0bb79ddd48 28 * Write 64 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 29 *
leothedragon 0:8f0bb79ddd48 30 * \param value 64-bit variable
leothedragon 0:8f0bb79ddd48 31 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 32 *
leothedragon 0:8f0bb79ddd48 33 * \return updated pointer
leothedragon 0:8f0bb79ddd48 34 */
leothedragon 0:8f0bb79ddd48 35 NS_INLINE uint8_t *common_write_64_bit(uint64_t value, uint8_t ptr[__static 8]);
leothedragon 0:8f0bb79ddd48 36
leothedragon 0:8f0bb79ddd48 37 /*
leothedragon 0:8f0bb79ddd48 38 * Common read 64-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 39 *
leothedragon 0:8f0bb79ddd48 40 * Read 64 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 41 *
leothedragon 0:8f0bb79ddd48 42 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 43 *
leothedragon 0:8f0bb79ddd48 44 * \return 64-bit variable
leothedragon 0:8f0bb79ddd48 45 */
leothedragon 0:8f0bb79ddd48 46 NS_INLINE uint64_t common_read_64_bit(const uint8_t data_buf[__static 8]);
leothedragon 0:8f0bb79ddd48 47
leothedragon 0:8f0bb79ddd48 48 /*
leothedragon 0:8f0bb79ddd48 49 * Common write 32-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 50 *
leothedragon 0:8f0bb79ddd48 51 * Write 32 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 52 *
leothedragon 0:8f0bb79ddd48 53 * \param value 32-bit variable
leothedragon 0:8f0bb79ddd48 54 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 55 *
leothedragon 0:8f0bb79ddd48 56 * \return updated pointer
leothedragon 0:8f0bb79ddd48 57 */
leothedragon 0:8f0bb79ddd48 58 NS_INLINE uint8_t *common_write_32_bit(uint32_t value, uint8_t ptr[__static 4]);
leothedragon 0:8f0bb79ddd48 59
leothedragon 0:8f0bb79ddd48 60 /*
leothedragon 0:8f0bb79ddd48 61 * Common read 32-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 62 *
leothedragon 0:8f0bb79ddd48 63 * Read 32 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 64 *
leothedragon 0:8f0bb79ddd48 65 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 66 *
leothedragon 0:8f0bb79ddd48 67 * \return 32-bit variable
leothedragon 0:8f0bb79ddd48 68 */
leothedragon 0:8f0bb79ddd48 69 NS_INLINE uint32_t common_read_32_bit(const uint8_t data_buf[__static 4]);
leothedragon 0:8f0bb79ddd48 70
leothedragon 0:8f0bb79ddd48 71 /*
leothedragon 0:8f0bb79ddd48 72 * Common write 32-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 73 *
leothedragon 0:8f0bb79ddd48 74 * Write 32 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 75 *
leothedragon 0:8f0bb79ddd48 76 * \param value 32-bit variable
leothedragon 0:8f0bb79ddd48 77 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 78 *
leothedragon 0:8f0bb79ddd48 79 * \return updated pointer
leothedragon 0:8f0bb79ddd48 80 */
leothedragon 0:8f0bb79ddd48 81 NS_INLINE uint8_t *common_write_32_bit_inverse(uint32_t value, uint8_t ptr[__static 4]);
leothedragon 0:8f0bb79ddd48 82
leothedragon 0:8f0bb79ddd48 83 /*
leothedragon 0:8f0bb79ddd48 84 * Common read 32-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 85 *
leothedragon 0:8f0bb79ddd48 86 * Read 32 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 87 *
leothedragon 0:8f0bb79ddd48 88 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 89 *
leothedragon 0:8f0bb79ddd48 90 * \return 32-bit variable
leothedragon 0:8f0bb79ddd48 91 */
leothedragon 0:8f0bb79ddd48 92 NS_INLINE uint32_t common_read_32_bit_inverse(const uint8_t data_buf[__static 4]);
leothedragon 0:8f0bb79ddd48 93
leothedragon 0:8f0bb79ddd48 94 /*
leothedragon 0:8f0bb79ddd48 95 * Common write 24-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 96 *
leothedragon 0:8f0bb79ddd48 97 * Write 24 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 98 *
leothedragon 0:8f0bb79ddd48 99 * \param value 24-bit variable
leothedragon 0:8f0bb79ddd48 100 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 101 *
leothedragon 0:8f0bb79ddd48 102 * \return updated pointer
leothedragon 0:8f0bb79ddd48 103 */
leothedragon 0:8f0bb79ddd48 104 NS_INLINE uint8_t *common_write_24_bit(uint_fast24_t value, uint8_t ptr[__static 3]);
leothedragon 0:8f0bb79ddd48 105
leothedragon 0:8f0bb79ddd48 106 /*
leothedragon 0:8f0bb79ddd48 107 * Common read 24-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 108 *
leothedragon 0:8f0bb79ddd48 109 * Read 24 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 110 *
leothedragon 0:8f0bb79ddd48 111 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 112 *
leothedragon 0:8f0bb79ddd48 113 * \return 24-bit variable
leothedragon 0:8f0bb79ddd48 114 */
leothedragon 0:8f0bb79ddd48 115 NS_INLINE uint_fast24_t common_read_24_bit(const uint8_t data_buf[__static 3]);
leothedragon 0:8f0bb79ddd48 116
leothedragon 0:8f0bb79ddd48 117 /*
leothedragon 0:8f0bb79ddd48 118 * Common write 24-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 119 *
leothedragon 0:8f0bb79ddd48 120 * Write 24 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 121 *
leothedragon 0:8f0bb79ddd48 122 * \param value 24-bit variable
leothedragon 0:8f0bb79ddd48 123 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 124 *
leothedragon 0:8f0bb79ddd48 125 * \return updated pointer
leothedragon 0:8f0bb79ddd48 126 */
leothedragon 0:8f0bb79ddd48 127 NS_INLINE uint8_t *common_write_24_bit_inverse(uint_fast24_t value, uint8_t ptr[__static 3]);
leothedragon 0:8f0bb79ddd48 128
leothedragon 0:8f0bb79ddd48 129 /*
leothedragon 0:8f0bb79ddd48 130 * Common read 24-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 131 *
leothedragon 0:8f0bb79ddd48 132 * Read 24 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 133 *
leothedragon 0:8f0bb79ddd48 134 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 135 *
leothedragon 0:8f0bb79ddd48 136 * \return 24-bit variable
leothedragon 0:8f0bb79ddd48 137 */
leothedragon 0:8f0bb79ddd48 138 NS_INLINE uint_fast24_t common_read_24_bit_inverse(const uint8_t data_buf[__static 3]);
leothedragon 0:8f0bb79ddd48 139
leothedragon 0:8f0bb79ddd48 140 /*
leothedragon 0:8f0bb79ddd48 141 * Common write 16-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 142 *
leothedragon 0:8f0bb79ddd48 143 * Write 16 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 144 *
leothedragon 0:8f0bb79ddd48 145 * \param value 16-bit variable
leothedragon 0:8f0bb79ddd48 146 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 147 *
leothedragon 0:8f0bb79ddd48 148 * \return updated pointer
leothedragon 0:8f0bb79ddd48 149 */
leothedragon 0:8f0bb79ddd48 150 NS_INLINE uint8_t *common_write_16_bit(uint16_t value, uint8_t ptr[__static 2]);
leothedragon 0:8f0bb79ddd48 151
leothedragon 0:8f0bb79ddd48 152 /*
leothedragon 0:8f0bb79ddd48 153 * Common read 16-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 154 *
leothedragon 0:8f0bb79ddd48 155 * Read 16 bits in big-endian (network) byte order.
leothedragon 0:8f0bb79ddd48 156 *
leothedragon 0:8f0bb79ddd48 157 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 158 *
leothedragon 0:8f0bb79ddd48 159 * \return 16-bit variable
leothedragon 0:8f0bb79ddd48 160 */
leothedragon 0:8f0bb79ddd48 161 NS_INLINE uint16_t common_read_16_bit(const uint8_t data_buf[__static 2]);
leothedragon 0:8f0bb79ddd48 162
leothedragon 0:8f0bb79ddd48 163 /*
leothedragon 0:8f0bb79ddd48 164 * Common write 16-bit variable to 8-bit pointer.
leothedragon 0:8f0bb79ddd48 165 *
leothedragon 0:8f0bb79ddd48 166 * Write 16 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 167 *
leothedragon 0:8f0bb79ddd48 168 * \param value 16-bit variable
leothedragon 0:8f0bb79ddd48 169 * \param ptr pointer where data to be written
leothedragon 0:8f0bb79ddd48 170 *
leothedragon 0:8f0bb79ddd48 171 * \return updated pointer
leothedragon 0:8f0bb79ddd48 172 */
leothedragon 0:8f0bb79ddd48 173 NS_INLINE uint8_t *common_write_16_bit_inverse(uint16_t value, uint8_t ptr[__static 2]);
leothedragon 0:8f0bb79ddd48 174
leothedragon 0:8f0bb79ddd48 175 /*
leothedragon 0:8f0bb79ddd48 176 * Common read 16-bit variable from 8-bit pointer.
leothedragon 0:8f0bb79ddd48 177 *
leothedragon 0:8f0bb79ddd48 178 * Read 16 bits in little-endian byte order.
leothedragon 0:8f0bb79ddd48 179 *
leothedragon 0:8f0bb79ddd48 180 * \param data_buf pointer where data to be read
leothedragon 0:8f0bb79ddd48 181 *
leothedragon 0:8f0bb79ddd48 182 * \return 16-bit variable
leothedragon 0:8f0bb79ddd48 183 */
leothedragon 0:8f0bb79ddd48 184 NS_INLINE uint16_t common_read_16_bit_inverse(const uint8_t data_buf[__static 2]);
leothedragon 0:8f0bb79ddd48 185
leothedragon 0:8f0bb79ddd48 186 /*
leothedragon 0:8f0bb79ddd48 187 * Count bits in a byte
leothedragon 0:8f0bb79ddd48 188 *
leothedragon 0:8f0bb79ddd48 189 * \param value byte to inspect
leothedragon 0:8f0bb79ddd48 190 *
leothedragon 0:8f0bb79ddd48 191 * \return number of 1-bits in byte
leothedragon 0:8f0bb79ddd48 192 */
leothedragon 0:8f0bb79ddd48 193 NS_INLINE uint_fast8_t common_count_bits(uint8_t value);
leothedragon 0:8f0bb79ddd48 194
leothedragon 0:8f0bb79ddd48 195 /*
leothedragon 0:8f0bb79ddd48 196 * Count leading zeros in a byte
leothedragon 0:8f0bb79ddd48 197 *
leothedragon 0:8f0bb79ddd48 198 * \deprecated Use common_count_leading_zeros_8
leothedragon 0:8f0bb79ddd48 199 *
leothedragon 0:8f0bb79ddd48 200 * \param value byte to inspect
leothedragon 0:8f0bb79ddd48 201 *
leothedragon 0:8f0bb79ddd48 202 * \return number of leading zeros in byte (0-8)
leothedragon 0:8f0bb79ddd48 203 */
leothedragon 0:8f0bb79ddd48 204 NS_INLINE uint_fast8_t common_count_leading_zeros(uint8_t value);
leothedragon 0:8f0bb79ddd48 205
leothedragon 0:8f0bb79ddd48 206 /*
leothedragon 0:8f0bb79ddd48 207 * Count leading zeros in a byte
leothedragon 0:8f0bb79ddd48 208 *
leothedragon 0:8f0bb79ddd48 209 * \param value byte to inspect
leothedragon 0:8f0bb79ddd48 210 *
leothedragon 0:8f0bb79ddd48 211 * \return number of leading zeros in byte (0-8)
leothedragon 0:8f0bb79ddd48 212 */
leothedragon 0:8f0bb79ddd48 213 NS_INLINE uint_fast8_t common_count_leading_zeros_8(uint8_t value);
leothedragon 0:8f0bb79ddd48 214
leothedragon 0:8f0bb79ddd48 215 /*
leothedragon 0:8f0bb79ddd48 216 * Count leading zeros in a 16-bit value
leothedragon 0:8f0bb79ddd48 217 *
leothedragon 0:8f0bb79ddd48 218 * \param value value to inspect
leothedragon 0:8f0bb79ddd48 219 *
leothedragon 0:8f0bb79ddd48 220 * \return number of leading zeros in byte (0-16)
leothedragon 0:8f0bb79ddd48 221 */
leothedragon 0:8f0bb79ddd48 222 NS_INLINE uint_fast8_t common_count_leading_zeros_16(uint16_t value);
leothedragon 0:8f0bb79ddd48 223
leothedragon 0:8f0bb79ddd48 224 /*
leothedragon 0:8f0bb79ddd48 225 * Count leading zeros in a 32-bit value
leothedragon 0:8f0bb79ddd48 226 *
leothedragon 0:8f0bb79ddd48 227 * \param value value to inspect
leothedragon 0:8f0bb79ddd48 228 *
leothedragon 0:8f0bb79ddd48 229 * \return number of leading zeros in byte (0-32)
leothedragon 0:8f0bb79ddd48 230 */
leothedragon 0:8f0bb79ddd48 231 NS_INLINE uint_fast8_t common_count_leading_zeros_32(uint32_t value);
leothedragon 0:8f0bb79ddd48 232
leothedragon 0:8f0bb79ddd48 233 /*
leothedragon 0:8f0bb79ddd48 234 * Compare 8-bit serial numbers
leothedragon 0:8f0bb79ddd48 235 *
leothedragon 0:8f0bb79ddd48 236 * Compare two 8-bit serial numbers, according to RFC 1982 Serial Number
leothedragon 0:8f0bb79ddd48 237 * Arithmetic.
leothedragon 0:8f0bb79ddd48 238 *
leothedragon 0:8f0bb79ddd48 239 * \param s1 first serial number
leothedragon 0:8f0bb79ddd48 240 * \param s2 second serial number
leothedragon 0:8f0bb79ddd48 241 *
leothedragon 0:8f0bb79ddd48 242 * \return true if s1 > s2
leothedragon 0:8f0bb79ddd48 243 * \return false if s1 <= s2, or the comparison is undefined
leothedragon 0:8f0bb79ddd48 244 */
leothedragon 0:8f0bb79ddd48 245 NS_INLINE bool common_serial_number_greater_8(uint8_t s1, uint8_t s2);
leothedragon 0:8f0bb79ddd48 246
leothedragon 0:8f0bb79ddd48 247 /*
leothedragon 0:8f0bb79ddd48 248 * Compare 16-bit serial numbers
leothedragon 0:8f0bb79ddd48 249 *
leothedragon 0:8f0bb79ddd48 250 * Compare two 16-bit serial numbers, according to RFC 1982 Serial Number
leothedragon 0:8f0bb79ddd48 251 * Arithmetic.
leothedragon 0:8f0bb79ddd48 252 *
leothedragon 0:8f0bb79ddd48 253 * \param s1 first serial number
leothedragon 0:8f0bb79ddd48 254 * \param s2 second serial number
leothedragon 0:8f0bb79ddd48 255 *
leothedragon 0:8f0bb79ddd48 256 * \return true if s1 > s2
leothedragon 0:8f0bb79ddd48 257 * \return false if s1 <= s2, or the comparison is undefined
leothedragon 0:8f0bb79ddd48 258 */
leothedragon 0:8f0bb79ddd48 259 NS_INLINE bool common_serial_number_greater_16(uint16_t s1, uint16_t s2);
leothedragon 0:8f0bb79ddd48 260
leothedragon 0:8f0bb79ddd48 261 /*
leothedragon 0:8f0bb79ddd48 262 * Compare 32-bit serial numbers
leothedragon 0:8f0bb79ddd48 263 *
leothedragon 0:8f0bb79ddd48 264 * Compare two 32-bit serial numbers, according to RFC 1982 Serial Number
leothedragon 0:8f0bb79ddd48 265 * Arithmetic.
leothedragon 0:8f0bb79ddd48 266 *
leothedragon 0:8f0bb79ddd48 267 * \param s1 first serial number
leothedragon 0:8f0bb79ddd48 268 * \param s2 second serial number
leothedragon 0:8f0bb79ddd48 269 *
leothedragon 0:8f0bb79ddd48 270 * \return true if s1 > s2
leothedragon 0:8f0bb79ddd48 271 * \return false if s1 <= s2, or the comparison is undefined
leothedragon 0:8f0bb79ddd48 272 */
leothedragon 0:8f0bb79ddd48 273 NS_INLINE bool common_serial_number_greater_32(uint32_t s1, uint32_t s2);
leothedragon 0:8f0bb79ddd48 274
leothedragon 0:8f0bb79ddd48 275 /*
leothedragon 0:8f0bb79ddd48 276 * Test a bit in an bit array.
leothedragon 0:8f0bb79ddd48 277 *
leothedragon 0:8f0bb79ddd48 278 * Check whether a particular bit is set in a bit string. The bit array
leothedragon 0:8f0bb79ddd48 279 * is in big-endian (network) bit order.
leothedragon 0:8f0bb79ddd48 280 *
leothedragon 0:8f0bb79ddd48 281 * \param bitset pointer to bit array
leothedragon 0:8f0bb79ddd48 282 * \param bit index of bit - 0 is the most significant bit of the first byte
leothedragon 0:8f0bb79ddd48 283 *
leothedragon 0:8f0bb79ddd48 284 * \return true if the bit is set
leothedragon 0:8f0bb79ddd48 285 */
leothedragon 0:8f0bb79ddd48 286 NS_INLINE bool bit_test(const uint8_t *bitset, uint_fast8_t bit);
leothedragon 0:8f0bb79ddd48 287
leothedragon 0:8f0bb79ddd48 288 /*
leothedragon 0:8f0bb79ddd48 289 * Set a bit in an bit array.
leothedragon 0:8f0bb79ddd48 290 *
leothedragon 0:8f0bb79ddd48 291 * Set a bit in a bit array. The array is in big-endian (network) bit order.
leothedragon 0:8f0bb79ddd48 292 *
leothedragon 0:8f0bb79ddd48 293 * \param bitset pointer to bit array
leothedragon 0:8f0bb79ddd48 294 * \param bit index of bit - 0 is the most significant bit of the first byte
leothedragon 0:8f0bb79ddd48 295 */
leothedragon 0:8f0bb79ddd48 296 NS_INLINE void bit_set(uint8_t *bitset, uint_fast8_t bit);
leothedragon 0:8f0bb79ddd48 297
leothedragon 0:8f0bb79ddd48 298 /*
leothedragon 0:8f0bb79ddd48 299 * Clear a bit in an bit array.
leothedragon 0:8f0bb79ddd48 300 *
leothedragon 0:8f0bb79ddd48 301 * Clear a bit in a bit array. The bit array is in big-endian (network) bit order.
leothedragon 0:8f0bb79ddd48 302 *
leothedragon 0:8f0bb79ddd48 303 * \param bitset pointer to bit array
leothedragon 0:8f0bb79ddd48 304 * \param bit index of bit - 0 is the most significant bit of the first byte
leothedragon 0:8f0bb79ddd48 305 */
leothedragon 0:8f0bb79ddd48 306 NS_INLINE void bit_clear(uint8_t *bitset, uint_fast8_t bit);
leothedragon 0:8f0bb79ddd48 307
leothedragon 0:8f0bb79ddd48 308 /*
leothedragon 0:8f0bb79ddd48 309 * Compare two bitstrings.
leothedragon 0:8f0bb79ddd48 310 *
leothedragon 0:8f0bb79ddd48 311 * Compare two bitstrings of specified length. The bit strings are in
leothedragon 0:8f0bb79ddd48 312 * big-endian (network) bit order.
leothedragon 0:8f0bb79ddd48 313 *
leothedragon 0:8f0bb79ddd48 314 * \param a pointer to first string
leothedragon 0:8f0bb79ddd48 315 * \param b pointer to second string
leothedragon 0:8f0bb79ddd48 316 * \param bits number of bits to compare
leothedragon 0:8f0bb79ddd48 317 *
leothedragon 0:8f0bb79ddd48 318 * \return true if the strings compare equal
leothedragon 0:8f0bb79ddd48 319 */
leothedragon 0:8f0bb79ddd48 320 bool bitsequal(const uint8_t *a, const uint8_t *b, uint_fast8_t bits);
leothedragon 0:8f0bb79ddd48 321
leothedragon 0:8f0bb79ddd48 322 /*
leothedragon 0:8f0bb79ddd48 323 * Copy a bitstring
leothedragon 0:8f0bb79ddd48 324 *
leothedragon 0:8f0bb79ddd48 325 * Copy a bitstring of specified length. The bit string is in big-endian
leothedragon 0:8f0bb79ddd48 326 * (network) bit order. Bits beyond the bitlength at the destination are not
leothedragon 0:8f0bb79ddd48 327 * modified.
leothedragon 0:8f0bb79ddd48 328 *
leothedragon 0:8f0bb79ddd48 329 * For example, copying 4 bits sets the first 4 bits of dst[0] from src[0],
leothedragon 0:8f0bb79ddd48 330 * the lower 4 bits of dst[0] are unmodified.
leothedragon 0:8f0bb79ddd48 331 *
leothedragon 0:8f0bb79ddd48 332 * \param dst destination pointer
leothedragon 0:8f0bb79ddd48 333 * \param src source pointer
leothedragon 0:8f0bb79ddd48 334 * \param bits number of bits to copy
leothedragon 0:8f0bb79ddd48 335 *
leothedragon 0:8f0bb79ddd48 336 * \return the value of dst
leothedragon 0:8f0bb79ddd48 337 */
leothedragon 0:8f0bb79ddd48 338 uint8_t *bitcopy(uint8_t *restrict dst, const uint8_t *restrict src, uint_fast8_t bits);
leothedragon 0:8f0bb79ddd48 339
leothedragon 0:8f0bb79ddd48 340 /*
leothedragon 0:8f0bb79ddd48 341 * Copy a bitstring and pad last byte with zeros
leothedragon 0:8f0bb79ddd48 342 *
leothedragon 0:8f0bb79ddd48 343 * Copy a bitstring of specified length. The bit string is in big-endian
leothedragon 0:8f0bb79ddd48 344 * (network) bit order. Bits beyond the bitlength in the last destination byte are
leothedragon 0:8f0bb79ddd48 345 * zeroed.
leothedragon 0:8f0bb79ddd48 346 *
leothedragon 0:8f0bb79ddd48 347 * For example, copying 4 bits sets the first 4 bits of dst[0] from src[0], and
leothedragon 0:8f0bb79ddd48 348 * the lower 4 bits of dst[0] are set to 0.
leothedragon 0:8f0bb79ddd48 349 *
leothedragon 0:8f0bb79ddd48 350 * \param dst destination pointer
leothedragon 0:8f0bb79ddd48 351 * \param src source pointer
leothedragon 0:8f0bb79ddd48 352 * \param bits number of bits to copy
leothedragon 0:8f0bb79ddd48 353 *
leothedragon 0:8f0bb79ddd48 354 * \return the value of dst
leothedragon 0:8f0bb79ddd48 355 */
leothedragon 0:8f0bb79ddd48 356 uint8_t *bitcopy0(uint8_t *restrict dst, const uint8_t *restrict src, uint_fast8_t bits);
leothedragon 0:8f0bb79ddd48 357
leothedragon 0:8f0bb79ddd48 358 /* Provide definitions, either for inlining, or for common_functions.c */
leothedragon 0:8f0bb79ddd48 359 #if defined NS_ALLOW_INLINING || defined COMMON_FUNCTIONS_FN
leothedragon 0:8f0bb79ddd48 360 #ifndef COMMON_FUNCTIONS_FN
leothedragon 0:8f0bb79ddd48 361 #define COMMON_FUNCTIONS_FN NS_INLINE
leothedragon 0:8f0bb79ddd48 362 #endif
leothedragon 0:8f0bb79ddd48 363
leothedragon 0:8f0bb79ddd48 364 COMMON_FUNCTIONS_FN uint8_t *common_write_64_bit(uint64_t value, uint8_t ptr[__static 8])
leothedragon 0:8f0bb79ddd48 365 {
leothedragon 0:8f0bb79ddd48 366 *ptr++ = value >> 56;
leothedragon 0:8f0bb79ddd48 367 *ptr++ = value >> 48;
leothedragon 0:8f0bb79ddd48 368 *ptr++ = value >> 40;
leothedragon 0:8f0bb79ddd48 369 *ptr++ = value >> 32;
leothedragon 0:8f0bb79ddd48 370 *ptr++ = value >> 24;
leothedragon 0:8f0bb79ddd48 371 *ptr++ = value >> 16;
leothedragon 0:8f0bb79ddd48 372 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 373 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 374 return ptr;
leothedragon 0:8f0bb79ddd48 375 }
leothedragon 0:8f0bb79ddd48 376
leothedragon 0:8f0bb79ddd48 377 COMMON_FUNCTIONS_FN uint64_t common_read_64_bit(const uint8_t data_buf[__static 8])
leothedragon 0:8f0bb79ddd48 378 {
leothedragon 0:8f0bb79ddd48 379 uint64_t temp_64;
leothedragon 0:8f0bb79ddd48 380 temp_64 = (uint64_t)(*data_buf++) << 56;
leothedragon 0:8f0bb79ddd48 381 temp_64 += (uint64_t)(*data_buf++) << 48;
leothedragon 0:8f0bb79ddd48 382 temp_64 += (uint64_t)(*data_buf++) << 40;
leothedragon 0:8f0bb79ddd48 383 temp_64 += (uint64_t)(*data_buf++) << 32;
leothedragon 0:8f0bb79ddd48 384 temp_64 += (uint64_t)(*data_buf++) << 24;
leothedragon 0:8f0bb79ddd48 385 temp_64 += (uint64_t)(*data_buf++) << 16;
leothedragon 0:8f0bb79ddd48 386 temp_64 += (uint64_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 387 temp_64 += *data_buf++;
leothedragon 0:8f0bb79ddd48 388 return temp_64;
leothedragon 0:8f0bb79ddd48 389 }
leothedragon 0:8f0bb79ddd48 390
leothedragon 0:8f0bb79ddd48 391 COMMON_FUNCTIONS_FN uint8_t *common_write_32_bit(uint32_t value, uint8_t ptr[__static 4])
leothedragon 0:8f0bb79ddd48 392 {
leothedragon 0:8f0bb79ddd48 393 *ptr++ = value >> 24;
leothedragon 0:8f0bb79ddd48 394 *ptr++ = value >> 16;
leothedragon 0:8f0bb79ddd48 395 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 396 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 397 return ptr;
leothedragon 0:8f0bb79ddd48 398 }
leothedragon 0:8f0bb79ddd48 399
leothedragon 0:8f0bb79ddd48 400 COMMON_FUNCTIONS_FN uint32_t common_read_32_bit(const uint8_t data_buf[__static 4])
leothedragon 0:8f0bb79ddd48 401 {
leothedragon 0:8f0bb79ddd48 402 uint32_t temp_32;
leothedragon 0:8f0bb79ddd48 403 temp_32 = (uint32_t)(*data_buf++) << 24;
leothedragon 0:8f0bb79ddd48 404 temp_32 += (uint32_t)(*data_buf++) << 16;
leothedragon 0:8f0bb79ddd48 405 temp_32 += (uint32_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 406 temp_32 += *data_buf++;
leothedragon 0:8f0bb79ddd48 407 return temp_32;
leothedragon 0:8f0bb79ddd48 408 }
leothedragon 0:8f0bb79ddd48 409
leothedragon 0:8f0bb79ddd48 410 COMMON_FUNCTIONS_FN uint8_t *common_write_32_bit_inverse(uint32_t value, uint8_t ptr[__static 4])
leothedragon 0:8f0bb79ddd48 411 {
leothedragon 0:8f0bb79ddd48 412 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 413 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 414 *ptr++ = value >> 16;
leothedragon 0:8f0bb79ddd48 415 *ptr++ = value >> 24;
leothedragon 0:8f0bb79ddd48 416 return ptr;
leothedragon 0:8f0bb79ddd48 417 }
leothedragon 0:8f0bb79ddd48 418
leothedragon 0:8f0bb79ddd48 419 COMMON_FUNCTIONS_FN uint32_t common_read_32_bit_inverse(const uint8_t data_buf[__static 4])
leothedragon 0:8f0bb79ddd48 420 {
leothedragon 0:8f0bb79ddd48 421 uint32_t temp_32;
leothedragon 0:8f0bb79ddd48 422 temp_32 = *data_buf++;
leothedragon 0:8f0bb79ddd48 423 temp_32 += (uint32_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 424 temp_32 += (uint32_t)(*data_buf++) << 16;
leothedragon 0:8f0bb79ddd48 425 temp_32 += (uint32_t)(*data_buf++) << 24;
leothedragon 0:8f0bb79ddd48 426 return temp_32;
leothedragon 0:8f0bb79ddd48 427 }
leothedragon 0:8f0bb79ddd48 428
leothedragon 0:8f0bb79ddd48 429 COMMON_FUNCTIONS_FN uint8_t *common_write_24_bit(uint_fast24_t value, uint8_t ptr[__static 3])
leothedragon 0:8f0bb79ddd48 430 {
leothedragon 0:8f0bb79ddd48 431 *ptr++ = value >> 16;
leothedragon 0:8f0bb79ddd48 432 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 433 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 434 return ptr;
leothedragon 0:8f0bb79ddd48 435 }
leothedragon 0:8f0bb79ddd48 436
leothedragon 0:8f0bb79ddd48 437 COMMON_FUNCTIONS_FN uint_fast24_t common_read_24_bit(const uint8_t data_buf[__static 3])
leothedragon 0:8f0bb79ddd48 438 {
leothedragon 0:8f0bb79ddd48 439 uint_fast24_t temp_24;
leothedragon 0:8f0bb79ddd48 440 temp_24 = (uint_fast24_t)(*data_buf++) << 16;
leothedragon 0:8f0bb79ddd48 441 temp_24 += (uint_fast24_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 442 temp_24 += *data_buf++;
leothedragon 0:8f0bb79ddd48 443 return temp_24;
leothedragon 0:8f0bb79ddd48 444 }
leothedragon 0:8f0bb79ddd48 445
leothedragon 0:8f0bb79ddd48 446 COMMON_FUNCTIONS_FN uint8_t *common_write_24_bit_inverse(uint_fast24_t value, uint8_t ptr[__static 3])
leothedragon 0:8f0bb79ddd48 447 {
leothedragon 0:8f0bb79ddd48 448 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 449 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 450 *ptr++ = value >> 16;
leothedragon 0:8f0bb79ddd48 451 return ptr;
leothedragon 0:8f0bb79ddd48 452 }
leothedragon 0:8f0bb79ddd48 453
leothedragon 0:8f0bb79ddd48 454 COMMON_FUNCTIONS_FN uint_fast24_t common_read_24_bit_inverse(const uint8_t data_buf[__static 3])
leothedragon 0:8f0bb79ddd48 455 {
leothedragon 0:8f0bb79ddd48 456 uint_fast24_t temp_24;
leothedragon 0:8f0bb79ddd48 457 temp_24 = *data_buf++;
leothedragon 0:8f0bb79ddd48 458 temp_24 += (uint_fast24_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 459 temp_24 += (uint_fast24_t)(*data_buf++) << 16;
leothedragon 0:8f0bb79ddd48 460 return temp_24;
leothedragon 0:8f0bb79ddd48 461 }
leothedragon 0:8f0bb79ddd48 462
leothedragon 0:8f0bb79ddd48 463 COMMON_FUNCTIONS_FN uint8_t *common_write_16_bit(uint16_t value, uint8_t ptr[__static 2])
leothedragon 0:8f0bb79ddd48 464 {
leothedragon 0:8f0bb79ddd48 465 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 466 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 467 return ptr;
leothedragon 0:8f0bb79ddd48 468 }
leothedragon 0:8f0bb79ddd48 469
leothedragon 0:8f0bb79ddd48 470 COMMON_FUNCTIONS_FN uint16_t common_read_16_bit(const uint8_t data_buf[__static 2])
leothedragon 0:8f0bb79ddd48 471 {
leothedragon 0:8f0bb79ddd48 472 uint16_t temp_16;
leothedragon 0:8f0bb79ddd48 473 temp_16 = (uint16_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 474 temp_16 += *data_buf++;
leothedragon 0:8f0bb79ddd48 475 return temp_16;
leothedragon 0:8f0bb79ddd48 476 }
leothedragon 0:8f0bb79ddd48 477
leothedragon 0:8f0bb79ddd48 478 COMMON_FUNCTIONS_FN uint8_t *common_write_16_bit_inverse(uint16_t value, uint8_t ptr[__static 2])
leothedragon 0:8f0bb79ddd48 479 {
leothedragon 0:8f0bb79ddd48 480 *ptr++ = value;
leothedragon 0:8f0bb79ddd48 481 *ptr++ = value >> 8;
leothedragon 0:8f0bb79ddd48 482 return ptr;
leothedragon 0:8f0bb79ddd48 483 }
leothedragon 0:8f0bb79ddd48 484
leothedragon 0:8f0bb79ddd48 485 COMMON_FUNCTIONS_FN uint16_t common_read_16_bit_inverse(const uint8_t data_buf[__static 2])
leothedragon 0:8f0bb79ddd48 486 {
leothedragon 0:8f0bb79ddd48 487 uint16_t temp_16;
leothedragon 0:8f0bb79ddd48 488 temp_16 = *data_buf++;
leothedragon 0:8f0bb79ddd48 489 temp_16 += (uint16_t)(*data_buf++) << 8;
leothedragon 0:8f0bb79ddd48 490 return temp_16;
leothedragon 0:8f0bb79ddd48 491 }
leothedragon 0:8f0bb79ddd48 492
leothedragon 0:8f0bb79ddd48 493 COMMON_FUNCTIONS_FN uint_fast8_t common_count_bits(uint8_t value)
leothedragon 0:8f0bb79ddd48 494 {
leothedragon 0:8f0bb79ddd48 495 /* First step sets each bit pair to be count of bits (00,01,10) */
leothedragon 0:8f0bb79ddd48 496 /* [00-00 = 00, 01-00 = 01, 10-01 = 01, 11-01 = 10] */
leothedragon 0:8f0bb79ddd48 497 uint_fast8_t count = value - ((value >> 1) & 0x55);
leothedragon 0:8f0bb79ddd48 498 /* Add bit pairs to make each nibble contain count of bits (0-4) */
leothedragon 0:8f0bb79ddd48 499 count = (count & 0x33) + ((count >> 2) & 0x33);
leothedragon 0:8f0bb79ddd48 500 /* Final result is sum of nibbles (0-8) */
leothedragon 0:8f0bb79ddd48 501 count = (count >> 4) + (count & 0x0F);
leothedragon 0:8f0bb79ddd48 502 return count;
leothedragon 0:8f0bb79ddd48 503 }
leothedragon 0:8f0bb79ddd48 504
leothedragon 0:8f0bb79ddd48 505 COMMON_FUNCTIONS_FN uint_fast8_t common_count_leading_zeros(uint8_t value)
leothedragon 0:8f0bb79ddd48 506 {
leothedragon 0:8f0bb79ddd48 507 return common_count_leading_zeros_8(value);
leothedragon 0:8f0bb79ddd48 508 }
leothedragon 0:8f0bb79ddd48 509
leothedragon 0:8f0bb79ddd48 510 COMMON_FUNCTIONS_FN uint_fast8_t common_count_leading_zeros_8(uint8_t value)
leothedragon 0:8f0bb79ddd48 511 {
leothedragon 0:8f0bb79ddd48 512 #ifdef __CC_ARM
leothedragon 0:8f0bb79ddd48 513 return value ? __clz((unsigned int) value << 24) : 8;
leothedragon 0:8f0bb79ddd48 514 #elif defined __GNUC__
leothedragon 0:8f0bb79ddd48 515 return value ? __builtin_clz((unsigned int) value << 24) : 8;
leothedragon 0:8f0bb79ddd48 516 #else
leothedragon 0:8f0bb79ddd48 517 uint_fast8_t cnt = 0;
leothedragon 0:8f0bb79ddd48 518 if (value == 0) {
leothedragon 0:8f0bb79ddd48 519 return 8;
leothedragon 0:8f0bb79ddd48 520 }
leothedragon 0:8f0bb79ddd48 521 if ((value & 0xF0) == 0) {
leothedragon 0:8f0bb79ddd48 522 value <<= 4;
leothedragon 0:8f0bb79ddd48 523 cnt += 4;
leothedragon 0:8f0bb79ddd48 524 }
leothedragon 0:8f0bb79ddd48 525 if ((value & 0xC0) == 0) {
leothedragon 0:8f0bb79ddd48 526 value <<= 2;
leothedragon 0:8f0bb79ddd48 527 cnt += 2;
leothedragon 0:8f0bb79ddd48 528 }
leothedragon 0:8f0bb79ddd48 529 if ((value & 0x80) == 0) {
leothedragon 0:8f0bb79ddd48 530 cnt += 1;
leothedragon 0:8f0bb79ddd48 531 }
leothedragon 0:8f0bb79ddd48 532
leothedragon 0:8f0bb79ddd48 533 return cnt;
leothedragon 0:8f0bb79ddd48 534 #endif
leothedragon 0:8f0bb79ddd48 535 }
leothedragon 0:8f0bb79ddd48 536
leothedragon 0:8f0bb79ddd48 537 COMMON_FUNCTIONS_FN uint_fast8_t common_count_leading_zeros_16(uint16_t value)
leothedragon 0:8f0bb79ddd48 538 {
leothedragon 0:8f0bb79ddd48 539 #ifdef __CC_ARM
leothedragon 0:8f0bb79ddd48 540 return value ? __clz((unsigned int) value << 16) : 16;
leothedragon 0:8f0bb79ddd48 541 #elif defined __GNUC__
leothedragon 0:8f0bb79ddd48 542 return value ? __builtin_clz((unsigned int) value << 16) : 16;
leothedragon 0:8f0bb79ddd48 543 #else
leothedragon 0:8f0bb79ddd48 544 uint_fast8_t cnt = 0;
leothedragon 0:8f0bb79ddd48 545 if (value == 0) {
leothedragon 0:8f0bb79ddd48 546 return 16;
leothedragon 0:8f0bb79ddd48 547 }
leothedragon 0:8f0bb79ddd48 548 if ((value & 0xFF00) == 0) {
leothedragon 0:8f0bb79ddd48 549 value <<= 8;
leothedragon 0:8f0bb79ddd48 550 cnt += 8;
leothedragon 0:8f0bb79ddd48 551 }
leothedragon 0:8f0bb79ddd48 552 if ((value & 0xF000) == 0) {
leothedragon 0:8f0bb79ddd48 553 value <<= 4;
leothedragon 0:8f0bb79ddd48 554 cnt += 4;
leothedragon 0:8f0bb79ddd48 555 }
leothedragon 0:8f0bb79ddd48 556 if ((value & 0xC000) == 0) {
leothedragon 0:8f0bb79ddd48 557 value <<= 2;
leothedragon 0:8f0bb79ddd48 558 cnt += 2;
leothedragon 0:8f0bb79ddd48 559 }
leothedragon 0:8f0bb79ddd48 560 if ((value & 0x8000) == 0) {
leothedragon 0:8f0bb79ddd48 561 cnt += 1;
leothedragon 0:8f0bb79ddd48 562 }
leothedragon 0:8f0bb79ddd48 563
leothedragon 0:8f0bb79ddd48 564 return cnt;
leothedragon 0:8f0bb79ddd48 565 #endif
leothedragon 0:8f0bb79ddd48 566 }
leothedragon 0:8f0bb79ddd48 567
leothedragon 0:8f0bb79ddd48 568 COMMON_FUNCTIONS_FN uint_fast8_t common_count_leading_zeros_32(uint32_t value)
leothedragon 0:8f0bb79ddd48 569 {
leothedragon 0:8f0bb79ddd48 570 #ifdef __CC_ARM
leothedragon 0:8f0bb79ddd48 571 return __clz(value);
leothedragon 0:8f0bb79ddd48 572 #elif defined __GNUC__
leothedragon 0:8f0bb79ddd48 573 return value ? __builtin_clz(value) : 32;
leothedragon 0:8f0bb79ddd48 574 #else
leothedragon 0:8f0bb79ddd48 575 uint_fast8_t cnt = 0;
leothedragon 0:8f0bb79ddd48 576 if (value == 0) {
leothedragon 0:8f0bb79ddd48 577 return 32;
leothedragon 0:8f0bb79ddd48 578 }
leothedragon 0:8f0bb79ddd48 579 if ((value & 0xFFFF0000) == 0) {
leothedragon 0:8f0bb79ddd48 580 value <<= 16;
leothedragon 0:8f0bb79ddd48 581 cnt += 16;
leothedragon 0:8f0bb79ddd48 582 }
leothedragon 0:8f0bb79ddd48 583 if ((value & 0xFF000000) == 0) {
leothedragon 0:8f0bb79ddd48 584 value <<= 8;
leothedragon 0:8f0bb79ddd48 585 cnt += 8;
leothedragon 0:8f0bb79ddd48 586 }
leothedragon 0:8f0bb79ddd48 587 if ((value & 0xF0000000) == 0) {
leothedragon 0:8f0bb79ddd48 588 value <<= 4;
leothedragon 0:8f0bb79ddd48 589 cnt += 4;
leothedragon 0:8f0bb79ddd48 590 }
leothedragon 0:8f0bb79ddd48 591 if ((value & 0xC0000000) == 0) {
leothedragon 0:8f0bb79ddd48 592 value <<= 2;
leothedragon 0:8f0bb79ddd48 593 cnt += 2;
leothedragon 0:8f0bb79ddd48 594 }
leothedragon 0:8f0bb79ddd48 595 if ((value & 0x80000000) == 0) {
leothedragon 0:8f0bb79ddd48 596 cnt += 1;
leothedragon 0:8f0bb79ddd48 597 }
leothedragon 0:8f0bb79ddd48 598
leothedragon 0:8f0bb79ddd48 599 return cnt;
leothedragon 0:8f0bb79ddd48 600 #endif
leothedragon 0:8f0bb79ddd48 601 }
leothedragon 0:8f0bb79ddd48 602
leothedragon 0:8f0bb79ddd48 603 COMMON_FUNCTIONS_FN bool common_serial_number_greater_8(uint8_t s1, uint8_t s2)
leothedragon 0:8f0bb79ddd48 604 {
leothedragon 0:8f0bb79ddd48 605 return (s1 > s2 && s1 - s2 < UINT8_C(0x80)) || (s1 < s2 && s2 - s1 > UINT8_C(0x80));
leothedragon 0:8f0bb79ddd48 606 }
leothedragon 0:8f0bb79ddd48 607
leothedragon 0:8f0bb79ddd48 608 COMMON_FUNCTIONS_FN bool common_serial_number_greater_16(uint16_t s1, uint16_t s2)
leothedragon 0:8f0bb79ddd48 609 {
leothedragon 0:8f0bb79ddd48 610 return (s1 > s2 && s1 - s2 < UINT16_C(0x8000)) || (s1 < s2 && s2 - s1 > UINT16_C(0x8000));
leothedragon 0:8f0bb79ddd48 611 }
leothedragon 0:8f0bb79ddd48 612
leothedragon 0:8f0bb79ddd48 613 COMMON_FUNCTIONS_FN bool common_serial_number_greater_32(uint32_t s1, uint32_t s2)
leothedragon 0:8f0bb79ddd48 614 {
leothedragon 0:8f0bb79ddd48 615 return (s1 > s2 && s1 - s2 < UINT32_C(0x80000000)) || (s1 < s2 && s2 - s1 > UINT32_C(0x80000000));
leothedragon 0:8f0bb79ddd48 616 }
leothedragon 0:8f0bb79ddd48 617
leothedragon 0:8f0bb79ddd48 618 COMMON_FUNCTIONS_FN bool bit_test(const uint8_t *bitset, uint_fast8_t bit)
leothedragon 0:8f0bb79ddd48 619 {
leothedragon 0:8f0bb79ddd48 620 return bitset[bit >> 3] & (0x80 >> (bit & 7));
leothedragon 0:8f0bb79ddd48 621 }
leothedragon 0:8f0bb79ddd48 622
leothedragon 0:8f0bb79ddd48 623 COMMON_FUNCTIONS_FN void bit_set(uint8_t *bitset, uint_fast8_t bit)
leothedragon 0:8f0bb79ddd48 624 {
leothedragon 0:8f0bb79ddd48 625 bitset[bit >> 3] |= (0x80 >> (bit & 7));
leothedragon 0:8f0bb79ddd48 626 }
leothedragon 0:8f0bb79ddd48 627
leothedragon 0:8f0bb79ddd48 628 COMMON_FUNCTIONS_FN void bit_clear(uint8_t *bitset, uint_fast8_t bit)
leothedragon 0:8f0bb79ddd48 629 {
leothedragon 0:8f0bb79ddd48 630 bitset[bit >> 3] &= ~(0x80 >> (bit & 7));
leothedragon 0:8f0bb79ddd48 631 }
leothedragon 0:8f0bb79ddd48 632
leothedragon 0:8f0bb79ddd48 633 #endif /* defined NS_ALLOW_INLINING || defined COMMON_FUNCTIONS_FN */
leothedragon 0:8f0bb79ddd48 634
leothedragon 0:8f0bb79ddd48 635 #ifdef __cplusplus
leothedragon 0:8f0bb79ddd48 636 }
leothedragon 0:8f0bb79ddd48 637 #endif
leothedragon 0:8f0bb79ddd48 638 #endif /*__COMMON_FUNCTIONS_H_*/