Micah B / mbed

mbed

Dependents:   DHTSensor_Test K64F_eCompass_OneNET_JW

TARGET_ARCH_GPRS/core_cmInstr.h@0:2cc6bb4d7fea, 2015-02-25 (annotated)

Committer:
mbotkinl
Date:
Wed Feb 25 20:22:22 2015 +0000
Revision:
0:2cc6bb4d7fea
Working code to read Temperature and Humidity readings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbotkinl 0:2cc6bb4d7fea 1 /**************************************************************************//**
mbotkinl 0:2cc6bb4d7fea 2 * @file core_cmInstr.h
mbotkinl 0:2cc6bb4d7fea 3 * @brief CMSIS Cortex-M Core Instruction Access Header File
mbotkinl 0:2cc6bb4d7fea 4 * @version V3.20
mbotkinl 0:2cc6bb4d7fea 5 * @date 05. March 2013
mbotkinl 0:2cc6bb4d7fea 6 *
mbotkinl 0:2cc6bb4d7fea 7 * @note
mbotkinl 0:2cc6bb4d7fea 8 *
mbotkinl 0:2cc6bb4d7fea 9 ******************************************************************************/
mbotkinl 0:2cc6bb4d7fea 10 /* Copyright (c) 2009 - 2013 ARM LIMITED
mbotkinl 0:2cc6bb4d7fea 11
mbotkinl 0:2cc6bb4d7fea 12 All rights reserved.
mbotkinl 0:2cc6bb4d7fea 13 Redistribution and use in source and binary forms, with or without
mbotkinl 0:2cc6bb4d7fea 14 modification, are permitted provided that the following conditions are met:
mbotkinl 0:2cc6bb4d7fea 15 - Redistributions of source code must retain the above copyright
mbotkinl 0:2cc6bb4d7fea 16 notice, this list of conditions and the following disclaimer.
mbotkinl 0:2cc6bb4d7fea 17 - Redistributions in binary form must reproduce the above copyright
mbotkinl 0:2cc6bb4d7fea 18 notice, this list of conditions and the following disclaimer in the
mbotkinl 0:2cc6bb4d7fea 19 documentation and/or other materials provided with the distribution.
mbotkinl 0:2cc6bb4d7fea 20 - Neither the name of ARM nor the names of its contributors may be used
mbotkinl 0:2cc6bb4d7fea 21 to endorse or promote products derived from this software without
mbotkinl 0:2cc6bb4d7fea 22 specific prior written permission.
mbotkinl 0:2cc6bb4d7fea 23 *
mbotkinl 0:2cc6bb4d7fea 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbotkinl 0:2cc6bb4d7fea 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbotkinl 0:2cc6bb4d7fea 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbotkinl 0:2cc6bb4d7fea 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbotkinl 0:2cc6bb4d7fea 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbotkinl 0:2cc6bb4d7fea 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbotkinl 0:2cc6bb4d7fea 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbotkinl 0:2cc6bb4d7fea 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbotkinl 0:2cc6bb4d7fea 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbotkinl 0:2cc6bb4d7fea 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbotkinl 0:2cc6bb4d7fea 34 POSSIBILITY OF SUCH DAMAGE.
mbotkinl 0:2cc6bb4d7fea 35 ---------------------------------------------------------------------------*/
mbotkinl 0:2cc6bb4d7fea 36
mbotkinl 0:2cc6bb4d7fea 37
mbotkinl 0:2cc6bb4d7fea 38 #ifndef __CORE_CMINSTR_H
mbotkinl 0:2cc6bb4d7fea 39 #define __CORE_CMINSTR_H
mbotkinl 0:2cc6bb4d7fea 40
mbotkinl 0:2cc6bb4d7fea 41
mbotkinl 0:2cc6bb4d7fea 42 /* ########################## Core Instruction Access ######################### */
mbotkinl 0:2cc6bb4d7fea 43 /** \defgroup CMSIS_Core_InstructionInterface CMSIS Core Instruction Interface
mbotkinl 0:2cc6bb4d7fea 44 Access to dedicated instructions
mbotkinl 0:2cc6bb4d7fea 45 @{
mbotkinl 0:2cc6bb4d7fea 46 */
mbotkinl 0:2cc6bb4d7fea 47
mbotkinl 0:2cc6bb4d7fea 48 #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
mbotkinl 0:2cc6bb4d7fea 49 /* ARM armcc specific functions */
mbotkinl 0:2cc6bb4d7fea 50
mbotkinl 0:2cc6bb4d7fea 51 #if (__ARMCC_VERSION < 400677)
mbotkinl 0:2cc6bb4d7fea 52 #error "Please use ARM Compiler Toolchain V4.0.677 or later!"
mbotkinl 0:2cc6bb4d7fea 53 #endif
mbotkinl 0:2cc6bb4d7fea 54
mbotkinl 0:2cc6bb4d7fea 55
mbotkinl 0:2cc6bb4d7fea 56 /** \brief No Operation
mbotkinl 0:2cc6bb4d7fea 57
mbotkinl 0:2cc6bb4d7fea 58 No Operation does nothing. This instruction can be used for code alignment purposes.
mbotkinl 0:2cc6bb4d7fea 59 */
mbotkinl 0:2cc6bb4d7fea 60 #define __NOP __nop
mbotkinl 0:2cc6bb4d7fea 61
mbotkinl 0:2cc6bb4d7fea 62
mbotkinl 0:2cc6bb4d7fea 63 /** \brief Wait For Interrupt
mbotkinl 0:2cc6bb4d7fea 64
mbotkinl 0:2cc6bb4d7fea 65 Wait For Interrupt is a hint instruction that suspends execution
mbotkinl 0:2cc6bb4d7fea 66 until one of a number of events occurs.
mbotkinl 0:2cc6bb4d7fea 67 */
mbotkinl 0:2cc6bb4d7fea 68 #define __WFI __wfi
mbotkinl 0:2cc6bb4d7fea 69
mbotkinl 0:2cc6bb4d7fea 70
mbotkinl 0:2cc6bb4d7fea 71 /** \brief Wait For Event
mbotkinl 0:2cc6bb4d7fea 72
mbotkinl 0:2cc6bb4d7fea 73 Wait For Event is a hint instruction that permits the processor to enter
mbotkinl 0:2cc6bb4d7fea 74 a low-power state until one of a number of events occurs.
mbotkinl 0:2cc6bb4d7fea 75 */
mbotkinl 0:2cc6bb4d7fea 76 #define __WFE __wfe
mbotkinl 0:2cc6bb4d7fea 77
mbotkinl 0:2cc6bb4d7fea 78
mbotkinl 0:2cc6bb4d7fea 79 /** \brief Send Event
mbotkinl 0:2cc6bb4d7fea 80
mbotkinl 0:2cc6bb4d7fea 81 Send Event is a hint instruction. It causes an event to be signaled to the CPU.
mbotkinl 0:2cc6bb4d7fea 82 */
mbotkinl 0:2cc6bb4d7fea 83 #define __SEV __sev
mbotkinl 0:2cc6bb4d7fea 84
mbotkinl 0:2cc6bb4d7fea 85
mbotkinl 0:2cc6bb4d7fea 86 /** \brief Instruction Synchronization Barrier
mbotkinl 0:2cc6bb4d7fea 87
mbotkinl 0:2cc6bb4d7fea 88 Instruction Synchronization Barrier flushes the pipeline in the processor,
mbotkinl 0:2cc6bb4d7fea 89 so that all instructions following the ISB are fetched from cache or
mbotkinl 0:2cc6bb4d7fea 90 memory, after the instruction has been completed.
mbotkinl 0:2cc6bb4d7fea 91 */
mbotkinl 0:2cc6bb4d7fea 92 #define __ISB() __isb(0xF)
mbotkinl 0:2cc6bb4d7fea 93
mbotkinl 0:2cc6bb4d7fea 94
mbotkinl 0:2cc6bb4d7fea 95 /** \brief Data Synchronization Barrier
mbotkinl 0:2cc6bb4d7fea 96
mbotkinl 0:2cc6bb4d7fea 97 This function acts as a special kind of Data Memory Barrier.
mbotkinl 0:2cc6bb4d7fea 98 It completes when all explicit memory accesses before this instruction complete.
mbotkinl 0:2cc6bb4d7fea 99 */
mbotkinl 0:2cc6bb4d7fea 100 #define __DSB() __dsb(0xF)
mbotkinl 0:2cc6bb4d7fea 101
mbotkinl 0:2cc6bb4d7fea 102
mbotkinl 0:2cc6bb4d7fea 103 /** \brief Data Memory Barrier
mbotkinl 0:2cc6bb4d7fea 104
mbotkinl 0:2cc6bb4d7fea 105 This function ensures the apparent order of the explicit memory operations before
mbotkinl 0:2cc6bb4d7fea 106 and after the instruction, without ensuring their completion.
mbotkinl 0:2cc6bb4d7fea 107 */
mbotkinl 0:2cc6bb4d7fea 108 #define __DMB() __dmb(0xF)
mbotkinl 0:2cc6bb4d7fea 109
mbotkinl 0:2cc6bb4d7fea 110
mbotkinl 0:2cc6bb4d7fea 111 /** \brief Reverse byte order (32 bit)
mbotkinl 0:2cc6bb4d7fea 112
mbotkinl 0:2cc6bb4d7fea 113 This function reverses the byte order in integer value.
mbotkinl 0:2cc6bb4d7fea 114
mbotkinl 0:2cc6bb4d7fea 115 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 116 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 117 */
mbotkinl 0:2cc6bb4d7fea 118 #define __REV __rev
mbotkinl 0:2cc6bb4d7fea 119
mbotkinl 0:2cc6bb4d7fea 120
mbotkinl 0:2cc6bb4d7fea 121 /** \brief Reverse byte order (16 bit)
mbotkinl 0:2cc6bb4d7fea 122
mbotkinl 0:2cc6bb4d7fea 123 This function reverses the byte order in two unsigned short values.
mbotkinl 0:2cc6bb4d7fea 124
mbotkinl 0:2cc6bb4d7fea 125 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 126 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 127 */
mbotkinl 0:2cc6bb4d7fea 128 #ifndef __NO_EMBEDDED_ASM
mbotkinl 0:2cc6bb4d7fea 129 __attribute__((section(".rev16_text"))) __STATIC_INLINE __ASM uint32_t __REV16(uint32_t value)
mbotkinl 0:2cc6bb4d7fea 130 {
mbotkinl 0:2cc6bb4d7fea 131 rev16 r0, r0
mbotkinl 0:2cc6bb4d7fea 132 bx lr
mbotkinl 0:2cc6bb4d7fea 133 }
mbotkinl 0:2cc6bb4d7fea 134 #endif
mbotkinl 0:2cc6bb4d7fea 135
mbotkinl 0:2cc6bb4d7fea 136 /** \brief Reverse byte order in signed short value
mbotkinl 0:2cc6bb4d7fea 137
mbotkinl 0:2cc6bb4d7fea 138 This function reverses the byte order in a signed short value with sign extension to integer.
mbotkinl 0:2cc6bb4d7fea 139
mbotkinl 0:2cc6bb4d7fea 140 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 141 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 142 */
mbotkinl 0:2cc6bb4d7fea 143 #ifndef __NO_EMBEDDED_ASM
mbotkinl 0:2cc6bb4d7fea 144 __attribute__((section(".revsh_text"))) __STATIC_INLINE __ASM int32_t __REVSH(int32_t value)
mbotkinl 0:2cc6bb4d7fea 145 {
mbotkinl 0:2cc6bb4d7fea 146 revsh r0, r0
mbotkinl 0:2cc6bb4d7fea 147 bx lr
mbotkinl 0:2cc6bb4d7fea 148 }
mbotkinl 0:2cc6bb4d7fea 149 #endif
mbotkinl 0:2cc6bb4d7fea 150
mbotkinl 0:2cc6bb4d7fea 151
mbotkinl 0:2cc6bb4d7fea 152 /** \brief Rotate Right in unsigned value (32 bit)
mbotkinl 0:2cc6bb4d7fea 153
mbotkinl 0:2cc6bb4d7fea 154 This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits.
mbotkinl 0:2cc6bb4d7fea 155
mbotkinl 0:2cc6bb4d7fea 156 \param [in] value Value to rotate
mbotkinl 0:2cc6bb4d7fea 157 \param [in] value Number of Bits to rotate
mbotkinl 0:2cc6bb4d7fea 158 \return Rotated value
mbotkinl 0:2cc6bb4d7fea 159 */
mbotkinl 0:2cc6bb4d7fea 160 #define __ROR __ror
mbotkinl 0:2cc6bb4d7fea 161
mbotkinl 0:2cc6bb4d7fea 162
mbotkinl 0:2cc6bb4d7fea 163 /** \brief Breakpoint
mbotkinl 0:2cc6bb4d7fea 164
mbotkinl 0:2cc6bb4d7fea 165 This function causes the processor to enter Debug state.
mbotkinl 0:2cc6bb4d7fea 166 Debug tools can use this to investigate system state when the instruction at a particular address is reached.
mbotkinl 0:2cc6bb4d7fea 167
mbotkinl 0:2cc6bb4d7fea 168 \param [in] value is ignored by the processor.
mbotkinl 0:2cc6bb4d7fea 169 If required, a debugger can use it to store additional information about the breakpoint.
mbotkinl 0:2cc6bb4d7fea 170 */
mbotkinl 0:2cc6bb4d7fea 171 #define __BKPT(value) __breakpoint(value)
mbotkinl 0:2cc6bb4d7fea 172
mbotkinl 0:2cc6bb4d7fea 173
mbotkinl 0:2cc6bb4d7fea 174 #if (__CORTEX_M >= 0x03)
mbotkinl 0:2cc6bb4d7fea 175
mbotkinl 0:2cc6bb4d7fea 176 /** \brief Reverse bit order of value
mbotkinl 0:2cc6bb4d7fea 177
mbotkinl 0:2cc6bb4d7fea 178 This function reverses the bit order of the given value.
mbotkinl 0:2cc6bb4d7fea 179
mbotkinl 0:2cc6bb4d7fea 180 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 181 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 182 */
mbotkinl 0:2cc6bb4d7fea 183 #define __RBIT __rbit
mbotkinl 0:2cc6bb4d7fea 184
mbotkinl 0:2cc6bb4d7fea 185
mbotkinl 0:2cc6bb4d7fea 186 /** \brief LDR Exclusive (8 bit)
mbotkinl 0:2cc6bb4d7fea 187
mbotkinl 0:2cc6bb4d7fea 188 This function performs a exclusive LDR command for 8 bit value.
mbotkinl 0:2cc6bb4d7fea 189
mbotkinl 0:2cc6bb4d7fea 190 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 191 \return value of type uint8_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 192 */
mbotkinl 0:2cc6bb4d7fea 193 #define __LDREXB(ptr) ((uint8_t ) __ldrex(ptr))
mbotkinl 0:2cc6bb4d7fea 194
mbotkinl 0:2cc6bb4d7fea 195
mbotkinl 0:2cc6bb4d7fea 196 /** \brief LDR Exclusive (16 bit)
mbotkinl 0:2cc6bb4d7fea 197
mbotkinl 0:2cc6bb4d7fea 198 This function performs a exclusive LDR command for 16 bit values.
mbotkinl 0:2cc6bb4d7fea 199
mbotkinl 0:2cc6bb4d7fea 200 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 201 \return value of type uint16_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 202 */
mbotkinl 0:2cc6bb4d7fea 203 #define __LDREXH(ptr) ((uint16_t) __ldrex(ptr))
mbotkinl 0:2cc6bb4d7fea 204
mbotkinl 0:2cc6bb4d7fea 205
mbotkinl 0:2cc6bb4d7fea 206 /** \brief LDR Exclusive (32 bit)
mbotkinl 0:2cc6bb4d7fea 207
mbotkinl 0:2cc6bb4d7fea 208 This function performs a exclusive LDR command for 32 bit values.
mbotkinl 0:2cc6bb4d7fea 209
mbotkinl 0:2cc6bb4d7fea 210 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 211 \return value of type uint32_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 212 */
mbotkinl 0:2cc6bb4d7fea 213 #define __LDREXW(ptr) ((uint32_t ) __ldrex(ptr))
mbotkinl 0:2cc6bb4d7fea 214
mbotkinl 0:2cc6bb4d7fea 215
mbotkinl 0:2cc6bb4d7fea 216 /** \brief STR Exclusive (8 bit)
mbotkinl 0:2cc6bb4d7fea 217
mbotkinl 0:2cc6bb4d7fea 218 This function performs a exclusive STR command for 8 bit values.
mbotkinl 0:2cc6bb4d7fea 219
mbotkinl 0:2cc6bb4d7fea 220 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 221 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 222 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 223 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 224 */
mbotkinl 0:2cc6bb4d7fea 225 #define __STREXB(value, ptr) __strex(value, ptr)
mbotkinl 0:2cc6bb4d7fea 226
mbotkinl 0:2cc6bb4d7fea 227
mbotkinl 0:2cc6bb4d7fea 228 /** \brief STR Exclusive (16 bit)
mbotkinl 0:2cc6bb4d7fea 229
mbotkinl 0:2cc6bb4d7fea 230 This function performs a exclusive STR command for 16 bit values.
mbotkinl 0:2cc6bb4d7fea 231
mbotkinl 0:2cc6bb4d7fea 232 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 233 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 234 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 235 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 236 */
mbotkinl 0:2cc6bb4d7fea 237 #define __STREXH(value, ptr) __strex(value, ptr)
mbotkinl 0:2cc6bb4d7fea 238
mbotkinl 0:2cc6bb4d7fea 239
mbotkinl 0:2cc6bb4d7fea 240 /** \brief STR Exclusive (32 bit)
mbotkinl 0:2cc6bb4d7fea 241
mbotkinl 0:2cc6bb4d7fea 242 This function performs a exclusive STR command for 32 bit values.
mbotkinl 0:2cc6bb4d7fea 243
mbotkinl 0:2cc6bb4d7fea 244 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 245 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 246 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 247 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 248 */
mbotkinl 0:2cc6bb4d7fea 249 #define __STREXW(value, ptr) __strex(value, ptr)
mbotkinl 0:2cc6bb4d7fea 250
mbotkinl 0:2cc6bb4d7fea 251
mbotkinl 0:2cc6bb4d7fea 252 /** \brief Remove the exclusive lock
mbotkinl 0:2cc6bb4d7fea 253
mbotkinl 0:2cc6bb4d7fea 254 This function removes the exclusive lock which is created by LDREX.
mbotkinl 0:2cc6bb4d7fea 255
mbotkinl 0:2cc6bb4d7fea 256 */
mbotkinl 0:2cc6bb4d7fea 257 #define __CLREX __clrex
mbotkinl 0:2cc6bb4d7fea 258
mbotkinl 0:2cc6bb4d7fea 259
mbotkinl 0:2cc6bb4d7fea 260 /** \brief Signed Saturate
mbotkinl 0:2cc6bb4d7fea 261
mbotkinl 0:2cc6bb4d7fea 262 This function saturates a signed value.
mbotkinl 0:2cc6bb4d7fea 263
mbotkinl 0:2cc6bb4d7fea 264 \param [in] value Value to be saturated
mbotkinl 0:2cc6bb4d7fea 265 \param [in] sat Bit position to saturate to (1..32)
mbotkinl 0:2cc6bb4d7fea 266 \return Saturated value
mbotkinl 0:2cc6bb4d7fea 267 */
mbotkinl 0:2cc6bb4d7fea 268 #define __SSAT __ssat
mbotkinl 0:2cc6bb4d7fea 269
mbotkinl 0:2cc6bb4d7fea 270
mbotkinl 0:2cc6bb4d7fea 271 /** \brief Unsigned Saturate
mbotkinl 0:2cc6bb4d7fea 272
mbotkinl 0:2cc6bb4d7fea 273 This function saturates an unsigned value.
mbotkinl 0:2cc6bb4d7fea 274
mbotkinl 0:2cc6bb4d7fea 275 \param [in] value Value to be saturated
mbotkinl 0:2cc6bb4d7fea 276 \param [in] sat Bit position to saturate to (0..31)
mbotkinl 0:2cc6bb4d7fea 277 \return Saturated value
mbotkinl 0:2cc6bb4d7fea 278 */
mbotkinl 0:2cc6bb4d7fea 279 #define __USAT __usat
mbotkinl 0:2cc6bb4d7fea 280
mbotkinl 0:2cc6bb4d7fea 281
mbotkinl 0:2cc6bb4d7fea 282 /** \brief Count leading zeros
mbotkinl 0:2cc6bb4d7fea 283
mbotkinl 0:2cc6bb4d7fea 284 This function counts the number of leading zeros of a data value.
mbotkinl 0:2cc6bb4d7fea 285
mbotkinl 0:2cc6bb4d7fea 286 \param [in] value Value to count the leading zeros
mbotkinl 0:2cc6bb4d7fea 287 \return number of leading zeros in value
mbotkinl 0:2cc6bb4d7fea 288 */
mbotkinl 0:2cc6bb4d7fea 289 #define __CLZ __clz
mbotkinl 0:2cc6bb4d7fea 290
mbotkinl 0:2cc6bb4d7fea 291 #endif /* (__CORTEX_M >= 0x03) */
mbotkinl 0:2cc6bb4d7fea 292
mbotkinl 0:2cc6bb4d7fea 293
mbotkinl 0:2cc6bb4d7fea 294
mbotkinl 0:2cc6bb4d7fea 295 #elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
mbotkinl 0:2cc6bb4d7fea 296 /* IAR iccarm specific functions */
mbotkinl 0:2cc6bb4d7fea 297
mbotkinl 0:2cc6bb4d7fea 298 #include <cmsis_iar.h>
mbotkinl 0:2cc6bb4d7fea 299
mbotkinl 0:2cc6bb4d7fea 300
mbotkinl 0:2cc6bb4d7fea 301 #elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
mbotkinl 0:2cc6bb4d7fea 302 /* TI CCS specific functions */
mbotkinl 0:2cc6bb4d7fea 303
mbotkinl 0:2cc6bb4d7fea 304 #include <cmsis_ccs.h>
mbotkinl 0:2cc6bb4d7fea 305
mbotkinl 0:2cc6bb4d7fea 306
mbotkinl 0:2cc6bb4d7fea 307 #elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
mbotkinl 0:2cc6bb4d7fea 308 /* GNU gcc specific functions */
mbotkinl 0:2cc6bb4d7fea 309
mbotkinl 0:2cc6bb4d7fea 310 /* Define macros for porting to both thumb1 and thumb2.
mbotkinl 0:2cc6bb4d7fea 311 * For thumb1, use low register (r0-r7), specified by constrant "l"
mbotkinl 0:2cc6bb4d7fea 312 * Otherwise, use general registers, specified by constrant "r" */
mbotkinl 0:2cc6bb4d7fea 313 #if defined (__thumb__) && !defined (__thumb2__)
mbotkinl 0:2cc6bb4d7fea 314 #define __CMSIS_GCC_OUT_REG(r) "=l" (r)
mbotkinl 0:2cc6bb4d7fea 315 #define __CMSIS_GCC_USE_REG(r) "l" (r)
mbotkinl 0:2cc6bb4d7fea 316 #else
mbotkinl 0:2cc6bb4d7fea 317 #define __CMSIS_GCC_OUT_REG(r) "=r" (r)
mbotkinl 0:2cc6bb4d7fea 318 #define __CMSIS_GCC_USE_REG(r) "r" (r)
mbotkinl 0:2cc6bb4d7fea 319 #endif
mbotkinl 0:2cc6bb4d7fea 320
mbotkinl 0:2cc6bb4d7fea 321 /** \brief No Operation
mbotkinl 0:2cc6bb4d7fea 322
mbotkinl 0:2cc6bb4d7fea 323 No Operation does nothing. This instruction can be used for code alignment purposes.
mbotkinl 0:2cc6bb4d7fea 324 */
mbotkinl 0:2cc6bb4d7fea 325 __attribute__( ( always_inline ) ) __STATIC_INLINE void __NOP(void)
mbotkinl 0:2cc6bb4d7fea 326 {
mbotkinl 0:2cc6bb4d7fea 327 __ASM volatile ("nop");
mbotkinl 0:2cc6bb4d7fea 328 }
mbotkinl 0:2cc6bb4d7fea 329
mbotkinl 0:2cc6bb4d7fea 330
mbotkinl 0:2cc6bb4d7fea 331 /** \brief Wait For Interrupt
mbotkinl 0:2cc6bb4d7fea 332
mbotkinl 0:2cc6bb4d7fea 333 Wait For Interrupt is a hint instruction that suspends execution
mbotkinl 0:2cc6bb4d7fea 334 until one of a number of events occurs.
mbotkinl 0:2cc6bb4d7fea 335 */
mbotkinl 0:2cc6bb4d7fea 336 __attribute__( ( always_inline ) ) __STATIC_INLINE void __WFI(void)
mbotkinl 0:2cc6bb4d7fea 337 {
mbotkinl 0:2cc6bb4d7fea 338 __ASM volatile ("wfi");
mbotkinl 0:2cc6bb4d7fea 339 }
mbotkinl 0:2cc6bb4d7fea 340
mbotkinl 0:2cc6bb4d7fea 341
mbotkinl 0:2cc6bb4d7fea 342 /** \brief Wait For Event
mbotkinl 0:2cc6bb4d7fea 343
mbotkinl 0:2cc6bb4d7fea 344 Wait For Event is a hint instruction that permits the processor to enter
mbotkinl 0:2cc6bb4d7fea 345 a low-power state until one of a number of events occurs.
mbotkinl 0:2cc6bb4d7fea 346 */
mbotkinl 0:2cc6bb4d7fea 347 __attribute__( ( always_inline ) ) __STATIC_INLINE void __WFE(void)
mbotkinl 0:2cc6bb4d7fea 348 {
mbotkinl 0:2cc6bb4d7fea 349 __ASM volatile ("wfe");
mbotkinl 0:2cc6bb4d7fea 350 }
mbotkinl 0:2cc6bb4d7fea 351
mbotkinl 0:2cc6bb4d7fea 352
mbotkinl 0:2cc6bb4d7fea 353 /** \brief Send Event
mbotkinl 0:2cc6bb4d7fea 354
mbotkinl 0:2cc6bb4d7fea 355 Send Event is a hint instruction. It causes an event to be signaled to the CPU.
mbotkinl 0:2cc6bb4d7fea 356 */
mbotkinl 0:2cc6bb4d7fea 357 __attribute__( ( always_inline ) ) __STATIC_INLINE void __SEV(void)
mbotkinl 0:2cc6bb4d7fea 358 {
mbotkinl 0:2cc6bb4d7fea 359 __ASM volatile ("sev");
mbotkinl 0:2cc6bb4d7fea 360 }
mbotkinl 0:2cc6bb4d7fea 361
mbotkinl 0:2cc6bb4d7fea 362
mbotkinl 0:2cc6bb4d7fea 363 /** \brief Instruction Synchronization Barrier
mbotkinl 0:2cc6bb4d7fea 364
mbotkinl 0:2cc6bb4d7fea 365 Instruction Synchronization Barrier flushes the pipeline in the processor,
mbotkinl 0:2cc6bb4d7fea 366 so that all instructions following the ISB are fetched from cache or
mbotkinl 0:2cc6bb4d7fea 367 memory, after the instruction has been completed.
mbotkinl 0:2cc6bb4d7fea 368 */
mbotkinl 0:2cc6bb4d7fea 369 __attribute__( ( always_inline ) ) __STATIC_INLINE void __ISB(void)
mbotkinl 0:2cc6bb4d7fea 370 {
mbotkinl 0:2cc6bb4d7fea 371 __ASM volatile ("isb");
mbotkinl 0:2cc6bb4d7fea 372 }
mbotkinl 0:2cc6bb4d7fea 373
mbotkinl 0:2cc6bb4d7fea 374
mbotkinl 0:2cc6bb4d7fea 375 /** \brief Data Synchronization Barrier
mbotkinl 0:2cc6bb4d7fea 376
mbotkinl 0:2cc6bb4d7fea 377 This function acts as a special kind of Data Memory Barrier.
mbotkinl 0:2cc6bb4d7fea 378 It completes when all explicit memory accesses before this instruction complete.
mbotkinl 0:2cc6bb4d7fea 379 */
mbotkinl 0:2cc6bb4d7fea 380 __attribute__( ( always_inline ) ) __STATIC_INLINE void __DSB(void)
mbotkinl 0:2cc6bb4d7fea 381 {
mbotkinl 0:2cc6bb4d7fea 382 __ASM volatile ("dsb");
mbotkinl 0:2cc6bb4d7fea 383 }
mbotkinl 0:2cc6bb4d7fea 384
mbotkinl 0:2cc6bb4d7fea 385
mbotkinl 0:2cc6bb4d7fea 386 /** \brief Data Memory Barrier
mbotkinl 0:2cc6bb4d7fea 387
mbotkinl 0:2cc6bb4d7fea 388 This function ensures the apparent order of the explicit memory operations before
mbotkinl 0:2cc6bb4d7fea 389 and after the instruction, without ensuring their completion.
mbotkinl 0:2cc6bb4d7fea 390 */
mbotkinl 0:2cc6bb4d7fea 391 __attribute__( ( always_inline ) ) __STATIC_INLINE void __DMB(void)
mbotkinl 0:2cc6bb4d7fea 392 {
mbotkinl 0:2cc6bb4d7fea 393 __ASM volatile ("dmb");
mbotkinl 0:2cc6bb4d7fea 394 }
mbotkinl 0:2cc6bb4d7fea 395
mbotkinl 0:2cc6bb4d7fea 396
mbotkinl 0:2cc6bb4d7fea 397 /** \brief Reverse byte order (32 bit)
mbotkinl 0:2cc6bb4d7fea 398
mbotkinl 0:2cc6bb4d7fea 399 This function reverses the byte order in integer value.
mbotkinl 0:2cc6bb4d7fea 400
mbotkinl 0:2cc6bb4d7fea 401 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 402 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 403 */
mbotkinl 0:2cc6bb4d7fea 404 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV(uint32_t value)
mbotkinl 0:2cc6bb4d7fea 405 {
mbotkinl 0:2cc6bb4d7fea 406 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
mbotkinl 0:2cc6bb4d7fea 407 return __builtin_bswap32(value);
mbotkinl 0:2cc6bb4d7fea 408 #else
mbotkinl 0:2cc6bb4d7fea 409 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 410
mbotkinl 0:2cc6bb4d7fea 411 __ASM volatile ("rev %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
mbotkinl 0:2cc6bb4d7fea 412 return(result);
mbotkinl 0:2cc6bb4d7fea 413 #endif
mbotkinl 0:2cc6bb4d7fea 414 }
mbotkinl 0:2cc6bb4d7fea 415
mbotkinl 0:2cc6bb4d7fea 416
mbotkinl 0:2cc6bb4d7fea 417 /** \brief Reverse byte order (16 bit)
mbotkinl 0:2cc6bb4d7fea 418
mbotkinl 0:2cc6bb4d7fea 419 This function reverses the byte order in two unsigned short values.
mbotkinl 0:2cc6bb4d7fea 420
mbotkinl 0:2cc6bb4d7fea 421 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 422 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 423 */
mbotkinl 0:2cc6bb4d7fea 424 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV16(uint32_t value)
mbotkinl 0:2cc6bb4d7fea 425 {
mbotkinl 0:2cc6bb4d7fea 426 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 427
mbotkinl 0:2cc6bb4d7fea 428 __ASM volatile ("rev16 %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
mbotkinl 0:2cc6bb4d7fea 429 return(result);
mbotkinl 0:2cc6bb4d7fea 430 }
mbotkinl 0:2cc6bb4d7fea 431
mbotkinl 0:2cc6bb4d7fea 432
mbotkinl 0:2cc6bb4d7fea 433 /** \brief Reverse byte order in signed short value
mbotkinl 0:2cc6bb4d7fea 434
mbotkinl 0:2cc6bb4d7fea 435 This function reverses the byte order in a signed short value with sign extension to integer.
mbotkinl 0:2cc6bb4d7fea 436
mbotkinl 0:2cc6bb4d7fea 437 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 438 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 439 */
mbotkinl 0:2cc6bb4d7fea 440 __attribute__( ( always_inline ) ) __STATIC_INLINE int32_t __REVSH(int32_t value)
mbotkinl 0:2cc6bb4d7fea 441 {
mbotkinl 0:2cc6bb4d7fea 442 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
mbotkinl 0:2cc6bb4d7fea 443 return (short)__builtin_bswap16(value);
mbotkinl 0:2cc6bb4d7fea 444 #else
mbotkinl 0:2cc6bb4d7fea 445 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 446
mbotkinl 0:2cc6bb4d7fea 447 __ASM volatile ("revsh %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
mbotkinl 0:2cc6bb4d7fea 448 return(result);
mbotkinl 0:2cc6bb4d7fea 449 #endif
mbotkinl 0:2cc6bb4d7fea 450 }
mbotkinl 0:2cc6bb4d7fea 451
mbotkinl 0:2cc6bb4d7fea 452
mbotkinl 0:2cc6bb4d7fea 453 /** \brief Rotate Right in unsigned value (32 bit)
mbotkinl 0:2cc6bb4d7fea 454
mbotkinl 0:2cc6bb4d7fea 455 This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits.
mbotkinl 0:2cc6bb4d7fea 456
mbotkinl 0:2cc6bb4d7fea 457 \param [in] value Value to rotate
mbotkinl 0:2cc6bb4d7fea 458 \param [in] value Number of Bits to rotate
mbotkinl 0:2cc6bb4d7fea 459 \return Rotated value
mbotkinl 0:2cc6bb4d7fea 460 */
mbotkinl 0:2cc6bb4d7fea 461 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __ROR(uint32_t op1, uint32_t op2)
mbotkinl 0:2cc6bb4d7fea 462 {
mbotkinl 0:2cc6bb4d7fea 463 return (op1 >> op2) | (op1 << (32 - op2));
mbotkinl 0:2cc6bb4d7fea 464 }
mbotkinl 0:2cc6bb4d7fea 465
mbotkinl 0:2cc6bb4d7fea 466
mbotkinl 0:2cc6bb4d7fea 467 /** \brief Breakpoint
mbotkinl 0:2cc6bb4d7fea 468
mbotkinl 0:2cc6bb4d7fea 469 This function causes the processor to enter Debug state.
mbotkinl 0:2cc6bb4d7fea 470 Debug tools can use this to investigate system state when the instruction at a particular address is reached.
mbotkinl 0:2cc6bb4d7fea 471
mbotkinl 0:2cc6bb4d7fea 472 \param [in] value is ignored by the processor.
mbotkinl 0:2cc6bb4d7fea 473 If required, a debugger can use it to store additional information about the breakpoint.
mbotkinl 0:2cc6bb4d7fea 474 */
mbotkinl 0:2cc6bb4d7fea 475 #define __BKPT(value) __ASM volatile ("bkpt "#value)
mbotkinl 0:2cc6bb4d7fea 476
mbotkinl 0:2cc6bb4d7fea 477
mbotkinl 0:2cc6bb4d7fea 478 #if (__CORTEX_M >= 0x03)
mbotkinl 0:2cc6bb4d7fea 479
mbotkinl 0:2cc6bb4d7fea 480 /** \brief Reverse bit order of value
mbotkinl 0:2cc6bb4d7fea 481
mbotkinl 0:2cc6bb4d7fea 482 This function reverses the bit order of the given value.
mbotkinl 0:2cc6bb4d7fea 483
mbotkinl 0:2cc6bb4d7fea 484 \param [in] value Value to reverse
mbotkinl 0:2cc6bb4d7fea 485 \return Reversed value
mbotkinl 0:2cc6bb4d7fea 486 */
mbotkinl 0:2cc6bb4d7fea 487 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
mbotkinl 0:2cc6bb4d7fea 488 {
mbotkinl 0:2cc6bb4d7fea 489 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 490
mbotkinl 0:2cc6bb4d7fea 491 __ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
mbotkinl 0:2cc6bb4d7fea 492 return(result);
mbotkinl 0:2cc6bb4d7fea 493 }
mbotkinl 0:2cc6bb4d7fea 494
mbotkinl 0:2cc6bb4d7fea 495
mbotkinl 0:2cc6bb4d7fea 496 /** \brief LDR Exclusive (8 bit)
mbotkinl 0:2cc6bb4d7fea 497
mbotkinl 0:2cc6bb4d7fea 498 This function performs a exclusive LDR command for 8 bit value.
mbotkinl 0:2cc6bb4d7fea 499
mbotkinl 0:2cc6bb4d7fea 500 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 501 \return value of type uint8_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 502 */
mbotkinl 0:2cc6bb4d7fea 503 __attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __LDREXB(volatile uint8_t *addr)
mbotkinl 0:2cc6bb4d7fea 504 {
mbotkinl 0:2cc6bb4d7fea 505 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 506
mbotkinl 0:2cc6bb4d7fea 507 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
mbotkinl 0:2cc6bb4d7fea 508 __ASM volatile ("ldrexb %0, %1" : "=r" (result) : "Q" (*addr) );
mbotkinl 0:2cc6bb4d7fea 509 #else
mbotkinl 0:2cc6bb4d7fea 510 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
mbotkinl 0:2cc6bb4d7fea 511 accepted by assembler. So has to use following less efficient pattern.
mbotkinl 0:2cc6bb4d7fea 512 */
mbotkinl 0:2cc6bb4d7fea 513 __ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
mbotkinl 0:2cc6bb4d7fea 514 #endif
mbotkinl 0:2cc6bb4d7fea 515 return(result);
mbotkinl 0:2cc6bb4d7fea 516 }
mbotkinl 0:2cc6bb4d7fea 517
mbotkinl 0:2cc6bb4d7fea 518
mbotkinl 0:2cc6bb4d7fea 519 /** \brief LDR Exclusive (16 bit)
mbotkinl 0:2cc6bb4d7fea 520
mbotkinl 0:2cc6bb4d7fea 521 This function performs a exclusive LDR command for 16 bit values.
mbotkinl 0:2cc6bb4d7fea 522
mbotkinl 0:2cc6bb4d7fea 523 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 524 \return value of type uint16_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 525 */
mbotkinl 0:2cc6bb4d7fea 526 __attribute__( ( always_inline ) ) __STATIC_INLINE uint16_t __LDREXH(volatile uint16_t *addr)
mbotkinl 0:2cc6bb4d7fea 527 {
mbotkinl 0:2cc6bb4d7fea 528 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 529
mbotkinl 0:2cc6bb4d7fea 530 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
mbotkinl 0:2cc6bb4d7fea 531 __ASM volatile ("ldrexh %0, %1" : "=r" (result) : "Q" (*addr) );
mbotkinl 0:2cc6bb4d7fea 532 #else
mbotkinl 0:2cc6bb4d7fea 533 /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
mbotkinl 0:2cc6bb4d7fea 534 accepted by assembler. So has to use following less efficient pattern.
mbotkinl 0:2cc6bb4d7fea 535 */
mbotkinl 0:2cc6bb4d7fea 536 __ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
mbotkinl 0:2cc6bb4d7fea 537 #endif
mbotkinl 0:2cc6bb4d7fea 538 return(result);
mbotkinl 0:2cc6bb4d7fea 539 }
mbotkinl 0:2cc6bb4d7fea 540
mbotkinl 0:2cc6bb4d7fea 541
mbotkinl 0:2cc6bb4d7fea 542 /** \brief LDR Exclusive (32 bit)
mbotkinl 0:2cc6bb4d7fea 543
mbotkinl 0:2cc6bb4d7fea 544 This function performs a exclusive LDR command for 32 bit values.
mbotkinl 0:2cc6bb4d7fea 545
mbotkinl 0:2cc6bb4d7fea 546 \param [in] ptr Pointer to data
mbotkinl 0:2cc6bb4d7fea 547 \return value of type uint32_t at (*ptr)
mbotkinl 0:2cc6bb4d7fea 548 */
mbotkinl 0:2cc6bb4d7fea 549 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __LDREXW(volatile uint32_t *addr)
mbotkinl 0:2cc6bb4d7fea 550 {
mbotkinl 0:2cc6bb4d7fea 551 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 552
mbotkinl 0:2cc6bb4d7fea 553 __ASM volatile ("ldrex %0, %1" : "=r" (result) : "Q" (*addr) );
mbotkinl 0:2cc6bb4d7fea 554 return(result);
mbotkinl 0:2cc6bb4d7fea 555 }
mbotkinl 0:2cc6bb4d7fea 556
mbotkinl 0:2cc6bb4d7fea 557
mbotkinl 0:2cc6bb4d7fea 558 /** \brief STR Exclusive (8 bit)
mbotkinl 0:2cc6bb4d7fea 559
mbotkinl 0:2cc6bb4d7fea 560 This function performs a exclusive STR command for 8 bit values.
mbotkinl 0:2cc6bb4d7fea 561
mbotkinl 0:2cc6bb4d7fea 562 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 563 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 564 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 565 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 566 */
mbotkinl 0:2cc6bb4d7fea 567 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr)
mbotkinl 0:2cc6bb4d7fea 568 {
mbotkinl 0:2cc6bb4d7fea 569 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 570
mbotkinl 0:2cc6bb4d7fea 571 __ASM volatile ("strexb %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
mbotkinl 0:2cc6bb4d7fea 572 return(result);
mbotkinl 0:2cc6bb4d7fea 573 }
mbotkinl 0:2cc6bb4d7fea 574
mbotkinl 0:2cc6bb4d7fea 575
mbotkinl 0:2cc6bb4d7fea 576 /** \brief STR Exclusive (16 bit)
mbotkinl 0:2cc6bb4d7fea 577
mbotkinl 0:2cc6bb4d7fea 578 This function performs a exclusive STR command for 16 bit values.
mbotkinl 0:2cc6bb4d7fea 579
mbotkinl 0:2cc6bb4d7fea 580 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 581 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 582 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 583 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 584 */
mbotkinl 0:2cc6bb4d7fea 585 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr)
mbotkinl 0:2cc6bb4d7fea 586 {
mbotkinl 0:2cc6bb4d7fea 587 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 588
mbotkinl 0:2cc6bb4d7fea 589 __ASM volatile ("strexh %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
mbotkinl 0:2cc6bb4d7fea 590 return(result);
mbotkinl 0:2cc6bb4d7fea 591 }
mbotkinl 0:2cc6bb4d7fea 592
mbotkinl 0:2cc6bb4d7fea 593
mbotkinl 0:2cc6bb4d7fea 594 /** \brief STR Exclusive (32 bit)
mbotkinl 0:2cc6bb4d7fea 595
mbotkinl 0:2cc6bb4d7fea 596 This function performs a exclusive STR command for 32 bit values.
mbotkinl 0:2cc6bb4d7fea 597
mbotkinl 0:2cc6bb4d7fea 598 \param [in] value Value to store
mbotkinl 0:2cc6bb4d7fea 599 \param [in] ptr Pointer to location
mbotkinl 0:2cc6bb4d7fea 600 \return 0 Function succeeded
mbotkinl 0:2cc6bb4d7fea 601 \return 1 Function failed
mbotkinl 0:2cc6bb4d7fea 602 */
mbotkinl 0:2cc6bb4d7fea 603 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr)
mbotkinl 0:2cc6bb4d7fea 604 {
mbotkinl 0:2cc6bb4d7fea 605 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 606
mbotkinl 0:2cc6bb4d7fea 607 __ASM volatile ("strex %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
mbotkinl 0:2cc6bb4d7fea 608 return(result);
mbotkinl 0:2cc6bb4d7fea 609 }
mbotkinl 0:2cc6bb4d7fea 610
mbotkinl 0:2cc6bb4d7fea 611
mbotkinl 0:2cc6bb4d7fea 612 /** \brief Remove the exclusive lock
mbotkinl 0:2cc6bb4d7fea 613
mbotkinl 0:2cc6bb4d7fea 614 This function removes the exclusive lock which is created by LDREX.
mbotkinl 0:2cc6bb4d7fea 615
mbotkinl 0:2cc6bb4d7fea 616 */
mbotkinl 0:2cc6bb4d7fea 617 __attribute__( ( always_inline ) ) __STATIC_INLINE void __CLREX(void)
mbotkinl 0:2cc6bb4d7fea 618 {
mbotkinl 0:2cc6bb4d7fea 619 __ASM volatile ("clrex" ::: "memory");
mbotkinl 0:2cc6bb4d7fea 620 }
mbotkinl 0:2cc6bb4d7fea 621
mbotkinl 0:2cc6bb4d7fea 622
mbotkinl 0:2cc6bb4d7fea 623 /** \brief Signed Saturate
mbotkinl 0:2cc6bb4d7fea 624
mbotkinl 0:2cc6bb4d7fea 625 This function saturates a signed value.
mbotkinl 0:2cc6bb4d7fea 626
mbotkinl 0:2cc6bb4d7fea 627 \param [in] value Value to be saturated
mbotkinl 0:2cc6bb4d7fea 628 \param [in] sat Bit position to saturate to (1..32)
mbotkinl 0:2cc6bb4d7fea 629 \return Saturated value
mbotkinl 0:2cc6bb4d7fea 630 */
mbotkinl 0:2cc6bb4d7fea 631 #define __SSAT(ARG1,ARG2) \
mbotkinl 0:2cc6bb4d7fea 632 ({ \
mbotkinl 0:2cc6bb4d7fea 633 uint32_t __RES, __ARG1 = (ARG1); \
mbotkinl 0:2cc6bb4d7fea 634 __ASM ("ssat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
mbotkinl 0:2cc6bb4d7fea 635 __RES; \
mbotkinl 0:2cc6bb4d7fea 636 })
mbotkinl 0:2cc6bb4d7fea 637
mbotkinl 0:2cc6bb4d7fea 638
mbotkinl 0:2cc6bb4d7fea 639 /** \brief Unsigned Saturate
mbotkinl 0:2cc6bb4d7fea 640
mbotkinl 0:2cc6bb4d7fea 641 This function saturates an unsigned value.
mbotkinl 0:2cc6bb4d7fea 642
mbotkinl 0:2cc6bb4d7fea 643 \param [in] value Value to be saturated
mbotkinl 0:2cc6bb4d7fea 644 \param [in] sat Bit position to saturate to (0..31)
mbotkinl 0:2cc6bb4d7fea 645 \return Saturated value
mbotkinl 0:2cc6bb4d7fea 646 */
mbotkinl 0:2cc6bb4d7fea 647 #define __USAT(ARG1,ARG2) \
mbotkinl 0:2cc6bb4d7fea 648 ({ \
mbotkinl 0:2cc6bb4d7fea 649 uint32_t __RES, __ARG1 = (ARG1); \
mbotkinl 0:2cc6bb4d7fea 650 __ASM ("usat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
mbotkinl 0:2cc6bb4d7fea 651 __RES; \
mbotkinl 0:2cc6bb4d7fea 652 })
mbotkinl 0:2cc6bb4d7fea 653
mbotkinl 0:2cc6bb4d7fea 654
mbotkinl 0:2cc6bb4d7fea 655 /** \brief Count leading zeros
mbotkinl 0:2cc6bb4d7fea 656
mbotkinl 0:2cc6bb4d7fea 657 This function counts the number of leading zeros of a data value.
mbotkinl 0:2cc6bb4d7fea 658
mbotkinl 0:2cc6bb4d7fea 659 \param [in] value Value to count the leading zeros
mbotkinl 0:2cc6bb4d7fea 660 \return number of leading zeros in value
mbotkinl 0:2cc6bb4d7fea 661 */
mbotkinl 0:2cc6bb4d7fea 662 __attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __CLZ(uint32_t value)
mbotkinl 0:2cc6bb4d7fea 663 {
mbotkinl 0:2cc6bb4d7fea 664 uint32_t result;
mbotkinl 0:2cc6bb4d7fea 665
mbotkinl 0:2cc6bb4d7fea 666 __ASM volatile ("clz %0, %1" : "=r" (result) : "r" (value) );
mbotkinl 0:2cc6bb4d7fea 667 return(result);
mbotkinl 0:2cc6bb4d7fea 668 }
mbotkinl 0:2cc6bb4d7fea 669
mbotkinl 0:2cc6bb4d7fea 670 #endif /* (__CORTEX_M >= 0x03) */
mbotkinl 0:2cc6bb4d7fea 671
mbotkinl 0:2cc6bb4d7fea 672
mbotkinl 0:2cc6bb4d7fea 673
mbotkinl 0:2cc6bb4d7fea 674
mbotkinl 0:2cc6bb4d7fea 675 #elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
mbotkinl 0:2cc6bb4d7fea 676 /* TASKING carm specific functions */
mbotkinl 0:2cc6bb4d7fea 677
mbotkinl 0:2cc6bb4d7fea 678 /*
mbotkinl 0:2cc6bb4d7fea 679 * The CMSIS functions have been implemented as intrinsics in the compiler.
mbotkinl 0:2cc6bb4d7fea 680 * Please use "carm -?i" to get an up to date list of all intrinsics,
mbotkinl 0:2cc6bb4d7fea 681 * Including the CMSIS ones.
mbotkinl 0:2cc6bb4d7fea 682 */
mbotkinl 0:2cc6bb4d7fea 683
mbotkinl 0:2cc6bb4d7fea 684 #endif
mbotkinl 0:2cc6bb4d7fea 685
mbotkinl 0:2cc6bb4d7fea 686 /*@}*/ /* end of group CMSIS_Core_InstructionInterface */
mbotkinl 0:2cc6bb4d7fea 687
mbotkinl 0:2cc6bb4d7fea 688 #endif /* __CORE_CMINSTR_H */