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) 2000-2003 by Embedded and Real-Time Systems Laboratory
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7 | * Toyohashi Univ. of Technology, JAPAN
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8 | * Copyright (C) 2007 by KURUSUGAWA Electronics Industry Inc, JAPAN
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9 | * Copyright (C) 2008 by Takahisa Yokota
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10 | *
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11 | * ä¸è¨è使¨©è
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12 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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13 | * ã«ãã£ã¦å
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14 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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15 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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16 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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17 | å¸ï¼ä»¥ä¸ï¼
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18 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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19 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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20 | * 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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21 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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22 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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23 | * ç¨ã§ããå½¢ã§åé
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24 | å¸ããå ´åã«ã¯ï¼åé
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25 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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26 | * è
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27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è使¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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28 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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29 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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30 | * ç¨ã§ããªãå½¢ã§åé
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31 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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32 | * ã¨ï¼
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33 | * (a) åé
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34 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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35 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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36 | * 使¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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37 | * (b) åé
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38 | å¸ã®å½¢æ
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39 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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40 | * å ±åãããã¨ï¼
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41 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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42 | * 害ãããï¼ä¸è¨è使¨©è
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43 | ããã³TOPPERSããã¸ã§ã¯ããå
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44 | 責ãããã¨ï¼
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45 | *
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46 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨è使¨©è
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47 | ã
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48 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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49 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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50 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæå®³ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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51 | *
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52 | * @(#) $Id: start.S,v 1.6 2003/06/04 01:51:39 hiro Exp $
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53 | */
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54 |
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55 | /*
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56 | * ã«ã¼ãã«ç¨ã®ã¹ã¿ã¼ãã¢ããã¢ã¸ã¥ã¼ã«ï¼COLDFIREç¨ï¼
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57 | */
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58 |
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59 | #define _MACRO_ONLY
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60 | #include <t_config.h>
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61 | /*
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62 | *ããä¾å¤ãã¯ã¿ã®å®ç¾©ï¼COLDFIREç¨ï¼
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63 | *ãããããã§ã¯ãªã»ããæã«å¿
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64 | è¦ãªæä½éã®ãã¯ã¿ããç¨æããªã
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65 | *ãããcpu_initialize()ã§ä¾å¤ãã¯ã¿ã®ç§»åï¼VBRã®æ¸ãæãï¼ãè¡ã
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66 | */
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67 | #ifdef KERNEL_HAS_A_VECTOR_TABLE
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68 |
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69 | /*
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70 | * 以ä¸ã®ä¾å¤è¦å ã§ããã©ã«ãã¨ã¯ç°ãªãä¾å¤ãã¯ã¿ãå®ç¾©
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71 | * ããå ´åã¯ãsys_config.hã§è©²å½ãããã¯ããå®ç¾©ããã
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72 | */
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73 | .section ".vector","ax"
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74 | .align 2
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75 | .long INIT_STACK /* 0:ã¹ã¿ãã¯ãã¤ã³ã¿ã®åæå¤ */
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76 | .long TO_ASM(RESET_VECTOR) /* 1:ãã¯ã¼ãªã³ãªã»ãã */
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77 | .long TO_ASM(ACC_VECTOR) /* 2:ã¢ã¯ã»ã¹ã¨ã©ã¼ */
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78 | .long TO_ASM(ADD_VECTOR) /* 3:ã¢ãã¬ã¹ã¨ã©ã¼ */
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79 | .long TO_ASM(II_VECTOR) /* 4:ä¸è¬ä¸å½å½ä»¤ */
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80 | .long TO_ASM(RESERVED_VECTOR) /* 5:d zero */
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81 | .long TO_ASM(RESERVED_VECTOR) /* 6:äºç´ */
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82 | .long TO_ASM(II_VECTOR) /* 7:ã·ã¹ãã äºç´ */
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83 | .long TO_ASM(RESERVED_VECTOR) /* 8:pvã·ã¹ãã äºç´ */
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84 | .long TO_ASM(RESERVED_VECTOR) /* 9:trace */
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85 | .long TO_ASM(RESERVED_VECTOR) /* 10:line a emulator */
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86 | .long TO_ASM(RESERVED_VECTOR) /* 11:line f emulator */
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87 | .long TO_ASM(RESERVED_VECTOR) /* 12:ã·ã¹ãã äºç´ */
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88 | .long TO_ASM(RESERVED_VECTOR) /* 13:ã·ã¹ãã äºç´ */
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89 | .long TO_ASM(RESERVED_VECTOR) /* 14:ã·ã¹ãã äºç´ */
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90 | .long TO_ASM(RESERVED_VECTOR) /* 15:ã·ã¹ãã äºç´ */
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91 | .long TO_ASM(RESERVED_VECTOR) /* 16:ã·ã¹ãã äºç´ */
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92 | .long TO_ASM(RESERVED_VECTOR) /* 17:ã·ã¹ãã äºç´ */
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93 | .long TO_ASM(RESERVED_VECTOR) /* 18:ã·ã¹ãã äºç´ */
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94 | .long TO_ASM(RESERVED_VECTOR) /* 19:ã·ã¹ãã äºç´ */
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95 | .long TO_ASM(RESERVED_VECTOR) /* 20:ã·ã¹ãã äºç´ */
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96 | .long TO_ASM(RESERVED_VECTOR) /* 21:ã·ã¹ãã äºç´ */
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97 | .long TO_ASM(RESERVED_VECTOR) /* 22:ã·ã¹ãã äºç´ */
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98 | .long TO_ASM(RESERVED_VECTOR) /* 23:ã·ã¹ãã äºç´ */
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99 | .long TO_ASM(RESERVED_VECTOR) /* 24:ã¹ããªã¢ã¹å²ã込㿠*/
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100 | .long TO_ASM(RESERVED_VECTOR) /* æ®ãã¯ããã©ã«ãã®ä¾å¤å¦ç */
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101 | .long TO_ASM(RESERVED_VECTOR)
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102 | .long TO_ASM(RESERVED_VECTOR)
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103 | .long TO_ASM(RESERVED_VECTOR)
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104 | .long TO_ASM(RESERVED_VECTOR)
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105 | .long TO_ASM(RESERVED_VECTOR)
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106 | .long TO_ASM(RESERVED_VECTOR)
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107 | .long TO_ASM(RESERVED_VECTOR)
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108 | .long TO_ASM(RESERVED_VECTOR)
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109 | .long TO_ASM(RESERVED_VECTOR)
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110 | .long TO_ASM(RESERVED_VECTOR)
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111 | .long TO_ASM(RESERVED_VECTOR)
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112 | .long TO_ASM(RESERVED_VECTOR)
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113 | .long TO_ASM(RESERVED_VECTOR)
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114 | .long TO_ASM(RESERVED_VECTOR)
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115 | .long TO_ASM(RESERVED_VECTOR)
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116 | .long TO_ASM(RESERVED_VECTOR)
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117 | .long TO_ASM(RESERVED_VECTOR)
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118 | .long TO_ASM(RESERVED_VECTOR)
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119 | .long TO_ASM(RESERVED_VECTOR)
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120 | .long TO_ASM(RESERVED_VECTOR)
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121 | .long TO_ASM(RESERVED_VECTOR)
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122 | .long TO_ASM(RESERVED_VECTOR)
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123 | .long TO_ASM(RESERVED_VECTOR)
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124 | .long TO_ASM(RESERVED_VECTOR)
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125 | .long TO_ASM(RESERVED_VECTOR)
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126 | .long TO_ASM(RESERVED_VECTOR)
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127 | .long TO_ASM(RESERVED_VECTOR)
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128 | .long TO_ASM(RESERVED_VECTOR)
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129 | .long TO_ASM(RESERVED_VECTOR)
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130 | .long TO_ASM(RESERVED_VECTOR)
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131 | .long TO_ASM(RESERVED_VECTOR)
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132 | .long TO_ASM(RESERVED_VECTOR)
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133 | .long TO_ASM(RESERVED_VECTOR)
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134 | .long TO_ASM(RESERVED_VECTOR)
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135 | .long TO_ASM(RESERVED_VECTOR)
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136 | .long TO_ASM(RESERVED_VECTOR)
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137 | .long TO_ASM(RESERVED_VECTOR)
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138 | .long TO_ASM(RESERVED_VECTOR)
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139 | .long TO_ASM(RESERVED_VECTOR)
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140 | .long TO_ASM(RESERVED_VECTOR)
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141 | .long TO_ASM(RESERVED_VECTOR)
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142 | .long TO_ASM(RESERVED_VECTOR)
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143 | .long TO_ASM(RESERVED_VECTOR)
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144 | .long TO_ASM(RESERVED_VECTOR)
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145 | .long TO_ASM(RESERVED_VECTOR)
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146 | .long TO_ASM(RESERVED_VECTOR)
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147 | .long TO_ASM(RESERVED_VECTOR)
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148 | .long TO_ASM(RESERVED_VECTOR)
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149 | .long TO_ASM(RESERVED_VECTOR)
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150 | .long TO_ASM(RESERVED_VECTOR)
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151 | .long TO_ASM(RESERVED_VECTOR)
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152 | .long TO_ASM(RESERVED_VECTOR)
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153 | .long TO_ASM(RESERVED_VECTOR)
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154 | .long TO_ASM(RESERVED_VECTOR)
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155 | .long TO_ASM(RESERVED_VECTOR)
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156 | .long TO_ASM(RESERVED_VECTOR)
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157 | .long TO_ASM(RESERVED_VECTOR)
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158 | .long TO_ASM(RESERVED_VECTOR)
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159 | .long TO_ASM(RESERVED_VECTOR)
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160 | .long TO_ASM(RESERVED_VECTOR)
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161 | .long TO_ASM(RESERVED_VECTOR)
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162 | .long TO_ASM(RESERVED_VECTOR)
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163 | .long TO_ASM(RESERVED_VECTOR)
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164 | .long TO_ASM(RESERVED_VECTOR)
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165 | .long TO_ASM(RESERVED_VECTOR)
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166 | .long TO_ASM(RESERVED_VECTOR)
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167 | .long TO_ASM(RESERVED_VECTOR)
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168 | .long TO_ASM(RESERVED_VECTOR)
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169 | .long TO_ASM(RESERVED_VECTOR)
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170 | .long TO_ASM(RESERVED_VECTOR)
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171 | .long TO_ASM(RESERVED_VECTOR)
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172 | .long TO_ASM(RESERVED_VECTOR)
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173 | .long TO_ASM(RESERVED_VECTOR)
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174 | .long TO_ASM(RESERVED_VECTOR)
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175 | .long TO_ASM(RESERVED_VECTOR)
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176 | .long TO_ASM(RESERVED_VECTOR)
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177 | .long TO_ASM(RESERVED_VECTOR)
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178 | .long TO_ASM(RESERVED_VECTOR)
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179 | .long TO_ASM(RESERVED_VECTOR)
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180 | .long TO_ASM(RESERVED_VECTOR)
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181 | .long TO_ASM(RESERVED_VECTOR)
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182 | .long TO_ASM(RESERVED_VECTOR)
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183 | .long TO_ASM(RESERVED_VECTOR)
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184 | .long TO_ASM(RESERVED_VECTOR)
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185 | .long TO_ASM(RESERVED_VECTOR)
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186 | .long TO_ASM(RESERVED_VECTOR)
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187 | .long TO_ASM(RESERVED_VECTOR)
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188 | .long TO_ASM(RESERVED_VECTOR)
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189 | .long TO_ASM(RESERVED_VECTOR)
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190 | .long TO_ASM(RESERVED_VECTOR)
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191 | .long TO_ASM(RESERVED_VECTOR)
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192 | .long TO_ASM(RESERVED_VECTOR)
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193 | .long TO_ASM(RESERVED_VECTOR)
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194 | .long TO_ASM(RESERVED_VECTOR)
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195 | .long TO_ASM(RESERVED_VECTOR)
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196 | .long TO_ASM(RESERVED_VECTOR)
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197 | .long TO_ASM(RESERVED_VECTOR)
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198 | .long TO_ASM(RESERVED_VECTOR)
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199 | .long TO_ASM(RESERVED_VECTOR)
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200 | .long TO_ASM(RESERVED_VECTOR)
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201 | .long TO_ASM(RESERVED_VECTOR)
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202 | .long TO_ASM(RESERVED_VECTOR)
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203 | .long TO_ASM(RESERVED_VECTOR)
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204 | .long TO_ASM(RESERVED_VECTOR)
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205 | .long TO_ASM(RESERVED_VECTOR)
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206 | .long TO_ASM(RESERVED_VECTOR)
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207 | .long TO_ASM(RESERVED_VECTOR)
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208 | .long TO_ASM(RESERVED_VECTOR)
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209 | .long TO_ASM(RESERVED_VECTOR)
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210 | .long TO_ASM(RESERVED_VECTOR)
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211 | .long TO_ASM(RESERVED_VECTOR)
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212 | .long TO_ASM(RESERVED_VECTOR)
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213 | .long TO_ASM(RESERVED_VECTOR)
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214 | .long TO_ASM(RESERVED_VECTOR)
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215 | .long TO_ASM(RESERVED_VECTOR)
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216 | .long TO_ASM(RESERVED_VECTOR)
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217 | .long TO_ASM(RESERVED_VECTOR)
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218 | .long TO_ASM(RESERVED_VECTOR)
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219 | .long TO_ASM(RESERVED_VECTOR)
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220 | .long TO_ASM(RESERVED_VECTOR)
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221 | .long TO_ASM(RESERVED_VECTOR)
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222 | .long TO_ASM(RESERVED_VECTOR)
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223 | .long TO_ASM(RESERVED_VECTOR)
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224 | .long TO_ASM(RESERVED_VECTOR)
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225 | .long TO_ASM(RESERVED_VECTOR)
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226 | .long TO_ASM(RESERVED_VECTOR)
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227 | .long TO_ASM(RESERVED_VECTOR)
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228 | .long TO_ASM(RESERVED_VECTOR)
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229 | .long TO_ASM(RESERVED_VECTOR)
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230 | .long TO_ASM(RESERVED_VECTOR)
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231 | .long TO_ASM(RESERVED_VECTOR)
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232 | .long TO_ASM(RESERVED_VECTOR)
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233 | .long TO_ASM(RESERVED_VECTOR)
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234 | .long TO_ASM(RESERVED_VECTOR)
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235 | .long TO_ASM(RESERVED_VECTOR)
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236 | .long TO_ASM(RESERVED_VECTOR)
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237 | .long TO_ASM(RESERVED_VECTOR)
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238 | .long TO_ASM(RESERVED_VECTOR)
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239 | .long TO_ASM(RESERVED_VECTOR)
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240 | .long TO_ASM(RESERVED_VECTOR)
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241 | .long TO_ASM(RESERVED_VECTOR)
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242 | .long TO_ASM(RESERVED_VECTOR)
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243 | .long TO_ASM(RESERVED_VECTOR)
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244 | .long TO_ASM(RESERVED_VECTOR)
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245 | .long TO_ASM(RESERVED_VECTOR)
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246 | .long TO_ASM(RESERVED_VECTOR)
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247 | .long TO_ASM(RESERVED_VECTOR)
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248 | .long TO_ASM(RESERVED_VECTOR)
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249 | .long TO_ASM(RESERVED_VECTOR)
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250 | .long TO_ASM(RESERVED_VECTOR)
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251 | .long TO_ASM(RESERVED_VECTOR)
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252 | .long TO_ASM(RESERVED_VECTOR)
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253 | .long TO_ASM(RESERVED_VECTOR)
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254 | .long TO_ASM(RESERVED_VECTOR)
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255 | .long TO_ASM(RESERVED_VECTOR)
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256 | .long TO_ASM(RESERVED_VECTOR)
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257 | .long TO_ASM(RESERVED_VECTOR)
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258 | .long TO_ASM(RESERVED_VECTOR)
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259 | .long TO_ASM(RESERVED_VECTOR)
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260 | .long TO_ASM(RESERVED_VECTOR)
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261 | .long TO_ASM(RESERVED_VECTOR)
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262 | .long TO_ASM(RESERVED_VECTOR)
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263 | .long TO_ASM(RESERVED_VECTOR)
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264 | .long TO_ASM(RESERVED_VECTOR)
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265 | .long TO_ASM(RESERVED_VECTOR)
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266 | .long TO_ASM(RESERVED_VECTOR)
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267 |
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268 | /* CF-Flash Protection Field */
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269 | .org 0x400
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270 | .long 0xFFFFFFFF
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271 | .long 0xFFFFFFFF
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272 | .long 0x00000000
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273 | .long 0x00000000
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274 | .long 0x00000000
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275 | .long 0xFFFFFFFF
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276 |
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277 | #endif /* KERNEL_HAS_A_VECTOR_TABLE */
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278 | .text
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279 | .globl start
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280 | .align 2
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281 | start:
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282 | /*
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283 | * ããã»ããµã¢ã¼ãã¨ã¹ã¿ãã¯ãã¤ã³ã¿ã®åæå
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284 | */
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285 | move.l #0x2700, %d0
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286 | move.w %d0, %sr
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287 |
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288 | /* SRAMãã¼ã¹ã¢ãã¬ã¹ã®åæå */
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289 | move.l #0x20000000, %d0
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290 | add.l #0x21, %d0
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291 | .long 0x4e7b0C05 /* movec %d0, %rambar1 */
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292 |
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293 | /* ROMãã¼ã¹ã¢ãã¬ã¹ã®åæå */
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294 | move.l #0x00000000, %d0
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295 | add.l #0x21, %d0
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296 | .long 0x4e7b0C04 /* movec %d0, %flashbar */
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297 |
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298 | movea.l #INIT_STACK, %sp /* ãã¬ã¼ã ãã¤ã³ã¿ã®åæå */
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299 | movea.l #0, %fp
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300 | /*
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301 | * hardware_init_hook ã®å¼åºãï¼0 ã§ãªãå ´åï¼
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302 | *
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303 | * ã¿ã¼ã²ãããã¼ãã¦ã§ã¢ã«ä¾åãã¦å¿
|
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304 | è¦ãªåæåå¦çãããå ´å
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305 | * ã¯ï¼hardware_init_hook ã¨ãã颿°ãç¨æããï¼
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306 | */
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307 | lea hardware_init_hook, %a0
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308 | tst.l %a0
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309 | jbeq start_1
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310 | jsr %a0@
|
---|
311 | start_1:
|
---|
312 | move.l #__bss_start, %a0
|
---|
313 | move.l #_end, %d0
|
---|
314 | sub.l %a0, %d0
|
---|
315 | jbeq start_3
|
---|
316 | start_2:
|
---|
317 | clr.b (%a0)+
|
---|
318 | subq.l #1, %d0
|
---|
319 | bne start_2
|
---|
320 | clr.w %d0
|
---|
321 | subq.l #1, %d0
|
---|
322 | jbcc start_2
|
---|
323 |
|
---|
324 | /*
|
---|
325 | * dataã»ã¯ã·ã§ã³ã®åæåï¼ROMå対å¿ï¼
|
---|
326 | *
|
---|
327 | * __idata_start ãã __idata_end ã¾ã§ãï¼__data_start 以éã«
|
---|
328 | * ã³ãã¼ããï¼
|
---|
329 | */
|
---|
330 | start_3:
|
---|
331 | move.l #__idata_end, %d0
|
---|
332 | sub.l #__idata_start, %d0
|
---|
333 | jbls start_5
|
---|
334 | move.l #__idata_start, %a0
|
---|
335 | move.l #__data_start, %a1
|
---|
336 | start_4:
|
---|
337 | move.b (%a0)+, (%a1)+
|
---|
338 | subq.l #1, %d0
|
---|
339 | bne start_4
|
---|
340 | clr.w %d0
|
---|
341 | subq.l #1, %d0
|
---|
342 | jbcc start_4
|
---|
343 |
|
---|
344 | /*
|
---|
345 | * software_init_hook ãå¼åºãï¼0 ã§ãªãå ´åï¼
|
---|
346 | *
|
---|
347 | * ã½ããã¦ã§ã¢ç°å¢ï¼ç¹ã«ã©ã¤ãã©ãªï¼ã«ä¾åãã¦å¿
|
---|
348 | è¦ãªåæåå¦
|
---|
349 | * çãããå ´åã¯ï¼software_init_hook ã¨ãã颿°ãç¨æããã°
|
---|
350 | * ããï¼
|
---|
351 | */
|
---|
352 | start_5:
|
---|
353 | lea software_init_hook, %a0
|
---|
354 | tst.l %a0
|
---|
355 | jbeq start_6
|
---|
356 | jsr %a0@
|
---|
357 |
|
---|
358 | /*
|
---|
359 | * ã«ã¼ãã«ãèµ·åããï¼
|
---|
360 | */
|
---|
361 | start_6:
|
---|
362 | jmp kernel_start
|
---|