Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbed-rtos/rtx/TARGET_CORTEX_M/TARGET_M0P/TOOLCHAIN_GCC/HAL_CM0.S@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 11:cada08fc8a70 1 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 2 * RL-ARM - RTX
mbedAustin 11:cada08fc8a70 3 *----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 4 * Name: HAL_CM0.S
mbedAustin 11:cada08fc8a70 5 * Purpose: Hardware Abstraction Layer for Cortex-M0
mbedAustin 11:cada08fc8a70 6 * Rev.: V4.60
mbedAustin 11:cada08fc8a70 7 *----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 8 *
mbedAustin 11:cada08fc8a70 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
mbedAustin 11:cada08fc8a70 10 * All rights reserved.
mbedAustin 11:cada08fc8a70 11 * Redistribution and use in source and binary forms, with or without
mbedAustin 11:cada08fc8a70 12 * modification, are permitted provided that the following conditions are met:
mbedAustin 11:cada08fc8a70 13 * - Redistributions of source code must retain the above copyright
mbedAustin 11:cada08fc8a70 14 * notice, this list of conditions and the following disclaimer.
mbedAustin 11:cada08fc8a70 15 * - Redistributions in binary form must reproduce the above copyright
mbedAustin 11:cada08fc8a70 16 * notice, this list of conditions and the following disclaimer in the
mbedAustin 11:cada08fc8a70 17 * documentation and/or other materials provided with the distribution.
mbedAustin 11:cada08fc8a70 18 * - Neither the name of ARM nor the names of its contributors may be used
mbedAustin 11:cada08fc8a70 19 * to endorse or promote products derived from this software without
mbedAustin 11:cada08fc8a70 20 * specific prior written permission.
mbedAustin 11:cada08fc8a70 21 *
mbedAustin 11:cada08fc8a70 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbedAustin 11:cada08fc8a70 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbedAustin 11:cada08fc8a70 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbedAustin 11:cada08fc8a70 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbedAustin 11:cada08fc8a70 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbedAustin 11:cada08fc8a70 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbedAustin 11:cada08fc8a70 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbedAustin 11:cada08fc8a70 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbedAustin 11:cada08fc8a70 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbedAustin 11:cada08fc8a70 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbedAustin 11:cada08fc8a70 32 * POSSIBILITY OF SUCH DAMAGE.
mbedAustin 11:cada08fc8a70 33 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 34
mbedAustin 11:cada08fc8a70 35 .file "HAL_CM0.S"
mbedAustin 11:cada08fc8a70 36 .syntax unified
mbedAustin 11:cada08fc8a70 37
mbedAustin 11:cada08fc8a70 38 .equ TCB_TSTACK, 40
mbedAustin 11:cada08fc8a70 39
mbedAustin 11:cada08fc8a70 40
mbedAustin 11:cada08fc8a70 41 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 42 * Functions
mbedAustin 11:cada08fc8a70 43 *---------------------------------------------------------------------------*/
mbedAustin 11:cada08fc8a70 44
mbedAustin 11:cada08fc8a70 45 .thumb
mbedAustin 11:cada08fc8a70 46
mbedAustin 11:cada08fc8a70 47 .section ".text"
mbedAustin 11:cada08fc8a70 48 .align 2
mbedAustin 11:cada08fc8a70 49
mbedAustin 11:cada08fc8a70 50
mbedAustin 11:cada08fc8a70 51 /*--------------------------- rt_set_PSP ------------------------------------*/
mbedAustin 11:cada08fc8a70 52
mbedAustin 11:cada08fc8a70 53 # void rt_set_PSP (U32 stack);
mbedAustin 11:cada08fc8a70 54
mbedAustin 11:cada08fc8a70 55 .thumb_func
mbedAustin 11:cada08fc8a70 56 .type rt_set_PSP, %function
mbedAustin 11:cada08fc8a70 57 .global rt_set_PSP
mbedAustin 11:cada08fc8a70 58 rt_set_PSP:
mbedAustin 11:cada08fc8a70 59 .fnstart
mbedAustin 11:cada08fc8a70 60 .cantunwind
mbedAustin 11:cada08fc8a70 61
mbedAustin 11:cada08fc8a70 62 MSR PSP,R0
mbedAustin 11:cada08fc8a70 63 BX LR
mbedAustin 11:cada08fc8a70 64
mbedAustin 11:cada08fc8a70 65 .fnend
mbedAustin 11:cada08fc8a70 66 .size rt_set_PSP, .-rt_set_PSP
mbedAustin 11:cada08fc8a70 67
mbedAustin 11:cada08fc8a70 68
mbedAustin 11:cada08fc8a70 69 /*--------------------------- rt_get_PSP ------------------------------------*/
mbedAustin 11:cada08fc8a70 70
mbedAustin 11:cada08fc8a70 71 # U32 rt_get_PSP (void);
mbedAustin 11:cada08fc8a70 72
mbedAustin 11:cada08fc8a70 73 .thumb_func
mbedAustin 11:cada08fc8a70 74 .type rt_get_PSP, %function
mbedAustin 11:cada08fc8a70 75 .global rt_get_PSP
mbedAustin 11:cada08fc8a70 76 rt_get_PSP:
mbedAustin 11:cada08fc8a70 77 .fnstart
mbedAustin 11:cada08fc8a70 78 .cantunwind
mbedAustin 11:cada08fc8a70 79
mbedAustin 11:cada08fc8a70 80 MRS R0,PSP
mbedAustin 11:cada08fc8a70 81 BX LR
mbedAustin 11:cada08fc8a70 82
mbedAustin 11:cada08fc8a70 83 .fnend
mbedAustin 11:cada08fc8a70 84 .size rt_get_PSP, .-rt_get_PSP
mbedAustin 11:cada08fc8a70 85
mbedAustin 11:cada08fc8a70 86
mbedAustin 11:cada08fc8a70 87 /*--------------------------- os_set_env ------------------------------------*/
mbedAustin 11:cada08fc8a70 88
mbedAustin 11:cada08fc8a70 89 # void os_set_env (void);
mbedAustin 11:cada08fc8a70 90 /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
mbedAustin 11:cada08fc8a70 91
mbedAustin 11:cada08fc8a70 92 .thumb_func
mbedAustin 11:cada08fc8a70 93 .type os_set_env, %function
mbedAustin 11:cada08fc8a70 94 .global os_set_env
mbedAustin 11:cada08fc8a70 95 os_set_env:
mbedAustin 11:cada08fc8a70 96 .fnstart
mbedAustin 11:cada08fc8a70 97 .cantunwind
mbedAustin 11:cada08fc8a70 98
mbedAustin 11:cada08fc8a70 99 MOV R0,SP /* PSP = MSP */
mbedAustin 11:cada08fc8a70 100 MSR PSP,R0
mbedAustin 11:cada08fc8a70 101 LDR R0,=os_flags
mbedAustin 11:cada08fc8a70 102 LDRB R0,[R0]
mbedAustin 11:cada08fc8a70 103 LSLS R0,#31
mbedAustin 11:cada08fc8a70 104 BNE PrivilegedE
mbedAustin 11:cada08fc8a70 105 MOVS R0,#0x03 /* Unprivileged Thread mode, use PSP */
mbedAustin 11:cada08fc8a70 106 MSR CONTROL,R0
mbedAustin 11:cada08fc8a70 107 BX LR
mbedAustin 11:cada08fc8a70 108 PrivilegedE:
mbedAustin 11:cada08fc8a70 109 MOVS R0,#0x02 /* Privileged Thread mode, use PSP */
mbedAustin 11:cada08fc8a70 110 MSR CONTROL,R0
mbedAustin 11:cada08fc8a70 111 BX LR
mbedAustin 11:cada08fc8a70 112
mbedAustin 11:cada08fc8a70 113 .fnend
mbedAustin 11:cada08fc8a70 114 .size os_set_env, .-os_set_env
mbedAustin 11:cada08fc8a70 115
mbedAustin 11:cada08fc8a70 116
mbedAustin 11:cada08fc8a70 117 /*--------------------------- _alloc_box ------------------------------------*/
mbedAustin 11:cada08fc8a70 118
mbedAustin 11:cada08fc8a70 119 # void *_alloc_box (void *box_mem);
mbedAustin 11:cada08fc8a70 120 /* Function wrapper for Unprivileged/Privileged mode. */
mbedAustin 11:cada08fc8a70 121
mbedAustin 11:cada08fc8a70 122 .thumb_func
mbedAustin 11:cada08fc8a70 123 .type _alloc_box, %function
mbedAustin 11:cada08fc8a70 124 .global _alloc_box
mbedAustin 11:cada08fc8a70 125 _alloc_box:
mbedAustin 11:cada08fc8a70 126 .fnstart
mbedAustin 11:cada08fc8a70 127 .cantunwind
mbedAustin 11:cada08fc8a70 128
mbedAustin 11:cada08fc8a70 129 LDR R3,=rt_alloc_box
mbedAustin 11:cada08fc8a70 130 MOV R12,R3
mbedAustin 11:cada08fc8a70 131 MRS R3,IPSR
mbedAustin 11:cada08fc8a70 132 LSLS R3,#24
mbedAustin 11:cada08fc8a70 133 BNE PrivilegedA
mbedAustin 11:cada08fc8a70 134 MRS R3,CONTROL
mbedAustin 11:cada08fc8a70 135 LSLS R3,#31
mbedAustin 11:cada08fc8a70 136 BEQ PrivilegedA
mbedAustin 11:cada08fc8a70 137 SVC 0
mbedAustin 11:cada08fc8a70 138 BX LR
mbedAustin 11:cada08fc8a70 139 PrivilegedA:
mbedAustin 11:cada08fc8a70 140 BX R12
mbedAustin 11:cada08fc8a70 141
mbedAustin 11:cada08fc8a70 142 .fnend
mbedAustin 11:cada08fc8a70 143 .size _alloc_box, .-_alloc_box
mbedAustin 11:cada08fc8a70 144
mbedAustin 11:cada08fc8a70 145
mbedAustin 11:cada08fc8a70 146 /*--------------------------- _free_box -------------------------------------*/
mbedAustin 11:cada08fc8a70 147
mbedAustin 11:cada08fc8a70 148 # int _free_box (void *box_mem, void *box);
mbedAustin 11:cada08fc8a70 149 /* Function wrapper for Unprivileged/Privileged mode. */
mbedAustin 11:cada08fc8a70 150
mbedAustin 11:cada08fc8a70 151 .thumb_func
mbedAustin 11:cada08fc8a70 152 .type _free_box, %function
mbedAustin 11:cada08fc8a70 153 .global _free_box
mbedAustin 11:cada08fc8a70 154 _free_box:
mbedAustin 11:cada08fc8a70 155 .fnstart
mbedAustin 11:cada08fc8a70 156 .cantunwind
mbedAustin 11:cada08fc8a70 157
mbedAustin 11:cada08fc8a70 158 LDR R3,=rt_free_box
mbedAustin 11:cada08fc8a70 159 MOV R12,R3
mbedAustin 11:cada08fc8a70 160 MRS R3,IPSR
mbedAustin 11:cada08fc8a70 161 LSLS R3,#24
mbedAustin 11:cada08fc8a70 162 BNE PrivilegedF
mbedAustin 11:cada08fc8a70 163 MRS R3,CONTROL
mbedAustin 11:cada08fc8a70 164 LSLS R3,#31
mbedAustin 11:cada08fc8a70 165 BEQ PrivilegedF
mbedAustin 11:cada08fc8a70 166 SVC 0
mbedAustin 11:cada08fc8a70 167 BX LR
mbedAustin 11:cada08fc8a70 168 PrivilegedF:
mbedAustin 11:cada08fc8a70 169 BX R12
mbedAustin 11:cada08fc8a70 170
mbedAustin 11:cada08fc8a70 171 .fnend
mbedAustin 11:cada08fc8a70 172 .size _free_box, .-_free_box
mbedAustin 11:cada08fc8a70 173
mbedAustin 11:cada08fc8a70 174
mbedAustin 11:cada08fc8a70 175 /*-------------------------- SVC_Handler ------------------------------------*/
mbedAustin 11:cada08fc8a70 176
mbedAustin 11:cada08fc8a70 177 # void SVC_Handler (void);
mbedAustin 11:cada08fc8a70 178
mbedAustin 11:cada08fc8a70 179 .thumb_func
mbedAustin 11:cada08fc8a70 180 .type SVC_Handler, %function
mbedAustin 11:cada08fc8a70 181 .global SVC_Handler
mbedAustin 11:cada08fc8a70 182 SVC_Handler:
mbedAustin 11:cada08fc8a70 183 .fnstart
mbedAustin 11:cada08fc8a70 184 .cantunwind
mbedAustin 11:cada08fc8a70 185
mbedAustin 11:cada08fc8a70 186 MRS R0,PSP /* Read PSP */
mbedAustin 11:cada08fc8a70 187 LDR R1,[R0,#24] /* Read Saved PC from Stack */
mbedAustin 11:cada08fc8a70 188 SUBS R1,R1,#2 /* Point to SVC Instruction */
mbedAustin 11:cada08fc8a70 189 LDRB R1,[R1] /* Load SVC Number */
mbedAustin 11:cada08fc8a70 190 CMP R1,#0
mbedAustin 11:cada08fc8a70 191 BNE SVC_User /* User SVC Number > 0 */
mbedAustin 11:cada08fc8a70 192
mbedAustin 11:cada08fc8a70 193 MOV LR,R4
mbedAustin 11:cada08fc8a70 194 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
mbedAustin 11:cada08fc8a70 195 MOV R12,R4
mbedAustin 11:cada08fc8a70 196 MOV R4,LR
mbedAustin 11:cada08fc8a70 197 BLX R12 /* Call SVC Function */
mbedAustin 11:cada08fc8a70 198
mbedAustin 11:cada08fc8a70 199 MRS R3,PSP /* Read PSP */
mbedAustin 11:cada08fc8a70 200 STMIA R3!,{R0-R2} /* Store return values */
mbedAustin 11:cada08fc8a70 201
mbedAustin 11:cada08fc8a70 202 LDR R3,=os_tsk
mbedAustin 11:cada08fc8a70 203 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
mbedAustin 11:cada08fc8a70 204 CMP R1,R2
mbedAustin 11:cada08fc8a70 205 BEQ SVC_Exit /* no task switch */
mbedAustin 11:cada08fc8a70 206
mbedAustin 11:cada08fc8a70 207 SUBS R3,#8
mbedAustin 11:cada08fc8a70 208 CMP R1,#0 /* Runtask deleted? */
mbedAustin 11:cada08fc8a70 209 BEQ SVC_Next
mbedAustin 11:cada08fc8a70 210
mbedAustin 11:cada08fc8a70 211 MRS R0,PSP /* Read PSP */
mbedAustin 11:cada08fc8a70 212 SUBS R0,R0,#32 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 213 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
mbedAustin 11:cada08fc8a70 214 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
mbedAustin 11:cada08fc8a70 215 MOV R4,R8
mbedAustin 11:cada08fc8a70 216 MOV R5,R9
mbedAustin 11:cada08fc8a70 217 MOV R6,R10
mbedAustin 11:cada08fc8a70 218 MOV R7,R11
mbedAustin 11:cada08fc8a70 219 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
mbedAustin 11:cada08fc8a70 220
mbedAustin 11:cada08fc8a70 221 PUSH {R2,R3}
mbedAustin 11:cada08fc8a70 222 BL rt_stk_check /* Check for Stack overflow */
mbedAustin 11:cada08fc8a70 223 POP {R2,R3}
mbedAustin 11:cada08fc8a70 224
mbedAustin 11:cada08fc8a70 225 SVC_Next:
mbedAustin 11:cada08fc8a70 226 STR R2,[R3] /* os_tsk.run = os_tsk.new */
mbedAustin 11:cada08fc8a70 227
mbedAustin 11:cada08fc8a70 228 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
mbedAustin 11:cada08fc8a70 229 ADDS R0,R0,#16 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 230 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
mbedAustin 11:cada08fc8a70 231 MOV R8,R4
mbedAustin 11:cada08fc8a70 232 MOV R9,R5
mbedAustin 11:cada08fc8a70 233 MOV R10,R6
mbedAustin 11:cada08fc8a70 234 MOV R11,R7
mbedAustin 11:cada08fc8a70 235 MSR PSP,R0 /* Write PSP */
mbedAustin 11:cada08fc8a70 236 SUBS R0,R0,#32 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 237 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
mbedAustin 11:cada08fc8a70 238
mbedAustin 11:cada08fc8a70 239 SVC_Exit:
mbedAustin 11:cada08fc8a70 240 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
mbedAustin 11:cada08fc8a70 241 MVNS R0,R0
mbedAustin 11:cada08fc8a70 242 BX R0 /* RETI to Thread Mode, use PSP */
mbedAustin 11:cada08fc8a70 243
mbedAustin 11:cada08fc8a70 244 /*------------------- User SVC ------------------------------*/
mbedAustin 11:cada08fc8a70 245
mbedAustin 11:cada08fc8a70 246 SVC_User:
mbedAustin 11:cada08fc8a70 247 PUSH {R4,LR} /* Save Registers */
mbedAustin 11:cada08fc8a70 248 LDR R2,=SVC_Count
mbedAustin 11:cada08fc8a70 249 LDR R2,[R2]
mbedAustin 11:cada08fc8a70 250 CMP R1,R2
mbedAustin 11:cada08fc8a70 251 BHI SVC_Done /* Overflow */
mbedAustin 11:cada08fc8a70 252
mbedAustin 11:cada08fc8a70 253 LDR R4,=SVC_Table-4
mbedAustin 11:cada08fc8a70 254 LSLS R1,R1,#2
mbedAustin 11:cada08fc8a70 255 LDR R4,[R4,R1] /* Load SVC Function Address */
mbedAustin 11:cada08fc8a70 256 MOV LR,R4
mbedAustin 11:cada08fc8a70 257
mbedAustin 11:cada08fc8a70 258 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
mbedAustin 11:cada08fc8a70 259 MOV R12,R4
mbedAustin 11:cada08fc8a70 260 BLX LR /* Call SVC Function */
mbedAustin 11:cada08fc8a70 261
mbedAustin 11:cada08fc8a70 262 MRS R4,PSP /* Read PSP */
mbedAustin 11:cada08fc8a70 263 STMIA R4!,{R0-R3} /* Function return values */
mbedAustin 11:cada08fc8a70 264 SVC_Done:
mbedAustin 11:cada08fc8a70 265 POP {R4,PC} /* RETI */
mbedAustin 11:cada08fc8a70 266
mbedAustin 11:cada08fc8a70 267 .fnend
mbedAustin 11:cada08fc8a70 268 .size SVC_Handler, .-SVC_Handler
mbedAustin 11:cada08fc8a70 269
mbedAustin 11:cada08fc8a70 270
mbedAustin 11:cada08fc8a70 271 /*-------------------------- PendSV_Handler ---------------------------------*/
mbedAustin 11:cada08fc8a70 272
mbedAustin 11:cada08fc8a70 273 # void PendSV_Handler (void);
mbedAustin 11:cada08fc8a70 274
mbedAustin 11:cada08fc8a70 275 .thumb_func
mbedAustin 11:cada08fc8a70 276 .type PendSV_Handler, %function
mbedAustin 11:cada08fc8a70 277 .global PendSV_Handler
mbedAustin 11:cada08fc8a70 278 .global Sys_Switch
mbedAustin 11:cada08fc8a70 279 PendSV_Handler:
mbedAustin 11:cada08fc8a70 280 .fnstart
mbedAustin 11:cada08fc8a70 281 .cantunwind
mbedAustin 11:cada08fc8a70 282
mbedAustin 11:cada08fc8a70 283 BL rt_pop_req
mbedAustin 11:cada08fc8a70 284
mbedAustin 11:cada08fc8a70 285 Sys_Switch:
mbedAustin 11:cada08fc8a70 286 LDR R3,=os_tsk
mbedAustin 11:cada08fc8a70 287 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
mbedAustin 11:cada08fc8a70 288 CMP R1,R2
mbedAustin 11:cada08fc8a70 289 BEQ Sys_Exit /* no task switch */
mbedAustin 11:cada08fc8a70 290
mbedAustin 11:cada08fc8a70 291 SUBS R3,#8
mbedAustin 11:cada08fc8a70 292
mbedAustin 11:cada08fc8a70 293 MRS R0,PSP /* Read PSP */
mbedAustin 11:cada08fc8a70 294 SUBS R0,R0,#32 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 295 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
mbedAustin 11:cada08fc8a70 296 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
mbedAustin 11:cada08fc8a70 297 MOV R4,R8
mbedAustin 11:cada08fc8a70 298 MOV R5,R9
mbedAustin 11:cada08fc8a70 299 MOV R6,R10
mbedAustin 11:cada08fc8a70 300 MOV R7,R11
mbedAustin 11:cada08fc8a70 301 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
mbedAustin 11:cada08fc8a70 302
mbedAustin 11:cada08fc8a70 303 PUSH {R2,R3}
mbedAustin 11:cada08fc8a70 304 BL rt_stk_check /* Check for Stack overflow */
mbedAustin 11:cada08fc8a70 305 POP {R2,R3}
mbedAustin 11:cada08fc8a70 306
mbedAustin 11:cada08fc8a70 307 STR R2,[R3] /* os_tsk.run = os_tsk.new */
mbedAustin 11:cada08fc8a70 308
mbedAustin 11:cada08fc8a70 309 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
mbedAustin 11:cada08fc8a70 310 ADDS R0,R0,#16 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 311 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
mbedAustin 11:cada08fc8a70 312 MOV R8,R4
mbedAustin 11:cada08fc8a70 313 MOV R9,R5
mbedAustin 11:cada08fc8a70 314 MOV R10,R6
mbedAustin 11:cada08fc8a70 315 MOV R11,R7
mbedAustin 11:cada08fc8a70 316 MSR PSP,R0 /* Write PSP */
mbedAustin 11:cada08fc8a70 317 SUBS R0,R0,#32 /* Adjust Start Address */
mbedAustin 11:cada08fc8a70 318 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
mbedAustin 11:cada08fc8a70 319
mbedAustin 11:cada08fc8a70 320 Sys_Exit:
mbedAustin 11:cada08fc8a70 321 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
mbedAustin 11:cada08fc8a70 322 MVNS R0,R0
mbedAustin 11:cada08fc8a70 323 BX R0 /* RETI to Thread Mode, use PSP */
mbedAustin 11:cada08fc8a70 324
mbedAustin 11:cada08fc8a70 325 .fnend
mbedAustin 11:cada08fc8a70 326 .size PendSV_Handler, .-PendSV_Handler
mbedAustin 11:cada08fc8a70 327
mbedAustin 11:cada08fc8a70 328
mbedAustin 11:cada08fc8a70 329 /*-------------------------- SysTick_Handler --------------------------------*/
mbedAustin 11:cada08fc8a70 330
mbedAustin 11:cada08fc8a70 331 # void SysTick_Handler (void);
mbedAustin 11:cada08fc8a70 332
mbedAustin 11:cada08fc8a70 333 .thumb_func
mbedAustin 11:cada08fc8a70 334 .type SysTick_Handler, %function
mbedAustin 11:cada08fc8a70 335 .global SysTick_Handler
mbedAustin 11:cada08fc8a70 336 SysTick_Handler:
mbedAustin 11:cada08fc8a70 337 .fnstart
mbedAustin 11:cada08fc8a70 338 .cantunwind
mbedAustin 11:cada08fc8a70 339
mbedAustin 11:cada08fc8a70 340 BL rt_systick
mbedAustin 11:cada08fc8a70 341 B Sys_Switch
mbedAustin 11:cada08fc8a70 342
mbedAustin 11:cada08fc8a70 343 .fnend
mbedAustin 11:cada08fc8a70 344 .size SysTick_Handler, .-SysTick_Handler
mbedAustin 11:cada08fc8a70 345
mbedAustin 11:cada08fc8a70 346
mbedAustin 11:cada08fc8a70 347 /*-------------------------- OS_Tick_Handler --------------------------------*/
mbedAustin 11:cada08fc8a70 348
mbedAustin 11:cada08fc8a70 349 # void OS_Tick_Handler (void);
mbedAustin 11:cada08fc8a70 350
mbedAustin 11:cada08fc8a70 351 .thumb_func
mbedAustin 11:cada08fc8a70 352 .type OS_Tick_Handler, %function
mbedAustin 11:cada08fc8a70 353 .global OS_Tick_Handler
mbedAustin 11:cada08fc8a70 354 OS_Tick_Handler:
mbedAustin 11:cada08fc8a70 355 .fnstart
mbedAustin 11:cada08fc8a70 356 .cantunwind
mbedAustin 11:cada08fc8a70 357
mbedAustin 11:cada08fc8a70 358 BL os_tick_irqack
mbedAustin 11:cada08fc8a70 359 BL rt_systick
mbedAustin 11:cada08fc8a70 360 B Sys_Switch
mbedAustin 11:cada08fc8a70 361
mbedAustin 11:cada08fc8a70 362 .fnend
mbedAustin 11:cada08fc8a70 363 .size OS_Tick_Handler, .-OS_Tick_Handler
mbedAustin 11:cada08fc8a70 364
mbedAustin 11:cada08fc8a70 365
mbedAustin 11:cada08fc8a70 366 .end
mbedAustin 11:cada08fc8a70 367
mbedAustin 11:cada08fc8a70 368 /*----------------------------------------------------------------------------
mbedAustin 11:cada08fc8a70 369 * end of file
mbedAustin 11:cada08fc8a70 370 *---------------------------------------------------------------------------*/