1 | /*
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2 | * TOPPERS Software
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3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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4 | *
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5 | * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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6 | * Toyohashi Univ. of Technology, JAPAN
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7 | * Copyright (C) 2006-2016 by Embedded and Real-Time Systems Laboratory
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8 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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9 | * Copyright (C) 2018 by Naoki Saito
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10 | * Nagoya Municipal Industrial Research Institute, JAPAN
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11 | *
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12 | * ä¸è¨èä½æ¨©è
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13 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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14 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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15 | * å¤ã»åé
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16 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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17 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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18 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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19 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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20 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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21 | * ç¨ã§ããå½¢ã§åé
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22 | å¸ããå ´åã«ã¯ï¼åé
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23 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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24 | * è
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25 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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26 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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27 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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28 | * ç¨ã§ããªãå½¢ã§åé
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29 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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30 | * ã¨ï¼
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31 | * (a) åé
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32 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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33 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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34 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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35 | * (b) åé
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36 | å¸ã®å½¢æ
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37 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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38 | * å ±åãããã¨ï¼
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39 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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40 | * 害ãããï¼ä¸è¨èä½æ¨©è
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41 | ããã³TOPPERSããã¸ã§ã¯ããå
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42 | 責ãããã¨ï¼
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43 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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44 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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45 | ããã³TOPPERSããã¸ã§ã¯ãã
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46 | * å
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47 | 責ãããã¨ï¼
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48 | *
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49 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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50 | ã
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51 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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52 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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53 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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54 | * ã®è²¬ä»»ãè² ããªãï¼
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55 | *
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56 | * $Id$
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57 | */
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58 |
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59 | #define TOPPERS_MACRO_ONLY
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60 | #include "kernel_impl.h"
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61 |
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62 | .text
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63 | .align 4
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64 | .global start
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65 | .global vectors
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66 | start:
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67 | msr daifset, #3 //å²è¾¼ã¿ç¦æ¢(å²è¾¼ã¿ããã¯ç¸å½)
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68 |
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69 | /*
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70 | * ä¾å¤ãã¯ã¿ãã¼ãã«ã®ãã¼ã¹ã¢ãã¬ã¹è¨å®
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71 | */
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72 | ldr x0, =vectors
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73 | msr vbar_el1, x0
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74 |
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75 | /*
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76 | * ã¹ã¿ãã¯ãã¤ã³ã¿ã¨ãã¬ã¼ã ãã¤ã³ã¿ã®åæå
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77 | */
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78 | ldr x0, =_kernel_istkpt // setup stack
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79 | ldr x0, [x0]
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80 | mov sp, x0
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81 | bl sta_ker
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82 | b .
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