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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_DISCO_L072CZ_LRWAN1/core_cmInstr.h@143:86740a56073b, 2017-05-26 (annotated)

Committer:
AnnaBridge
Date:
Fri May 26 12:30:20 2017 +0100
Revision:
143:86740a56073b
Release 143 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 143:86740a56073b 1 /**************************************************************************//**
AnnaBridge 143:86740a56073b 2 * @file core_cmInstr.h
AnnaBridge 143:86740a56073b 3 * @brief CMSIS Cortex-M Core Instruction Access Header File
AnnaBridge 143:86740a56073b 4 * @version V4.10
AnnaBridge 143:86740a56073b 5 * @date 18. March 2015
AnnaBridge 143:86740a56073b 6 *
AnnaBridge 143:86740a56073b 7 * @note
AnnaBridge 143:86740a56073b 8 *
AnnaBridge 143:86740a56073b 9 ******************************************************************************/
AnnaBridge 143:86740a56073b 10 /* Copyright (c) 2009 - 2014 ARM LIMITED
AnnaBridge 143:86740a56073b 11
AnnaBridge 143:86740a56073b 12 All rights reserved.
AnnaBridge 143:86740a56073b 13 Redistribution and use in source and binary forms, with or without
AnnaBridge 143:86740a56073b 14 modification, are permitted provided that the following conditions are met:
AnnaBridge 143:86740a56073b 15 - Redistributions of source code must retain the above copyright
AnnaBridge 143:86740a56073b 16 notice, this list of conditions and the following disclaimer.
AnnaBridge 143:86740a56073b 17 - Redistributions in binary form must reproduce the above copyright
AnnaBridge 143:86740a56073b 18 notice, this list of conditions and the following disclaimer in the
AnnaBridge 143:86740a56073b 19 documentation and/or other materials provided with the distribution.
AnnaBridge 143:86740a56073b 20 - Neither the name of ARM nor the names of its contributors may be used
AnnaBridge 143:86740a56073b 21 to endorse or promote products derived from this software without
AnnaBridge 143:86740a56073b 22 specific prior written permission.
AnnaBridge 143:86740a56073b 23 *
AnnaBridge 143:86740a56073b 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 143:86740a56073b 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 143:86740a56073b 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
AnnaBridge 143:86740a56073b 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
AnnaBridge 143:86740a56073b 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
AnnaBridge 143:86740a56073b 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
AnnaBridge 143:86740a56073b 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AnnaBridge 143:86740a56073b 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AnnaBridge 143:86740a56073b 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
AnnaBridge 143:86740a56073b 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
AnnaBridge 143:86740a56073b 34 POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 143:86740a56073b 35 ---------------------------------------------------------------------------*/
AnnaBridge 143:86740a56073b 36
AnnaBridge 143:86740a56073b 37
AnnaBridge 143:86740a56073b 38 #ifndef __CORE_CMINSTR_H
AnnaBridge 143:86740a56073b 39 #define __CORE_CMINSTR_H
AnnaBridge 143:86740a56073b 40
AnnaBridge 143:86740a56073b 41
AnnaBridge 143:86740a56073b 42 /* ########################## Core Instruction Access ######################### */
AnnaBridge 143:86740a56073b 43 /** \defgroup CMSIS_Core_InstructionInterface CMSIS Core Instruction Interface
AnnaBridge 143:86740a56073b 44 Access to dedicated instructions
AnnaBridge 143:86740a56073b 45 @{
AnnaBridge 143:86740a56073b 46 */
AnnaBridge 143:86740a56073b 47
AnnaBridge 143:86740a56073b 48 #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
AnnaBridge 143:86740a56073b 49 /* ARM armcc specific functions */
AnnaBridge 143:86740a56073b 50
AnnaBridge 143:86740a56073b 51 #if (__ARMCC_VERSION < 400677)
AnnaBridge 143:86740a56073b 52 #error "Please use ARM Compiler Toolchain V4.0.677 or later!"
AnnaBridge 143:86740a56073b 53 #endif
AnnaBridge 143:86740a56073b 54
AnnaBridge 143:86740a56073b 55
AnnaBridge 143:86740a56073b 56 /** \brief No Operation
AnnaBridge 143:86740a56073b 57
AnnaBridge 143:86740a56073b 58 No Operation does nothing. This instruction can be used for code alignment purposes.
AnnaBridge 143:86740a56073b 59 */
AnnaBridge 143:86740a56073b 60 #define __NOP __nop
AnnaBridge 143:86740a56073b 61
AnnaBridge 143:86740a56073b 62
AnnaBridge 143:86740a56073b 63 /** \brief Wait For Interrupt
AnnaBridge 143:86740a56073b 64
AnnaBridge 143:86740a56073b 65 Wait For Interrupt is a hint instruction that suspends execution
AnnaBridge 143:86740a56073b 66 until one of a number of events occurs.
AnnaBridge 143:86740a56073b 67 */
AnnaBridge 143:86740a56073b 68 #define __WFI __wfi
AnnaBridge 143:86740a56073b 69
AnnaBridge 143:86740a56073b 70
AnnaBridge 143:86740a56073b 71 /** \brief Wait For Event
AnnaBridge 143:86740a56073b 72
AnnaBridge 143:86740a56073b 73 Wait For Event is a hint instruction that permits the processor to enter
AnnaBridge 143:86740a56073b 74 a low-power state until one of a number of events occurs.
AnnaBridge 143:86740a56073b 75 */
AnnaBridge 143:86740a56073b 76 #define __WFE __wfe
AnnaBridge 143:86740a56073b 77
AnnaBridge 143:86740a56073b 78
AnnaBridge 143:86740a56073b 79 /** \brief Send Event
AnnaBridge 143:86740a56073b 80
AnnaBridge 143:86740a56073b 81 Send Event is a hint instruction. It causes an event to be signaled to the CPU.
AnnaBridge 143:86740a56073b 82 */
AnnaBridge 143:86740a56073b 83 #define __SEV __sev
AnnaBridge 143:86740a56073b 84
AnnaBridge 143:86740a56073b 85
AnnaBridge 143:86740a56073b 86 /** \brief Instruction Synchronization Barrier
AnnaBridge 143:86740a56073b 87
AnnaBridge 143:86740a56073b 88 Instruction Synchronization Barrier flushes the pipeline in the processor,
AnnaBridge 143:86740a56073b 89 so that all instructions following the ISB are fetched from cache or
AnnaBridge 143:86740a56073b 90 memory, after the instruction has been completed.
AnnaBridge 143:86740a56073b 91 */
AnnaBridge 143:86740a56073b 92 #define __ISB() do {\
AnnaBridge 143:86740a56073b 93 __schedule_barrier();\
AnnaBridge 143:86740a56073b 94 __isb(0xF);\
AnnaBridge 143:86740a56073b 95 __schedule_barrier();\
AnnaBridge 143:86740a56073b 96 } while (0)
AnnaBridge 143:86740a56073b 97
AnnaBridge 143:86740a56073b 98 /** \brief Data Synchronization Barrier
AnnaBridge 143:86740a56073b 99
AnnaBridge 143:86740a56073b 100 This function acts as a special kind of Data Memory Barrier.
AnnaBridge 143:86740a56073b 101 It completes when all explicit memory accesses before this instruction complete.
AnnaBridge 143:86740a56073b 102 */
AnnaBridge 143:86740a56073b 103 #define __DSB() do {\
AnnaBridge 143:86740a56073b 104 __schedule_barrier();\
AnnaBridge 143:86740a56073b 105 __dsb(0xF);\
AnnaBridge 143:86740a56073b 106 __schedule_barrier();\
AnnaBridge 143:86740a56073b 107 } while (0)
AnnaBridge 143:86740a56073b 108
AnnaBridge 143:86740a56073b 109 /** \brief Data Memory Barrier
AnnaBridge 143:86740a56073b 110
AnnaBridge 143:86740a56073b 111 This function ensures the apparent order of the explicit memory operations before
AnnaBridge 143:86740a56073b 112 and after the instruction, without ensuring their completion.
AnnaBridge 143:86740a56073b 113 */
AnnaBridge 143:86740a56073b 114 #define __DMB() do {\
AnnaBridge 143:86740a56073b 115 __schedule_barrier();\
AnnaBridge 143:86740a56073b 116 __dmb(0xF);\
AnnaBridge 143:86740a56073b 117 __schedule_barrier();\
AnnaBridge 143:86740a56073b 118 } while (0)
AnnaBridge 143:86740a56073b 119
AnnaBridge 143:86740a56073b 120 /** \brief Reverse byte order (32 bit)
AnnaBridge 143:86740a56073b 121
AnnaBridge 143:86740a56073b 122 This function reverses the byte order in integer value.
AnnaBridge 143:86740a56073b 123
AnnaBridge 143:86740a56073b 124 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 125 \return Reversed value
AnnaBridge 143:86740a56073b 126 */
AnnaBridge 143:86740a56073b 127 #define __REV __rev
AnnaBridge 143:86740a56073b 128
AnnaBridge 143:86740a56073b 129
AnnaBridge 143:86740a56073b 130 /** \brief Reverse byte order (16 bit)
AnnaBridge 143:86740a56073b 131
AnnaBridge 143:86740a56073b 132 This function reverses the byte order in two unsigned short values.
AnnaBridge 143:86740a56073b 133
AnnaBridge 143:86740a56073b 134 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 135 \return Reversed value
AnnaBridge 143:86740a56073b 136 */
AnnaBridge 143:86740a56073b 137 #ifndef __NO_EMBEDDED_ASM
AnnaBridge 143:86740a56073b 138 __attribute__((section(".rev16_text"))) __STATIC_INLINE __ASM uint32_t __REV16(uint32_t value)
AnnaBridge 143:86740a56073b 139 {
AnnaBridge 143:86740a56073b 140 rev16 r0, r0
AnnaBridge 143:86740a56073b 141 bx lr
AnnaBridge 143:86740a56073b 142 }
AnnaBridge 143:86740a56073b 143 #endif
AnnaBridge 143:86740a56073b 144
AnnaBridge 143:86740a56073b 145 /** \brief Reverse byte order in signed short value
AnnaBridge 143:86740a56073b 146
AnnaBridge 143:86740a56073b 147 This function reverses the byte order in a signed short value with sign extension to integer.
AnnaBridge 143:86740a56073b 148
AnnaBridge 143:86740a56073b 149 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 150 \return Reversed value
AnnaBridge 143:86740a56073b 151 */
AnnaBridge 143:86740a56073b 152 #ifndef __NO_EMBEDDED_ASM
AnnaBridge 143:86740a56073b 153 __attribute__((section(".revsh_text"))) __STATIC_INLINE __ASM int32_t __REVSH(int32_t value)
AnnaBridge 143:86740a56073b 154 {
AnnaBridge 143:86740a56073b 155 revsh r0, r0
AnnaBridge 143:86740a56073b 156 bx lr
AnnaBridge 143:86740a56073b 157 }
AnnaBridge 143:86740a56073b 158 #endif
AnnaBridge 143:86740a56073b 159
AnnaBridge 143:86740a56073b 160
AnnaBridge 143:86740a56073b 161 /** \brief Rotate Right in unsigned value (32 bit)
AnnaBridge 143:86740a56073b 162
AnnaBridge 143:86740a56073b 163 This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits.
AnnaBridge 143:86740a56073b 164
AnnaBridge 143:86740a56073b 165 \param [in] value Value to rotate
AnnaBridge 143:86740a56073b 166 \param [in] value Number of Bits to rotate
AnnaBridge 143:86740a56073b 167 \return Rotated value
AnnaBridge 143:86740a56073b 168 */
AnnaBridge 143:86740a56073b 169 #define __ROR __ror
AnnaBridge 143:86740a56073b 170
AnnaBridge 143:86740a56073b 171
AnnaBridge 143:86740a56073b 172 /** \brief Breakpoint
AnnaBridge 143:86740a56073b 173
AnnaBridge 143:86740a56073b 174 This function causes the processor to enter Debug state.
AnnaBridge 143:86740a56073b 175 Debug tools can use this to investigate system state when the instruction at a particular address is reached.
AnnaBridge 143:86740a56073b 176
AnnaBridge 143:86740a56073b 177 \param [in] value is ignored by the processor.
AnnaBridge 143:86740a56073b 178 If required, a debugger can use it to store additional information about the breakpoint.
AnnaBridge 143:86740a56073b 179 */
AnnaBridge 143:86740a56073b 180 #define __BKPT(value) __breakpoint(value)
AnnaBridge 143:86740a56073b 181
AnnaBridge 143:86740a56073b 182
AnnaBridge 143:86740a56073b 183 /** \brief Reverse bit order of value
AnnaBridge 143:86740a56073b 184
AnnaBridge 143:86740a56073b 185 This function reverses the bit order of the given value.
AnnaBridge 143:86740a56073b 186
AnnaBridge 143:86740a56073b 187 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 188 \return Reversed value
AnnaBridge 143:86740a56073b 189 */
AnnaBridge 143:86740a56073b 190 #if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
AnnaBridge 143:86740a56073b 191 #define __RBIT __rbit
AnnaBridge 143:86740a56073b 192 #else
AnnaBridge 143:86740a56073b 193 __attribute__((always_inline)) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
AnnaBridge 143:86740a56073b 194 {
AnnaBridge 143:86740a56073b 195 uint32_t result;
AnnaBridge 143:86740a56073b 196 int32_t s = 4 /*sizeof(v)*/ * 8 - 1; // extra shift needed at end
AnnaBridge 143:86740a56073b 197
AnnaBridge 143:86740a56073b 198 result = value; // r will be reversed bits of v; first get LSB of v
AnnaBridge 143:86740a56073b 199 for (value >>= 1; value; value >>= 1)
AnnaBridge 143:86740a56073b 200 {
AnnaBridge 143:86740a56073b 201 result <<= 1;
AnnaBridge 143:86740a56073b 202 result |= value & 1;
AnnaBridge 143:86740a56073b 203 s--;
AnnaBridge 143:86740a56073b 204 }
AnnaBridge 143:86740a56073b 205 result <<= s; // shift when v's highest bits are zero
AnnaBridge 143:86740a56073b 206 return(result);
AnnaBridge 143:86740a56073b 207 }
AnnaBridge 143:86740a56073b 208 #endif
AnnaBridge 143:86740a56073b 209
AnnaBridge 143:86740a56073b 210
AnnaBridge 143:86740a56073b 211 /** \brief Count leading zeros
AnnaBridge 143:86740a56073b 212
AnnaBridge 143:86740a56073b 213 This function counts the number of leading zeros of a data value.
AnnaBridge 143:86740a56073b 214
AnnaBridge 143:86740a56073b 215 \param [in] value Value to count the leading zeros
AnnaBridge 143:86740a56073b 216 \return number of leading zeros in value
AnnaBridge 143:86740a56073b 217 */
AnnaBridge 143:86740a56073b 218 #define __CLZ __clz
AnnaBridge 143:86740a56073b 219
AnnaBridge 143:86740a56073b 220
AnnaBridge 143:86740a56073b 221 #if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
AnnaBridge 143:86740a56073b 222
AnnaBridge 143:86740a56073b 223 /** \brief LDR Exclusive (8 bit)
AnnaBridge 143:86740a56073b 224
AnnaBridge 143:86740a56073b 225 This function executes a exclusive LDR instruction for 8 bit value.
AnnaBridge 143:86740a56073b 226
AnnaBridge 143:86740a56073b 227 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 228 \return value of type uint8_t at (*ptr)
AnnaBridge 143:86740a56073b 229 */
AnnaBridge 143:86740a56073b 230 #define __LDREXB(ptr) ((uint8_t ) __ldrex(ptr))
AnnaBridge 143:86740a56073b 231
AnnaBridge 143:86740a56073b 232
AnnaBridge 143:86740a56073b 233 /** \brief LDR Exclusive (16 bit)
AnnaBridge 143:86740a56073b 234
AnnaBridge 143:86740a56073b 235 This function executes a exclusive LDR instruction for 16 bit values.
AnnaBridge 143:86740a56073b 236
AnnaBridge 143:86740a56073b 237 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 238 \return value of type uint16_t at (*ptr)
AnnaBridge 143:86740a56073b 239 */
AnnaBridge 143:86740a56073b 240 #define __LDREXH(ptr) ((uint16_t) __ldrex(ptr))
AnnaBridge 143:86740a56073b 241
AnnaBridge 143:86740a56073b 242
AnnaBridge 143:86740a56073b 243 /** \brief LDR Exclusive (32 bit)
AnnaBridge 143:86740a56073b 244
AnnaBridge 143:86740a56073b 245 This function executes a exclusive LDR instruction for 32 bit values.
AnnaBridge 143:86740a56073b 246
AnnaBridge 143:86740a56073b 247 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 248 \return value of type uint32_t at (*ptr)
AnnaBridge 143:86740a56073b 249 */
AnnaBridge 143:86740a56073b 250 #define __LDREXW(ptr) ((uint32_t ) __ldrex(ptr))
AnnaBridge 143:86740a56073b 251
AnnaBridge 143:86740a56073b 252
AnnaBridge 143:86740a56073b 253 /** \brief STR Exclusive (8 bit)
AnnaBridge 143:86740a56073b 254
AnnaBridge 143:86740a56073b 255 This function executes a exclusive STR instruction for 8 bit values.
AnnaBridge 143:86740a56073b 256
AnnaBridge 143:86740a56073b 257 \param [in] value Value to store
AnnaBridge 143:86740a56073b 258 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 259 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 260 \return 1 Function failed
AnnaBridge 143:86740a56073b 261 */
AnnaBridge 143:86740a56073b 262 #define __STREXB(value, ptr) __strex(value, ptr)
AnnaBridge 143:86740a56073b 263
AnnaBridge 143:86740a56073b 264
AnnaBridge 143:86740a56073b 265 /** \brief STR Exclusive (16 bit)
AnnaBridge 143:86740a56073b 266
AnnaBridge 143:86740a56073b 267 This function executes a exclusive STR instruction for 16 bit values.
AnnaBridge 143:86740a56073b 268
AnnaBridge 143:86740a56073b 269 \param [in] value Value to store
AnnaBridge 143:86740a56073b 270 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 271 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 272 \return 1 Function failed
AnnaBridge 143:86740a56073b 273 */
AnnaBridge 143:86740a56073b 274 #define __STREXH(value, ptr) __strex(value, ptr)
AnnaBridge 143:86740a56073b 275
AnnaBridge 143:86740a56073b 276
AnnaBridge 143:86740a56073b 277 /** \brief STR Exclusive (32 bit)
AnnaBridge 143:86740a56073b 278
AnnaBridge 143:86740a56073b 279 This function executes a exclusive STR instruction for 32 bit values.
AnnaBridge 143:86740a56073b 280
AnnaBridge 143:86740a56073b 281 \param [in] value Value to store
AnnaBridge 143:86740a56073b 282 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 283 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 284 \return 1 Function failed
AnnaBridge 143:86740a56073b 285 */
AnnaBridge 143:86740a56073b 286 #define __STREXW(value, ptr) __strex(value, ptr)
AnnaBridge 143:86740a56073b 287
AnnaBridge 143:86740a56073b 288
AnnaBridge 143:86740a56073b 289 /** \brief Remove the exclusive lock
AnnaBridge 143:86740a56073b 290
AnnaBridge 143:86740a56073b 291 This function removes the exclusive lock which is created by LDREX.
AnnaBridge 143:86740a56073b 292
AnnaBridge 143:86740a56073b 293 */
AnnaBridge 143:86740a56073b 294 #define __CLREX __clrex
AnnaBridge 143:86740a56073b 295
AnnaBridge 143:86740a56073b 296
AnnaBridge 143:86740a56073b 297 /** \brief Signed Saturate
AnnaBridge 143:86740a56073b 298
AnnaBridge 143:86740a56073b 299 This function saturates a signed value.
AnnaBridge 143:86740a56073b 300
AnnaBridge 143:86740a56073b 301 \param [in] value Value to be saturated
AnnaBridge 143:86740a56073b 302 \param [in] sat Bit position to saturate to (1..32)
AnnaBridge 143:86740a56073b 303 \return Saturated value
AnnaBridge 143:86740a56073b 304 */
AnnaBridge 143:86740a56073b 305 #define __SSAT __ssat
AnnaBridge 143:86740a56073b 306
AnnaBridge 143:86740a56073b 307
AnnaBridge 143:86740a56073b 308 /** \brief Unsigned Saturate
AnnaBridge 143:86740a56073b 309
AnnaBridge 143:86740a56073b 310 This function saturates an unsigned value.
AnnaBridge 143:86740a56073b 311
AnnaBridge 143:86740a56073b 312 \param [in] value Value to be saturated
AnnaBridge 143:86740a56073b 313 \param [in] sat Bit position to saturate to (0..31)
AnnaBridge 143:86740a56073b 314 \return Saturated value
AnnaBridge 143:86740a56073b 315 */
AnnaBridge 143:86740a56073b 316 #define __USAT __usat
AnnaBridge 143:86740a56073b 317
AnnaBridge 143:86740a56073b 318
AnnaBridge 143:86740a56073b 319 /** \brief Rotate Right with Extend (32 bit)
AnnaBridge 143:86740a56073b 320
AnnaBridge 143:86740a56073b 321 This function moves each bit of a bitstring right by one bit.
AnnaBridge 143:86740a56073b 322 The carry input is shifted in at the left end of the bitstring.
AnnaBridge 143:86740a56073b 323
AnnaBridge 143:86740a56073b 324 \param [in] value Value to rotate
AnnaBridge 143:86740a56073b 325 \return Rotated value
AnnaBridge 143:86740a56073b 326 */
AnnaBridge 143:86740a56073b 327 #ifndef __NO_EMBEDDED_ASM
AnnaBridge 143:86740a56073b 328 __attribute__((section(".rrx_text"))) __STATIC_INLINE __ASM uint32_t __RRX(uint32_t value)
AnnaBridge 143:86740a56073b 329 {
AnnaBridge 143:86740a56073b 330 rrx r0, r0
AnnaBridge 143:86740a56073b 331 bx lr
AnnaBridge 143:86740a56073b 332 }
AnnaBridge 143:86740a56073b 333 #endif
AnnaBridge 143:86740a56073b 334
AnnaBridge 143:86740a56073b 335
AnnaBridge 143:86740a56073b 336 /** \brief LDRT Unprivileged (8 bit)
AnnaBridge 143:86740a56073b 337
AnnaBridge 143:86740a56073b 338 This function executes a Unprivileged LDRT instruction for 8 bit value.
AnnaBridge 143:86740a56073b 339
AnnaBridge 143:86740a56073b 340 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 341 \return value of type uint8_t at (*ptr)
AnnaBridge 143:86740a56073b 342 */
AnnaBridge 143:86740a56073b 343 #define __LDRBT(ptr) ((uint8_t ) __ldrt(ptr))
AnnaBridge 143:86740a56073b 344
AnnaBridge 143:86740a56073b 345
AnnaBridge 143:86740a56073b 346 /** \brief LDRT Unprivileged (16 bit)
AnnaBridge 143:86740a56073b 347
AnnaBridge 143:86740a56073b 348 This function executes a Unprivileged LDRT instruction for 16 bit values.
AnnaBridge 143:86740a56073b 349
AnnaBridge 143:86740a56073b 350 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 351 \return value of type uint16_t at (*ptr)
AnnaBridge 143:86740a56073b 352 */
AnnaBridge 143:86740a56073b 353 #define __LDRHT(ptr) ((uint16_t) __ldrt(ptr))
AnnaBridge 143:86740a56073b 354
AnnaBridge 143:86740a56073b 355
AnnaBridge 143:86740a56073b 356 /** \brief LDRT Unprivileged (32 bit)
AnnaBridge 143:86740a56073b 357
AnnaBridge 143:86740a56073b 358 This function executes a Unprivileged LDRT instruction for 32 bit values.
AnnaBridge 143:86740a56073b 359
AnnaBridge 143:86740a56073b 360 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 361 \return value of type uint32_t at (*ptr)
AnnaBridge 143:86740a56073b 362 */
AnnaBridge 143:86740a56073b 363 #define __LDRT(ptr) ((uint32_t ) __ldrt(ptr))
AnnaBridge 143:86740a56073b 364
AnnaBridge 143:86740a56073b 365
AnnaBridge 143:86740a56073b 366 /** \brief STRT Unprivileged (8 bit)
AnnaBridge 143:86740a56073b 367
AnnaBridge 143:86740a56073b 368 This function executes a Unprivileged STRT instruction for 8 bit values.
AnnaBridge 143:86740a56073b 369
AnnaBridge 143:86740a56073b 370 \param [in] value Value to store
AnnaBridge 143:86740a56073b 371 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 372 */
AnnaBridge 143:86740a56073b 373 #define __STRBT(value, ptr) __strt(value, ptr)
AnnaBridge 143:86740a56073b 374
AnnaBridge 143:86740a56073b 375
AnnaBridge 143:86740a56073b 376 /** \brief STRT Unprivileged (16 bit)
AnnaBridge 143:86740a56073b 377
AnnaBridge 143:86740a56073b 378 This function executes a Unprivileged STRT instruction for 16 bit values.
AnnaBridge 143:86740a56073b 379
AnnaBridge 143:86740a56073b 380 \param [in] value Value to store
AnnaBridge 143:86740a56073b 381 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 382 */
AnnaBridge 143:86740a56073b 383 #define __STRHT(value, ptr) __strt(value, ptr)
AnnaBridge 143:86740a56073b 384
AnnaBridge 143:86740a56073b 385
AnnaBridge 143:86740a56073b 386 /** \brief STRT Unprivileged (32 bit)
AnnaBridge 143:86740a56073b 387
AnnaBridge 143:86740a56073b 388 This function executes a Unprivileged STRT instruction for 32 bit values.
AnnaBridge 143:86740a56073b 389
AnnaBridge 143:86740a56073b 390 \param [in] value Value to store
AnnaBridge 143:86740a56073b 391 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 392 */
AnnaBridge 143:86740a56073b 393 #define __STRT(value, ptr) __strt(value, ptr)
AnnaBridge 143:86740a56073b 394
AnnaBridge 143:86740a56073b 395 #endif /* (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300) */
AnnaBridge 143:86740a56073b 396
AnnaBridge 143:86740a56073b 397
AnnaBridge 143:86740a56073b 398 #elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
AnnaBridge 143:86740a56073b 399 /* GNU gcc specific functions */
AnnaBridge 143:86740a56073b 400
AnnaBridge 143:86740a56073b 401 /* Define macros for porting to both thumb1 and thumb2.
AnnaBridge 143:86740a56073b 402 * For thumb1, use low register (r0-r7), specified by constrant "l"
AnnaBridge 143:86740a56073b 403 * Otherwise, use general registers, specified by constrant "r" */
AnnaBridge 143:86740a56073b 404 #if defined (__thumb__) && !defined (__thumb2__)
AnnaBridge 143:86740a56073b 405 #define __CMSIS_GCC_OUT_REG(r) "=l" (r)
AnnaBridge 143:86740a56073b 406 #define __CMSIS_GCC_USE_REG(r) "l" (r)
AnnaBridge 143:86740a56073b 407 #else
AnnaBridge 143:86740a56073b 408 #define __CMSIS_GCC_OUT_REG(r) "=r" (r)
AnnaBridge 143:86740a56073b 409 #define __CMSIS_GCC_USE_REG(r) "r" (r)
AnnaBridge 143:86740a56073b 410 #endif
AnnaBridge 143:86740a56073b 411
AnnaBridge 143:86740a56073b 412 /** \brief No Operation
AnnaBridge 143:86740a56073b 413
AnnaBridge 143:86740a56073b 414 No Operation does nothing. This instruction can be used for code alignment purposes.
AnnaBridge 143:86740a56073b 415 */
AnnaBridge 143:86740a56073b 416 __attribute__((always_inline)) __STATIC_INLINE void __NOP(void)
AnnaBridge 143:86740a56073b 417 {
AnnaBridge 143:86740a56073b 418 __ASM volatile ("nop");
AnnaBridge 143:86740a56073b 419 }
AnnaBridge 143:86740a56073b 420
AnnaBridge 143:86740a56073b 421
AnnaBridge 143:86740a56073b 422 /** \brief Wait For Interrupt
AnnaBridge 143:86740a56073b 423
AnnaBridge 143:86740a56073b 424 Wait For Interrupt is a hint instruction that suspends execution
AnnaBridge 143:86740a56073b 425 until one of a number of events occurs.
AnnaBridge 143:86740a56073b 426 */
AnnaBridge 143:86740a56073b 427 __attribute__((always_inline)) __STATIC_INLINE void __WFI(void)
AnnaBridge 143:86740a56073b 428 {
AnnaBridge 143:86740a56073b 429 __ASM volatile ("wfi");
AnnaBridge 143:86740a56073b 430 }
AnnaBridge 143:86740a56073b 431
AnnaBridge 143:86740a56073b 432
AnnaBridge 143:86740a56073b 433 /** \brief Wait For Event
AnnaBridge 143:86740a56073b 434
AnnaBridge 143:86740a56073b 435 Wait For Event is a hint instruction that permits the processor to enter
AnnaBridge 143:86740a56073b 436 a low-power state until one of a number of events occurs.
AnnaBridge 143:86740a56073b 437 */
AnnaBridge 143:86740a56073b 438 __attribute__((always_inline)) __STATIC_INLINE void __WFE(void)
AnnaBridge 143:86740a56073b 439 {
AnnaBridge 143:86740a56073b 440 __ASM volatile ("wfe");
AnnaBridge 143:86740a56073b 441 }
AnnaBridge 143:86740a56073b 442
AnnaBridge 143:86740a56073b 443
AnnaBridge 143:86740a56073b 444 /** \brief Send Event
AnnaBridge 143:86740a56073b 445
AnnaBridge 143:86740a56073b 446 Send Event is a hint instruction. It causes an event to be signaled to the CPU.
AnnaBridge 143:86740a56073b 447 */
AnnaBridge 143:86740a56073b 448 __attribute__((always_inline)) __STATIC_INLINE void __SEV(void)
AnnaBridge 143:86740a56073b 449 {
AnnaBridge 143:86740a56073b 450 __ASM volatile ("sev");
AnnaBridge 143:86740a56073b 451 }
AnnaBridge 143:86740a56073b 452
AnnaBridge 143:86740a56073b 453
AnnaBridge 143:86740a56073b 454 /** \brief Instruction Synchronization Barrier
AnnaBridge 143:86740a56073b 455
AnnaBridge 143:86740a56073b 456 Instruction Synchronization Barrier flushes the pipeline in the processor,
AnnaBridge 143:86740a56073b 457 so that all instructions following the ISB are fetched from cache or
AnnaBridge 143:86740a56073b 458 memory, after the instruction has been completed.
AnnaBridge 143:86740a56073b 459 */
AnnaBridge 143:86740a56073b 460 __attribute__((always_inline)) __STATIC_INLINE void __ISB(void)
AnnaBridge 143:86740a56073b 461 {
AnnaBridge 143:86740a56073b 462 __ASM volatile ("isb 0xF":::"memory");
AnnaBridge 143:86740a56073b 463 }
AnnaBridge 143:86740a56073b 464
AnnaBridge 143:86740a56073b 465
AnnaBridge 143:86740a56073b 466 /** \brief Data Synchronization Barrier
AnnaBridge 143:86740a56073b 467
AnnaBridge 143:86740a56073b 468 This function acts as a special kind of Data Memory Barrier.
AnnaBridge 143:86740a56073b 469 It completes when all explicit memory accesses before this instruction complete.
AnnaBridge 143:86740a56073b 470 */
AnnaBridge 143:86740a56073b 471 __attribute__((always_inline)) __STATIC_INLINE void __DSB(void)
AnnaBridge 143:86740a56073b 472 {
AnnaBridge 143:86740a56073b 473 __ASM volatile ("dsb 0xF":::"memory");
AnnaBridge 143:86740a56073b 474 }
AnnaBridge 143:86740a56073b 475
AnnaBridge 143:86740a56073b 476
AnnaBridge 143:86740a56073b 477 /** \brief Data Memory Barrier
AnnaBridge 143:86740a56073b 478
AnnaBridge 143:86740a56073b 479 This function ensures the apparent order of the explicit memory operations before
AnnaBridge 143:86740a56073b 480 and after the instruction, without ensuring their completion.
AnnaBridge 143:86740a56073b 481 */
AnnaBridge 143:86740a56073b 482 __attribute__((always_inline)) __STATIC_INLINE void __DMB(void)
AnnaBridge 143:86740a56073b 483 {
AnnaBridge 143:86740a56073b 484 __ASM volatile ("dmb 0xF":::"memory");
AnnaBridge 143:86740a56073b 485 }
AnnaBridge 143:86740a56073b 486
AnnaBridge 143:86740a56073b 487
AnnaBridge 143:86740a56073b 488 /** \brief Reverse byte order (32 bit)
AnnaBridge 143:86740a56073b 489
AnnaBridge 143:86740a56073b 490 This function reverses the byte order in integer value.
AnnaBridge 143:86740a56073b 491
AnnaBridge 143:86740a56073b 492 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 493 \return Reversed value
AnnaBridge 143:86740a56073b 494 */
AnnaBridge 143:86740a56073b 495 __attribute__((always_inline)) __STATIC_INLINE uint32_t __REV(uint32_t value)
AnnaBridge 143:86740a56073b 496 {
AnnaBridge 143:86740a56073b 497 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
AnnaBridge 143:86740a56073b 498 return __builtin_bswap32(value);
AnnaBridge 143:86740a56073b 499 #else
AnnaBridge 143:86740a56073b 500 uint32_t result;
AnnaBridge 143:86740a56073b 501
AnnaBridge 143:86740a56073b 502 __ASM volatile ("rev %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
AnnaBridge 143:86740a56073b 503 return(result);
AnnaBridge 143:86740a56073b 504 #endif
AnnaBridge 143:86740a56073b 505 }
AnnaBridge 143:86740a56073b 506
AnnaBridge 143:86740a56073b 507
AnnaBridge 143:86740a56073b 508 /** \brief Reverse byte order (16 bit)
AnnaBridge 143:86740a56073b 509
AnnaBridge 143:86740a56073b 510 This function reverses the byte order in two unsigned short values.
AnnaBridge 143:86740a56073b 511
AnnaBridge 143:86740a56073b 512 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 513 \return Reversed value
AnnaBridge 143:86740a56073b 514 */
AnnaBridge 143:86740a56073b 515 __attribute__((always_inline)) __STATIC_INLINE uint32_t __REV16(uint32_t value)
AnnaBridge 143:86740a56073b 516 {
AnnaBridge 143:86740a56073b 517 uint32_t result;
AnnaBridge 143:86740a56073b 518
AnnaBridge 143:86740a56073b 519 __ASM volatile ("rev16 %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
AnnaBridge 143:86740a56073b 520 return(result);
AnnaBridge 143:86740a56073b 521 }
AnnaBridge 143:86740a56073b 522
AnnaBridge 143:86740a56073b 523
AnnaBridge 143:86740a56073b 524 /** \brief Reverse byte order in signed short value
AnnaBridge 143:86740a56073b 525
AnnaBridge 143:86740a56073b 526 This function reverses the byte order in a signed short value with sign extension to integer.
AnnaBridge 143:86740a56073b 527
AnnaBridge 143:86740a56073b 528 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 529 \return Reversed value
AnnaBridge 143:86740a56073b 530 */
AnnaBridge 143:86740a56073b 531 __attribute__((always_inline)) __STATIC_INLINE int32_t __REVSH(int32_t value)
AnnaBridge 143:86740a56073b 532 {
AnnaBridge 143:86740a56073b 533 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
AnnaBridge 143:86740a56073b 534 return (short)__builtin_bswap16(value);
AnnaBridge 143:86740a56073b 535 #else
AnnaBridge 143:86740a56073b 536 uint32_t result;
AnnaBridge 143:86740a56073b 537
AnnaBridge 143:86740a56073b 538 __ASM volatile ("revsh %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
AnnaBridge 143:86740a56073b 539 return(result);
AnnaBridge 143:86740a56073b 540 #endif
AnnaBridge 143:86740a56073b 541 }
AnnaBridge 143:86740a56073b 542
AnnaBridge 143:86740a56073b 543
AnnaBridge 143:86740a56073b 544 /** \brief Rotate Right in unsigned value (32 bit)
AnnaBridge 143:86740a56073b 545
AnnaBridge 143:86740a56073b 546 This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits.
AnnaBridge 143:86740a56073b 547
AnnaBridge 143:86740a56073b 548 \param [in] value Value to rotate
AnnaBridge 143:86740a56073b 549 \param [in] value Number of Bits to rotate
AnnaBridge 143:86740a56073b 550 \return Rotated value
AnnaBridge 143:86740a56073b 551 */
AnnaBridge 143:86740a56073b 552 __attribute__((always_inline)) __STATIC_INLINE uint32_t __ROR(uint32_t op1, uint32_t op2)
AnnaBridge 143:86740a56073b 553 {
AnnaBridge 143:86740a56073b 554 return (op1 >> op2) | (op1 << (32 - op2));
AnnaBridge 143:86740a56073b 555 }
AnnaBridge 143:86740a56073b 556
AnnaBridge 143:86740a56073b 557
AnnaBridge 143:86740a56073b 558 /** \brief Breakpoint
AnnaBridge 143:86740a56073b 559
AnnaBridge 143:86740a56073b 560 This function causes the processor to enter Debug state.
AnnaBridge 143:86740a56073b 561 Debug tools can use this to investigate system state when the instruction at a particular address is reached.
AnnaBridge 143:86740a56073b 562
AnnaBridge 143:86740a56073b 563 \param [in] value is ignored by the processor.
AnnaBridge 143:86740a56073b 564 If required, a debugger can use it to store additional information about the breakpoint.
AnnaBridge 143:86740a56073b 565 */
AnnaBridge 143:86740a56073b 566 #define __BKPT(value) __ASM volatile ("bkpt "#value)
AnnaBridge 143:86740a56073b 567
AnnaBridge 143:86740a56073b 568
AnnaBridge 143:86740a56073b 569 /** \brief Reverse bit order of value
AnnaBridge 143:86740a56073b 570
AnnaBridge 143:86740a56073b 571 This function reverses the bit order of the given value.
AnnaBridge 143:86740a56073b 572
AnnaBridge 143:86740a56073b 573 \param [in] value Value to reverse
AnnaBridge 143:86740a56073b 574 \return Reversed value
AnnaBridge 143:86740a56073b 575 */
AnnaBridge 143:86740a56073b 576 __attribute__((always_inline)) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
AnnaBridge 143:86740a56073b 577 {
AnnaBridge 143:86740a56073b 578 uint32_t result;
AnnaBridge 143:86740a56073b 579
AnnaBridge 143:86740a56073b 580 #if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
AnnaBridge 143:86740a56073b 581 __ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
AnnaBridge 143:86740a56073b 582 #else
AnnaBridge 143:86740a56073b 583 int32_t s = 4 /*sizeof(v)*/ * 8 - 1; // extra shift needed at end
AnnaBridge 143:86740a56073b 584
AnnaBridge 143:86740a56073b 585 result = value; // r will be reversed bits of v; first get LSB of v
AnnaBridge 143:86740a56073b 586 for (value >>= 1; value; value >>= 1)
AnnaBridge 143:86740a56073b 587 {
AnnaBridge 143:86740a56073b 588 result <<= 1;
AnnaBridge 143:86740a56073b 589 result |= value & 1;
AnnaBridge 143:86740a56073b 590 s--;
AnnaBridge 143:86740a56073b 591 }
AnnaBridge 143:86740a56073b 592 result <<= s; // shift when v's highest bits are zero
AnnaBridge 143:86740a56073b 593 #endif
AnnaBridge 143:86740a56073b 594 return(result);
AnnaBridge 143:86740a56073b 595 }
AnnaBridge 143:86740a56073b 596
AnnaBridge 143:86740a56073b 597
AnnaBridge 143:86740a56073b 598 /** \brief Count leading zeros
AnnaBridge 143:86740a56073b 599
AnnaBridge 143:86740a56073b 600 This function counts the number of leading zeros of a data value.
AnnaBridge 143:86740a56073b 601
AnnaBridge 143:86740a56073b 602 \param [in] value Value to count the leading zeros
AnnaBridge 143:86740a56073b 603 \return number of leading zeros in value
AnnaBridge 143:86740a56073b 604 */
AnnaBridge 143:86740a56073b 605 #define __CLZ __builtin_clz
AnnaBridge 143:86740a56073b 606
AnnaBridge 143:86740a56073b 607
AnnaBridge 143:86740a56073b 608 #if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
AnnaBridge 143:86740a56073b 609
AnnaBridge 143:86740a56073b 610 /** \brief LDR Exclusive (8 bit)
AnnaBridge 143:86740a56073b 611
AnnaBridge 143:86740a56073b 612 This function executes a exclusive LDR instruction for 8 bit value.
AnnaBridge 143:86740a56073b 613
AnnaBridge 143:86740a56073b 614 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 615 \return value of type uint8_t at (*ptr)
AnnaBridge 143:86740a56073b 616 */
AnnaBridge 143:86740a56073b 617 __attribute__((always_inline)) __STATIC_INLINE uint8_t __LDREXB(volatile uint8_t *addr)
AnnaBridge 143:86740a56073b 618 {
AnnaBridge 143:86740a56073b 619 uint32_t result;
AnnaBridge 143:86740a56073b 620
AnnaBridge 143:86740a56073b 621 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
AnnaBridge 143:86740a56073b 622 __ASM volatile ("ldrexb %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 623 #else
AnnaBridge 143:86740a56073b 624 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
AnnaBridge 143:86740a56073b 625 accepted by assembler. So has to use following less efficient pattern.
AnnaBridge 143:86740a56073b 626 */
AnnaBridge 143:86740a56073b 627 __ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
AnnaBridge 143:86740a56073b 628 #endif
AnnaBridge 143:86740a56073b 629 return ((uint8_t) result); /* Add explicit type cast here */
AnnaBridge 143:86740a56073b 630 }
AnnaBridge 143:86740a56073b 631
AnnaBridge 143:86740a56073b 632
AnnaBridge 143:86740a56073b 633 /** \brief LDR Exclusive (16 bit)
AnnaBridge 143:86740a56073b 634
AnnaBridge 143:86740a56073b 635 This function executes a exclusive LDR instruction for 16 bit values.
AnnaBridge 143:86740a56073b 636
AnnaBridge 143:86740a56073b 637 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 638 \return value of type uint16_t at (*ptr)
AnnaBridge 143:86740a56073b 639 */
AnnaBridge 143:86740a56073b 640 __attribute__((always_inline)) __STATIC_INLINE uint16_t __LDREXH(volatile uint16_t *addr)
AnnaBridge 143:86740a56073b 641 {
AnnaBridge 143:86740a56073b 642 uint32_t result;
AnnaBridge 143:86740a56073b 643
AnnaBridge 143:86740a56073b 644 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
AnnaBridge 143:86740a56073b 645 __ASM volatile ("ldrexh %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 646 #else
AnnaBridge 143:86740a56073b 647 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
AnnaBridge 143:86740a56073b 648 accepted by assembler. So has to use following less efficient pattern.
AnnaBridge 143:86740a56073b 649 */
AnnaBridge 143:86740a56073b 650 __ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
AnnaBridge 143:86740a56073b 651 #endif
AnnaBridge 143:86740a56073b 652 return ((uint16_t) result); /* Add explicit type cast here */
AnnaBridge 143:86740a56073b 653 }
AnnaBridge 143:86740a56073b 654
AnnaBridge 143:86740a56073b 655
AnnaBridge 143:86740a56073b 656 /** \brief LDR Exclusive (32 bit)
AnnaBridge 143:86740a56073b 657
AnnaBridge 143:86740a56073b 658 This function executes a exclusive LDR instruction for 32 bit values.
AnnaBridge 143:86740a56073b 659
AnnaBridge 143:86740a56073b 660 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 661 \return value of type uint32_t at (*ptr)
AnnaBridge 143:86740a56073b 662 */
AnnaBridge 143:86740a56073b 663 __attribute__((always_inline)) __STATIC_INLINE uint32_t __LDREXW(volatile uint32_t *addr)
AnnaBridge 143:86740a56073b 664 {
AnnaBridge 143:86740a56073b 665 uint32_t result;
AnnaBridge 143:86740a56073b 666
AnnaBridge 143:86740a56073b 667 __ASM volatile ("ldrex %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 668 return(result);
AnnaBridge 143:86740a56073b 669 }
AnnaBridge 143:86740a56073b 670
AnnaBridge 143:86740a56073b 671
AnnaBridge 143:86740a56073b 672 /** \brief STR Exclusive (8 bit)
AnnaBridge 143:86740a56073b 673
AnnaBridge 143:86740a56073b 674 This function executes a exclusive STR instruction for 8 bit values.
AnnaBridge 143:86740a56073b 675
AnnaBridge 143:86740a56073b 676 \param [in] value Value to store
AnnaBridge 143:86740a56073b 677 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 678 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 679 \return 1 Function failed
AnnaBridge 143:86740a56073b 680 */
AnnaBridge 143:86740a56073b 681 __attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr)
AnnaBridge 143:86740a56073b 682 {
AnnaBridge 143:86740a56073b 683 uint32_t result;
AnnaBridge 143:86740a56073b 684
AnnaBridge 143:86740a56073b 685 __ASM volatile ("strexb %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" ((uint32_t)value) );
AnnaBridge 143:86740a56073b 686 return(result);
AnnaBridge 143:86740a56073b 687 }
AnnaBridge 143:86740a56073b 688
AnnaBridge 143:86740a56073b 689
AnnaBridge 143:86740a56073b 690 /** \brief STR Exclusive (16 bit)
AnnaBridge 143:86740a56073b 691
AnnaBridge 143:86740a56073b 692 This function executes a exclusive STR instruction for 16 bit values.
AnnaBridge 143:86740a56073b 693
AnnaBridge 143:86740a56073b 694 \param [in] value Value to store
AnnaBridge 143:86740a56073b 695 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 696 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 697 \return 1 Function failed
AnnaBridge 143:86740a56073b 698 */
AnnaBridge 143:86740a56073b 699 __attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr)
AnnaBridge 143:86740a56073b 700 {
AnnaBridge 143:86740a56073b 701 uint32_t result;
AnnaBridge 143:86740a56073b 702
AnnaBridge 143:86740a56073b 703 __ASM volatile ("strexh %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" ((uint32_t)value) );
AnnaBridge 143:86740a56073b 704 return(result);
AnnaBridge 143:86740a56073b 705 }
AnnaBridge 143:86740a56073b 706
AnnaBridge 143:86740a56073b 707
AnnaBridge 143:86740a56073b 708 /** \brief STR Exclusive (32 bit)
AnnaBridge 143:86740a56073b 709
AnnaBridge 143:86740a56073b 710 This function executes a exclusive STR instruction for 32 bit values.
AnnaBridge 143:86740a56073b 711
AnnaBridge 143:86740a56073b 712 \param [in] value Value to store
AnnaBridge 143:86740a56073b 713 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 714 \return 0 Function succeeded
AnnaBridge 143:86740a56073b 715 \return 1 Function failed
AnnaBridge 143:86740a56073b 716 */
AnnaBridge 143:86740a56073b 717 __attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr)
AnnaBridge 143:86740a56073b 718 {
AnnaBridge 143:86740a56073b 719 uint32_t result;
AnnaBridge 143:86740a56073b 720
AnnaBridge 143:86740a56073b 721 __ASM volatile ("strex %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
AnnaBridge 143:86740a56073b 722 return(result);
AnnaBridge 143:86740a56073b 723 }
AnnaBridge 143:86740a56073b 724
AnnaBridge 143:86740a56073b 725
AnnaBridge 143:86740a56073b 726 /** \brief Remove the exclusive lock
AnnaBridge 143:86740a56073b 727
AnnaBridge 143:86740a56073b 728 This function removes the exclusive lock which is created by LDREX.
AnnaBridge 143:86740a56073b 729
AnnaBridge 143:86740a56073b 730 */
AnnaBridge 143:86740a56073b 731 __attribute__((always_inline)) __STATIC_INLINE void __CLREX(void)
AnnaBridge 143:86740a56073b 732 {
AnnaBridge 143:86740a56073b 733 __ASM volatile ("clrex" ::: "memory");
AnnaBridge 143:86740a56073b 734 }
AnnaBridge 143:86740a56073b 735
AnnaBridge 143:86740a56073b 736
AnnaBridge 143:86740a56073b 737 /** \brief Signed Saturate
AnnaBridge 143:86740a56073b 738
AnnaBridge 143:86740a56073b 739 This function saturates a signed value.
AnnaBridge 143:86740a56073b 740
AnnaBridge 143:86740a56073b 741 \param [in] value Value to be saturated
AnnaBridge 143:86740a56073b 742 \param [in] sat Bit position to saturate to (1..32)
AnnaBridge 143:86740a56073b 743 \return Saturated value
AnnaBridge 143:86740a56073b 744 */
AnnaBridge 143:86740a56073b 745 #define __SSAT(ARG1,ARG2) \
AnnaBridge 143:86740a56073b 746 ({ \
AnnaBridge 143:86740a56073b 747 uint32_t __RES, __ARG1 = (ARG1); \
AnnaBridge 143:86740a56073b 748 __ASM ("ssat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
AnnaBridge 143:86740a56073b 749 __RES; \
AnnaBridge 143:86740a56073b 750 })
AnnaBridge 143:86740a56073b 751
AnnaBridge 143:86740a56073b 752
AnnaBridge 143:86740a56073b 753 /** \brief Unsigned Saturate
AnnaBridge 143:86740a56073b 754
AnnaBridge 143:86740a56073b 755 This function saturates an unsigned value.
AnnaBridge 143:86740a56073b 756
AnnaBridge 143:86740a56073b 757 \param [in] value Value to be saturated
AnnaBridge 143:86740a56073b 758 \param [in] sat Bit position to saturate to (0..31)
AnnaBridge 143:86740a56073b 759 \return Saturated value
AnnaBridge 143:86740a56073b 760 */
AnnaBridge 143:86740a56073b 761 #define __USAT(ARG1,ARG2) \
AnnaBridge 143:86740a56073b 762 ({ \
AnnaBridge 143:86740a56073b 763 uint32_t __RES, __ARG1 = (ARG1); \
AnnaBridge 143:86740a56073b 764 __ASM ("usat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
AnnaBridge 143:86740a56073b 765 __RES; \
AnnaBridge 143:86740a56073b 766 })
AnnaBridge 143:86740a56073b 767
AnnaBridge 143:86740a56073b 768
AnnaBridge 143:86740a56073b 769 /** \brief Rotate Right with Extend (32 bit)
AnnaBridge 143:86740a56073b 770
AnnaBridge 143:86740a56073b 771 This function moves each bit of a bitstring right by one bit.
AnnaBridge 143:86740a56073b 772 The carry input is shifted in at the left end of the bitstring.
AnnaBridge 143:86740a56073b 773
AnnaBridge 143:86740a56073b 774 \param [in] value Value to rotate
AnnaBridge 143:86740a56073b 775 \return Rotated value
AnnaBridge 143:86740a56073b 776 */
AnnaBridge 143:86740a56073b 777 __attribute__((always_inline)) __STATIC_INLINE uint32_t __RRX(uint32_t value)
AnnaBridge 143:86740a56073b 778 {
AnnaBridge 143:86740a56073b 779 uint32_t result;
AnnaBridge 143:86740a56073b 780
AnnaBridge 143:86740a56073b 781 __ASM volatile ("rrx %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
AnnaBridge 143:86740a56073b 782 return(result);
AnnaBridge 143:86740a56073b 783 }
AnnaBridge 143:86740a56073b 784
AnnaBridge 143:86740a56073b 785
AnnaBridge 143:86740a56073b 786 /** \brief LDRT Unprivileged (8 bit)
AnnaBridge 143:86740a56073b 787
AnnaBridge 143:86740a56073b 788 This function executes a Unprivileged LDRT instruction for 8 bit value.
AnnaBridge 143:86740a56073b 789
AnnaBridge 143:86740a56073b 790 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 791 \return value of type uint8_t at (*ptr)
AnnaBridge 143:86740a56073b 792 */
AnnaBridge 143:86740a56073b 793 __attribute__((always_inline)) __STATIC_INLINE uint8_t __LDRBT(volatile uint8_t *addr)
AnnaBridge 143:86740a56073b 794 {
AnnaBridge 143:86740a56073b 795 uint32_t result;
AnnaBridge 143:86740a56073b 796
AnnaBridge 143:86740a56073b 797 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
AnnaBridge 143:86740a56073b 798 __ASM volatile ("ldrbt %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 799 #else
AnnaBridge 143:86740a56073b 800 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
AnnaBridge 143:86740a56073b 801 accepted by assembler. So has to use following less efficient pattern.
AnnaBridge 143:86740a56073b 802 */
AnnaBridge 143:86740a56073b 803 __ASM volatile ("ldrbt %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
AnnaBridge 143:86740a56073b 804 #endif
AnnaBridge 143:86740a56073b 805 return ((uint8_t) result); /* Add explicit type cast here */
AnnaBridge 143:86740a56073b 806 }
AnnaBridge 143:86740a56073b 807
AnnaBridge 143:86740a56073b 808
AnnaBridge 143:86740a56073b 809 /** \brief LDRT Unprivileged (16 bit)
AnnaBridge 143:86740a56073b 810
AnnaBridge 143:86740a56073b 811 This function executes a Unprivileged LDRT instruction for 16 bit values.
AnnaBridge 143:86740a56073b 812
AnnaBridge 143:86740a56073b 813 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 814 \return value of type uint16_t at (*ptr)
AnnaBridge 143:86740a56073b 815 */
AnnaBridge 143:86740a56073b 816 __attribute__((always_inline)) __STATIC_INLINE uint16_t __LDRHT(volatile uint16_t *addr)
AnnaBridge 143:86740a56073b 817 {
AnnaBridge 143:86740a56073b 818 uint32_t result;
AnnaBridge 143:86740a56073b 819
AnnaBridge 143:86740a56073b 820 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
AnnaBridge 143:86740a56073b 821 __ASM volatile ("ldrht %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 822 #else
AnnaBridge 143:86740a56073b 823 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
AnnaBridge 143:86740a56073b 824 accepted by assembler. So has to use following less efficient pattern.
AnnaBridge 143:86740a56073b 825 */
AnnaBridge 143:86740a56073b 826 __ASM volatile ("ldrht %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
AnnaBridge 143:86740a56073b 827 #endif
AnnaBridge 143:86740a56073b 828 return ((uint16_t) result); /* Add explicit type cast here */
AnnaBridge 143:86740a56073b 829 }
AnnaBridge 143:86740a56073b 830
AnnaBridge 143:86740a56073b 831
AnnaBridge 143:86740a56073b 832 /** \brief LDRT Unprivileged (32 bit)
AnnaBridge 143:86740a56073b 833
AnnaBridge 143:86740a56073b 834 This function executes a Unprivileged LDRT instruction for 32 bit values.
AnnaBridge 143:86740a56073b 835
AnnaBridge 143:86740a56073b 836 \param [in] ptr Pointer to data
AnnaBridge 143:86740a56073b 837 \return value of type uint32_t at (*ptr)
AnnaBridge 143:86740a56073b 838 */
AnnaBridge 143:86740a56073b 839 __attribute__((always_inline)) __STATIC_INLINE uint32_t __LDRT(volatile uint32_t *addr)
AnnaBridge 143:86740a56073b 840 {
AnnaBridge 143:86740a56073b 841 uint32_t result;
AnnaBridge 143:86740a56073b 842
AnnaBridge 143:86740a56073b 843 __ASM volatile ("ldrt %0, %1" : "=r" (result) : "Q" (*addr) );
AnnaBridge 143:86740a56073b 844 return(result);
AnnaBridge 143:86740a56073b 845 }
AnnaBridge 143:86740a56073b 846
AnnaBridge 143:86740a56073b 847
AnnaBridge 143:86740a56073b 848 /** \brief STRT Unprivileged (8 bit)
AnnaBridge 143:86740a56073b 849
AnnaBridge 143:86740a56073b 850 This function executes a Unprivileged STRT instruction for 8 bit values.
AnnaBridge 143:86740a56073b 851
AnnaBridge 143:86740a56073b 852 \param [in] value Value to store
AnnaBridge 143:86740a56073b 853 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 854 */
AnnaBridge 143:86740a56073b 855 __attribute__((always_inline)) __STATIC_INLINE void __STRBT(uint8_t value, volatile uint8_t *addr)
AnnaBridge 143:86740a56073b 856 {
AnnaBridge 143:86740a56073b 857 __ASM volatile ("strbt %1, %0" : "=Q" (*addr) : "r" ((uint32_t)value) );
AnnaBridge 143:86740a56073b 858 }
AnnaBridge 143:86740a56073b 859
AnnaBridge 143:86740a56073b 860
AnnaBridge 143:86740a56073b 861 /** \brief STRT Unprivileged (16 bit)
AnnaBridge 143:86740a56073b 862
AnnaBridge 143:86740a56073b 863 This function executes a Unprivileged STRT instruction for 16 bit values.
AnnaBridge 143:86740a56073b 864
AnnaBridge 143:86740a56073b 865 \param [in] value Value to store
AnnaBridge 143:86740a56073b 866 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 867 */
AnnaBridge 143:86740a56073b 868 __attribute__((always_inline)) __STATIC_INLINE void __STRHT(uint16_t value, volatile uint16_t *addr)
AnnaBridge 143:86740a56073b 869 {
AnnaBridge 143:86740a56073b 870 __ASM volatile ("strht %1, %0" : "=Q" (*addr) : "r" ((uint32_t)value) );
AnnaBridge 143:86740a56073b 871 }
AnnaBridge 143:86740a56073b 872
AnnaBridge 143:86740a56073b 873
AnnaBridge 143:86740a56073b 874 /** \brief STRT Unprivileged (32 bit)
AnnaBridge 143:86740a56073b 875
AnnaBridge 143:86740a56073b 876 This function executes a Unprivileged STRT instruction for 32 bit values.
AnnaBridge 143:86740a56073b 877
AnnaBridge 143:86740a56073b 878 \param [in] value Value to store
AnnaBridge 143:86740a56073b 879 \param [in] ptr Pointer to location
AnnaBridge 143:86740a56073b 880 */
AnnaBridge 143:86740a56073b 881 __attribute__((always_inline)) __STATIC_INLINE void __STRT(uint32_t value, volatile uint32_t *addr)
AnnaBridge 143:86740a56073b 882 {
AnnaBridge 143:86740a56073b 883 __ASM volatile ("strt %1, %0" : "=Q" (*addr) : "r" (value) );
AnnaBridge 143:86740a56073b 884 }
AnnaBridge 143:86740a56073b 885
AnnaBridge 143:86740a56073b 886 #endif /* (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300) */
AnnaBridge 143:86740a56073b 887
AnnaBridge 143:86740a56073b 888
AnnaBridge 143:86740a56073b 889 #elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
AnnaBridge 143:86740a56073b 890 /* IAR iccarm specific functions */
AnnaBridge 143:86740a56073b 891 #include <cmsis_iar.h>
AnnaBridge 143:86740a56073b 892
AnnaBridge 143:86740a56073b 893
AnnaBridge 143:86740a56073b 894 #elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
AnnaBridge 143:86740a56073b 895 /* TI CCS specific functions */
AnnaBridge 143:86740a56073b 896 #include <cmsis_ccs.h>
AnnaBridge 143:86740a56073b 897
AnnaBridge 143:86740a56073b 898
AnnaBridge 143:86740a56073b 899 #elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
AnnaBridge 143:86740a56073b 900 /* TASKING carm specific functions */
AnnaBridge 143:86740a56073b 901 /*
AnnaBridge 143:86740a56073b 902 * The CMSIS functions have been implemented as intrinsics in the compiler.
AnnaBridge 143:86740a56073b 903 * Please use "carm -?i" to get an up to date list of all intrinsics,
AnnaBridge 143:86740a56073b 904 * Including the CMSIS ones.
AnnaBridge 143:86740a56073b 905 */
AnnaBridge 143:86740a56073b 906
AnnaBridge 143:86740a56073b 907
AnnaBridge 143:86740a56073b 908 #elif defined ( __CSMC__ ) /*------------------ COSMIC Compiler -------------------*/
AnnaBridge 143:86740a56073b 909 /* Cosmic specific functions */
AnnaBridge 143:86740a56073b 910 #include <cmsis_csm.h>
AnnaBridge 143:86740a56073b 911
AnnaBridge 143:86740a56073b 912 #endif
AnnaBridge 143:86740a56073b 913
AnnaBridge 143:86740a56073b 914 /*@}*/ /* end of group CMSIS_Core_InstructionInterface */
AnnaBridge 143:86740a56073b 915
AnnaBridge 143:86740a56073b 916 #endif /* __CORE_CMINSTR_H */