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) 2003 by Advanced Data Controls, Corp
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9 | * Copyright (C) 2004 by Embedded and Real-Time Systems Laboratory
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10 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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11 | * Copyright (C) 2006 by GJ Business Division RICOH COMPANY,LTD. JAPAN
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12 | *
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13 | * ä¸è¨èä½æ¨©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®èä½æ¨©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 | * ä½æ¨©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¨èä½æ¨©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¨èä½æ¨©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«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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53 | *
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54 | * @(#) $Id$
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55 | */
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56 |
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57 | /*
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58 | * ã¿ã¼ã²ããã·ã¹ãã ä¾åã¢ã¸ã¥ã¼ã«ï¼At91sam7sç¨ï¼
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59 | */
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60 |
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61 | #include "jsp_kernel.h"
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62 | #include <at91sam7s.h>
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63 |
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64 |
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65 | /*interrupt mask*/
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66 | UW int_mode_table[MAX_INT_NUM]={
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67 | 0,
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68 | 0,
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69 | 0,
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70 | 0,
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71 | 0,
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72 | 0,
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73 | SMR_US0,
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74 | SMR_US1,
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75 | 0,
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76 | 0,
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77 | 0,
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78 | 0,
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79 | SMR_TC0,
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80 | SMR_TC1,
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81 | SMR_TC2,
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82 | 0,
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83 | 0,
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84 | 0,
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85 | 0,
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86 | 0,
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87 | 0,
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88 | 0,
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89 | 0,
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90 | 0,
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91 | 0,
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92 | 0,
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93 | 0,
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94 | 0,
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95 | 0,
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96 | 0,
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97 | 0,
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98 | 0
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99 | };
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100 |
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101 | /*
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102 | * ã¿ã¼ã²ããã·ã¹ãã ä¾åã®åæå
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103 | */
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104 | void
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105 | sys_initialize()
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106 | {
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107 | unsigned int baud = ((MCK * 10) / (115200 * 16));
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108 | unsigned long brgr;
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109 |
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110 | #ifndef VECTOR_IN_ROM
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111 | /*
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112 | * ARMã®ãã¯ã¿ãã¼ãã«ã¸å²è¾¼ã¿ãã³ãã©ãç»é²
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113 | */
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114 | arm_install_handler(IRQ_Number,IRQ_Handler);
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115 | #endif
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116 |
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117 | /*
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118 | * sys_putc ãå¯è½ã«ãªãããã«UARTãåæå
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119 | */
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120 | brgr = baud / 10;
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121 | if((baud % 10) >= 5)
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122 | brgr = (baud / 10) + 1;
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123 | sil_wrw_mem((VP)(TADR_PIO_BASE+TOFF_PIO_PDR), (1<<9)|(1<<10));
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124 | sil_wrw_mem((VP)(TADR_DBGU_BASE+TOFF_US_IDR), 0xFFFFFFFF);
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125 | sil_wrw_mem((VP)(TADR_DBGU_BASE+TOFF_US_CR), US_RSTRX|US_RSTTX|US_RXDIS|US_TXDIS);
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126 | sil_wrw_mem((VP)(TADR_DBGU_BASE+TOFF_US_BRGR), brgr);
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127 | sil_wrw_mem((VP)(TADR_DBGU_BASE+TOFF_US_MR), 4<<9);
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128 | sil_wrw_mem((VP)(TADR_DBGU_BASE+TOFF_US_CR), US_TXEN|US_RXEN);
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129 | }
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130 |
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131 |
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132 | /*
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133 | * ã¿ã¼ã²ããã·ã¹ãã ã®çµäº
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134 | */
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135 | void
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136 | sys_exit(void)
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137 | {
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138 | syslog(LOG_EMERG, "End Kernel.....!");
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139 | while(1);
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140 | }
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141 |
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142 |
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143 | /*
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144 | * ã¿ã¼ã²ããã·ã¹ãã ã®æååºå
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145 | */
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146 |
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147 | void
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148 | sys_putc(char c)
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149 | {
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150 | if (c == '\n') {
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151 | uart_putc('\r');
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152 | }
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153 | uart_putc(c);
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154 | }
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155 |
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156 |
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157 | /*
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158 | * å²è¾¼ã¿ãã³ãã©ã®è¨å®
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159 | *
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160 | * å²è¾¼ã¿çªå· inhno ã®å²è¾¼ã¿ãã³ãã©ã®èµ·åçªå°ã inthdr ã«è¨å®ããï¼
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161 | */
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162 | void
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163 | define_inh(INHNO inhno, FP inthdr)
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164 | {
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165 | assert(inhno < MAX_INT_NUM);
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166 | sil_wrw_mem((VP)(TADR_AIC_BASE+TOFF_AIC_IDCR), 1<<inhno);
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167 | sil_wrw_mem((VP)(TADR_AIC_BASE+TOFF_AIC_SVR+inhno*4), (UW)inthdr);
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168 | sil_wrw_mem((VP)(TADR_AIC_BASE+TOFF_AIC_SMR+inhno*4), int_mode_table[inhno]);
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169 | sil_wrw_mem((VP)(TADR_AIC_BASE+TOFF_AIC_ICCR), 1<<inhno);
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170 | sil_wrw_mem((VP)(TADR_AIC_BASE+TOFF_AIC_IECR), 1<<inhno);
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171 | }
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172 |
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173 | /*
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174 | * æªå®ç¾©ã®å²è¾¼ã¿ãå
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175 | ¥ã£ãå ´åã®å¦ç
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176 | */
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177 | void
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178 | undef_interrupt(){
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179 | syslog(LOG_EMERG, "Unregistered Interrupt occurs.");
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180 | while(1);
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181 | }
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182 |
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