[26] | 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) 2001-2010 by Industrial Technology Institute,
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| 9 | * Miyagi Prefectural Government, JAPAN
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| 10 | * Copyright (C) 2001-2004 by Dep. of Computer Science and Engineering
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| 11 | * Tomakomai National College of Technology, JAPAN
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| 12 | * Copyright (C) 2003-2004 by Katsuhiro Amano
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| 13 | *
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| 14 | * ä¸è¨èä½æ¨©è
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| 15 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 16 | * ã«ãã£ã¦å
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| 17 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 18 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 19 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 20 | å¸ï¼ä»¥ä¸ï¼
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| 21 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 22 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 23 | * 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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| 24 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 25 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼åé
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| 28 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 29 | * è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 31 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 33 | * ç¨ã§ããªãå½¢ã§åé
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| 34 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 35 | * ã¨ï¼
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| 36 | * (a) åé
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| 37 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 38 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 39 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 40 | * (b) åé
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| 41 | å¸ã®å½¢æ
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| 42 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 43 | * å ±åãããã¨ï¼
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| 44 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 45 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 46 | ããã³TOPPERSããã¸ã§ã¯ããå
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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¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 52 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 53 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 54 | *
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| 55 | * @(#) $Id: cpu_config.c,v 1.18 2007/03/23 07:22:15 honda Exp $
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| 56 | */
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| 57 |
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| 58 | #include "jsp_kernel.h"
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| 59 | #include "check.h"
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| 60 | #include "task.h"
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| 61 |
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| 62 | #include <hw_serial.h>
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| 63 |
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| 64 | /*
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| 65 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼H8ç¨ï¼
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| 66 | */
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| 67 |
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| 68 | #ifdef SUPPORT_CHG_IPM
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| 69 | /*
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| 70 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 71 | */
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| 72 | volatile UB task_intmask = 0;
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| 73 | #endif /* SUPPORT_CHG_IPM */
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| 74 |
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| 75 | /*
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| 76 | * éã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 77 | */
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| 78 |
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| 79 | volatile UB int_intmask = 0;
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| 80 |
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| 81 | /*
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| 82 | * å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿
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| 83 | */
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| 84 |
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| 85 | volatile UB intnest = 0;
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| 86 |
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| 87 | /*
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| 88 | * CPUããã¯ç¶æ
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| 89 | ã表ããã©ã°
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| 90 | *ããTRUE ï¼CPUããã¯ç¶æ
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| 91 |
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| 92 | *ããFALSEï¼CPUããã¯è§£é¤ç¶æ
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| 93 |
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| 94 | */
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| 95 | volatile BOOL iscpulocked = TRUE;
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| 96 |
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| 97 | /*
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| 98 | * ã¿ã¤ãã®ãã©ã¤ãªãªãã£ã¬ãã«è¨å®ç¨ã®ãã¼ã¿
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| 99 | * æ¬æ¥ã¯hw_timer.hã«è¨è¿°ããã¹ãã ããããããã¨
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| 100 | * hw_timer.hãã¤ã³ã¯ã«ã¼ããããã¡ã¤ã«ã§ãã¹ã¦å®ä½åããã¦
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| 101 | *ãããã¡ã¢ãªé åãå æãã¦ãã¾ããããå®ä½ã¯ããã«è¨è¿°ããã
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| 102 | */
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| 103 | const IRC TIMER_IRC = {(UB*)SYSTEM_TIMER_IPR,
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| 104 | SYSTEM_TIMER_IP_BIT,
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| 105 | SYSTEM_TIMER_IPM
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| 106 | };
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| 107 |
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| 108 | /*
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| 109 | * ãã¯ã¿ãã¼ãã«ã®åæåï¼for RedBootï¼
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| 110 | */
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| 111 | #ifdef REDBOOT
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| 112 |
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| 113 | /* VECTOR_TABLE_ADDRã¯sys_config.hã§å®ç¾©ãã */
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| 114 | extern void vector(void);
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| 115 |
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| 116 | static void
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| 117 | copy_vector_table(void)
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| 118 | {
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| 119 | UW n;
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| 120 | UW *dst = (UW *)VECTOR_TABLE_ADDR; /* ãã¯ã¿ãã¼ãã«ã³ãã¼å
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| 121 | */
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| 122 | UW *src = (UW *)vector; /* ãã¯ã¿ãã¼ãã«ã³ãã¼å
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| 123 | */
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| 124 | TMP_VECTOR tmp_vector;
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| 125 |
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| 126 | load_vector(&tmp_vector);
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| 127 | for (n = 0; n < VECTOR_SIZE; n++) {
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| 128 | *dst = JMP_OPECODE | (*src); /* jmpå½ä»¤ã®ä»å */
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| 129 | ++dst;
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| 130 | ++src;
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| 131 | }
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| 132 | save_vector(&tmp_vector);
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| 133 | }
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| 134 | #endif /* of #ifdef REDBOOT */
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| 135 |
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| 136 | /*
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| 137 | * ããã»ããµä¾åã®åæå
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| 138 | */
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| 139 |
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| 140 | #ifndef H8IPRA_INI
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| 141 | #define H8IPRA_INI 0
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| 142 | #endif /* H8IPRA_INI */
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| 143 |
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| 144 | #ifndef H8IPRB_INI
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| 145 | #define H8IPRB_INI 0
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| 146 | #endif /* H8IPRB_INI */
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| 147 |
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| 148 | void
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| 149 | cpu_initialize(void)
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| 150 | {
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| 151 | /*
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| 152 | *ãCCR ã®UIããããå²ãè¾¼ã¿ãã¹ã¯ãããã¨ãã¦ä½¿ç¨ããã
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| 153 | *ããSYSCR.UEâ0
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| 154 | */
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| 155 | bitclr((UB*)H8SYSCR, H8SYSCR_UE_BIT);
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| 156 |
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| 157 | /*
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| 158 | *ããã¹ã¦ã®å²è¾¼ã¿ãã©ã¤ãªãªãã£ãã¬ãã«ï¼ã«ãã
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| 159 | *
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| 160 | *ããã»ã¢ãã¿ãã¹ã¿ããå²è¾¼ã¿ã使ç¨ããå ´å
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| 161 | *ããããH8IPRA_INIã¨H8IPRB_INIãå®ç¾©ãã¦ãè¨å®å
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| 162 | 容ãä¿æããã
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| 163 | *ããããIERã¬ã¸ã¹ã¿ã¯ã«ã¼ãã«å´ã§å¤æ´ãã¦ããªãã®ã§ããã®ã¾ã¾ã§
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| 164 | *ããããããã
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| 165 | */
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| 166 | sil_wrb_mem((VP)H8IPRA, H8IPRA_INI);
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| 167 | sil_wrb_mem((VP)H8IPRB, H8IPRB_INI);
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| 168 |
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| 169 | SCI_initialize(SYSTEM_PORTID);
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| 170 |
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| 171 | #ifdef REDBOOT
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| 172 | copy_vector_table();
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| 173 | #endif /* of #ifdef REDBOOT */
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| 174 | }
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| 175 |
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| 176 | /*
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| 177 | * ããã»ããµä¾åã®çµäºå¦ç
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| 178 | */
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| 179 |
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| 180 | void
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| 181 | cpu_terminate(void)
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| 182 | {
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| 183 | }
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| 184 |
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| 185 | #ifdef SUPPORT_CHG_IPM
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| 186 | /*
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| 187 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 188 | *
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| 189 | *ãIPMã«è¨å®ã§ããå¤ã¨ãã¦IPM_LEVEL0ãIPM_LEVEL1ãIPM_LEVEL2ããã¯ã
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| 190 | *ãå®ç¾©ããã¦ããã
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| 191 | *
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| 192 | *
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| 193 | *ãIPM_LEVEL0ï¼ã¬ãã«ï¼ããã¹ã¦ã®å²è¾¼ã¿ãåãä»ãã
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| 194 | *ãIPM_LEVEL1ï¼ã¬ãã«ï¼ãNMIããã³ãã©ã¤ãªãªãã£ã¬ãã«ï¼ã®å²è¾¼ã¿ã®ã¿ã
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| 195 | *ããããããããããããåãä»ãã
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| 196 | *ãIPM_LEVEL2ï¼ã¬ãã«ï¼ãNMI以å¤ã®å²è¾¼ã¿ãåãä»ããªã
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| 197 | *
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| 198 | * IPM ãã¬ãã«0以å¤ã®æã«ãï¼ã¿ã¹ã¯ãã£ã¹ãããã¯ä¿çãããªãï¼IPM ã¯ï¼
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| 199 | * ã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ï¼æ°ããå®è¡ç¶æ
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| 200 | ã«ãªã£ãã¿ã¹ã¯ã¸å¼ãç¶ã
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| 201 | * ããï¼ãã®ããï¼ã¿ã¹ã¯ãå®è¡ä¸ã«ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ãå¤æ´ã
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| 202 | * ããå ´åãããï¼JSPã«ã¼ãã«ã§ã¯ï¼IPM ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ã
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| 203 | * ã³ã«ãã£ã¦ãèµ·ããã®ã§ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ãå¤æ´ããããã¨ã«
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| 204 | * ãã£ã¦ï¼æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨æãããï¼IPM ã®å¤ã«ãã£ã¦ã¿
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| 205 | * ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ï¼dis_dsp ãä½µç¨ããã°ããï¼
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| 206 | */
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| 207 | SYSCALL ER
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| 208 | chg_ipm(IPM ipm)
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| 209 | {
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| 210 | ER ercd = E_OK;
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| 211 |
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| 212 | LOG_CHG_IPM_ENTER(ipm);
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| 213 | CHECK_TSKCTX_UNL();
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| 214 | CHECK_PAR( (ipm == IPM_LEVEL0) || (ipm == IPM_LEVEL1) || (ipm == IPM_LEVEL2) );
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| 215 |
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| 216 | t_lock_cpu();
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| 217 | task_intmask = ipm;
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| 218 | t_unlock_cpu();
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| 219 |
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| 220 | exit:
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| 221 | LOG_CHG_IPM_LEAVE(ercd)
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| 222 | return(ercd);
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| 223 | }
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| 224 |
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| 225 | /*
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| 226 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 227 | §
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| 228 | */
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| 229 | SYSCALL ER
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| 230 | get_ipm(IPM *p_ipm)
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| 231 | {
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| 232 | ER ercd = E_OK;
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| 233 |
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| 234 | LOG_GET_IPM_ENTER(p_ipm);
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| 235 | CHECK_TSKCTX_UNL();
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| 236 |
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| 237 | t_lock_cpu();
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| 238 | *p_ipm = task_intmask;
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| 239 | t_unlock_cpu();
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| 240 |
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| 241 | exit:
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| 242 | LOG_GET_IPM_LEAVE(ercd, *p_ipm);
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| 243 | return(ercd);
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| 244 | }
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| 245 |
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| 246 | #endif /* SUPPORT_CHG_IPM */
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| 247 |
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| 248 | /*****以ä¸ãå
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| 249 | ±éé¨ã¨ã®ã¤ã³ã¿ã¼ãã§ã¼ã¹ã«å«ã¾ããªãé¨å*********/
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| 250 |
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| 251 | /*
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| 252 | * æªå®ç¾©å²è¾¼ã¿çºçæã®ã¨ã©ã¼åºå
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| 253 | * ããç»é²ããã¦ããªãå²è¾¼ã¿ãçºçããã¨å¼ã³åºããã
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| 254 | *
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| 255 | * ãã¹ã¿ãã¯æ§é
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| 256 | *ãã +0:er0
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| 257 | *ãã +4:er1
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| 258 | *ãã +8:er2
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| 259 | *ãã+12:er3
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| 260 | *ãã+16:er4
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| 261 | *ãã+20:er5
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| 262 | *ãã+24:er6
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| 263 | *ãã+28:crr
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| 264 | *ãã+29:pc
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| 265 | *ãã+32ã:å²è¾¼ã¿åã«ä½¿ç¨ããã¦ããã¹ã¿ãã¯é å
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| 266 | */
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| 267 |
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| 268 | /*
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| 269 | * å²è¾¼ã¿çºçç´åã®ã¹ã¿ãã¯ãã¤ã³ã¿ã¾ã§ã®ãªãã»ãã
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| 270 | */
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| 271 | #define OFFSET_SP 32u
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| 272 |
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| 273 | void cpu_experr(EXCSTACK *sp)
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| 274 | {
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| 275 | UW sp2, pc, ccr, tmp;
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| 276 |
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| 277 | sp2 = (UW)sp + OFFSET_SP;
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| 278 | tmp = sp->pc;
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| 279 | ccr = (tmp >> 24u) & 0xffu; /* ä¸ä½1ãã¤ã */
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| 280 | pc = tmp & 0x00ffffffu; /* ä¸ä½3ãã¤ã */
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| 281 |
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| 282 | syslog(LOG_EMERG, "Unexpected interrupt.");
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| 283 | syslog(LOG_EMERG, "PC = 0x%08x SP = 0x%08x CCR = 0x%02x",
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| 284 | pc, sp2, ccr);
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| 285 | syslog(LOG_EMERG, "ER0 = 0x%08x ER1 = 0x%08x ER2 = 0x%08x ER3 = 0x%08x",
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| 286 | sp->er0, sp->er1, sp->er2, sp->er3);
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| 287 | syslog(LOG_EMERG, "ER4 = 0x%08x ER5 = 0x%08x ER6 = 0x%08x",
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| 288 | sp->er4, sp->er5, sp->er6);
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| 289 | while(1)
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| 290 | ;
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| 291 | }
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| 292 |
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| 293 |
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| 294 | /*
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| 295 | * HEWã®I/Oã·ãã¥ã¬ã¼ã·ã§ã³
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| 296 | * ãè¦æ¤è¨ï¼ã¢ãã¬ã¹å¹
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| 297 | ã«ä¾åãç¾ç¶ã¯24ãããã¢ãã¬ã¹ãæ³å®ãã¦å®è£
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| 298 |
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| 299 | */
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| 300 | #ifdef HEW_SIMULATOR
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| 301 |
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| 302 | /* æ©è½ã³ã¼ãï¼2ãã¤ãï¼ */
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| 303 | #define GETC 0x0111
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| 304 | #define PUTC 0x0112
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| 305 |
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| 306 | /* HEWã®I/Oã·ãã¥ã¬ã¼ã·ã§ã³æ©è½å¼ã³åºã */
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| 307 | void hew_io_sim(UH code, void *adr);
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| 308 |
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| 309 | void hew_io_sim_putc(char c)
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| 310 | {
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| 311 | UB buf = (UB)c; /* ãããã¡ */
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| 312 | UB *parmblk = &buf; /* ãã©ã¡ã¼ã¿ããã㯠*/
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| 313 | UB **p = &parmblk; /* ããã»ãã®å
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| 314 | é ã¢ãã¬ã¹ */
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| 315 | UH code = PUTC; /* æ©è½ã³ã¼ã */
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| 316 |
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| 317 | hew_io_sim(code, p);
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| 318 | }
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| 319 |
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| 320 | extern BOOL hew_io_sim_snd_chr(char c);
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| 321 |
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| 322 | BOOL hew_io_sim_snd_chr(char c)
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| 323 | {
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| 324 | hew_io_sim_putc(c);
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| 325 | return TRUE;
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| 326 | }
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| 327 |
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| 328 | extern INT hew_io_sim_rcv_chr(void);
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| 329 |
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| 330 | INT hew_io_sim_rcv_chr(void) {
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| 331 | UB buf; /* ãããã¡ */
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| 332 | UB *parmblk = &buf; /* ãã©ã¡ã¼ã¿ããã㯠*/
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| 333 | UB **p = &parmblk; /* ããã»ãã®å
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| 334 | é ã¢ãã¬ã¹ */
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| 335 | UH code = GETC; /* æ©è½ã³ã¼ã */
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| 336 |
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| 337 | hew_io_sim(code, p);
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| 338 | return(buf);
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| 339 | }
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| 340 |
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| 341 | #endif /* HEW_SIMULATOR */
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| 342 |
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| 343 | /*
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| 344 | * ã·ã¹ãã æååºåå
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| 345 | ã®æå®
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| 346 | */
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| 347 | #ifdef HEW_SIMULATOR
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| 348 | #define CPU_PUT_CHAR(c) hew_io_sim_putc(c)
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| 349 |
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| 350 | #else /* HEW_SIMULATOR */
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| 351 | #define CPU_PUT_CHAR(c) SCI_wait_putchar(SYSTEM_SCI, c)
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| 352 |
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| 353 | #endif /* HEW_SIMULATOR */
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| 354 |
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| 355 | void
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| 356 | cpu_putc(char c)
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| 357 | {
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| 358 | if (c == '\n') {
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| 359 | CPU_PUT_CHAR('\r');
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| 360 | }
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| 361 | CPU_PUT_CHAR(c);
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| 362 | }
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| 363 |
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| 364 | /*
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| 365 | * local_memcpy
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| 366 | *
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| 367 | * æ¨æº C ã©ã¤ãã©ãªã® memcpy ã¨åããä½æ°´æºã³ãã¼é¢æ°
|
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| 368 | * ãªã³ã¯æã«ã¨ã©ã¼ãçºçãããããååãå¤ãã¦ããã
|
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| 369 | * ã¾ãããªã³ã¯ã¹ã¯ãªããã®æå¾ã®è¡ã«
|
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| 370 | *
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| 371 | * PROVIDE(_memcpy = _local_memcpy);
|
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| 372 | *
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| 373 | * ã追å ããã
|
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| 374 | *
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| 375 | * eepmov.wå½ä»¤ã使ãæ¹ãå¹ççã ãããã¼ã¿è»¢éä¸ã¯ï¼é·ãæéï¼
|
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| 376 | * å²è¾¼ã¿ç¦æ¢ã«ãªã£ã¦ãã¾ãã®ã§ã使ç¨ãã¦ããªãã
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| 377 | */
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| 378 |
|
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| 379 | void *
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| 380 | local_memcpy (void *out, const void *in, size_t n)
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| 381 | {
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| 382 | char *o = out;
|
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| 383 | const char *i = in;
|
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| 384 |
|
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| 385 | while (n > 0) {
|
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| 386 | *o = *i;
|
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| 387 | ++o;
|
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| 388 | ++i;
|
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| 389 | --n;
|
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| 390 | }
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| 391 | return out;
|
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| 392 | }
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| 393 |
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