mbed official / mbed-rtos

Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.

Dependents:   denki-yohou_b TestY201 Network-RTOS NTPClient_HelloWorld ... more

Deprecated

This is the mbed 2 rtos library. mbed OS 5 integrates the mbed library with mbed-rtos. With this, we have provided thread safety for all mbed APIs. If you'd like to learn about using mbed OS 5, please see the docs.

rtx/TARGET_CORTEX_M/TARGET_M0P/TOOLCHAIN_IAR/HAL_CM0.s@68:d3d0e710b443, 2015-03-12 (annotated)

Committer:
mbed_official
Date:
Thu Mar 12 14:31:19 2015 +0000
Revision:
68:d3d0e710b443
Parent:
59:28712e303960 
Synchronized with git revision 051854181516992fb498d51f9ee6e70cbad9e083



Full URL: https://github.com/mbedmicro/mbed/commit/051854181516992fb498d51f9ee6e70cbad9e083/



Fix ksdk mcu HAL - stopbit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 55:5f5ceea4fc8a 1 /*----------------------------------------------------------------------------
mbed_official 55:5f5ceea4fc8a 2 * CMSIS-RTOS - RTX
mbed_official 55:5f5ceea4fc8a 3 *----------------------------------------------------------------------------
mbed_official 55:5f5ceea4fc8a 4 * Name: HAL_CM0.S
mbed_official 55:5f5ceea4fc8a 5 * Purpose: Hardware Abstraction Layer for Cortex-M0
mbed_official 55:5f5ceea4fc8a 6 * Rev.: V4.70
mbed_official 55:5f5ceea4fc8a 7 *----------------------------------------------------------------------------
mbed_official 55:5f5ceea4fc8a 8 *
mbed_official 55:5f5ceea4fc8a 9 * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
mbed_official 55:5f5ceea4fc8a 10 * All rights reserved.
mbed_official 55:5f5ceea4fc8a 11 * Redistribution and use in source and binary forms, with or without
mbed_official 55:5f5ceea4fc8a 12 * modification, are permitted provided that the following conditions are met:
mbed_official 55:5f5ceea4fc8a 13 * - Redistributions of source code must retain the above copyright
mbed_official 55:5f5ceea4fc8a 14 * notice, this list of conditions and the following disclaimer.
mbed_official 55:5f5ceea4fc8a 15 * - Redistributions in binary form must reproduce the above copyright
mbed_official 55:5f5ceea4fc8a 16 * notice, this list of conditions and the following disclaimer in the
mbed_official 55:5f5ceea4fc8a 17 * documentation and/or other materials provided with the distribution.
mbed_official 68:d3d0e710b443 18 * - Neither the name of ARM nor the names of its contributors may be used
mbed_official 68:d3d0e710b443 19 * to endorse or promote products derived from this software without
mbed_official 55:5f5ceea4fc8a 20 * specific prior written permission.
mbed_official 55:5f5ceea4fc8a 21 *
mbed_official 68:d3d0e710b443 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 68:d3d0e710b443 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 55:5f5ceea4fc8a 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbed_official 55:5f5ceea4fc8a 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbed_official 55:5f5ceea4fc8a 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbed_official 68:d3d0e710b443 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbed_official 68:d3d0e710b443 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 68:d3d0e710b443 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 68:d3d0e710b443 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbed_official 55:5f5ceea4fc8a 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 55:5f5ceea4fc8a 32 * POSSIBILITY OF SUCH DAMAGE.
mbed_official 55:5f5ceea4fc8a 33 *---------------------------------------------------------------------------*/
mbed_official 55:5f5ceea4fc8a 34
mbed_official 55:5f5ceea4fc8a 35 NAME HAL_CM0.S
mbed_official 55:5f5ceea4fc8a 36
mbed_official 59:28712e303960 37 #define TCB_TSTACK 40
mbed_official 55:5f5ceea4fc8a 38
mbed_official 55:5f5ceea4fc8a 39 EXTERN os_flags
mbed_official 55:5f5ceea4fc8a 40 EXTERN os_tsk
mbed_official 55:5f5ceea4fc8a 41 EXTERN rt_alloc_box
mbed_official 55:5f5ceea4fc8a 42 EXTERN rt_free_box
mbed_official 55:5f5ceea4fc8a 43 EXTERN rt_stk_check
mbed_official 55:5f5ceea4fc8a 44 EXTERN rt_pop_req
mbed_official 55:5f5ceea4fc8a 45 EXTERN rt_systick
mbed_official 55:5f5ceea4fc8a 46 EXTERN os_tick_irqack
mbed_official 55:5f5ceea4fc8a 47 EXTERN SVC_Table
mbed_official 55:5f5ceea4fc8a 48 EXTERN SVC_Count
mbed_official 55:5f5ceea4fc8a 49
mbed_official 55:5f5ceea4fc8a 50 /*----------------------------------------------------------------------------
mbed_official 55:5f5ceea4fc8a 51 * Functions
mbed_official 55:5f5ceea4fc8a 52 *---------------------------------------------------------------------------*/
mbed_official 55:5f5ceea4fc8a 53
mbed_official 55:5f5ceea4fc8a 54 SECTION .text:CODE:NOROOT(2)
mbed_official 55:5f5ceea4fc8a 55 THUMB
mbed_official 55:5f5ceea4fc8a 56
mbed_official 55:5f5ceea4fc8a 57 /*--------------------------- rt_set_PSP ------------------------------------*/
mbed_official 55:5f5ceea4fc8a 58
mbed_official 55:5f5ceea4fc8a 59 ; void rt_set_PSP (U32 stack);
mbed_official 55:5f5ceea4fc8a 60
mbed_official 55:5f5ceea4fc8a 61 PUBLIC rt_set_PSP
mbed_official 55:5f5ceea4fc8a 62 rt_set_PSP:
mbed_official 55:5f5ceea4fc8a 63
mbed_official 55:5f5ceea4fc8a 64 MSR PSP,R0
mbed_official 55:5f5ceea4fc8a 65 BX LR
mbed_official 55:5f5ceea4fc8a 66
mbed_official 55:5f5ceea4fc8a 67
mbed_official 55:5f5ceea4fc8a 68 /*--------------------------- rt_get_PSP ------------------------------------*/
mbed_official 55:5f5ceea4fc8a 69
mbed_official 55:5f5ceea4fc8a 70 ; U32 rt_get_PSP (void);
mbed_official 55:5f5ceea4fc8a 71
mbed_official 55:5f5ceea4fc8a 72 PUBLIC rt_get_PSP
mbed_official 55:5f5ceea4fc8a 73 rt_get_PSP:
mbed_official 55:5f5ceea4fc8a 74
mbed_official 55:5f5ceea4fc8a 75 MRS R0,PSP
mbed_official 55:5f5ceea4fc8a 76 BX LR
mbed_official 55:5f5ceea4fc8a 77
mbed_official 55:5f5ceea4fc8a 78
mbed_official 55:5f5ceea4fc8a 79 /*--------------------------- os_set_env ------------------------------------*/
mbed_official 55:5f5ceea4fc8a 80
mbed_official 55:5f5ceea4fc8a 81 ; void os_set_env (void);
mbed_official 55:5f5ceea4fc8a 82 /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
mbed_official 55:5f5ceea4fc8a 83
mbed_official 55:5f5ceea4fc8a 84 PUBLIC os_set_env
mbed_official 55:5f5ceea4fc8a 85 os_set_env:
mbed_official 55:5f5ceea4fc8a 86
mbed_official 55:5f5ceea4fc8a 87 MOV R0,SP /* PSP = MSP */
mbed_official 55:5f5ceea4fc8a 88 MSR PSP,R0
mbed_official 55:5f5ceea4fc8a 89 LDR R0,=os_flags
mbed_official 55:5f5ceea4fc8a 90 LDRB R0,[R0]
mbed_official 55:5f5ceea4fc8a 91 LSLS R0,#31
mbed_official 55:5f5ceea4fc8a 92 BNE PrivilegedE
mbed_official 55:5f5ceea4fc8a 93 MOVS R0,#0x03 /* Unprivileged Thread mode, use PSP */
mbed_official 55:5f5ceea4fc8a 94 MSR CONTROL,R0
mbed_official 55:5f5ceea4fc8a 95 BX LR
mbed_official 55:5f5ceea4fc8a 96 PrivilegedE:
mbed_official 55:5f5ceea4fc8a 97 MOVS R0,#0x02 /* Privileged Thread mode, use PSP */
mbed_official 55:5f5ceea4fc8a 98 MSR CONTROL,R0
mbed_official 55:5f5ceea4fc8a 99 BX LR
mbed_official 55:5f5ceea4fc8a 100
mbed_official 55:5f5ceea4fc8a 101
mbed_official 55:5f5ceea4fc8a 102 /*--------------------------- _alloc_box ------------------------------------*/
mbed_official 55:5f5ceea4fc8a 103
mbed_official 55:5f5ceea4fc8a 104 ; void *_alloc_box (void *box_mem);
mbed_official 55:5f5ceea4fc8a 105 /* Function wrapper for Unprivileged/Privileged mode. */
mbed_official 55:5f5ceea4fc8a 106
mbed_official 55:5f5ceea4fc8a 107 PUBLIC _alloc_box
mbed_official 55:5f5ceea4fc8a 108 _alloc_box:
mbed_official 55:5f5ceea4fc8a 109
mbed_official 55:5f5ceea4fc8a 110 LDR R3,=rt_alloc_box
mbed_official 55:5f5ceea4fc8a 111 MOV R12,R3
mbed_official 55:5f5ceea4fc8a 112 MRS R3,IPSR
mbed_official 55:5f5ceea4fc8a 113 LSLS R3,#24
mbed_official 55:5f5ceea4fc8a 114 BNE PrivilegedA
mbed_official 55:5f5ceea4fc8a 115 MRS R3,CONTROL
mbed_official 55:5f5ceea4fc8a 116 LSLS R3,#31
mbed_official 55:5f5ceea4fc8a 117 BEQ PrivilegedA
mbed_official 55:5f5ceea4fc8a 118 SVC 0
mbed_official 55:5f5ceea4fc8a 119 BX LR
mbed_official 55:5f5ceea4fc8a 120 PrivilegedA:
mbed_official 55:5f5ceea4fc8a 121 BX R12
mbed_official 55:5f5ceea4fc8a 122
mbed_official 55:5f5ceea4fc8a 123
mbed_official 55:5f5ceea4fc8a 124 /*--------------------------- _free_box -------------------------------------*/
mbed_official 55:5f5ceea4fc8a 125
mbed_official 55:5f5ceea4fc8a 126 ; int _free_box (void *box_mem, void *box);
mbed_official 55:5f5ceea4fc8a 127 /* Function wrapper for Unprivileged/Privileged mode. */
mbed_official 55:5f5ceea4fc8a 128
mbed_official 55:5f5ceea4fc8a 129 PUBLIC _free_box
mbed_official 55:5f5ceea4fc8a 130 _free_box:
mbed_official 55:5f5ceea4fc8a 131
mbed_official 55:5f5ceea4fc8a 132 LDR R3,=rt_free_box
mbed_official 55:5f5ceea4fc8a 133 MOV R12,R3
mbed_official 55:5f5ceea4fc8a 134 MRS R3,IPSR
mbed_official 55:5f5ceea4fc8a 135 LSLS R3,#24
mbed_official 55:5f5ceea4fc8a 136 BNE PrivilegedF
mbed_official 55:5f5ceea4fc8a 137 MRS R3,CONTROL
mbed_official 55:5f5ceea4fc8a 138 LSLS R3,#31
mbed_official 55:5f5ceea4fc8a 139 BEQ PrivilegedF
mbed_official 55:5f5ceea4fc8a 140 SVC 0
mbed_official 55:5f5ceea4fc8a 141 BX LR
mbed_official 55:5f5ceea4fc8a 142 PrivilegedF:
mbed_official 55:5f5ceea4fc8a 143 BX R12
mbed_official 55:5f5ceea4fc8a 144
mbed_official 55:5f5ceea4fc8a 145
mbed_official 55:5f5ceea4fc8a 146 /*-------------------------- SVC_Handler ------------------------------------*/
mbed_official 55:5f5ceea4fc8a 147
mbed_official 55:5f5ceea4fc8a 148 ; void SVC_Handler (void);
mbed_official 55:5f5ceea4fc8a 149
mbed_official 55:5f5ceea4fc8a 150 PUBLIC SVC_Handler
mbed_official 55:5f5ceea4fc8a 151 SVC_Handler:
mbed_official 55:5f5ceea4fc8a 152
mbed_official 55:5f5ceea4fc8a 153 MRS R0,PSP /* Read PSP */
mbed_official 55:5f5ceea4fc8a 154 LDR R1,[R0,#24] /* Read Saved PC from Stack */
mbed_official 55:5f5ceea4fc8a 155 SUBS R1,R1,#2 /* Point to SVC Instruction */
mbed_official 55:5f5ceea4fc8a 156 LDRB R1,[R1] /* Load SVC Number */
mbed_official 55:5f5ceea4fc8a 157 CMP R1,#0
mbed_official 55:5f5ceea4fc8a 158 BNE SVC_User /* User SVC Number > 0 */
mbed_official 55:5f5ceea4fc8a 159
mbed_official 55:5f5ceea4fc8a 160 MOV LR,R4
mbed_official 55:5f5ceea4fc8a 161 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
mbed_official 55:5f5ceea4fc8a 162 MOV R12,R4
mbed_official 55:5f5ceea4fc8a 163 MOV R4,LR
mbed_official 55:5f5ceea4fc8a 164 BLX R12 /* Call SVC Function */
mbed_official 55:5f5ceea4fc8a 165
mbed_official 55:5f5ceea4fc8a 166 MRS R3,PSP /* Read PSP */
mbed_official 55:5f5ceea4fc8a 167 STMIA R3!,{R0-R2} /* Store return values */
mbed_official 55:5f5ceea4fc8a 168
mbed_official 55:5f5ceea4fc8a 169 LDR R3,=os_tsk
mbed_official 55:5f5ceea4fc8a 170 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
mbed_official 55:5f5ceea4fc8a 171 CMP R1,R2
mbed_official 55:5f5ceea4fc8a 172 BEQ SVC_Exit /* no task switch */
mbed_official 55:5f5ceea4fc8a 173
mbed_official 55:5f5ceea4fc8a 174 SUBS R3,#8
mbed_official 55:5f5ceea4fc8a 175 CMP R1,#0 /* Runtask deleted? */
mbed_official 55:5f5ceea4fc8a 176 BEQ SVC_Next
mbed_official 55:5f5ceea4fc8a 177
mbed_official 55:5f5ceea4fc8a 178 MRS R0,PSP /* Read PSP */
mbed_official 55:5f5ceea4fc8a 179 SUBS R0,R0,#32 /* Adjust Start Address */
mbed_official 68:d3d0e710b443 180 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
mbed_official 55:5f5ceea4fc8a 181 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
mbed_official 55:5f5ceea4fc8a 182 MOV R4,R8
mbed_official 55:5f5ceea4fc8a 183 MOV R5,R9
mbed_official 55:5f5ceea4fc8a 184 MOV R6,R10
mbed_official 55:5f5ceea4fc8a 185 MOV R7,R11
mbed_official 55:5f5ceea4fc8a 186 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
mbed_official 55:5f5ceea4fc8a 187
mbed_official 55:5f5ceea4fc8a 188 PUSH {R2,R3}
mbed_official 55:5f5ceea4fc8a 189 BL rt_stk_check /* Check for Stack overflow */
mbed_official 55:5f5ceea4fc8a 190 POP {R2,R3}
mbed_official 55:5f5ceea4fc8a 191
mbed_official 55:5f5ceea4fc8a 192 SVC_Next:
mbed_official 55:5f5ceea4fc8a 193 STR R2,[R3] /* os_tsk.run = os_tsk.new */
mbed_official 55:5f5ceea4fc8a 194
mbed_official 55:5f5ceea4fc8a 195 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
mbed_official 55:5f5ceea4fc8a 196 ADDS R0,R0,#16 /* Adjust Start Address */
mbed_official 55:5f5ceea4fc8a 197 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
mbed_official 55:5f5ceea4fc8a 198 MOV R8,R4
mbed_official 55:5f5ceea4fc8a 199 MOV R9,R5
mbed_official 55:5f5ceea4fc8a 200 MOV R10,R6
mbed_official 55:5f5ceea4fc8a 201 MOV R11,R7
mbed_official 55:5f5ceea4fc8a 202 MSR PSP,R0 /* Write PSP */
mbed_official 55:5f5ceea4fc8a 203 SUBS R0,R0,#32 /* Adjust Start Address */
mbed_official 55:5f5ceea4fc8a 204 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
mbed_official 55:5f5ceea4fc8a 205
mbed_official 55:5f5ceea4fc8a 206 SVC_Exit:
mbed_official 55:5f5ceea4fc8a 207 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
mbed_official 55:5f5ceea4fc8a 208 MVNS R0,R0
mbed_official 55:5f5ceea4fc8a 209 BX R0 /* RETI to Thread Mode, use PSP */
mbed_official 55:5f5ceea4fc8a 210
mbed_official 55:5f5ceea4fc8a 211 /*------------------- User SVC ------------------------------*/
mbed_official 55:5f5ceea4fc8a 212
mbed_official 55:5f5ceea4fc8a 213 SVC_User:
mbed_official 55:5f5ceea4fc8a 214 PUSH {R4,LR} /* Save Registers */
mbed_official 55:5f5ceea4fc8a 215 LDR R2,=SVC_Count
mbed_official 55:5f5ceea4fc8a 216 LDR R2,[R2]
mbed_official 55:5f5ceea4fc8a 217 CMP R1,R2
mbed_official 55:5f5ceea4fc8a 218 BHI SVC_Done /* Overflow */
mbed_official 55:5f5ceea4fc8a 219
mbed_official 55:5f5ceea4fc8a 220 LDR R4,=SVC_Table-4
mbed_official 55:5f5ceea4fc8a 221 LSLS R1,R1,#2
mbed_official 55:5f5ceea4fc8a 222 LDR R4,[R4,R1] /* Load SVC Function Address */
mbed_official 55:5f5ceea4fc8a 223 MOV LR,R4
mbed_official 55:5f5ceea4fc8a 224
mbed_official 55:5f5ceea4fc8a 225 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
mbed_official 55:5f5ceea4fc8a 226 MOV R12,R4
mbed_official 55:5f5ceea4fc8a 227 BLX LR /* Call SVC Function */
mbed_official 55:5f5ceea4fc8a 228
mbed_official 55:5f5ceea4fc8a 229 MRS R4,PSP /* Read PSP */
mbed_official 55:5f5ceea4fc8a 230 STMIA R4!,{R0-R3} /* Function return values */
mbed_official 55:5f5ceea4fc8a 231 SVC_Done:
mbed_official 55:5f5ceea4fc8a 232 POP {R4,PC} /* RETI */
mbed_official 68:d3d0e710b443 233
mbed_official 55:5f5ceea4fc8a 234
mbed_official 55:5f5ceea4fc8a 235 /*-------------------------- PendSV_Handler ---------------------------------*/
mbed_official 55:5f5ceea4fc8a 236
mbed_official 55:5f5ceea4fc8a 237 ; void PendSV_Handler (void);
mbed_official 55:5f5ceea4fc8a 238
mbed_official 55:5f5ceea4fc8a 239 PUBLIC PendSV_Handler
mbed_official 55:5f5ceea4fc8a 240 PendSV_Handler:
mbed_official 55:5f5ceea4fc8a 241
mbed_official 55:5f5ceea4fc8a 242 BL rt_pop_req
mbed_official 55:5f5ceea4fc8a 243
mbed_official 55:5f5ceea4fc8a 244 Sys_Switch:
mbed_official 55:5f5ceea4fc8a 245 LDR R3,=os_tsk
mbed_official 55:5f5ceea4fc8a 246 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
mbed_official 55:5f5ceea4fc8a 247 CMP R1,R2
mbed_official 55:5f5ceea4fc8a 248 BEQ Sys_Exit /* no task switch */
mbed_official 55:5f5ceea4fc8a 249
mbed_official 55:5f5ceea4fc8a 250 SUBS R3,#8
mbed_official 55:5f5ceea4fc8a 251
mbed_official 55:5f5ceea4fc8a 252 MRS R0,PSP /* Read PSP */
mbed_official 55:5f5ceea4fc8a 253 SUBS R0,R0,#32 /* Adjust Start Address */
mbed_official 55:5f5ceea4fc8a 254 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
mbed_official 55:5f5ceea4fc8a 255 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
mbed_official 55:5f5ceea4fc8a 256 MOV R4,R8
mbed_official 55:5f5ceea4fc8a 257 MOV R5,R9
mbed_official 55:5f5ceea4fc8a 258 MOV R6,R10
mbed_official 55:5f5ceea4fc8a 259 MOV R7,R11
mbed_official 55:5f5ceea4fc8a 260 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
mbed_official 55:5f5ceea4fc8a 261
mbed_official 55:5f5ceea4fc8a 262 PUSH {R2,R3}
mbed_official 55:5f5ceea4fc8a 263 BL rt_stk_check /* Check for Stack overflow */
mbed_official 55:5f5ceea4fc8a 264 POP {R2,R3}
mbed_official 55:5f5ceea4fc8a 265
mbed_official 55:5f5ceea4fc8a 266 STR R2,[R3] /* os_tsk.run = os_tsk.new */
mbed_official 55:5f5ceea4fc8a 267
mbed_official 55:5f5ceea4fc8a 268 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
mbed_official 55:5f5ceea4fc8a 269 ADDS R0,R0,#16 /* Adjust Start Address */
mbed_official 55:5f5ceea4fc8a 270 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
mbed_official 55:5f5ceea4fc8a 271 MOV R8,R4
mbed_official 55:5f5ceea4fc8a 272 MOV R9,R5
mbed_official 55:5f5ceea4fc8a 273 MOV R10,R6
mbed_official 55:5f5ceea4fc8a 274 MOV R11,R7
mbed_official 55:5f5ceea4fc8a 275 MSR PSP,R0 /* Write PSP */
mbed_official 55:5f5ceea4fc8a 276 SUBS R0,R0,#32 /* Adjust Start Address */
mbed_official 55:5f5ceea4fc8a 277 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
mbed_official 55:5f5ceea4fc8a 278
mbed_official 55:5f5ceea4fc8a 279 Sys_Exit:
mbed_official 55:5f5ceea4fc8a 280 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
mbed_official 55:5f5ceea4fc8a 281 MVNS R0,R0
mbed_official 55:5f5ceea4fc8a 282 BX R0 /* RETI to Thread Mode, use PSP */
mbed_official 55:5f5ceea4fc8a 283
mbed_official 55:5f5ceea4fc8a 284
mbed_official 55:5f5ceea4fc8a 285 /*-------------------------- SysTick_Handler --------------------------------*/
mbed_official 55:5f5ceea4fc8a 286
mbed_official 55:5f5ceea4fc8a 287 ; void SysTick_Handler (void);
mbed_official 55:5f5ceea4fc8a 288
mbed_official 55:5f5ceea4fc8a 289 PUBLIC SysTick_Handler
mbed_official 55:5f5ceea4fc8a 290 SysTick_Handler:
mbed_official 55:5f5ceea4fc8a 291
mbed_official 55:5f5ceea4fc8a 292 BL rt_systick
mbed_official 55:5f5ceea4fc8a 293 B Sys_Switch
mbed_official 55:5f5ceea4fc8a 294
mbed_official 55:5f5ceea4fc8a 295
mbed_official 55:5f5ceea4fc8a 296 /*-------------------------- OS_Tick_Handler --------------------------------*/
mbed_official 55:5f5ceea4fc8a 297
mbed_official 55:5f5ceea4fc8a 298 ; void OS_Tick_Handler (void);
mbed_official 55:5f5ceea4fc8a 299
mbed_official 55:5f5ceea4fc8a 300 PUBLIC OS_Tick_Handler
mbed_official 55:5f5ceea4fc8a 301 OS_Tick_Handler:
mbed_official 55:5f5ceea4fc8a 302
mbed_official 55:5f5ceea4fc8a 303 BL os_tick_irqack
mbed_official 55:5f5ceea4fc8a 304 BL rt_systick
mbed_official 55:5f5ceea4fc8a 305 B Sys_Switch
mbed_official 55:5f5ceea4fc8a 306
mbed_official 55:5f5ceea4fc8a 307
mbed_official 55:5f5ceea4fc8a 308 END
mbed_official 55:5f5ceea4fc8a 309
mbed_official 55:5f5ceea4fc8a 310 /*----------------------------------------------------------------------------
mbed_official 55:5f5ceea4fc8a 311 * end of file
mbed_official 55:5f5ceea4fc8a 312 *---------------------------------------------------------------------------*/