1 | /*
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2 | * TOPPERS/JSP Kernel
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3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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4 | * Just Standard Profile Kernel
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5 | *
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6 | * Copyright (C) 2000-2004 by Embedded and Real-Time Systems Laboratory
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7 | * Toyohashi Univ. of Technology, JAPAN
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8 | * Copyright (C) 2001-2007 by Dep. of Computer Science and Engineering
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9 | * Tomakomai National College of Technology, JAPAN
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10 | * Copyright (C) 2001-2004 by Industrial Technology Institute,
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11 | * Miyagi Prefectural Government, JAPAN
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12 | *
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13 | * ä¸è¨è使¨©è
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14 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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15 | * ã«ãã£ã¦å
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16 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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17 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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18 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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19 | å¸ï¼ä»¥ä¸ï¼
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20 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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21 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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22 | * 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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23 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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24 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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25 | * ç¨ã§ããå½¢ã§åé
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26 | å¸ããå ´åã«ã¯ï¼åé
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27 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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28 | * è
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29 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è使¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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30 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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31 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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32 | * ç¨ã§ããªãå½¢ã§åé
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33 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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34 | * ã¨ï¼
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35 | * (a) åé
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36 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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37 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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38 | * 使¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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39 | * (b) åé
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40 | å¸ã®å½¢æ
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41 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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42 | * å ±åãããã¨ï¼
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43 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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44 | * 害ãããï¼ä¸è¨è使¨©è
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45 | ããã³TOPPERSããã¸ã§ã¯ããå
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46 | 責ãããã¨ï¼
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47 | *
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48 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨è使¨©è
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49 | ã
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50 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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51 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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52 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæå®³ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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53 | */
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54 |
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55 | /*
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56 | * ã¿ã¹ã¯ã³ã³ããã¹ãæä½ã«ã¼ãã³
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57 | *
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58 | * ãã®ãã¡ã¤ã«ã cpu_conf.h ã¨åé¢ãã¦ããã®ã¯ï¼ãã®ãã¡ã¤ã«ã¯TCBã
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59 | * å®ç¾©ãããå¾ã«èªãå¿
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60 | è¦ãããã®ã«å¯¾ãã¦ï¼cpu_conf.h ã«ã¯TCBãå®ç¾©ã
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61 | * ãåã«èªãå¿
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62 | è¦ãããå®ç¾©ãå«ãã§ããããã§ããï¼
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63 | */
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64 |
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65 | #ifndef _CPU_CONTEXT_H_
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66 | #define _CPU_CONTEXT_H_
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67 |
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68 | #include "task.h"
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69 |
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70 | /*
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71 | * ã¿ã¹ã¯ã³ã³ããã¹ããããã¯ã®åæå
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72 | *
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73 | * ã¿ã¹ã¯ã伿¢ç¶æ
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74 | ã«ç§»è¡ããæï¼ã¿ã¹ã¯ã®çææï¼ã¿ã¹ã¯ã®çµäºæï¼ã«å¼
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75 | * ã°ããï¼åºæ¬çã«ã¯ï¼ã¿ã¹ã¯ã³ã³ããã¹ããããã¯ãã¿ã¹ã¯ãèµ·åã§ãã
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76 | * ç¶æ
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77 | ã«è¨å®ããå¦çãï¼create_context 㨠activate_context ã§è¡ãã°
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78 | * ããï¼å¤ãã®å¦çã¯ã©ã¡ãã®é¢æ°ã§è¡ã£ã¦ãããï¼
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79 | */
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80 | Inline void
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81 | create_context(TCB *tcb)
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82 | {
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83 | }
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84 |
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85 | /*
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86 | * ã¿ã¹ã¯ã®èµ·åæºå
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87 | *
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88 | * ã¿ã¹ã¯ã伿¢ç¶æ
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89 | ããå®è¡ã§ããç¶æ
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90 | ã«ç§»è¡ããæã«å¼ã°ããï¼
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91 | *
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92 | * ã¹ã¿ãã¯ä¸ã«ã¯ä½ãç©ã¾ãªã
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93 | * activate_rã§ã¯runtskããå¿
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94 | è¦ãªæ
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95 | å ±ãåãåºããã®ã§ã
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96 | * ã¹ã¿ãã¯ã«ç©ãå¿
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97 | è¦ã¯ãªãï¼å¹çãæªãï¼
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98 | *
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99 | */
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100 |
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101 | extern void activate_r(void); /* cpu_support.src */
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102 |
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103 | Inline void
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104 | activate_context(TCB *tcb)
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105 | {
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106 | VW *sp;
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107 |
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108 | sp = (VW *)(((VB *) tcb->tinib->stk) + tcb->tinib->stksz);
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109 | tcb->tskctxb.sp = sp;
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110 | tcb->tskctxb.pc = (FP)activate_r;
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111 | }
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112 |
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113 |
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114 | /*
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115 | * ext_tsk ãã¹ã¿ãã¯ä¸ã«ç¢ºä¿ããããã¼é åã®ãµã¤ãº
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116 | * ACTIVATED_STACK_SIZEã¯ãH8Sã§ã¯å®ç¾©ããå¿
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117 | è¦ã¯ç¡ãã
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118 | */
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119 |
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120 | /*
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121 | * calltex ã¯ä½¿ç¨ããªã
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122 | */
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123 | #define OMIT_CALLTEX
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124 |
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125 | #endif /* _CPU_CONTEXT_H_ */
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