DHT11
TARGET_NUCLEO_F072RB/core_cmInstr.h@0:c52df770855b, 2015-08-13 (annotated)
- Committer:
- jhon309
- Date:
- Thu Aug 13 00:21:57 2015 +0000
- Revision:
- 0:c52df770855b
DHT11
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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jhon309 | 0:c52df770855b | 1 | /**************************************************************************//** |
jhon309 | 0:c52df770855b | 2 | * @file core_cmInstr.h |
jhon309 | 0:c52df770855b | 3 | * @brief CMSIS Cortex-M Core Instruction Access Header File |
jhon309 | 0:c52df770855b | 4 | * @version V3.20 |
jhon309 | 0:c52df770855b | 5 | * @date 05. March 2013 |
jhon309 | 0:c52df770855b | 6 | * |
jhon309 | 0:c52df770855b | 7 | * @note |
jhon309 | 0:c52df770855b | 8 | * |
jhon309 | 0:c52df770855b | 9 | ******************************************************************************/ |
jhon309 | 0:c52df770855b | 10 | /* Copyright (c) 2009 - 2013 ARM LIMITED |
jhon309 | 0:c52df770855b | 11 | |
jhon309 | 0:c52df770855b | 12 | All rights reserved. |
jhon309 | 0:c52df770855b | 13 | Redistribution and use in source and binary forms, with or without |
jhon309 | 0:c52df770855b | 14 | modification, are permitted provided that the following conditions are met: |
jhon309 | 0:c52df770855b | 15 | - Redistributions of source code must retain the above copyright |
jhon309 | 0:c52df770855b | 16 | notice, this list of conditions and the following disclaimer. |
jhon309 | 0:c52df770855b | 17 | - Redistributions in binary form must reproduce the above copyright |
jhon309 | 0:c52df770855b | 18 | notice, this list of conditions and the following disclaimer in the |
jhon309 | 0:c52df770855b | 19 | documentation and/or other materials provided with the distribution. |
jhon309 | 0:c52df770855b | 20 | - Neither the name of ARM nor the names of its contributors may be used |
jhon309 | 0:c52df770855b | 21 | to endorse or promote products derived from this software without |
jhon309 | 0:c52df770855b | 22 | specific prior written permission. |
jhon309 | 0:c52df770855b | 23 | * |
jhon309 | 0:c52df770855b | 24 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
jhon309 | 0:c52df770855b | 25 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
jhon309 | 0:c52df770855b | 26 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
jhon309 | 0:c52df770855b | 27 | ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
jhon309 | 0:c52df770855b | 28 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
jhon309 | 0:c52df770855b | 29 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
jhon309 | 0:c52df770855b | 30 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
jhon309 | 0:c52df770855b | 31 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
jhon309 | 0:c52df770855b | 32 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
jhon309 | 0:c52df770855b | 33 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
jhon309 | 0:c52df770855b | 34 | POSSIBILITY OF SUCH DAMAGE. |
jhon309 | 0:c52df770855b | 35 | ---------------------------------------------------------------------------*/ |
jhon309 | 0:c52df770855b | 36 | |
jhon309 | 0:c52df770855b | 37 | |
jhon309 | 0:c52df770855b | 38 | #ifndef __CORE_CMINSTR_H |
jhon309 | 0:c52df770855b | 39 | #define __CORE_CMINSTR_H |
jhon309 | 0:c52df770855b | 40 | |
jhon309 | 0:c52df770855b | 41 | |
jhon309 | 0:c52df770855b | 42 | /* ########################## Core Instruction Access ######################### */ |
jhon309 | 0:c52df770855b | 43 | /** \defgroup CMSIS_Core_InstructionInterface CMSIS Core Instruction Interface |
jhon309 | 0:c52df770855b | 44 | Access to dedicated instructions |
jhon309 | 0:c52df770855b | 45 | @{ |
jhon309 | 0:c52df770855b | 46 | */ |
jhon309 | 0:c52df770855b | 47 | |
jhon309 | 0:c52df770855b | 48 | #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ |
jhon309 | 0:c52df770855b | 49 | /* ARM armcc specific functions */ |
jhon309 | 0:c52df770855b | 50 | |
jhon309 | 0:c52df770855b | 51 | #if (__ARMCC_VERSION < 400677) |
jhon309 | 0:c52df770855b | 52 | #error "Please use ARM Compiler Toolchain V4.0.677 or later!" |
jhon309 | 0:c52df770855b | 53 | #endif |
jhon309 | 0:c52df770855b | 54 | |
jhon309 | 0:c52df770855b | 55 | |
jhon309 | 0:c52df770855b | 56 | /** \brief No Operation |
jhon309 | 0:c52df770855b | 57 | |
jhon309 | 0:c52df770855b | 58 | No Operation does nothing. This instruction can be used for code alignment purposes. |
jhon309 | 0:c52df770855b | 59 | */ |
jhon309 | 0:c52df770855b | 60 | #define __NOP __nop |
jhon309 | 0:c52df770855b | 61 | |
jhon309 | 0:c52df770855b | 62 | |
jhon309 | 0:c52df770855b | 63 | /** \brief Wait For Interrupt |
jhon309 | 0:c52df770855b | 64 | |
jhon309 | 0:c52df770855b | 65 | Wait For Interrupt is a hint instruction that suspends execution |
jhon309 | 0:c52df770855b | 66 | until one of a number of events occurs. |
jhon309 | 0:c52df770855b | 67 | */ |
jhon309 | 0:c52df770855b | 68 | #define __WFI __wfi |
jhon309 | 0:c52df770855b | 69 | |
jhon309 | 0:c52df770855b | 70 | |
jhon309 | 0:c52df770855b | 71 | /** \brief Wait For Event |
jhon309 | 0:c52df770855b | 72 | |
jhon309 | 0:c52df770855b | 73 | Wait For Event is a hint instruction that permits the processor to enter |
jhon309 | 0:c52df770855b | 74 | a low-power state until one of a number of events occurs. |
jhon309 | 0:c52df770855b | 75 | */ |
jhon309 | 0:c52df770855b | 76 | #define __WFE __wfe |
jhon309 | 0:c52df770855b | 77 | |
jhon309 | 0:c52df770855b | 78 | |
jhon309 | 0:c52df770855b | 79 | /** \brief Send Event |
jhon309 | 0:c52df770855b | 80 | |
jhon309 | 0:c52df770855b | 81 | Send Event is a hint instruction. It causes an event to be signaled to the CPU. |
jhon309 | 0:c52df770855b | 82 | */ |
jhon309 | 0:c52df770855b | 83 | #define __SEV __sev |
jhon309 | 0:c52df770855b | 84 | |
jhon309 | 0:c52df770855b | 85 | |
jhon309 | 0:c52df770855b | 86 | /** \brief Instruction Synchronization Barrier |
jhon309 | 0:c52df770855b | 87 | |
jhon309 | 0:c52df770855b | 88 | Instruction Synchronization Barrier flushes the pipeline in the processor, |
jhon309 | 0:c52df770855b | 89 | so that all instructions following the ISB are fetched from cache or |
jhon309 | 0:c52df770855b | 90 | memory, after the instruction has been completed. |
jhon309 | 0:c52df770855b | 91 | */ |
jhon309 | 0:c52df770855b | 92 | #define __ISB() __isb(0xF) |
jhon309 | 0:c52df770855b | 93 | |
jhon309 | 0:c52df770855b | 94 | |
jhon309 | 0:c52df770855b | 95 | /** \brief Data Synchronization Barrier |
jhon309 | 0:c52df770855b | 96 | |
jhon309 | 0:c52df770855b | 97 | This function acts as a special kind of Data Memory Barrier. |
jhon309 | 0:c52df770855b | 98 | It completes when all explicit memory accesses before this instruction complete. |
jhon309 | 0:c52df770855b | 99 | */ |
jhon309 | 0:c52df770855b | 100 | #define __DSB() __dsb(0xF) |
jhon309 | 0:c52df770855b | 101 | |
jhon309 | 0:c52df770855b | 102 | |
jhon309 | 0:c52df770855b | 103 | /** \brief Data Memory Barrier |
jhon309 | 0:c52df770855b | 104 | |
jhon309 | 0:c52df770855b | 105 | This function ensures the apparent order of the explicit memory operations before |
jhon309 | 0:c52df770855b | 106 | and after the instruction, without ensuring their completion. |
jhon309 | 0:c52df770855b | 107 | */ |
jhon309 | 0:c52df770855b | 108 | #define __DMB() __dmb(0xF) |
jhon309 | 0:c52df770855b | 109 | |
jhon309 | 0:c52df770855b | 110 | |
jhon309 | 0:c52df770855b | 111 | /** \brief Reverse byte order (32 bit) |
jhon309 | 0:c52df770855b | 112 | |
jhon309 | 0:c52df770855b | 113 | This function reverses the byte order in integer value. |
jhon309 | 0:c52df770855b | 114 | |
jhon309 | 0:c52df770855b | 115 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 116 | \return Reversed value |
jhon309 | 0:c52df770855b | 117 | */ |
jhon309 | 0:c52df770855b | 118 | #define __REV __rev |
jhon309 | 0:c52df770855b | 119 | |
jhon309 | 0:c52df770855b | 120 | |
jhon309 | 0:c52df770855b | 121 | /** \brief Reverse byte order (16 bit) |
jhon309 | 0:c52df770855b | 122 | |
jhon309 | 0:c52df770855b | 123 | This function reverses the byte order in two unsigned short values. |
jhon309 | 0:c52df770855b | 124 | |
jhon309 | 0:c52df770855b | 125 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 126 | \return Reversed value |
jhon309 | 0:c52df770855b | 127 | */ |
jhon309 | 0:c52df770855b | 128 | #ifndef __NO_EMBEDDED_ASM |
jhon309 | 0:c52df770855b | 129 | __attribute__((section(".rev16_text"))) __STATIC_INLINE __ASM uint32_t __REV16(uint32_t value) |
jhon309 | 0:c52df770855b | 130 | { |
jhon309 | 0:c52df770855b | 131 | rev16 r0, r0 |
jhon309 | 0:c52df770855b | 132 | bx lr |
jhon309 | 0:c52df770855b | 133 | } |
jhon309 | 0:c52df770855b | 134 | #endif |
jhon309 | 0:c52df770855b | 135 | |
jhon309 | 0:c52df770855b | 136 | /** \brief Reverse byte order in signed short value |
jhon309 | 0:c52df770855b | 137 | |
jhon309 | 0:c52df770855b | 138 | This function reverses the byte order in a signed short value with sign extension to integer. |
jhon309 | 0:c52df770855b | 139 | |
jhon309 | 0:c52df770855b | 140 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 141 | \return Reversed value |
jhon309 | 0:c52df770855b | 142 | */ |
jhon309 | 0:c52df770855b | 143 | #ifndef __NO_EMBEDDED_ASM |
jhon309 | 0:c52df770855b | 144 | __attribute__((section(".revsh_text"))) __STATIC_INLINE __ASM int32_t __REVSH(int32_t value) |
jhon309 | 0:c52df770855b | 145 | { |
jhon309 | 0:c52df770855b | 146 | revsh r0, r0 |
jhon309 | 0:c52df770855b | 147 | bx lr |
jhon309 | 0:c52df770855b | 148 | } |
jhon309 | 0:c52df770855b | 149 | #endif |
jhon309 | 0:c52df770855b | 150 | |
jhon309 | 0:c52df770855b | 151 | |
jhon309 | 0:c52df770855b | 152 | /** \brief Rotate Right in unsigned value (32 bit) |
jhon309 | 0:c52df770855b | 153 | |
jhon309 | 0:c52df770855b | 154 | This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits. |
jhon309 | 0:c52df770855b | 155 | |
jhon309 | 0:c52df770855b | 156 | \param [in] value Value to rotate |
jhon309 | 0:c52df770855b | 157 | \param [in] value Number of Bits to rotate |
jhon309 | 0:c52df770855b | 158 | \return Rotated value |
jhon309 | 0:c52df770855b | 159 | */ |
jhon309 | 0:c52df770855b | 160 | #define __ROR __ror |
jhon309 | 0:c52df770855b | 161 | |
jhon309 | 0:c52df770855b | 162 | |
jhon309 | 0:c52df770855b | 163 | /** \brief Breakpoint |
jhon309 | 0:c52df770855b | 164 | |
jhon309 | 0:c52df770855b | 165 | This function causes the processor to enter Debug state. |
jhon309 | 0:c52df770855b | 166 | Debug tools can use this to investigate system state when the instruction at a particular address is reached. |
jhon309 | 0:c52df770855b | 167 | |
jhon309 | 0:c52df770855b | 168 | \param [in] value is ignored by the processor. |
jhon309 | 0:c52df770855b | 169 | If required, a debugger can use it to store additional information about the breakpoint. |
jhon309 | 0:c52df770855b | 170 | */ |
jhon309 | 0:c52df770855b | 171 | #define __BKPT(value) __breakpoint(value) |
jhon309 | 0:c52df770855b | 172 | |
jhon309 | 0:c52df770855b | 173 | |
jhon309 | 0:c52df770855b | 174 | #if (__CORTEX_M >= 0x03) |
jhon309 | 0:c52df770855b | 175 | |
jhon309 | 0:c52df770855b | 176 | /** \brief Reverse bit order of value |
jhon309 | 0:c52df770855b | 177 | |
jhon309 | 0:c52df770855b | 178 | This function reverses the bit order of the given value. |
jhon309 | 0:c52df770855b | 179 | |
jhon309 | 0:c52df770855b | 180 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 181 | \return Reversed value |
jhon309 | 0:c52df770855b | 182 | */ |
jhon309 | 0:c52df770855b | 183 | #define __RBIT __rbit |
jhon309 | 0:c52df770855b | 184 | |
jhon309 | 0:c52df770855b | 185 | |
jhon309 | 0:c52df770855b | 186 | /** \brief LDR Exclusive (8 bit) |
jhon309 | 0:c52df770855b | 187 | |
jhon309 | 0:c52df770855b | 188 | This function performs a exclusive LDR command for 8 bit value. |
jhon309 | 0:c52df770855b | 189 | |
jhon309 | 0:c52df770855b | 190 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 191 | \return value of type uint8_t at (*ptr) |
jhon309 | 0:c52df770855b | 192 | */ |
jhon309 | 0:c52df770855b | 193 | #define __LDREXB(ptr) ((uint8_t ) __ldrex(ptr)) |
jhon309 | 0:c52df770855b | 194 | |
jhon309 | 0:c52df770855b | 195 | |
jhon309 | 0:c52df770855b | 196 | /** \brief LDR Exclusive (16 bit) |
jhon309 | 0:c52df770855b | 197 | |
jhon309 | 0:c52df770855b | 198 | This function performs a exclusive LDR command for 16 bit values. |
jhon309 | 0:c52df770855b | 199 | |
jhon309 | 0:c52df770855b | 200 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 201 | \return value of type uint16_t at (*ptr) |
jhon309 | 0:c52df770855b | 202 | */ |
jhon309 | 0:c52df770855b | 203 | #define __LDREXH(ptr) ((uint16_t) __ldrex(ptr)) |
jhon309 | 0:c52df770855b | 204 | |
jhon309 | 0:c52df770855b | 205 | |
jhon309 | 0:c52df770855b | 206 | /** \brief LDR Exclusive (32 bit) |
jhon309 | 0:c52df770855b | 207 | |
jhon309 | 0:c52df770855b | 208 | This function performs a exclusive LDR command for 32 bit values. |
jhon309 | 0:c52df770855b | 209 | |
jhon309 | 0:c52df770855b | 210 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 211 | \return value of type uint32_t at (*ptr) |
jhon309 | 0:c52df770855b | 212 | */ |
jhon309 | 0:c52df770855b | 213 | #define __LDREXW(ptr) ((uint32_t ) __ldrex(ptr)) |
jhon309 | 0:c52df770855b | 214 | |
jhon309 | 0:c52df770855b | 215 | |
jhon309 | 0:c52df770855b | 216 | /** \brief STR Exclusive (8 bit) |
jhon309 | 0:c52df770855b | 217 | |
jhon309 | 0:c52df770855b | 218 | This function performs a exclusive STR command for 8 bit values. |
jhon309 | 0:c52df770855b | 219 | |
jhon309 | 0:c52df770855b | 220 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 221 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 222 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 223 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 224 | */ |
jhon309 | 0:c52df770855b | 225 | #define __STREXB(value, ptr) __strex(value, ptr) |
jhon309 | 0:c52df770855b | 226 | |
jhon309 | 0:c52df770855b | 227 | |
jhon309 | 0:c52df770855b | 228 | /** \brief STR Exclusive (16 bit) |
jhon309 | 0:c52df770855b | 229 | |
jhon309 | 0:c52df770855b | 230 | This function performs a exclusive STR command for 16 bit values. |
jhon309 | 0:c52df770855b | 231 | |
jhon309 | 0:c52df770855b | 232 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 233 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 234 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 235 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 236 | */ |
jhon309 | 0:c52df770855b | 237 | #define __STREXH(value, ptr) __strex(value, ptr) |
jhon309 | 0:c52df770855b | 238 | |
jhon309 | 0:c52df770855b | 239 | |
jhon309 | 0:c52df770855b | 240 | /** \brief STR Exclusive (32 bit) |
jhon309 | 0:c52df770855b | 241 | |
jhon309 | 0:c52df770855b | 242 | This function performs a exclusive STR command for 32 bit values. |
jhon309 | 0:c52df770855b | 243 | |
jhon309 | 0:c52df770855b | 244 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 245 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 246 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 247 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 248 | */ |
jhon309 | 0:c52df770855b | 249 | #define __STREXW(value, ptr) __strex(value, ptr) |
jhon309 | 0:c52df770855b | 250 | |
jhon309 | 0:c52df770855b | 251 | |
jhon309 | 0:c52df770855b | 252 | /** \brief Remove the exclusive lock |
jhon309 | 0:c52df770855b | 253 | |
jhon309 | 0:c52df770855b | 254 | This function removes the exclusive lock which is created by LDREX. |
jhon309 | 0:c52df770855b | 255 | |
jhon309 | 0:c52df770855b | 256 | */ |
jhon309 | 0:c52df770855b | 257 | #define __CLREX __clrex |
jhon309 | 0:c52df770855b | 258 | |
jhon309 | 0:c52df770855b | 259 | |
jhon309 | 0:c52df770855b | 260 | /** \brief Signed Saturate |
jhon309 | 0:c52df770855b | 261 | |
jhon309 | 0:c52df770855b | 262 | This function saturates a signed value. |
jhon309 | 0:c52df770855b | 263 | |
jhon309 | 0:c52df770855b | 264 | \param [in] value Value to be saturated |
jhon309 | 0:c52df770855b | 265 | \param [in] sat Bit position to saturate to (1..32) |
jhon309 | 0:c52df770855b | 266 | \return Saturated value |
jhon309 | 0:c52df770855b | 267 | */ |
jhon309 | 0:c52df770855b | 268 | #define __SSAT __ssat |
jhon309 | 0:c52df770855b | 269 | |
jhon309 | 0:c52df770855b | 270 | |
jhon309 | 0:c52df770855b | 271 | /** \brief Unsigned Saturate |
jhon309 | 0:c52df770855b | 272 | |
jhon309 | 0:c52df770855b | 273 | This function saturates an unsigned value. |
jhon309 | 0:c52df770855b | 274 | |
jhon309 | 0:c52df770855b | 275 | \param [in] value Value to be saturated |
jhon309 | 0:c52df770855b | 276 | \param [in] sat Bit position to saturate to (0..31) |
jhon309 | 0:c52df770855b | 277 | \return Saturated value |
jhon309 | 0:c52df770855b | 278 | */ |
jhon309 | 0:c52df770855b | 279 | #define __USAT __usat |
jhon309 | 0:c52df770855b | 280 | |
jhon309 | 0:c52df770855b | 281 | |
jhon309 | 0:c52df770855b | 282 | /** \brief Count leading zeros |
jhon309 | 0:c52df770855b | 283 | |
jhon309 | 0:c52df770855b | 284 | This function counts the number of leading zeros of a data value. |
jhon309 | 0:c52df770855b | 285 | |
jhon309 | 0:c52df770855b | 286 | \param [in] value Value to count the leading zeros |
jhon309 | 0:c52df770855b | 287 | \return number of leading zeros in value |
jhon309 | 0:c52df770855b | 288 | */ |
jhon309 | 0:c52df770855b | 289 | #define __CLZ __clz |
jhon309 | 0:c52df770855b | 290 | |
jhon309 | 0:c52df770855b | 291 | #endif /* (__CORTEX_M >= 0x03) */ |
jhon309 | 0:c52df770855b | 292 | |
jhon309 | 0:c52df770855b | 293 | |
jhon309 | 0:c52df770855b | 294 | |
jhon309 | 0:c52df770855b | 295 | #elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/ |
jhon309 | 0:c52df770855b | 296 | /* IAR iccarm specific functions */ |
jhon309 | 0:c52df770855b | 297 | |
jhon309 | 0:c52df770855b | 298 | #include <cmsis_iar.h> |
jhon309 | 0:c52df770855b | 299 | |
jhon309 | 0:c52df770855b | 300 | |
jhon309 | 0:c52df770855b | 301 | #elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/ |
jhon309 | 0:c52df770855b | 302 | /* TI CCS specific functions */ |
jhon309 | 0:c52df770855b | 303 | |
jhon309 | 0:c52df770855b | 304 | #include <cmsis_ccs.h> |
jhon309 | 0:c52df770855b | 305 | |
jhon309 | 0:c52df770855b | 306 | |
jhon309 | 0:c52df770855b | 307 | #elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/ |
jhon309 | 0:c52df770855b | 308 | /* GNU gcc specific functions */ |
jhon309 | 0:c52df770855b | 309 | |
jhon309 | 0:c52df770855b | 310 | /* Define macros for porting to both thumb1 and thumb2. |
jhon309 | 0:c52df770855b | 311 | * For thumb1, use low register (r0-r7), specified by constrant "l" |
jhon309 | 0:c52df770855b | 312 | * Otherwise, use general registers, specified by constrant "r" */ |
jhon309 | 0:c52df770855b | 313 | #if defined (__thumb__) && !defined (__thumb2__) |
jhon309 | 0:c52df770855b | 314 | #define __CMSIS_GCC_OUT_REG(r) "=l" (r) |
jhon309 | 0:c52df770855b | 315 | #define __CMSIS_GCC_USE_REG(r) "l" (r) |
jhon309 | 0:c52df770855b | 316 | #else |
jhon309 | 0:c52df770855b | 317 | #define __CMSIS_GCC_OUT_REG(r) "=r" (r) |
jhon309 | 0:c52df770855b | 318 | #define __CMSIS_GCC_USE_REG(r) "r" (r) |
jhon309 | 0:c52df770855b | 319 | #endif |
jhon309 | 0:c52df770855b | 320 | |
jhon309 | 0:c52df770855b | 321 | /** \brief No Operation |
jhon309 | 0:c52df770855b | 322 | |
jhon309 | 0:c52df770855b | 323 | No Operation does nothing. This instruction can be used for code alignment purposes. |
jhon309 | 0:c52df770855b | 324 | */ |
jhon309 | 0:c52df770855b | 325 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __NOP(void) |
jhon309 | 0:c52df770855b | 326 | { |
jhon309 | 0:c52df770855b | 327 | __ASM volatile ("nop"); |
jhon309 | 0:c52df770855b | 328 | } |
jhon309 | 0:c52df770855b | 329 | |
jhon309 | 0:c52df770855b | 330 | |
jhon309 | 0:c52df770855b | 331 | /** \brief Wait For Interrupt |
jhon309 | 0:c52df770855b | 332 | |
jhon309 | 0:c52df770855b | 333 | Wait For Interrupt is a hint instruction that suspends execution |
jhon309 | 0:c52df770855b | 334 | until one of a number of events occurs. |
jhon309 | 0:c52df770855b | 335 | */ |
jhon309 | 0:c52df770855b | 336 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __WFI(void) |
jhon309 | 0:c52df770855b | 337 | { |
jhon309 | 0:c52df770855b | 338 | __ASM volatile ("wfi"); |
jhon309 | 0:c52df770855b | 339 | } |
jhon309 | 0:c52df770855b | 340 | |
jhon309 | 0:c52df770855b | 341 | |
jhon309 | 0:c52df770855b | 342 | /** \brief Wait For Event |
jhon309 | 0:c52df770855b | 343 | |
jhon309 | 0:c52df770855b | 344 | Wait For Event is a hint instruction that permits the processor to enter |
jhon309 | 0:c52df770855b | 345 | a low-power state until one of a number of events occurs. |
jhon309 | 0:c52df770855b | 346 | */ |
jhon309 | 0:c52df770855b | 347 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __WFE(void) |
jhon309 | 0:c52df770855b | 348 | { |
jhon309 | 0:c52df770855b | 349 | __ASM volatile ("wfe"); |
jhon309 | 0:c52df770855b | 350 | } |
jhon309 | 0:c52df770855b | 351 | |
jhon309 | 0:c52df770855b | 352 | |
jhon309 | 0:c52df770855b | 353 | /** \brief Send Event |
jhon309 | 0:c52df770855b | 354 | |
jhon309 | 0:c52df770855b | 355 | Send Event is a hint instruction. It causes an event to be signaled to the CPU. |
jhon309 | 0:c52df770855b | 356 | */ |
jhon309 | 0:c52df770855b | 357 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __SEV(void) |
jhon309 | 0:c52df770855b | 358 | { |
jhon309 | 0:c52df770855b | 359 | __ASM volatile ("sev"); |
jhon309 | 0:c52df770855b | 360 | } |
jhon309 | 0:c52df770855b | 361 | |
jhon309 | 0:c52df770855b | 362 | |
jhon309 | 0:c52df770855b | 363 | /** \brief Instruction Synchronization Barrier |
jhon309 | 0:c52df770855b | 364 | |
jhon309 | 0:c52df770855b | 365 | Instruction Synchronization Barrier flushes the pipeline in the processor, |
jhon309 | 0:c52df770855b | 366 | so that all instructions following the ISB are fetched from cache or |
jhon309 | 0:c52df770855b | 367 | memory, after the instruction has been completed. |
jhon309 | 0:c52df770855b | 368 | */ |
jhon309 | 0:c52df770855b | 369 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __ISB(void) |
jhon309 | 0:c52df770855b | 370 | { |
jhon309 | 0:c52df770855b | 371 | __ASM volatile ("isb"); |
jhon309 | 0:c52df770855b | 372 | } |
jhon309 | 0:c52df770855b | 373 | |
jhon309 | 0:c52df770855b | 374 | |
jhon309 | 0:c52df770855b | 375 | /** \brief Data Synchronization Barrier |
jhon309 | 0:c52df770855b | 376 | |
jhon309 | 0:c52df770855b | 377 | This function acts as a special kind of Data Memory Barrier. |
jhon309 | 0:c52df770855b | 378 | It completes when all explicit memory accesses before this instruction complete. |
jhon309 | 0:c52df770855b | 379 | */ |
jhon309 | 0:c52df770855b | 380 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __DSB(void) |
jhon309 | 0:c52df770855b | 381 | { |
jhon309 | 0:c52df770855b | 382 | __ASM volatile ("dsb"); |
jhon309 | 0:c52df770855b | 383 | } |
jhon309 | 0:c52df770855b | 384 | |
jhon309 | 0:c52df770855b | 385 | |
jhon309 | 0:c52df770855b | 386 | /** \brief Data Memory Barrier |
jhon309 | 0:c52df770855b | 387 | |
jhon309 | 0:c52df770855b | 388 | This function ensures the apparent order of the explicit memory operations before |
jhon309 | 0:c52df770855b | 389 | and after the instruction, without ensuring their completion. |
jhon309 | 0:c52df770855b | 390 | */ |
jhon309 | 0:c52df770855b | 391 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __DMB(void) |
jhon309 | 0:c52df770855b | 392 | { |
jhon309 | 0:c52df770855b | 393 | __ASM volatile ("dmb"); |
jhon309 | 0:c52df770855b | 394 | } |
jhon309 | 0:c52df770855b | 395 | |
jhon309 | 0:c52df770855b | 396 | |
jhon309 | 0:c52df770855b | 397 | /** \brief Reverse byte order (32 bit) |
jhon309 | 0:c52df770855b | 398 | |
jhon309 | 0:c52df770855b | 399 | This function reverses the byte order in integer value. |
jhon309 | 0:c52df770855b | 400 | |
jhon309 | 0:c52df770855b | 401 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 402 | \return Reversed value |
jhon309 | 0:c52df770855b | 403 | */ |
jhon309 | 0:c52df770855b | 404 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV(uint32_t value) |
jhon309 | 0:c52df770855b | 405 | { |
jhon309 | 0:c52df770855b | 406 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) |
jhon309 | 0:c52df770855b | 407 | return __builtin_bswap32(value); |
jhon309 | 0:c52df770855b | 408 | #else |
jhon309 | 0:c52df770855b | 409 | uint32_t result; |
jhon309 | 0:c52df770855b | 410 | |
jhon309 | 0:c52df770855b | 411 | __ASM volatile ("rev %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) ); |
jhon309 | 0:c52df770855b | 412 | return(result); |
jhon309 | 0:c52df770855b | 413 | #endif |
jhon309 | 0:c52df770855b | 414 | } |
jhon309 | 0:c52df770855b | 415 | |
jhon309 | 0:c52df770855b | 416 | |
jhon309 | 0:c52df770855b | 417 | /** \brief Reverse byte order (16 bit) |
jhon309 | 0:c52df770855b | 418 | |
jhon309 | 0:c52df770855b | 419 | This function reverses the byte order in two unsigned short values. |
jhon309 | 0:c52df770855b | 420 | |
jhon309 | 0:c52df770855b | 421 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 422 | \return Reversed value |
jhon309 | 0:c52df770855b | 423 | */ |
jhon309 | 0:c52df770855b | 424 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV16(uint32_t value) |
jhon309 | 0:c52df770855b | 425 | { |
jhon309 | 0:c52df770855b | 426 | uint32_t result; |
jhon309 | 0:c52df770855b | 427 | |
jhon309 | 0:c52df770855b | 428 | __ASM volatile ("rev16 %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) ); |
jhon309 | 0:c52df770855b | 429 | return(result); |
jhon309 | 0:c52df770855b | 430 | } |
jhon309 | 0:c52df770855b | 431 | |
jhon309 | 0:c52df770855b | 432 | |
jhon309 | 0:c52df770855b | 433 | /** \brief Reverse byte order in signed short value |
jhon309 | 0:c52df770855b | 434 | |
jhon309 | 0:c52df770855b | 435 | This function reverses the byte order in a signed short value with sign extension to integer. |
jhon309 | 0:c52df770855b | 436 | |
jhon309 | 0:c52df770855b | 437 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 438 | \return Reversed value |
jhon309 | 0:c52df770855b | 439 | */ |
jhon309 | 0:c52df770855b | 440 | __attribute__( ( always_inline ) ) __STATIC_INLINE int32_t __REVSH(int32_t value) |
jhon309 | 0:c52df770855b | 441 | { |
jhon309 | 0:c52df770855b | 442 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8) |
jhon309 | 0:c52df770855b | 443 | return (short)__builtin_bswap16(value); |
jhon309 | 0:c52df770855b | 444 | #else |
jhon309 | 0:c52df770855b | 445 | uint32_t result; |
jhon309 | 0:c52df770855b | 446 | |
jhon309 | 0:c52df770855b | 447 | __ASM volatile ("revsh %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) ); |
jhon309 | 0:c52df770855b | 448 | return(result); |
jhon309 | 0:c52df770855b | 449 | #endif |
jhon309 | 0:c52df770855b | 450 | } |
jhon309 | 0:c52df770855b | 451 | |
jhon309 | 0:c52df770855b | 452 | |
jhon309 | 0:c52df770855b | 453 | /** \brief Rotate Right in unsigned value (32 bit) |
jhon309 | 0:c52df770855b | 454 | |
jhon309 | 0:c52df770855b | 455 | This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits. |
jhon309 | 0:c52df770855b | 456 | |
jhon309 | 0:c52df770855b | 457 | \param [in] value Value to rotate |
jhon309 | 0:c52df770855b | 458 | \param [in] value Number of Bits to rotate |
jhon309 | 0:c52df770855b | 459 | \return Rotated value |
jhon309 | 0:c52df770855b | 460 | */ |
jhon309 | 0:c52df770855b | 461 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __ROR(uint32_t op1, uint32_t op2) |
jhon309 | 0:c52df770855b | 462 | { |
jhon309 | 0:c52df770855b | 463 | return (op1 >> op2) | (op1 << (32 - op2)); |
jhon309 | 0:c52df770855b | 464 | } |
jhon309 | 0:c52df770855b | 465 | |
jhon309 | 0:c52df770855b | 466 | |
jhon309 | 0:c52df770855b | 467 | /** \brief Breakpoint |
jhon309 | 0:c52df770855b | 468 | |
jhon309 | 0:c52df770855b | 469 | This function causes the processor to enter Debug state. |
jhon309 | 0:c52df770855b | 470 | Debug tools can use this to investigate system state when the instruction at a particular address is reached. |
jhon309 | 0:c52df770855b | 471 | |
jhon309 | 0:c52df770855b | 472 | \param [in] value is ignored by the processor. |
jhon309 | 0:c52df770855b | 473 | If required, a debugger can use it to store additional information about the breakpoint. |
jhon309 | 0:c52df770855b | 474 | */ |
jhon309 | 0:c52df770855b | 475 | #define __BKPT(value) __ASM volatile ("bkpt "#value) |
jhon309 | 0:c52df770855b | 476 | |
jhon309 | 0:c52df770855b | 477 | |
jhon309 | 0:c52df770855b | 478 | #if (__CORTEX_M >= 0x03) |
jhon309 | 0:c52df770855b | 479 | |
jhon309 | 0:c52df770855b | 480 | /** \brief Reverse bit order of value |
jhon309 | 0:c52df770855b | 481 | |
jhon309 | 0:c52df770855b | 482 | This function reverses the bit order of the given value. |
jhon309 | 0:c52df770855b | 483 | |
jhon309 | 0:c52df770855b | 484 | \param [in] value Value to reverse |
jhon309 | 0:c52df770855b | 485 | \return Reversed value |
jhon309 | 0:c52df770855b | 486 | */ |
jhon309 | 0:c52df770855b | 487 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __RBIT(uint32_t value) |
jhon309 | 0:c52df770855b | 488 | { |
jhon309 | 0:c52df770855b | 489 | uint32_t result; |
jhon309 | 0:c52df770855b | 490 | |
jhon309 | 0:c52df770855b | 491 | __ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) ); |
jhon309 | 0:c52df770855b | 492 | return(result); |
jhon309 | 0:c52df770855b | 493 | } |
jhon309 | 0:c52df770855b | 494 | |
jhon309 | 0:c52df770855b | 495 | |
jhon309 | 0:c52df770855b | 496 | /** \brief LDR Exclusive (8 bit) |
jhon309 | 0:c52df770855b | 497 | |
jhon309 | 0:c52df770855b | 498 | This function performs a exclusive LDR command for 8 bit value. |
jhon309 | 0:c52df770855b | 499 | |
jhon309 | 0:c52df770855b | 500 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 501 | \return value of type uint8_t at (*ptr) |
jhon309 | 0:c52df770855b | 502 | */ |
jhon309 | 0:c52df770855b | 503 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __LDREXB(volatile uint8_t *addr) |
jhon309 | 0:c52df770855b | 504 | { |
jhon309 | 0:c52df770855b | 505 | uint32_t result; |
jhon309 | 0:c52df770855b | 506 | |
jhon309 | 0:c52df770855b | 507 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8) |
jhon309 | 0:c52df770855b | 508 | __ASM volatile ("ldrexb %0, %1" : "=r" (result) : "Q" (*addr) ); |
jhon309 | 0:c52df770855b | 509 | #else |
jhon309 | 0:c52df770855b | 510 | /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not |
jhon309 | 0:c52df770855b | 511 | accepted by assembler. So has to use following less efficient pattern. |
jhon309 | 0:c52df770855b | 512 | */ |
jhon309 | 0:c52df770855b | 513 | __ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) : "memory" ); |
jhon309 | 0:c52df770855b | 514 | #endif |
jhon309 | 0:c52df770855b | 515 | return(result); |
jhon309 | 0:c52df770855b | 516 | } |
jhon309 | 0:c52df770855b | 517 | |
jhon309 | 0:c52df770855b | 518 | |
jhon309 | 0:c52df770855b | 519 | /** \brief LDR Exclusive (16 bit) |
jhon309 | 0:c52df770855b | 520 | |
jhon309 | 0:c52df770855b | 521 | This function performs a exclusive LDR command for 16 bit values. |
jhon309 | 0:c52df770855b | 522 | |
jhon309 | 0:c52df770855b | 523 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 524 | \return value of type uint16_t at (*ptr) |
jhon309 | 0:c52df770855b | 525 | */ |
jhon309 | 0:c52df770855b | 526 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint16_t __LDREXH(volatile uint16_t *addr) |
jhon309 | 0:c52df770855b | 527 | { |
jhon309 | 0:c52df770855b | 528 | uint32_t result; |
jhon309 | 0:c52df770855b | 529 | |
jhon309 | 0:c52df770855b | 530 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8) |
jhon309 | 0:c52df770855b | 531 | __ASM volatile ("ldrexh %0, %1" : "=r" (result) : "Q" (*addr) ); |
jhon309 | 0:c52df770855b | 532 | #else |
jhon309 | 0:c52df770855b | 533 | /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not |
jhon309 | 0:c52df770855b | 534 | accepted by assembler. So has to use following less efficient pattern. |
jhon309 | 0:c52df770855b | 535 | */ |
jhon309 | 0:c52df770855b | 536 | __ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) : "memory" ); |
jhon309 | 0:c52df770855b | 537 | #endif |
jhon309 | 0:c52df770855b | 538 | return(result); |
jhon309 | 0:c52df770855b | 539 | } |
jhon309 | 0:c52df770855b | 540 | |
jhon309 | 0:c52df770855b | 541 | |
jhon309 | 0:c52df770855b | 542 | /** \brief LDR Exclusive (32 bit) |
jhon309 | 0:c52df770855b | 543 | |
jhon309 | 0:c52df770855b | 544 | This function performs a exclusive LDR command for 32 bit values. |
jhon309 | 0:c52df770855b | 545 | |
jhon309 | 0:c52df770855b | 546 | \param [in] ptr Pointer to data |
jhon309 | 0:c52df770855b | 547 | \return value of type uint32_t at (*ptr) |
jhon309 | 0:c52df770855b | 548 | */ |
jhon309 | 0:c52df770855b | 549 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __LDREXW(volatile uint32_t *addr) |
jhon309 | 0:c52df770855b | 550 | { |
jhon309 | 0:c52df770855b | 551 | uint32_t result; |
jhon309 | 0:c52df770855b | 552 | |
jhon309 | 0:c52df770855b | 553 | __ASM volatile ("ldrex %0, %1" : "=r" (result) : "Q" (*addr) ); |
jhon309 | 0:c52df770855b | 554 | return(result); |
jhon309 | 0:c52df770855b | 555 | } |
jhon309 | 0:c52df770855b | 556 | |
jhon309 | 0:c52df770855b | 557 | |
jhon309 | 0:c52df770855b | 558 | /** \brief STR Exclusive (8 bit) |
jhon309 | 0:c52df770855b | 559 | |
jhon309 | 0:c52df770855b | 560 | This function performs a exclusive STR command for 8 bit values. |
jhon309 | 0:c52df770855b | 561 | |
jhon309 | 0:c52df770855b | 562 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 563 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 564 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 565 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 566 | */ |
jhon309 | 0:c52df770855b | 567 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr) |
jhon309 | 0:c52df770855b | 568 | { |
jhon309 | 0:c52df770855b | 569 | uint32_t result; |
jhon309 | 0:c52df770855b | 570 | |
jhon309 | 0:c52df770855b | 571 | __ASM volatile ("strexb %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) ); |
jhon309 | 0:c52df770855b | 572 | return(result); |
jhon309 | 0:c52df770855b | 573 | } |
jhon309 | 0:c52df770855b | 574 | |
jhon309 | 0:c52df770855b | 575 | |
jhon309 | 0:c52df770855b | 576 | /** \brief STR Exclusive (16 bit) |
jhon309 | 0:c52df770855b | 577 | |
jhon309 | 0:c52df770855b | 578 | This function performs a exclusive STR command for 16 bit values. |
jhon309 | 0:c52df770855b | 579 | |
jhon309 | 0:c52df770855b | 580 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 581 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 582 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 583 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 584 | */ |
jhon309 | 0:c52df770855b | 585 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr) |
jhon309 | 0:c52df770855b | 586 | { |
jhon309 | 0:c52df770855b | 587 | uint32_t result; |
jhon309 | 0:c52df770855b | 588 | |
jhon309 | 0:c52df770855b | 589 | __ASM volatile ("strexh %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) ); |
jhon309 | 0:c52df770855b | 590 | return(result); |
jhon309 | 0:c52df770855b | 591 | } |
jhon309 | 0:c52df770855b | 592 | |
jhon309 | 0:c52df770855b | 593 | |
jhon309 | 0:c52df770855b | 594 | /** \brief STR Exclusive (32 bit) |
jhon309 | 0:c52df770855b | 595 | |
jhon309 | 0:c52df770855b | 596 | This function performs a exclusive STR command for 32 bit values. |
jhon309 | 0:c52df770855b | 597 | |
jhon309 | 0:c52df770855b | 598 | \param [in] value Value to store |
jhon309 | 0:c52df770855b | 599 | \param [in] ptr Pointer to location |
jhon309 | 0:c52df770855b | 600 | \return 0 Function succeeded |
jhon309 | 0:c52df770855b | 601 | \return 1 Function failed |
jhon309 | 0:c52df770855b | 602 | */ |
jhon309 | 0:c52df770855b | 603 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr) |
jhon309 | 0:c52df770855b | 604 | { |
jhon309 | 0:c52df770855b | 605 | uint32_t result; |
jhon309 | 0:c52df770855b | 606 | |
jhon309 | 0:c52df770855b | 607 | __ASM volatile ("strex %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) ); |
jhon309 | 0:c52df770855b | 608 | return(result); |
jhon309 | 0:c52df770855b | 609 | } |
jhon309 | 0:c52df770855b | 610 | |
jhon309 | 0:c52df770855b | 611 | |
jhon309 | 0:c52df770855b | 612 | /** \brief Remove the exclusive lock |
jhon309 | 0:c52df770855b | 613 | |
jhon309 | 0:c52df770855b | 614 | This function removes the exclusive lock which is created by LDREX. |
jhon309 | 0:c52df770855b | 615 | |
jhon309 | 0:c52df770855b | 616 | */ |
jhon309 | 0:c52df770855b | 617 | __attribute__( ( always_inline ) ) __STATIC_INLINE void __CLREX(void) |
jhon309 | 0:c52df770855b | 618 | { |
jhon309 | 0:c52df770855b | 619 | __ASM volatile ("clrex" ::: "memory"); |
jhon309 | 0:c52df770855b | 620 | } |
jhon309 | 0:c52df770855b | 621 | |
jhon309 | 0:c52df770855b | 622 | |
jhon309 | 0:c52df770855b | 623 | /** \brief Signed Saturate |
jhon309 | 0:c52df770855b | 624 | |
jhon309 | 0:c52df770855b | 625 | This function saturates a signed value. |
jhon309 | 0:c52df770855b | 626 | |
jhon309 | 0:c52df770855b | 627 | \param [in] value Value to be saturated |
jhon309 | 0:c52df770855b | 628 | \param [in] sat Bit position to saturate to (1..32) |
jhon309 | 0:c52df770855b | 629 | \return Saturated value |
jhon309 | 0:c52df770855b | 630 | */ |
jhon309 | 0:c52df770855b | 631 | #define __SSAT(ARG1,ARG2) \ |
jhon309 | 0:c52df770855b | 632 | ({ \ |
jhon309 | 0:c52df770855b | 633 | uint32_t __RES, __ARG1 = (ARG1); \ |
jhon309 | 0:c52df770855b | 634 | __ASM ("ssat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \ |
jhon309 | 0:c52df770855b | 635 | __RES; \ |
jhon309 | 0:c52df770855b | 636 | }) |
jhon309 | 0:c52df770855b | 637 | |
jhon309 | 0:c52df770855b | 638 | |
jhon309 | 0:c52df770855b | 639 | /** \brief Unsigned Saturate |
jhon309 | 0:c52df770855b | 640 | |
jhon309 | 0:c52df770855b | 641 | This function saturates an unsigned value. |
jhon309 | 0:c52df770855b | 642 | |
jhon309 | 0:c52df770855b | 643 | \param [in] value Value to be saturated |
jhon309 | 0:c52df770855b | 644 | \param [in] sat Bit position to saturate to (0..31) |
jhon309 | 0:c52df770855b | 645 | \return Saturated value |
jhon309 | 0:c52df770855b | 646 | */ |
jhon309 | 0:c52df770855b | 647 | #define __USAT(ARG1,ARG2) \ |
jhon309 | 0:c52df770855b | 648 | ({ \ |
jhon309 | 0:c52df770855b | 649 | uint32_t __RES, __ARG1 = (ARG1); \ |
jhon309 | 0:c52df770855b | 650 | __ASM ("usat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \ |
jhon309 | 0:c52df770855b | 651 | __RES; \ |
jhon309 | 0:c52df770855b | 652 | }) |
jhon309 | 0:c52df770855b | 653 | |
jhon309 | 0:c52df770855b | 654 | |
jhon309 | 0:c52df770855b | 655 | /** \brief Count leading zeros |
jhon309 | 0:c52df770855b | 656 | |
jhon309 | 0:c52df770855b | 657 | This function counts the number of leading zeros of a data value. |
jhon309 | 0:c52df770855b | 658 | |
jhon309 | 0:c52df770855b | 659 | \param [in] value Value to count the leading zeros |
jhon309 | 0:c52df770855b | 660 | \return number of leading zeros in value |
jhon309 | 0:c52df770855b | 661 | */ |
jhon309 | 0:c52df770855b | 662 | __attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __CLZ(uint32_t value) |
jhon309 | 0:c52df770855b | 663 | { |
jhon309 | 0:c52df770855b | 664 | uint32_t result; |
jhon309 | 0:c52df770855b | 665 | |
jhon309 | 0:c52df770855b | 666 | __ASM volatile ("clz %0, %1" : "=r" (result) : "r" (value) ); |
jhon309 | 0:c52df770855b | 667 | return(result); |
jhon309 | 0:c52df770855b | 668 | } |
jhon309 | 0:c52df770855b | 669 | |
jhon309 | 0:c52df770855b | 670 | #endif /* (__CORTEX_M >= 0x03) */ |
jhon309 | 0:c52df770855b | 671 | |
jhon309 | 0:c52df770855b | 672 | |
jhon309 | 0:c52df770855b | 673 | |
jhon309 | 0:c52df770855b | 674 | |
jhon309 | 0:c52df770855b | 675 | #elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/ |
jhon309 | 0:c52df770855b | 676 | /* TASKING carm specific functions */ |
jhon309 | 0:c52df770855b | 677 | |
jhon309 | 0:c52df770855b | 678 | /* |
jhon309 | 0:c52df770855b | 679 | * The CMSIS functions have been implemented as intrinsics in the compiler. |
jhon309 | 0:c52df770855b | 680 | * Please use "carm -?i" to get an up to date list of all intrinsics, |
jhon309 | 0:c52df770855b | 681 | * Including the CMSIS ones. |
jhon309 | 0:c52df770855b | 682 | */ |
jhon309 | 0:c52df770855b | 683 | |
jhon309 | 0:c52df770855b | 684 | #endif |
jhon309 | 0:c52df770855b | 685 | |
jhon309 | 0:c52df770855b | 686 | /*@}*/ /* end of group CMSIS_Core_InstructionInterface */ |
jhon309 | 0:c52df770855b | 687 | |
jhon309 | 0:c52df770855b | 688 | #endif /* __CORE_CMINSTR_H */ |