begriffs open source - cmsis-freertos/blob - Demo/CORTEX_M0_LPC1114_LPCXpresso/RTOSDemo/Source/RegTest.c

   1 /*
   2  * FreeRTOS Kernel V10.0.1
   3  * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy of
   6  * this software and associated documentation files (the "Software"), to deal in
   7  * the Software without restriction, including without limitation the rights to
   8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
   9  * the Software, and to permit persons to whom the Software is furnished to do so,
  10  * subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in all
  13  * copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * http://www.FreeRTOS.org
  23  * http://aws.amazon.com/freertos
  24  *
  25  * 1 tab == 4 spaces!
  26  */
  27
  28 void vRegTest1Task( void ) __attribute__((naked));
  29 void vRegTest2Task( void ) __attribute__((naked));
  30
  31 void vRegTest1Task( void )
  32 {
  33         __asm volatile
  34         (
  35                 ".extern ulRegTest1LoopCounter          \n"
  36                 "                                                                       \n"
  37                 "       /* Fill the core registers with known values. */ \n"
  38                 "       movs r1, #101                                   \n"
  39                 "       movs r2, #102                                   \n"
  40                 "       movs r3, #103                                   \n"
  41                 "       movs r4, #104                                   \n"
  42                 "       movs r5, #105                                   \n"
  43                 "       movs r6, #106                                   \n"
  44                 "       movs r7, #107                                   \n"
  45                 "       movs r0, #108                                   \n"
  46                 "       mov      r8, r0                                         \n"
  47                 "       movs r0, #109                                   \n"
  48                 "       mov  r9, r0                                             \n"
  49                 "       movs r0, #110                                   \n"
  50                 "       mov      r10, r0                                        \n"
  51                 "       movs r0, #111                                   \n"
  52                 "       mov      r11, r0                                        \n"
  53                 "       movs r0, #112                                   \n"
  54                 "       mov  r12, r0                                    \n"
  55                 "       movs r0, #100                                   \n"
  56                 "                                                                       \n"
  57                 "reg1_loop:                                                     \n"
  58                 "                                                                       \n"
  59                 "       cmp     r0, #100                                        \n"
  60                 "       bne     reg1_error_loop                         \n"
  61                 "       cmp     r1, #101                                        \n"
  62                 "       bne     reg1_error_loop                         \n"
  63                 "       cmp     r2, #102                                        \n"
  64                 "       bne     reg1_error_loop                         \n"
  65                 "       cmp r3, #103                                    \n"
  66                 "       bne     reg1_error_loop                         \n"
  67                 "       cmp     r4, #104                                        \n"
  68                 "       bne     reg1_error_loop                         \n"
  69                 "       cmp     r5, #105                                        \n"
  70                 "       bne     reg1_error_loop                         \n"
  71                 "       cmp     r6, #106                                        \n"
  72                 "       bne     reg1_error_loop                         \n"
  73                 "       cmp     r7, #107                                        \n"
  74                 "       bne     reg1_error_loop                         \n"
  75                 "       movs r0, #108                                   \n"
  76                 "       cmp     r8, r0                                          \n"
  77                 "       bne     reg1_error_loop                         \n"
  78                 "       movs r0, #109                                   \n"
  79                 "       cmp     r9, r0                                          \n"
  80                 "       bne     reg1_error_loop                         \n"
  81                 "       movs r0, #110                                   \n"
  82                 "       cmp     r10, r0                                         \n"
  83                 "       bne     reg1_error_loop                         \n"
  84                 "       movs r0, #111                                   \n"
  85                 "       cmp     r11, r0                                         \n"
  86                 "       bne     reg1_error_loop                         \n"
  87                 "       movs r0, #112                                   \n"
  88                 "       cmp     r12, r0                                         \n"
  89                 "       bne     reg1_error_loop                         \n"
  90                 "                                                                       \n"
  91                 "       /* Everything passed, increment the loop counter. */ \n"
  92                 "       push { r1 }                                             \n"
  93                 "       ldr     r0, =ulRegTest1LoopCounter      \n"
  94                 "       ldr r1, [r0]                                    \n"
  95                 "       add r1, r1, #1                                  \n"
  96                 "       str r1, [r0]                                    \n"
  97                 "       pop { r1 }                                              \n"
  98                 "                                                                       \n"
  99                 "       /* Start again. */                              \n"
 100                 "       movs r0, #100                                   \n"
 101                 "       b reg1_loop                                             \n"
 102                 "                                                                       \n"
 103                 "reg1_error_loop:                                       \n"
 104                 "       /* If this line is hit then there was an error in a core register value.        \n"
 105                 "       The loop ensures the loop counter stops incrementing. */                                        \n"
 106                 "       b reg1_error_loop                               \n"
 107                 "       nop                                                             \n"
 108         );
 109 }
 110 /*-----------------------------------------------------------*/
 111
 112 void vRegTest2Task( void )
 113 {
 114         __asm volatile
 115         (
 116                 ".extern ulRegTest2LoopCounter          \n"
 117                 "                                                                       \n"
 118                 "       /* Fill the core registers with known values. */ \n"
 119                 "       movs r1, #1                                             \n"
 120                 "       movs r2, #2                                             \n"
 121                 "       movs r3, #3                                             \n"
 122                 "       movs r4, #4                                             \n"
 123                 "       movs r5, #5                                             \n"
 124                 "       movs r6, #6                                             \n"
 125                 "       movs r7, #7                                             \n"
 126                 "       movs r0, #8                                             \n"
 127                 "       movs r8, r0                                             \n"
 128                 "       movs r0, #9                                             \n"
 129                 "       mov  r9, r0                                             \n"
 130                 "       movs r0, #10                                    \n"
 131                 "       mov      r10, r0                                        \n"
 132                 "       movs r0, #11                                    \n"
 133                 "       mov      r11, r0                                        \n"
 134                 "       movs r0, #12                                    \n"
 135                 "       mov  r12, r0                                    \n"
 136                 "       movs r0, #10                                    \n"
 137                 "                                                                       \n"
 138                 "reg2_loop:                                                     \n"
 139                 "                                                                       \n"
 140                 "       cmp     r0, #10                                         \n"
 141                 "       bne     reg2_error_loop                         \n"
 142                 "       cmp     r1, #1                                          \n"
 143                 "       bne     reg2_error_loop                         \n"
 144                 "       cmp     r2, #2                                          \n"
 145                 "       bne     reg2_error_loop                         \n"
 146                 "       cmp r3, #3                                              \n"
 147                 "       bne     reg2_error_loop                         \n"
 148                 "       cmp     r4, #4                                          \n"
 149                 "       bne     reg2_error_loop                         \n"
 150                 "       cmp     r5, #5                                          \n"
 151                 "       bne     reg2_error_loop                         \n"
 152                 "       cmp     r6, #6                                          \n"
 153                 "       bne     reg2_error_loop                         \n"
 154                 "       cmp     r7, #7                                          \n"
 155                 "       bne     reg2_error_loop                         \n"
 156                 "       movs r0, #8                                             \n"
 157                 "       cmp     r8, r0                                          \n"
 158                 "       bne     reg2_error_loop                         \n"
 159                 "       movs r0, #9                                             \n"
 160                 "       cmp     r9, r0                                          \n"
 161                 "       bne     reg2_error_loop                         \n"
 162                 "       movs r0, #10                                    \n"
 163                 "       cmp     r10, r0                                         \n"
 164                 "       bne     reg2_error_loop                         \n"
 165                 "       movs r0, #11                                    \n"
 166                 "       cmp     r11, r0                                         \n"
 167                 "       bne     reg2_error_loop                         \n"
 168                 "       movs r0, #12                                    \n"
 169                 "       cmp     r12, r0                                         \n"
 170                 "       bne     reg2_error_loop                         \n"
 171                 "                                                                       \n"
 172                 "       /* Everything passed, increment the loop counter. */ \n"
 173                 "       push { r1 }                                             \n"
 174                 "       ldr     r0, =ulRegTest2LoopCounter      \n"
 175                 "       ldr r1, [r0]                                    \n"
 176                 "       add r1, r1, #1                                  \n"
 177                 "       str r1, [r0]                                    \n"
 178                 "       pop { r1 }                                              \n"
 179                 "                                                                       \n"
 180                 "       /* Start again. */                              \n"
 181                 "       movs r0, #10                                    \n"
 182                 "       b reg2_loop                                             \n"
 183                 "                                                                       \n"
 184                 "reg2_error_loop:                                       \n"
 185                 "       /* If this line is hit then there was an error in a core register value.        \n"
 186                 "       The loop ensures the loop counter stops incrementing. */                                        \n"
 187                 "       b reg2_error_loop                               \n"
 188                 "       nop                                                             \n"
 189         );
 190 }
 191 /*-----------------------------------------------------------*/
 192
 193
 194
 195