Jolyon Hill / mbed-dev

Changes to support running on smaller memory LPC device LPC1764

Fork of mbed-dev by mbed official

targets/cmsis/core_cmFunc.h@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
19:112740acecfa
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**************************************************************************//**
bogdanm 0:9b334a45a8ff 2 * @file core_cmFunc.h
bogdanm 0:9b334a45a8ff 3 * @brief CMSIS Cortex-M Core Function Access Header File
bogdanm 0:9b334a45a8ff 4 * @version V3.20
bogdanm 0:9b334a45a8ff 5 * @date 25. February 2013
bogdanm 0:9b334a45a8ff 6 *
bogdanm 0:9b334a45a8ff 7 * @note
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 ******************************************************************************/
bogdanm 0:9b334a45a8ff 10 /* Copyright (c) 2009 - 2013 ARM LIMITED
bogdanm 0:9b334a45a8ff 11
bogdanm 0:9b334a45a8ff 12 All rights reserved.
bogdanm 0:9b334a45a8ff 13 Redistribution and use in source and binary forms, with or without
bogdanm 0:9b334a45a8ff 14 modification, are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 15 - Redistributions of source code must retain the above copyright
bogdanm 0:9b334a45a8ff 16 notice, this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 17 - Redistributions in binary form must reproduce the above copyright
bogdanm 0:9b334a45a8ff 18 notice, this list of conditions and the following disclaimer in the
bogdanm 0:9b334a45a8ff 19 documentation and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 20 - Neither the name of ARM nor the names of its contributors may be used
bogdanm 0:9b334a45a8ff 21 to endorse or promote products derived from this software without
bogdanm 0:9b334a45a8ff 22 specific prior written permission.
bogdanm 0:9b334a45a8ff 23 *
bogdanm 0:9b334a45a8ff 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
bogdanm 0:9b334a45a8ff 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
bogdanm 0:9b334a45a8ff 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
bogdanm 0:9b334a45a8ff 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
bogdanm 0:9b334a45a8ff 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
bogdanm 0:9b334a45a8ff 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
bogdanm 0:9b334a45a8ff 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
bogdanm 0:9b334a45a8ff 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
bogdanm 0:9b334a45a8ff 34 POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 35 ---------------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38 #ifndef __CORE_CMFUNC_H
bogdanm 0:9b334a45a8ff 39 #define __CORE_CMFUNC_H
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 /* ########################### Core Function Access ########################### */
bogdanm 0:9b334a45a8ff 43 /** \ingroup CMSIS_Core_FunctionInterface
bogdanm 0:9b334a45a8ff 44 \defgroup CMSIS_Core_RegAccFunctions CMSIS Core Register Access Functions
bogdanm 0:9b334a45a8ff 45 @{
bogdanm 0:9b334a45a8ff 46 */
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
bogdanm 0:9b334a45a8ff 49 /* ARM armcc specific functions */
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 #if (__ARMCC_VERSION < 400677)
bogdanm 0:9b334a45a8ff 52 #error "Please use ARM Compiler Toolchain V4.0.677 or later!"
bogdanm 0:9b334a45a8ff 53 #endif
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 /* intrinsic void __enable_irq(); */
bogdanm 0:9b334a45a8ff 56 /* intrinsic void __disable_irq(); */
bogdanm 0:9b334a45a8ff 57
bogdanm 0:9b334a45a8ff 58 /** \brief Get Control Register
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 This function returns the content of the Control Register.
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 \return Control Register value
bogdanm 0:9b334a45a8ff 63 */
bogdanm 0:9b334a45a8ff 64 __STATIC_INLINE uint32_t __get_CONTROL(void)
bogdanm 0:9b334a45a8ff 65 {
bogdanm 0:9b334a45a8ff 66 register uint32_t __regControl __ASM("control");
bogdanm 0:9b334a45a8ff 67 return(__regControl);
bogdanm 0:9b334a45a8ff 68 }
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71 /** \brief Set Control Register
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 This function writes the given value to the Control Register.
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 \param [in] control Control Register value to set
bogdanm 0:9b334a45a8ff 76 */
bogdanm 0:9b334a45a8ff 77 __STATIC_INLINE void __set_CONTROL(uint32_t control)
bogdanm 0:9b334a45a8ff 78 {
bogdanm 0:9b334a45a8ff 79 register uint32_t __regControl __ASM("control");
bogdanm 0:9b334a45a8ff 80 __regControl = control;
bogdanm 0:9b334a45a8ff 81 }
bogdanm 0:9b334a45a8ff 82
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 /** \brief Get IPSR Register
bogdanm 0:9b334a45a8ff 85
bogdanm 0:9b334a45a8ff 86 This function returns the content of the IPSR Register.
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 \return IPSR Register value
bogdanm 0:9b334a45a8ff 89 */
bogdanm 0:9b334a45a8ff 90 __STATIC_INLINE uint32_t __get_IPSR(void)
bogdanm 0:9b334a45a8ff 91 {
bogdanm 0:9b334a45a8ff 92 register uint32_t __regIPSR __ASM("ipsr");
bogdanm 0:9b334a45a8ff 93 return(__regIPSR);
bogdanm 0:9b334a45a8ff 94 }
bogdanm 0:9b334a45a8ff 95
bogdanm 0:9b334a45a8ff 96
bogdanm 0:9b334a45a8ff 97 /** \brief Get APSR Register
bogdanm 0:9b334a45a8ff 98
bogdanm 0:9b334a45a8ff 99 This function returns the content of the APSR Register.
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 \return APSR Register value
bogdanm 0:9b334a45a8ff 102 */
bogdanm 0:9b334a45a8ff 103 __STATIC_INLINE uint32_t __get_APSR(void)
bogdanm 0:9b334a45a8ff 104 {
bogdanm 0:9b334a45a8ff 105 register uint32_t __regAPSR __ASM("apsr");
bogdanm 0:9b334a45a8ff 106 return(__regAPSR);
bogdanm 0:9b334a45a8ff 107 }
bogdanm 0:9b334a45a8ff 108
bogdanm 0:9b334a45a8ff 109
bogdanm 0:9b334a45a8ff 110 /** \brief Get xPSR Register
bogdanm 0:9b334a45a8ff 111
bogdanm 0:9b334a45a8ff 112 This function returns the content of the xPSR Register.
bogdanm 0:9b334a45a8ff 113
bogdanm 0:9b334a45a8ff 114 \return xPSR Register value
bogdanm 0:9b334a45a8ff 115 */
bogdanm 0:9b334a45a8ff 116 __STATIC_INLINE uint32_t __get_xPSR(void)
bogdanm 0:9b334a45a8ff 117 {
bogdanm 0:9b334a45a8ff 118 register uint32_t __regXPSR __ASM("xpsr");
bogdanm 0:9b334a45a8ff 119 return(__regXPSR);
bogdanm 0:9b334a45a8ff 120 }
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123 /** \brief Get Process Stack Pointer
bogdanm 0:9b334a45a8ff 124
bogdanm 0:9b334a45a8ff 125 This function returns the current value of the Process Stack Pointer (PSP).
bogdanm 0:9b334a45a8ff 126
bogdanm 0:9b334a45a8ff 127 \return PSP Register value
bogdanm 0:9b334a45a8ff 128 */
bogdanm 0:9b334a45a8ff 129 __STATIC_INLINE uint32_t __get_PSP(void)
bogdanm 0:9b334a45a8ff 130 {
bogdanm 0:9b334a45a8ff 131 register uint32_t __regProcessStackPointer __ASM("psp");
bogdanm 0:9b334a45a8ff 132 return(__regProcessStackPointer);
bogdanm 0:9b334a45a8ff 133 }
bogdanm 0:9b334a45a8ff 134
bogdanm 0:9b334a45a8ff 135
bogdanm 0:9b334a45a8ff 136 /** \brief Set Process Stack Pointer
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 This function assigns the given value to the Process Stack Pointer (PSP).
bogdanm 0:9b334a45a8ff 139
bogdanm 0:9b334a45a8ff 140 \param [in] topOfProcStack Process Stack Pointer value to set
bogdanm 0:9b334a45a8ff 141 */
bogdanm 0:9b334a45a8ff 142 __STATIC_INLINE void __set_PSP(uint32_t topOfProcStack)
bogdanm 0:9b334a45a8ff 143 {
bogdanm 0:9b334a45a8ff 144 register uint32_t __regProcessStackPointer __ASM("psp");
bogdanm 0:9b334a45a8ff 145 __regProcessStackPointer = topOfProcStack;
bogdanm 0:9b334a45a8ff 146 }
bogdanm 0:9b334a45a8ff 147
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 /** \brief Get Main Stack Pointer
bogdanm 0:9b334a45a8ff 150
bogdanm 0:9b334a45a8ff 151 This function returns the current value of the Main Stack Pointer (MSP).
bogdanm 0:9b334a45a8ff 152
bogdanm 0:9b334a45a8ff 153 \return MSP Register value
bogdanm 0:9b334a45a8ff 154 */
bogdanm 0:9b334a45a8ff 155 __STATIC_INLINE uint32_t __get_MSP(void)
bogdanm 0:9b334a45a8ff 156 {
bogdanm 0:9b334a45a8ff 157 register uint32_t __regMainStackPointer __ASM("msp");
bogdanm 0:9b334a45a8ff 158 return(__regMainStackPointer);
bogdanm 0:9b334a45a8ff 159 }
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161
bogdanm 0:9b334a45a8ff 162 /** \brief Set Main Stack Pointer
bogdanm 0:9b334a45a8ff 163
bogdanm 0:9b334a45a8ff 164 This function assigns the given value to the Main Stack Pointer (MSP).
bogdanm 0:9b334a45a8ff 165
bogdanm 0:9b334a45a8ff 166 \param [in] topOfMainStack Main Stack Pointer value to set
bogdanm 0:9b334a45a8ff 167 */
bogdanm 0:9b334a45a8ff 168 __STATIC_INLINE void __set_MSP(uint32_t topOfMainStack)
bogdanm 0:9b334a45a8ff 169 {
bogdanm 0:9b334a45a8ff 170 register uint32_t __regMainStackPointer __ASM("msp");
bogdanm 0:9b334a45a8ff 171 __regMainStackPointer = topOfMainStack;
bogdanm 0:9b334a45a8ff 172 }
bogdanm 0:9b334a45a8ff 173
bogdanm 0:9b334a45a8ff 174
bogdanm 0:9b334a45a8ff 175 /** \brief Get Priority Mask
bogdanm 0:9b334a45a8ff 176
bogdanm 0:9b334a45a8ff 177 This function returns the current state of the priority mask bit from the Priority Mask Register.
bogdanm 0:9b334a45a8ff 178
bogdanm 0:9b334a45a8ff 179 \return Priority Mask value
bogdanm 0:9b334a45a8ff 180 */
bogdanm 0:9b334a45a8ff 181 __STATIC_INLINE uint32_t __get_PRIMASK(void)
bogdanm 0:9b334a45a8ff 182 {
bogdanm 0:9b334a45a8ff 183 register uint32_t __regPriMask __ASM("primask");
bogdanm 0:9b334a45a8ff 184 return(__regPriMask);
bogdanm 0:9b334a45a8ff 185 }
bogdanm 0:9b334a45a8ff 186
bogdanm 0:9b334a45a8ff 187
bogdanm 0:9b334a45a8ff 188 /** \brief Set Priority Mask
bogdanm 0:9b334a45a8ff 189
bogdanm 0:9b334a45a8ff 190 This function assigns the given value to the Priority Mask Register.
bogdanm 0:9b334a45a8ff 191
bogdanm 0:9b334a45a8ff 192 \param [in] priMask Priority Mask
bogdanm 0:9b334a45a8ff 193 */
bogdanm 0:9b334a45a8ff 194 __STATIC_INLINE void __set_PRIMASK(uint32_t priMask)
bogdanm 0:9b334a45a8ff 195 {
bogdanm 0:9b334a45a8ff 196 register uint32_t __regPriMask __ASM("primask");
bogdanm 0:9b334a45a8ff 197 __regPriMask = (priMask);
bogdanm 0:9b334a45a8ff 198 }
bogdanm 0:9b334a45a8ff 199
bogdanm 0:9b334a45a8ff 200
bogdanm 0:9b334a45a8ff 201 #if (__CORTEX_M >= 0x03)
bogdanm 0:9b334a45a8ff 202
bogdanm 0:9b334a45a8ff 203 /** \brief Enable FIQ
bogdanm 0:9b334a45a8ff 204
bogdanm 0:9b334a45a8ff 205 This function enables FIQ interrupts by clearing the F-bit in the CPSR.
bogdanm 0:9b334a45a8ff 206 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 207 */
bogdanm 0:9b334a45a8ff 208 #define __enable_fault_irq __enable_fiq
bogdanm 0:9b334a45a8ff 209
bogdanm 0:9b334a45a8ff 210
bogdanm 0:9b334a45a8ff 211 /** \brief Disable FIQ
bogdanm 0:9b334a45a8ff 212
bogdanm 0:9b334a45a8ff 213 This function disables FIQ interrupts by setting the F-bit in the CPSR.
bogdanm 0:9b334a45a8ff 214 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 215 */
bogdanm 0:9b334a45a8ff 216 #define __disable_fault_irq __disable_fiq
bogdanm 0:9b334a45a8ff 217
bogdanm 0:9b334a45a8ff 218
bogdanm 0:9b334a45a8ff 219 /** \brief Get Base Priority
bogdanm 0:9b334a45a8ff 220
bogdanm 0:9b334a45a8ff 221 This function returns the current value of the Base Priority register.
bogdanm 0:9b334a45a8ff 222
bogdanm 0:9b334a45a8ff 223 \return Base Priority register value
bogdanm 0:9b334a45a8ff 224 */
bogdanm 0:9b334a45a8ff 225 __STATIC_INLINE uint32_t __get_BASEPRI(void)
bogdanm 0:9b334a45a8ff 226 {
bogdanm 0:9b334a45a8ff 227 register uint32_t __regBasePri __ASM("basepri");
bogdanm 0:9b334a45a8ff 228 return(__regBasePri);
bogdanm 0:9b334a45a8ff 229 }
bogdanm 0:9b334a45a8ff 230
bogdanm 0:9b334a45a8ff 231
bogdanm 0:9b334a45a8ff 232 /** \brief Set Base Priority
bogdanm 0:9b334a45a8ff 233
bogdanm 0:9b334a45a8ff 234 This function assigns the given value to the Base Priority register.
bogdanm 0:9b334a45a8ff 235
bogdanm 0:9b334a45a8ff 236 \param [in] basePri Base Priority value to set
bogdanm 0:9b334a45a8ff 237 */
bogdanm 0:9b334a45a8ff 238 __STATIC_INLINE void __set_BASEPRI(uint32_t basePri)
bogdanm 0:9b334a45a8ff 239 {
bogdanm 0:9b334a45a8ff 240 register uint32_t __regBasePri __ASM("basepri");
bogdanm 0:9b334a45a8ff 241 __regBasePri = (basePri & 0xff);
bogdanm 0:9b334a45a8ff 242 }
bogdanm 0:9b334a45a8ff 243
bogdanm 0:9b334a45a8ff 244
bogdanm 0:9b334a45a8ff 245 /** \brief Get Fault Mask
bogdanm 0:9b334a45a8ff 246
bogdanm 0:9b334a45a8ff 247 This function returns the current value of the Fault Mask register.
bogdanm 0:9b334a45a8ff 248
bogdanm 0:9b334a45a8ff 249 \return Fault Mask register value
bogdanm 0:9b334a45a8ff 250 */
bogdanm 0:9b334a45a8ff 251 __STATIC_INLINE uint32_t __get_FAULTMASK(void)
bogdanm 0:9b334a45a8ff 252 {
bogdanm 0:9b334a45a8ff 253 register uint32_t __regFaultMask __ASM("faultmask");
bogdanm 0:9b334a45a8ff 254 return(__regFaultMask);
bogdanm 0:9b334a45a8ff 255 }
bogdanm 0:9b334a45a8ff 256
bogdanm 0:9b334a45a8ff 257
bogdanm 0:9b334a45a8ff 258 /** \brief Set Fault Mask
bogdanm 0:9b334a45a8ff 259
bogdanm 0:9b334a45a8ff 260 This function assigns the given value to the Fault Mask register.
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 \param [in] faultMask Fault Mask value to set
bogdanm 0:9b334a45a8ff 263 */
bogdanm 0:9b334a45a8ff 264 __STATIC_INLINE void __set_FAULTMASK(uint32_t faultMask)
bogdanm 0:9b334a45a8ff 265 {
bogdanm 0:9b334a45a8ff 266 register uint32_t __regFaultMask __ASM("faultmask");
bogdanm 0:9b334a45a8ff 267 __regFaultMask = (faultMask & (uint32_t)1);
bogdanm 0:9b334a45a8ff 268 }
bogdanm 0:9b334a45a8ff 269
bogdanm 0:9b334a45a8ff 270 #endif /* (__CORTEX_M >= 0x03) */
bogdanm 0:9b334a45a8ff 271
bogdanm 0:9b334a45a8ff 272
bogdanm 0:9b334a45a8ff 273 #if (__CORTEX_M == 0x04)
bogdanm 0:9b334a45a8ff 274
bogdanm 0:9b334a45a8ff 275 /** \brief Get FPSCR
bogdanm 0:9b334a45a8ff 276
bogdanm 0:9b334a45a8ff 277 This function returns the current value of the Floating Point Status/Control register.
bogdanm 0:9b334a45a8ff 278
bogdanm 0:9b334a45a8ff 279 \return Floating Point Status/Control register value
bogdanm 0:9b334a45a8ff 280 */
bogdanm 0:9b334a45a8ff 281 __STATIC_INLINE uint32_t __get_FPSCR(void)
bogdanm 0:9b334a45a8ff 282 {
bogdanm 0:9b334a45a8ff 283 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
bogdanm 0:9b334a45a8ff 284 register uint32_t __regfpscr __ASM("fpscr");
bogdanm 0:9b334a45a8ff 285 return(__regfpscr);
bogdanm 0:9b334a45a8ff 286 #else
bogdanm 0:9b334a45a8ff 287 return(0);
bogdanm 0:9b334a45a8ff 288 #endif
bogdanm 0:9b334a45a8ff 289 }
bogdanm 0:9b334a45a8ff 290
bogdanm 0:9b334a45a8ff 291
bogdanm 0:9b334a45a8ff 292 /** \brief Set FPSCR
bogdanm 0:9b334a45a8ff 293
bogdanm 0:9b334a45a8ff 294 This function assigns the given value to the Floating Point Status/Control register.
bogdanm 0:9b334a45a8ff 295
bogdanm 0:9b334a45a8ff 296 \param [in] fpscr Floating Point Status/Control value to set
bogdanm 0:9b334a45a8ff 297 */
bogdanm 0:9b334a45a8ff 298 __STATIC_INLINE void __set_FPSCR(uint32_t fpscr)
bogdanm 0:9b334a45a8ff 299 {
bogdanm 0:9b334a45a8ff 300 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
bogdanm 0:9b334a45a8ff 301 register uint32_t __regfpscr __ASM("fpscr");
bogdanm 0:9b334a45a8ff 302 __regfpscr = (fpscr);
bogdanm 0:9b334a45a8ff 303 #endif
bogdanm 0:9b334a45a8ff 304 }
bogdanm 0:9b334a45a8ff 305
bogdanm 0:9b334a45a8ff 306 #endif /* (__CORTEX_M == 0x04) */
bogdanm 0:9b334a45a8ff 307
bogdanm 0:9b334a45a8ff 308
bogdanm 0:9b334a45a8ff 309 #elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
bogdanm 0:9b334a45a8ff 310 /* IAR iccarm specific functions */
bogdanm 0:9b334a45a8ff 311
bogdanm 0:9b334a45a8ff 312 #include <cmsis_iar.h>
bogdanm 0:9b334a45a8ff 313
bogdanm 0:9b334a45a8ff 314
bogdanm 0:9b334a45a8ff 315 #elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
bogdanm 0:9b334a45a8ff 316 /* TI CCS specific functions */
bogdanm 0:9b334a45a8ff 317
bogdanm 0:9b334a45a8ff 318 #include <cmsis_ccs.h>
bogdanm 0:9b334a45a8ff 319
bogdanm 0:9b334a45a8ff 320
bogdanm 0:9b334a45a8ff 321 #elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
bogdanm 0:9b334a45a8ff 322 /* GNU gcc specific functions */
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 /** \brief Enable IRQ Interrupts
bogdanm 0:9b334a45a8ff 325
bogdanm 0:9b334a45a8ff 326 This function enables IRQ interrupts by clearing the I-bit in the CPSR.
bogdanm 0:9b334a45a8ff 327 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 328 */
bogdanm 0:9b334a45a8ff 329 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_irq(void)
bogdanm 0:9b334a45a8ff 330 {
bogdanm 0:9b334a45a8ff 331 __ASM volatile ("cpsie i" : : : "memory");
bogdanm 0:9b334a45a8ff 332 }
bogdanm 0:9b334a45a8ff 333
bogdanm 0:9b334a45a8ff 334
bogdanm 0:9b334a45a8ff 335 /** \brief Disable IRQ Interrupts
bogdanm 0:9b334a45a8ff 336
bogdanm 0:9b334a45a8ff 337 This function disables IRQ interrupts by setting the I-bit in the CPSR.
bogdanm 0:9b334a45a8ff 338 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 339 */
bogdanm 0:9b334a45a8ff 340 __attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_irq(void)
bogdanm 0:9b334a45a8ff 341 {
bogdanm 0:9b334a45a8ff 342 __ASM volatile ("cpsid i" : : : "memory");
bogdanm 0:9b334a45a8ff 343 }
bogdanm 0:9b334a45a8ff 344
bogdanm 0:9b334a45a8ff 345
bogdanm 0:9b334a45a8ff 346 /** \brief Get Control Register
bogdanm 0:9b334a45a8ff 347
bogdanm 0:9b334a45a8ff 348 This function returns the content of the Control Register.
bogdanm 0:9b334a45a8ff 349
bogdanm 0:9b334a45a8ff 350 \return Control Register value
bogdanm 0:9b334a45a8ff 351 */
bogdanm 0:9b334a45a8ff 352 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CONTROL(void)
bogdanm 0:9b334a45a8ff 353 {
bogdanm 0:9b334a45a8ff 354 uint32_t result;
bogdanm 0:9b334a45a8ff 355
bogdanm 0:9b334a45a8ff 356 __ASM volatile ("MRS %0, control" : "=r" (result) );
bogdanm 0:9b334a45a8ff 357 return(result);
bogdanm 0:9b334a45a8ff 358 }
bogdanm 0:9b334a45a8ff 359
bogdanm 0:9b334a45a8ff 360
bogdanm 0:9b334a45a8ff 361 /** \brief Set Control Register
bogdanm 0:9b334a45a8ff 362
bogdanm 0:9b334a45a8ff 363 This function writes the given value to the Control Register.
bogdanm 0:9b334a45a8ff 364
bogdanm 0:9b334a45a8ff 365 \param [in] control Control Register value to set
bogdanm 0:9b334a45a8ff 366 */
bogdanm 0:9b334a45a8ff 367 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_CONTROL(uint32_t control)
bogdanm 0:9b334a45a8ff 368 {
bogdanm 0:9b334a45a8ff 369 __ASM volatile ("MSR control, %0" : : "r" (control) : "memory");
bogdanm 0:9b334a45a8ff 370 }
bogdanm 0:9b334a45a8ff 371
bogdanm 0:9b334a45a8ff 372
bogdanm 0:9b334a45a8ff 373 /** \brief Get IPSR Register
bogdanm 0:9b334a45a8ff 374
bogdanm 0:9b334a45a8ff 375 This function returns the content of the IPSR Register.
bogdanm 0:9b334a45a8ff 376
bogdanm 0:9b334a45a8ff 377 \return IPSR Register value
bogdanm 0:9b334a45a8ff 378 */
bogdanm 0:9b334a45a8ff 379 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_IPSR(void)
bogdanm 0:9b334a45a8ff 380 {
bogdanm 0:9b334a45a8ff 381 uint32_t result;
bogdanm 0:9b334a45a8ff 382
bogdanm 0:9b334a45a8ff 383 __ASM volatile ("MRS %0, ipsr" : "=r" (result) );
bogdanm 0:9b334a45a8ff 384 return(result);
bogdanm 0:9b334a45a8ff 385 }
bogdanm 0:9b334a45a8ff 386
bogdanm 0:9b334a45a8ff 387
bogdanm 0:9b334a45a8ff 388 /** \brief Get APSR Register
bogdanm 0:9b334a45a8ff 389
bogdanm 0:9b334a45a8ff 390 This function returns the content of the APSR Register.
bogdanm 0:9b334a45a8ff 391
bogdanm 0:9b334a45a8ff 392 \return APSR Register value
bogdanm 0:9b334a45a8ff 393 */
bogdanm 0:9b334a45a8ff 394 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_APSR(void)
bogdanm 0:9b334a45a8ff 395 {
bogdanm 0:9b334a45a8ff 396 uint32_t result;
bogdanm 0:9b334a45a8ff 397
bogdanm 0:9b334a45a8ff 398 __ASM volatile ("MRS %0, apsr" : "=r" (result) );
bogdanm 0:9b334a45a8ff 399 return(result);
bogdanm 0:9b334a45a8ff 400 }
bogdanm 0:9b334a45a8ff 401
bogdanm 0:9b334a45a8ff 402
bogdanm 0:9b334a45a8ff 403 /** \brief Get xPSR Register
bogdanm 0:9b334a45a8ff 404
bogdanm 0:9b334a45a8ff 405 This function returns the content of the xPSR Register.
bogdanm 0:9b334a45a8ff 406
bogdanm 0:9b334a45a8ff 407 \return xPSR Register value
bogdanm 0:9b334a45a8ff 408 */
bogdanm 0:9b334a45a8ff 409 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_xPSR(void)
bogdanm 0:9b334a45a8ff 410 {
bogdanm 0:9b334a45a8ff 411 uint32_t result;
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 __ASM volatile ("MRS %0, xpsr" : "=r" (result) );
bogdanm 0:9b334a45a8ff 414 return(result);
bogdanm 0:9b334a45a8ff 415 }
bogdanm 0:9b334a45a8ff 416
bogdanm 0:9b334a45a8ff 417
bogdanm 0:9b334a45a8ff 418 /** \brief Get Process Stack Pointer
bogdanm 0:9b334a45a8ff 419
bogdanm 0:9b334a45a8ff 420 This function returns the current value of the Process Stack Pointer (PSP).
bogdanm 0:9b334a45a8ff 421
bogdanm 0:9b334a45a8ff 422 \return PSP Register value
bogdanm 0:9b334a45a8ff 423 */
bogdanm 0:9b334a45a8ff 424 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_PSP(void)
bogdanm 0:9b334a45a8ff 425 {
bogdanm 0:9b334a45a8ff 426 register uint32_t result;
bogdanm 0:9b334a45a8ff 427
bogdanm 0:9b334a45a8ff 428 __ASM volatile ("MRS %0, psp\n" : "=r" (result) );
bogdanm 0:9b334a45a8ff 429 return(result);
bogdanm 0:9b334a45a8ff 430 }
bogdanm 0:9b334a45a8ff 431
bogdanm 0:9b334a45a8ff 432
bogdanm 0:9b334a45a8ff 433 /** \brief Set Process Stack Pointer
bogdanm 0:9b334a45a8ff 434
bogdanm 0:9b334a45a8ff 435 This function assigns the given value to the Process Stack Pointer (PSP).
bogdanm 0:9b334a45a8ff 436
bogdanm 0:9b334a45a8ff 437 \param [in] topOfProcStack Process Stack Pointer value to set
bogdanm 0:9b334a45a8ff 438 */
bogdanm 0:9b334a45a8ff 439 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_PSP(uint32_t topOfProcStack)
bogdanm 0:9b334a45a8ff 440 {
bogdanm 0:9b334a45a8ff 441 __ASM volatile ("MSR psp, %0\n" : : "r" (topOfProcStack) : "sp");
bogdanm 0:9b334a45a8ff 442 }
bogdanm 0:9b334a45a8ff 443
bogdanm 0:9b334a45a8ff 444
bogdanm 0:9b334a45a8ff 445 /** \brief Get Main Stack Pointer
bogdanm 0:9b334a45a8ff 446
bogdanm 0:9b334a45a8ff 447 This function returns the current value of the Main Stack Pointer (MSP).
bogdanm 0:9b334a45a8ff 448
bogdanm 0:9b334a45a8ff 449 \return MSP Register value
bogdanm 0:9b334a45a8ff 450 */
bogdanm 0:9b334a45a8ff 451 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_MSP(void)
bogdanm 0:9b334a45a8ff 452 {
bogdanm 0:9b334a45a8ff 453 register uint32_t result;
bogdanm 0:9b334a45a8ff 454
bogdanm 0:9b334a45a8ff 455 __ASM volatile ("MRS %0, msp\n" : "=r" (result) );
bogdanm 0:9b334a45a8ff 456 return(result);
bogdanm 0:9b334a45a8ff 457 }
bogdanm 0:9b334a45a8ff 458
bogdanm 0:9b334a45a8ff 459
bogdanm 0:9b334a45a8ff 460 /** \brief Set Main Stack Pointer
bogdanm 0:9b334a45a8ff 461
bogdanm 0:9b334a45a8ff 462 This function assigns the given value to the Main Stack Pointer (MSP).
bogdanm 0:9b334a45a8ff 463
bogdanm 0:9b334a45a8ff 464 \param [in] topOfMainStack Main Stack Pointer value to set
bogdanm 0:9b334a45a8ff 465 */
bogdanm 0:9b334a45a8ff 466 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_MSP(uint32_t topOfMainStack)
bogdanm 0:9b334a45a8ff 467 {
bogdanm 0:9b334a45a8ff 468 __ASM volatile ("MSR msp, %0\n" : : "r" (topOfMainStack) : "sp");
bogdanm 0:9b334a45a8ff 469 }
bogdanm 0:9b334a45a8ff 470
bogdanm 0:9b334a45a8ff 471
bogdanm 0:9b334a45a8ff 472 /** \brief Get Priority Mask
bogdanm 0:9b334a45a8ff 473
bogdanm 0:9b334a45a8ff 474 This function returns the current state of the priority mask bit from the Priority Mask Register.
bogdanm 0:9b334a45a8ff 475
bogdanm 0:9b334a45a8ff 476 \return Priority Mask value
bogdanm 0:9b334a45a8ff 477 */
bogdanm 0:9b334a45a8ff 478 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_PRIMASK(void)
bogdanm 0:9b334a45a8ff 479 {
bogdanm 0:9b334a45a8ff 480 uint32_t result;
bogdanm 0:9b334a45a8ff 481
bogdanm 0:9b334a45a8ff 482 __ASM volatile ("MRS %0, primask" : "=r" (result) );
bogdanm 0:9b334a45a8ff 483 return(result);
bogdanm 0:9b334a45a8ff 484 }
bogdanm 0:9b334a45a8ff 485
bogdanm 0:9b334a45a8ff 486
bogdanm 0:9b334a45a8ff 487 /** \brief Set Priority Mask
bogdanm 0:9b334a45a8ff 488
bogdanm 0:9b334a45a8ff 489 This function assigns the given value to the Priority Mask Register.
bogdanm 0:9b334a45a8ff 490
bogdanm 0:9b334a45a8ff 491 \param [in] priMask Priority Mask
bogdanm 0:9b334a45a8ff 492 */
bogdanm 0:9b334a45a8ff 493 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_PRIMASK(uint32_t priMask)
bogdanm 0:9b334a45a8ff 494 {
bogdanm 0:9b334a45a8ff 495 __ASM volatile ("MSR primask, %0" : : "r" (priMask) : "memory");
bogdanm 0:9b334a45a8ff 496 }
bogdanm 0:9b334a45a8ff 497
bogdanm 0:9b334a45a8ff 498
bogdanm 0:9b334a45a8ff 499 #if (__CORTEX_M >= 0x03)
bogdanm 0:9b334a45a8ff 500
bogdanm 0:9b334a45a8ff 501 /** \brief Enable FIQ
bogdanm 0:9b334a45a8ff 502
bogdanm 0:9b334a45a8ff 503 This function enables FIQ interrupts by clearing the F-bit in the CPSR.
bogdanm 0:9b334a45a8ff 504 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 505 */
bogdanm 0:9b334a45a8ff 506 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_fault_irq(void)
bogdanm 0:9b334a45a8ff 507 {
bogdanm 0:9b334a45a8ff 508 __ASM volatile ("cpsie f" : : : "memory");
bogdanm 0:9b334a45a8ff 509 }
bogdanm 0:9b334a45a8ff 510
bogdanm 0:9b334a45a8ff 511
bogdanm 0:9b334a45a8ff 512 /** \brief Disable FIQ
bogdanm 0:9b334a45a8ff 513
bogdanm 0:9b334a45a8ff 514 This function disables FIQ interrupts by setting the F-bit in the CPSR.
bogdanm 0:9b334a45a8ff 515 Can only be executed in Privileged modes.
bogdanm 0:9b334a45a8ff 516 */
bogdanm 0:9b334a45a8ff 517 __attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_fault_irq(void)
bogdanm 0:9b334a45a8ff 518 {
bogdanm 0:9b334a45a8ff 519 __ASM volatile ("cpsid f" : : : "memory");
bogdanm 0:9b334a45a8ff 520 }
bogdanm 0:9b334a45a8ff 521
bogdanm 0:9b334a45a8ff 522
bogdanm 0:9b334a45a8ff 523 /** \brief Get Base Priority
bogdanm 0:9b334a45a8ff 524
bogdanm 0:9b334a45a8ff 525 This function returns the current value of the Base Priority register.
bogdanm 0:9b334a45a8ff 526
bogdanm 0:9b334a45a8ff 527 \return Base Priority register value
bogdanm 0:9b334a45a8ff 528 */
bogdanm 0:9b334a45a8ff 529 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_BASEPRI(void)
bogdanm 0:9b334a45a8ff 530 {
bogdanm 0:9b334a45a8ff 531 uint32_t result;
bogdanm 0:9b334a45a8ff 532
bogdanm 0:9b334a45a8ff 533 __ASM volatile ("MRS %0, basepri_max" : "=r" (result) );
bogdanm 0:9b334a45a8ff 534 return(result);
bogdanm 0:9b334a45a8ff 535 }
bogdanm 0:9b334a45a8ff 536
bogdanm 0:9b334a45a8ff 537
bogdanm 0:9b334a45a8ff 538 /** \brief Set Base Priority
bogdanm 0:9b334a45a8ff 539
bogdanm 0:9b334a45a8ff 540 This function assigns the given value to the Base Priority register.
bogdanm 0:9b334a45a8ff 541
bogdanm 0:9b334a45a8ff 542 \param [in] basePri Base Priority value to set
bogdanm 0:9b334a45a8ff 543 */
bogdanm 0:9b334a45a8ff 544 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_BASEPRI(uint32_t value)
bogdanm 0:9b334a45a8ff 545 {
bogdanm 0:9b334a45a8ff 546 __ASM volatile ("MSR basepri, %0" : : "r" (value) : "memory");
bogdanm 0:9b334a45a8ff 547 }
bogdanm 0:9b334a45a8ff 548
bogdanm 0:9b334a45a8ff 549
bogdanm 0:9b334a45a8ff 550 /** \brief Get Fault Mask
bogdanm 0:9b334a45a8ff 551
bogdanm 0:9b334a45a8ff 552 This function returns the current value of the Fault Mask register.
bogdanm 0:9b334a45a8ff 553
bogdanm 0:9b334a45a8ff 554 \return Fault Mask register value
bogdanm 0:9b334a45a8ff 555 */
bogdanm 0:9b334a45a8ff 556 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FAULTMASK(void)
bogdanm 0:9b334a45a8ff 557 {
bogdanm 0:9b334a45a8ff 558 uint32_t result;
bogdanm 0:9b334a45a8ff 559
bogdanm 0:9b334a45a8ff 560 __ASM volatile ("MRS %0, faultmask" : "=r" (result) );
bogdanm 0:9b334a45a8ff 561 return(result);
bogdanm 0:9b334a45a8ff 562 }
bogdanm 0:9b334a45a8ff 563
bogdanm 0:9b334a45a8ff 564
bogdanm 0:9b334a45a8ff 565 /** \brief Set Fault Mask
bogdanm 0:9b334a45a8ff 566
bogdanm 0:9b334a45a8ff 567 This function assigns the given value to the Fault Mask register.
bogdanm 0:9b334a45a8ff 568
bogdanm 0:9b334a45a8ff 569 \param [in] faultMask Fault Mask value to set
bogdanm 0:9b334a45a8ff 570 */
bogdanm 0:9b334a45a8ff 571 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FAULTMASK(uint32_t faultMask)
bogdanm 0:9b334a45a8ff 572 {
bogdanm 0:9b334a45a8ff 573 __ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) : "memory");
bogdanm 0:9b334a45a8ff 574 }
bogdanm 0:9b334a45a8ff 575
bogdanm 0:9b334a45a8ff 576 #endif /* (__CORTEX_M >= 0x03) */
bogdanm 0:9b334a45a8ff 577
bogdanm 0:9b334a45a8ff 578
bogdanm 0:9b334a45a8ff 579 #if (__CORTEX_M == 0x04)
bogdanm 0:9b334a45a8ff 580
bogdanm 0:9b334a45a8ff 581 /** \brief Get FPSCR
bogdanm 0:9b334a45a8ff 582
bogdanm 0:9b334a45a8ff 583 This function returns the current value of the Floating Point Status/Control register.
bogdanm 0:9b334a45a8ff 584
bogdanm 0:9b334a45a8ff 585 \return Floating Point Status/Control register value
bogdanm 0:9b334a45a8ff 586 */
bogdanm 0:9b334a45a8ff 587 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPSCR(void)
bogdanm 0:9b334a45a8ff 588 {
bogdanm 0:9b334a45a8ff 589 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
bogdanm 0:9b334a45a8ff 590 uint32_t result;
bogdanm 0:9b334a45a8ff 591
bogdanm 0:9b334a45a8ff 592 /* Empty asm statement works as a scheduling barrier */
bogdanm 0:9b334a45a8ff 593 __ASM volatile ("");
bogdanm 0:9b334a45a8ff 594 __ASM volatile ("VMRS %0, fpscr" : "=r" (result) );
bogdanm 0:9b334a45a8ff 595 __ASM volatile ("");
bogdanm 0:9b334a45a8ff 596 return(result);
bogdanm 0:9b334a45a8ff 597 #else
bogdanm 0:9b334a45a8ff 598 return(0);
bogdanm 0:9b334a45a8ff 599 #endif
bogdanm 0:9b334a45a8ff 600 }
bogdanm 0:9b334a45a8ff 601
bogdanm 0:9b334a45a8ff 602
bogdanm 0:9b334a45a8ff 603 /** \brief Set FPSCR
bogdanm 0:9b334a45a8ff 604
bogdanm 0:9b334a45a8ff 605 This function assigns the given value to the Floating Point Status/Control register.
bogdanm 0:9b334a45a8ff 606
bogdanm 0:9b334a45a8ff 607 \param [in] fpscr Floating Point Status/Control value to set
bogdanm 0:9b334a45a8ff 608 */
bogdanm 0:9b334a45a8ff 609 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPSCR(uint32_t fpscr)
bogdanm 0:9b334a45a8ff 610 {
bogdanm 0:9b334a45a8ff 611 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
bogdanm 0:9b334a45a8ff 612 /* Empty asm statement works as a scheduling barrier */
bogdanm 0:9b334a45a8ff 613 __ASM volatile ("");
bogdanm 0:9b334a45a8ff 614 __ASM volatile ("VMSR fpscr, %0" : : "r" (fpscr) : "vfpcc");
bogdanm 0:9b334a45a8ff 615 __ASM volatile ("");
bogdanm 0:9b334a45a8ff 616 #endif
bogdanm 0:9b334a45a8ff 617 }
bogdanm 0:9b334a45a8ff 618
bogdanm 0:9b334a45a8ff 619 #endif /* (__CORTEX_M == 0x04) */
bogdanm 0:9b334a45a8ff 620
bogdanm 0:9b334a45a8ff 621
bogdanm 0:9b334a45a8ff 622 #elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
bogdanm 0:9b334a45a8ff 623 /* TASKING carm specific functions */
bogdanm 0:9b334a45a8ff 624
bogdanm 0:9b334a45a8ff 625 /*
bogdanm 0:9b334a45a8ff 626 * The CMSIS functions have been implemented as intrinsics in the compiler.
bogdanm 0:9b334a45a8ff 627 * Please use "carm -?i" to get an up to date list of all instrinsics,
bogdanm 0:9b334a45a8ff 628 * Including the CMSIS ones.
bogdanm 0:9b334a45a8ff 629 */
bogdanm 0:9b334a45a8ff 630
bogdanm 0:9b334a45a8ff 631 #endif
bogdanm 0:9b334a45a8ff 632
bogdanm 0:9b334a45a8ff 633 /*@} end of CMSIS_Core_RegAccFunctions */
bogdanm 0:9b334a45a8ff 634
bogdanm 0:9b334a45a8ff 635
bogdanm 0:9b334a45a8ff 636 #endif /* __CORE_CMFUNC_H */