Arlindo Montagnoli / Mbed 2 deprecated ProjetoBB

ProjetoBB

Dependencies:   F7_Ethernet WebSocketClient mbed mcp3008

Fork of Nucleo_F746ZG_Ethernet by Dieter Graef

mbed-rtos/rtx/TARGET_CORTEX_M/TARGET_M0P/TOOLCHAIN_GCC/HAL_CM0.S@0:f9b6112278fe, 2016-06-18 (annotated)

Committer:
DieterGraef
Date:
Sat Jun 18 10:49:12 2016 +0000
Revision:
0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DieterGraef 0:f9b6112278fe 1 /*----------------------------------------------------------------------------
DieterGraef 0:f9b6112278fe 2 * CMSIS-RTOS - RTX
DieterGraef 0:f9b6112278fe 3 *----------------------------------------------------------------------------
DieterGraef 0:f9b6112278fe 4 * Name: HAL_CM0.S
DieterGraef 0:f9b6112278fe 5 * Purpose: Hardware Abstraction Layer for Cortex-M0
DieterGraef 0:f9b6112278fe 6 * Rev.: V4.70
DieterGraef 0:f9b6112278fe 7 *----------------------------------------------------------------------------
DieterGraef 0:f9b6112278fe 8 *
DieterGraef 0:f9b6112278fe 9 * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
DieterGraef 0:f9b6112278fe 10 * All rights reserved.
DieterGraef 0:f9b6112278fe 11 * Redistribution and use in source and binary forms, with or without
DieterGraef 0:f9b6112278fe 12 * modification, are permitted provided that the following conditions are met:
DieterGraef 0:f9b6112278fe 13 * - Redistributions of source code must retain the above copyright
DieterGraef 0:f9b6112278fe 14 * notice, this list of conditions and the following disclaimer.
DieterGraef 0:f9b6112278fe 15 * - Redistributions in binary form must reproduce the above copyright
DieterGraef 0:f9b6112278fe 16 * notice, this list of conditions and the following disclaimer in the
DieterGraef 0:f9b6112278fe 17 * documentation and/or other materials provided with the distribution.
DieterGraef 0:f9b6112278fe 18 * - Neither the name of ARM nor the names of its contributors may be used
DieterGraef 0:f9b6112278fe 19 * to endorse or promote products derived from this software without
DieterGraef 0:f9b6112278fe 20 * specific prior written permission.
DieterGraef 0:f9b6112278fe 21 *
DieterGraef 0:f9b6112278fe 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
DieterGraef 0:f9b6112278fe 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
DieterGraef 0:f9b6112278fe 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
DieterGraef 0:f9b6112278fe 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
DieterGraef 0:f9b6112278fe 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
DieterGraef 0:f9b6112278fe 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
DieterGraef 0:f9b6112278fe 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
DieterGraef 0:f9b6112278fe 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
DieterGraef 0:f9b6112278fe 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
DieterGraef 0:f9b6112278fe 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
DieterGraef 0:f9b6112278fe 32 * POSSIBILITY OF SUCH DAMAGE.
DieterGraef 0:f9b6112278fe 33 *---------------------------------------------------------------------------*/
DieterGraef 0:f9b6112278fe 34
DieterGraef 0:f9b6112278fe 35 .file "HAL_CM0.S"
DieterGraef 0:f9b6112278fe 36 .syntax unified
DieterGraef 0:f9b6112278fe 37
DieterGraef 0:f9b6112278fe 38 .equ TCB_TSTACK, 44
DieterGraef 0:f9b6112278fe 39
DieterGraef 0:f9b6112278fe 40
DieterGraef 0:f9b6112278fe 41 /*----------------------------------------------------------------------------
DieterGraef 0:f9b6112278fe 42 * Functions
DieterGraef 0:f9b6112278fe 43 *---------------------------------------------------------------------------*/
DieterGraef 0:f9b6112278fe 44
DieterGraef 0:f9b6112278fe 45 .thumb
DieterGraef 0:f9b6112278fe 46
DieterGraef 0:f9b6112278fe 47 .section ".text"
DieterGraef 0:f9b6112278fe 48 .align 2
DieterGraef 0:f9b6112278fe 49
DieterGraef 0:f9b6112278fe 50
DieterGraef 0:f9b6112278fe 51 /*--------------------------- rt_set_PSP ------------------------------------*/
DieterGraef 0:f9b6112278fe 52
DieterGraef 0:f9b6112278fe 53 # void rt_set_PSP (U32 stack);
DieterGraef 0:f9b6112278fe 54
DieterGraef 0:f9b6112278fe 55 .thumb_func
DieterGraef 0:f9b6112278fe 56 .type rt_set_PSP, %function
DieterGraef 0:f9b6112278fe 57 .global rt_set_PSP
DieterGraef 0:f9b6112278fe 58 rt_set_PSP:
DieterGraef 0:f9b6112278fe 59 .fnstart
DieterGraef 0:f9b6112278fe 60 .cantunwind
DieterGraef 0:f9b6112278fe 61
DieterGraef 0:f9b6112278fe 62 MSR PSP,R0
DieterGraef 0:f9b6112278fe 63 BX LR
DieterGraef 0:f9b6112278fe 64
DieterGraef 0:f9b6112278fe 65 .fnend
DieterGraef 0:f9b6112278fe 66 .size rt_set_PSP, .-rt_set_PSP
DieterGraef 0:f9b6112278fe 67
DieterGraef 0:f9b6112278fe 68
DieterGraef 0:f9b6112278fe 69 /*--------------------------- rt_get_PSP ------------------------------------*/
DieterGraef 0:f9b6112278fe 70
DieterGraef 0:f9b6112278fe 71 # U32 rt_get_PSP (void);
DieterGraef 0:f9b6112278fe 72
DieterGraef 0:f9b6112278fe 73 .thumb_func
DieterGraef 0:f9b6112278fe 74 .type rt_get_PSP, %function
DieterGraef 0:f9b6112278fe 75 .global rt_get_PSP
DieterGraef 0:f9b6112278fe 76 rt_get_PSP:
DieterGraef 0:f9b6112278fe 77 .fnstart
DieterGraef 0:f9b6112278fe 78 .cantunwind
DieterGraef 0:f9b6112278fe 79
DieterGraef 0:f9b6112278fe 80 MRS R0,PSP
DieterGraef 0:f9b6112278fe 81 BX LR
DieterGraef 0:f9b6112278fe 82
DieterGraef 0:f9b6112278fe 83 .fnend
DieterGraef 0:f9b6112278fe 84 .size rt_get_PSP, .-rt_get_PSP
DieterGraef 0:f9b6112278fe 85
DieterGraef 0:f9b6112278fe 86
DieterGraef 0:f9b6112278fe 87 /*--------------------------- os_set_env ------------------------------------*/
DieterGraef 0:f9b6112278fe 88
DieterGraef 0:f9b6112278fe 89 # void os_set_env (void);
DieterGraef 0:f9b6112278fe 90 /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
DieterGraef 0:f9b6112278fe 91
DieterGraef 0:f9b6112278fe 92 .thumb_func
DieterGraef 0:f9b6112278fe 93 .type os_set_env, %function
DieterGraef 0:f9b6112278fe 94 .global os_set_env
DieterGraef 0:f9b6112278fe 95 os_set_env:
DieterGraef 0:f9b6112278fe 96 .fnstart
DieterGraef 0:f9b6112278fe 97 .cantunwind
DieterGraef 0:f9b6112278fe 98
DieterGraef 0:f9b6112278fe 99 MOV R0,SP /* PSP = MSP */
DieterGraef 0:f9b6112278fe 100 MSR PSP,R0
DieterGraef 0:f9b6112278fe 101 LDR R0,=os_flags
DieterGraef 0:f9b6112278fe 102 LDRB R0,[R0]
DieterGraef 0:f9b6112278fe 103 LSLS R0,#31
DieterGraef 0:f9b6112278fe 104 BNE PrivilegedE
DieterGraef 0:f9b6112278fe 105 MOVS R0,#0x03 /* Unprivileged Thread mode, use PSP */
DieterGraef 0:f9b6112278fe 106 MSR CONTROL,R0
DieterGraef 0:f9b6112278fe 107 BX LR
DieterGraef 0:f9b6112278fe 108 PrivilegedE:
DieterGraef 0:f9b6112278fe 109 MOVS R0,#0x02 /* Privileged Thread mode, use PSP */
DieterGraef 0:f9b6112278fe 110 MSR CONTROL,R0
DieterGraef 0:f9b6112278fe 111 BX LR
DieterGraef 0:f9b6112278fe 112
DieterGraef 0:f9b6112278fe 113 .fnend
DieterGraef 0:f9b6112278fe 114 .size os_set_env, .-os_set_env
DieterGraef 0:f9b6112278fe 115
DieterGraef 0:f9b6112278fe 116
DieterGraef 0:f9b6112278fe 117 /*--------------------------- _alloc_box ------------------------------------*/
DieterGraef 0:f9b6112278fe 118
DieterGraef 0:f9b6112278fe 119 # void *_alloc_box (void *box_mem);
DieterGraef 0:f9b6112278fe 120 /* Function wrapper for Unprivileged/Privileged mode. */
DieterGraef 0:f9b6112278fe 121
DieterGraef 0:f9b6112278fe 122 .thumb_func
DieterGraef 0:f9b6112278fe 123 .type _alloc_box, %function
DieterGraef 0:f9b6112278fe 124 .global _alloc_box
DieterGraef 0:f9b6112278fe 125 _alloc_box:
DieterGraef 0:f9b6112278fe 126 .fnstart
DieterGraef 0:f9b6112278fe 127 .cantunwind
DieterGraef 0:f9b6112278fe 128
DieterGraef 0:f9b6112278fe 129 LDR R3,=rt_alloc_box
DieterGraef 0:f9b6112278fe 130 MOV R12,R3
DieterGraef 0:f9b6112278fe 131 MRS R3,IPSR
DieterGraef 0:f9b6112278fe 132 LSLS R3,#24
DieterGraef 0:f9b6112278fe 133 BNE PrivilegedA
DieterGraef 0:f9b6112278fe 134 MRS R3,CONTROL
DieterGraef 0:f9b6112278fe 135 LSLS R3,#31
DieterGraef 0:f9b6112278fe 136 BEQ PrivilegedA
DieterGraef 0:f9b6112278fe 137 SVC 0
DieterGraef 0:f9b6112278fe 138 BX LR
DieterGraef 0:f9b6112278fe 139 PrivilegedA:
DieterGraef 0:f9b6112278fe 140 BX R12
DieterGraef 0:f9b6112278fe 141
DieterGraef 0:f9b6112278fe 142 .fnend
DieterGraef 0:f9b6112278fe 143 .size _alloc_box, .-_alloc_box
DieterGraef 0:f9b6112278fe 144
DieterGraef 0:f9b6112278fe 145
DieterGraef 0:f9b6112278fe 146 /*--------------------------- _free_box -------------------------------------*/
DieterGraef 0:f9b6112278fe 147
DieterGraef 0:f9b6112278fe 148 # U32 _free_box (void *box_mem, void *box);
DieterGraef 0:f9b6112278fe 149 /* Function wrapper for Unprivileged/Privileged mode. */
DieterGraef 0:f9b6112278fe 150
DieterGraef 0:f9b6112278fe 151 .thumb_func
DieterGraef 0:f9b6112278fe 152 .type _free_box, %function
DieterGraef 0:f9b6112278fe 153 .global _free_box
DieterGraef 0:f9b6112278fe 154 _free_box:
DieterGraef 0:f9b6112278fe 155 .fnstart
DieterGraef 0:f9b6112278fe 156 .cantunwind
DieterGraef 0:f9b6112278fe 157
DieterGraef 0:f9b6112278fe 158 LDR R3,=rt_free_box
DieterGraef 0:f9b6112278fe 159 MOV R12,R3
DieterGraef 0:f9b6112278fe 160 MRS R3,IPSR
DieterGraef 0:f9b6112278fe 161 LSLS R3,#24
DieterGraef 0:f9b6112278fe 162 BNE PrivilegedF
DieterGraef 0:f9b6112278fe 163 MRS R3,CONTROL
DieterGraef 0:f9b6112278fe 164 LSLS R3,#31
DieterGraef 0:f9b6112278fe 165 BEQ PrivilegedF
DieterGraef 0:f9b6112278fe 166 SVC 0
DieterGraef 0:f9b6112278fe 167 BX LR
DieterGraef 0:f9b6112278fe 168 PrivilegedF:
DieterGraef 0:f9b6112278fe 169 BX R12
DieterGraef 0:f9b6112278fe 170
DieterGraef 0:f9b6112278fe 171 .fnend
DieterGraef 0:f9b6112278fe 172 .size _free_box, .-_free_box
DieterGraef 0:f9b6112278fe 173
DieterGraef 0:f9b6112278fe 174
DieterGraef 0:f9b6112278fe 175 /*-------------------------- SVC_Handler ------------------------------------*/
DieterGraef 0:f9b6112278fe 176
DieterGraef 0:f9b6112278fe 177 # void SVC_Handler (void);
DieterGraef 0:f9b6112278fe 178
DieterGraef 0:f9b6112278fe 179 .thumb_func
DieterGraef 0:f9b6112278fe 180 .type SVC_Handler, %function
DieterGraef 0:f9b6112278fe 181 .global SVC_Handler
DieterGraef 0:f9b6112278fe 182 SVC_Handler:
DieterGraef 0:f9b6112278fe 183 .fnstart
DieterGraef 0:f9b6112278fe 184 .cantunwind
DieterGraef 0:f9b6112278fe 185
DieterGraef 0:f9b6112278fe 186 MRS R0,PSP /* Read PSP */
DieterGraef 0:f9b6112278fe 187 LDR R1,[R0,#24] /* Read Saved PC from Stack */
DieterGraef 0:f9b6112278fe 188 SUBS R1,R1,#2 /* Point to SVC Instruction */
DieterGraef 0:f9b6112278fe 189 LDRB R1,[R1] /* Load SVC Number */
DieterGraef 0:f9b6112278fe 190 CMP R1,#0
DieterGraef 0:f9b6112278fe 191 BNE SVC_User /* User SVC Number > 0 */
DieterGraef 0:f9b6112278fe 192
DieterGraef 0:f9b6112278fe 193 MOV LR,R4
DieterGraef 0:f9b6112278fe 194 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
DieterGraef 0:f9b6112278fe 195 MOV R12,R4
DieterGraef 0:f9b6112278fe 196 MOV R4,LR
DieterGraef 0:f9b6112278fe 197 BLX R12 /* Call SVC Function */
DieterGraef 0:f9b6112278fe 198
DieterGraef 0:f9b6112278fe 199 MRS R3,PSP /* Read PSP */
DieterGraef 0:f9b6112278fe 200 STMIA R3!,{R0-R2} /* Store return values */
DieterGraef 0:f9b6112278fe 201
DieterGraef 0:f9b6112278fe 202 LDR R3,=os_tsk
DieterGraef 0:f9b6112278fe 203 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
DieterGraef 0:f9b6112278fe 204 CMP R1,R2
DieterGraef 0:f9b6112278fe 205 BEQ SVC_Exit /* no task switch */
DieterGraef 0:f9b6112278fe 206
DieterGraef 0:f9b6112278fe 207 SUBS R3,#8
DieterGraef 0:f9b6112278fe 208 CMP R1,#0 /* Runtask deleted? */
DieterGraef 0:f9b6112278fe 209 BEQ SVC_Next
DieterGraef 0:f9b6112278fe 210
DieterGraef 0:f9b6112278fe 211 MRS R0,PSP /* Read PSP */
DieterGraef 0:f9b6112278fe 212 SUBS R0,R0,#32 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 213 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
DieterGraef 0:f9b6112278fe 214 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
DieterGraef 0:f9b6112278fe 215 MOV R4,R8
DieterGraef 0:f9b6112278fe 216 MOV R5,R9
DieterGraef 0:f9b6112278fe 217 MOV R6,R10
DieterGraef 0:f9b6112278fe 218 MOV R7,R11
DieterGraef 0:f9b6112278fe 219 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
DieterGraef 0:f9b6112278fe 220
DieterGraef 0:f9b6112278fe 221 PUSH {R2,R3}
DieterGraef 0:f9b6112278fe 222 BL rt_stk_check /* Check for Stack overflow */
DieterGraef 0:f9b6112278fe 223 POP {R2,R3}
DieterGraef 0:f9b6112278fe 224
DieterGraef 0:f9b6112278fe 225 SVC_Next:
DieterGraef 0:f9b6112278fe 226 STR R2,[R3] /* os_tsk.run = os_tsk.new */
DieterGraef 0:f9b6112278fe 227
DieterGraef 0:f9b6112278fe 228 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
DieterGraef 0:f9b6112278fe 229 ADDS R0,R0,#16 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 230 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
DieterGraef 0:f9b6112278fe 231 MOV R8,R4
DieterGraef 0:f9b6112278fe 232 MOV R9,R5
DieterGraef 0:f9b6112278fe 233 MOV R10,R6
DieterGraef 0:f9b6112278fe 234 MOV R11,R7
DieterGraef 0:f9b6112278fe 235 MSR PSP,R0 /* Write PSP */
DieterGraef 0:f9b6112278fe 236 SUBS R0,R0,#32 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 237 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
DieterGraef 0:f9b6112278fe 238
DieterGraef 0:f9b6112278fe 239 SVC_Exit:
DieterGraef 0:f9b6112278fe 240 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
DieterGraef 0:f9b6112278fe 241 MVNS R0,R0
DieterGraef 0:f9b6112278fe 242 BX R0 /* RETI to Thread Mode, use PSP */
DieterGraef 0:f9b6112278fe 243
DieterGraef 0:f9b6112278fe 244 /*------------------- User SVC ------------------------------*/
DieterGraef 0:f9b6112278fe 245
DieterGraef 0:f9b6112278fe 246 SVC_User:
DieterGraef 0:f9b6112278fe 247 PUSH {R4,LR} /* Save Registers */
DieterGraef 0:f9b6112278fe 248 LDR R2,=SVC_Count
DieterGraef 0:f9b6112278fe 249 LDR R2,[R2]
DieterGraef 0:f9b6112278fe 250 CMP R1,R2
DieterGraef 0:f9b6112278fe 251 BHI SVC_Done /* Overflow */
DieterGraef 0:f9b6112278fe 252
DieterGraef 0:f9b6112278fe 253 LDR R4,=SVC_Table-4
DieterGraef 0:f9b6112278fe 254 LSLS R1,R1,#2
DieterGraef 0:f9b6112278fe 255 LDR R4,[R4,R1] /* Load SVC Function Address */
DieterGraef 0:f9b6112278fe 256 MOV LR,R4
DieterGraef 0:f9b6112278fe 257
DieterGraef 0:f9b6112278fe 258 LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
DieterGraef 0:f9b6112278fe 259 MOV R12,R4
DieterGraef 0:f9b6112278fe 260 BLX LR /* Call SVC Function */
DieterGraef 0:f9b6112278fe 261
DieterGraef 0:f9b6112278fe 262 MRS R4,PSP /* Read PSP */
DieterGraef 0:f9b6112278fe 263 STMIA R4!,{R0-R3} /* Function return values */
DieterGraef 0:f9b6112278fe 264 SVC_Done:
DieterGraef 0:f9b6112278fe 265 POP {R4,PC} /* RETI */
DieterGraef 0:f9b6112278fe 266
DieterGraef 0:f9b6112278fe 267 .fnend
DieterGraef 0:f9b6112278fe 268 .size SVC_Handler, .-SVC_Handler
DieterGraef 0:f9b6112278fe 269
DieterGraef 0:f9b6112278fe 270
DieterGraef 0:f9b6112278fe 271 /*-------------------------- PendSV_Handler ---------------------------------*/
DieterGraef 0:f9b6112278fe 272
DieterGraef 0:f9b6112278fe 273 # void PendSV_Handler (void);
DieterGraef 0:f9b6112278fe 274
DieterGraef 0:f9b6112278fe 275 .thumb_func
DieterGraef 0:f9b6112278fe 276 .type PendSV_Handler, %function
DieterGraef 0:f9b6112278fe 277 .global PendSV_Handler
DieterGraef 0:f9b6112278fe 278 .global Sys_Switch
DieterGraef 0:f9b6112278fe 279 PendSV_Handler:
DieterGraef 0:f9b6112278fe 280 .fnstart
DieterGraef 0:f9b6112278fe 281 .cantunwind
DieterGraef 0:f9b6112278fe 282
DieterGraef 0:f9b6112278fe 283 BL rt_pop_req
DieterGraef 0:f9b6112278fe 284
DieterGraef 0:f9b6112278fe 285 Sys_Switch:
DieterGraef 0:f9b6112278fe 286 LDR R3,=os_tsk
DieterGraef 0:f9b6112278fe 287 LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
DieterGraef 0:f9b6112278fe 288 CMP R1,R2
DieterGraef 0:f9b6112278fe 289 BEQ Sys_Exit /* no task switch */
DieterGraef 0:f9b6112278fe 290
DieterGraef 0:f9b6112278fe 291 SUBS R3,#8
DieterGraef 0:f9b6112278fe 292
DieterGraef 0:f9b6112278fe 293 MRS R0,PSP /* Read PSP */
DieterGraef 0:f9b6112278fe 294 SUBS R0,R0,#32 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 295 STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
DieterGraef 0:f9b6112278fe 296 STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
DieterGraef 0:f9b6112278fe 297 MOV R4,R8
DieterGraef 0:f9b6112278fe 298 MOV R5,R9
DieterGraef 0:f9b6112278fe 299 MOV R6,R10
DieterGraef 0:f9b6112278fe 300 MOV R7,R11
DieterGraef 0:f9b6112278fe 301 STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
DieterGraef 0:f9b6112278fe 302
DieterGraef 0:f9b6112278fe 303 PUSH {R2,R3}
DieterGraef 0:f9b6112278fe 304 BL rt_stk_check /* Check for Stack overflow */
DieterGraef 0:f9b6112278fe 305 POP {R2,R3}
DieterGraef 0:f9b6112278fe 306
DieterGraef 0:f9b6112278fe 307 STR R2,[R3] /* os_tsk.run = os_tsk.new */
DieterGraef 0:f9b6112278fe 308
DieterGraef 0:f9b6112278fe 309 LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
DieterGraef 0:f9b6112278fe 310 ADDS R0,R0,#16 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 311 LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
DieterGraef 0:f9b6112278fe 312 MOV R8,R4
DieterGraef 0:f9b6112278fe 313 MOV R9,R5
DieterGraef 0:f9b6112278fe 314 MOV R10,R6
DieterGraef 0:f9b6112278fe 315 MOV R11,R7
DieterGraef 0:f9b6112278fe 316 MSR PSP,R0 /* Write PSP */
DieterGraef 0:f9b6112278fe 317 SUBS R0,R0,#32 /* Adjust Start Address */
DieterGraef 0:f9b6112278fe 318 LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
DieterGraef 0:f9b6112278fe 319
DieterGraef 0:f9b6112278fe 320 Sys_Exit:
DieterGraef 0:f9b6112278fe 321 MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
DieterGraef 0:f9b6112278fe 322 MVNS R0,R0
DieterGraef 0:f9b6112278fe 323 BX R0 /* RETI to Thread Mode, use PSP */
DieterGraef 0:f9b6112278fe 324
DieterGraef 0:f9b6112278fe 325 .fnend
DieterGraef 0:f9b6112278fe 326 .size PendSV_Handler, .-PendSV_Handler
DieterGraef 0:f9b6112278fe 327
DieterGraef 0:f9b6112278fe 328
DieterGraef 0:f9b6112278fe 329 /*-------------------------- SysTick_Handler --------------------------------*/
DieterGraef 0:f9b6112278fe 330
DieterGraef 0:f9b6112278fe 331 # void SysTick_Handler (void);
DieterGraef 0:f9b6112278fe 332
DieterGraef 0:f9b6112278fe 333 .thumb_func
DieterGraef 0:f9b6112278fe 334 .type SysTick_Handler, %function
DieterGraef 0:f9b6112278fe 335 .global SysTick_Handler
DieterGraef 0:f9b6112278fe 336 SysTick_Handler:
DieterGraef 0:f9b6112278fe 337 .fnstart
DieterGraef 0:f9b6112278fe 338 .cantunwind
DieterGraef 0:f9b6112278fe 339
DieterGraef 0:f9b6112278fe 340 BL rt_systick
DieterGraef 0:f9b6112278fe 341 B Sys_Switch
DieterGraef 0:f9b6112278fe 342
DieterGraef 0:f9b6112278fe 343 .fnend
DieterGraef 0:f9b6112278fe 344 .size SysTick_Handler, .-SysTick_Handler
DieterGraef 0:f9b6112278fe 345
DieterGraef 0:f9b6112278fe 346
DieterGraef 0:f9b6112278fe 347 /*-------------------------- OS_Tick_Handler --------------------------------*/
DieterGraef 0:f9b6112278fe 348
DieterGraef 0:f9b6112278fe 349 # void OS_Tick_Handler (void);
DieterGraef 0:f9b6112278fe 350
DieterGraef 0:f9b6112278fe 351 .thumb_func
DieterGraef 0:f9b6112278fe 352 .type OS_Tick_Handler, %function
DieterGraef 0:f9b6112278fe 353 .global OS_Tick_Handler
DieterGraef 0:f9b6112278fe 354 OS_Tick_Handler:
DieterGraef 0:f9b6112278fe 355 .fnstart
DieterGraef 0:f9b6112278fe 356 .cantunwind
DieterGraef 0:f9b6112278fe 357
DieterGraef 0:f9b6112278fe 358 BL os_tick_irqack
DieterGraef 0:f9b6112278fe 359 BL rt_systick
DieterGraef 0:f9b6112278fe 360 B Sys_Switch
DieterGraef 0:f9b6112278fe 361
DieterGraef 0:f9b6112278fe 362 .fnend
DieterGraef 0:f9b6112278fe 363 .size OS_Tick_Handler, .-OS_Tick_Handler
DieterGraef 0:f9b6112278fe 364
DieterGraef 0:f9b6112278fe 365
DieterGraef 0:f9b6112278fe 366 .end
DieterGraef 0:f9b6112278fe 367
DieterGraef 0:f9b6112278fe 368 /*----------------------------------------------------------------------------
DieterGraef 0:f9b6112278fe 369 * end of file
DieterGraef 0:f9b6112278fe 370 *---------------------------------------------------------------------------*/