[363] | 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 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 1.7 2007/03/23 07:58:33 honda Exp $
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| 56 | */
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| 57 |
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| 58 | /*
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| 59 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼H8ç¨ï¼
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| 60 | *ãããã«ã¼ãã«å
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| 61 | é¨ã§ä½¿ç¨ããå®ç¾©
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| 62 | *ããããCè¨èªé¢æ°ã®å®ä½
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| 63 | */
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| 64 |
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| 65 | #include "jsp_kernel.h"
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| 66 | #include "check.h"
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| 67 | #include "task.h"
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| 68 | #include "sil.h"
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| 69 | #include <hw_serial.h> /* SCI_putchar_pol() */
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| 70 |
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| 71 | #ifdef SUPPORT_CHG_IPM
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| 72 | /*
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| 73 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 74 | */
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| 75 | volatile UB task_intmask = 0;
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| 76 | #endif /* SUPPORT_CHG_IPM */
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| 77 |
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| 78 | /*
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| 79 | * éã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 80 | */
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| 81 | volatile UB int_intmask = 0;
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| 82 |
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| 83 | /*
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| 84 | * å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿
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| 85 | */
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| 86 | volatile UB intnest = 0;
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| 87 |
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| 88 | /*
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| 89 | * CPUããã¯ç¶æ
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| 90 | ã表ããã©ã°
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| 91 | */
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| 92 | volatile BOOL iscpulocked = TRUE;
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| 93 |
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| 94 | /*
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| 95 | * ã¿ã¤ãã®ãã©ã¤ãªãªãã£ã¬ãã«è¨å®ç¨ã®ãã¼ã¿
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| 96 | * æ¬æ¥ã¯hw_timer.hã«è¨è¿°ããã¹ãã ããããããã¨
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| 97 | * hw_timer.hãã¤ã³ã¯ã«ã¼ããããã¡ã¤ã«ã§ãã¹ã¦å®ä½åããã¦
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| 98 | *ãããã¡ã¢ãªé åãå æãã¦ãã¾ããããå®ä½ã¯ããã«è¨è¿°ããã
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| 99 | */
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| 100 | const IRC TIMER_IRC = {(UB*)SYSTEM_TIMER_IPR,
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| 101 | SYSTEM_TIMER_IP_BIT,
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| 102 | SYSTEM_TIMER_IPM
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| 103 | };
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| 104 |
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| 105 | /*
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| 106 | * SYSCRã®åæå¤
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| 107 | * $CPUãã£ã¬ã¯ããªã§å®ç¾©ããå
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| 108 | 容
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| 109 | * ãããã7 SSBY=0ï¼sleepå½ä»¤ã§ã¹ãªã¼ãã¢ã¼ãã¸ç§»è¡
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| 110 | * ãããã3 UE=1ï¼CCR.UIãå²è¾¼ã¿ãã¹ã¯ãããã¨ãã¦å©ç¨
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| 111 | * ãããã1 1ï¼ãªã¶ã¼ãããã
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| 112 | * ãããã0 RAME=1ï¼å
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| 113 | èµRAMæå¹
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| 114 | * $SYSãã£ã¬ã¯ããªã§SYSCR_SYSã¨ãã¦å®ç¾©ããå
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| 115 | 容
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| 116 | * ãããã6-4 STSï¼ã¹ã¿ã³ãã¤ã»ã¿ã¤ãã»ã»ã¬ã¯ã
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| 117 | * ãããã2 NMIEGï¼NMIã¨ãã¸
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| 118 | */
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| 119 | #define SYSCR_INI (H8SYSCR_UE | BIT1 | H8SYSCR_RAME | SYSCR_SYS)
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| 120 |
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| 121 | /*
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| 122 | * ããã»ããµä¾åã®åæå
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| 123 | */
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| 124 | void
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| 125 | cpu_initialize(void)
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| 126 | {
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| 127 | /*
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| 128 | * 以ä¸ã®ï¼ã¤ã¯ã¹ã¿ã¼ãã¢ããã«ã¼ãã³ã§åæåãæ¸ãã§ããã
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| 129 | * ããã»å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ intnest
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| 130 | * ããã»éã¿ã¹ã¯ã³ã³ããã¹ãã®å²è¾¼ã¿ãã¹ã¯ int_intmask
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| 131 | * ããã»ã¿ã¹ã¯ã³ã³ããã¹ãã®å²è¾¼ã¿ãã¹ã¯ task_intmask
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| 132 | * ããããï¼chg_ipmããµãã¼ãããå ´åï¼
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| 133 | */
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| 134 |
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| 135 | /*
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| 136 | * SYSCRã®è¨å®
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| 137 | */
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| 138 | sil_wrb_mem((VP)H8SYSCR, (VB)SYSCR_INI);
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| 139 |
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| 140 | /* æªå®æ */
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| 141 | /* sleepå½ä»¤ã§é·ç§»ããçé»åç¶æ
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| 142 | ã®è¨å® */
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| 143 |
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| 144 | /* ä½ã¬ãã«åºåç¨ã·ãªã¢ã«ãã¼ãã®åæå */
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| 145 | SCI_initialize(SCI_LOW_PORTID);
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| 146 | }
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| 147 |
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| 148 | /*
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| 149 | * ããã»ããµä¾åã®çµäºå¦ç
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| 150 | */
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| 151 | void
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| 152 | cpu_terminate(void)
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| 153 | {
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| 154 | }
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| 155 |
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| 156 | #ifdef SUPPORT_CHG_IPM
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| 157 | /*
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| 158 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 159 | *
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| 160 | *ãIPMã«è¨å®ã§ããå¤ã¨ãã¦IPM_LEVEL0ãIPM_LEVEL1ããã¯ãå®ç¾©ããã¦ããã
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| 161 | *
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| 162 | *
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| 163 | *ãIPM_LEVEL0ï¼ã¬ãã«ï¼ããã¹ã¦ã®å²è¾¼ã¿ãåãä»ãã
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| 164 | *ãIPM_LEVEL1ï¼ã¬ãã«ï¼ãNMIããã³ãã©ã¤ãªãªãã£ã¬ãã«ï¼ã®å²è¾¼ã¿ã®ã¿ã
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| 165 | *ããããããããããããåãä»ãã
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| 166 | *
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| 167 | * chg_ipm ã使ã£ã¦ IPM ãã¬ãã«2ï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ï¼ã«
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| 168 | * å¤æ´ãããã¨ã¯ã§ããªãï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ãããå ´å
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| 169 | * ã«ã¯ï¼loc_cpu ã«ããCPUããã¯ç¶æ
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| 170 | ã«ããã°ããï¼
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| 171 | * IPM ã 0 以å¤ã®æã«ãï¼ã¿ã¹ã¯ãã£ã¹ãããã¯ä¿çãããªãï¼IPM ã¯ï¼
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| 172 | * ã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ï¼æ°ããå®è¡ç¶æ
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| 173 | ã«ãªã£ãã¿ã¹ã¯ã¸å¼ãç¶ã
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| 174 | * ããï¼ãã®ããï¼ã¿ã¹ã¯ãå®è¡ä¸ã«ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ãå¤æ´ã
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| 175 | * ããå ´åãããï¼JSPã«ã¼ãã«ã§ã¯ï¼IPM ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ã
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| 176 | * ã³ã«ãã£ã¦ãèµ·ããã®ãï¼ããã«ãã£ã¦æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨
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| 177 | * æãããï¼
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| 178 | *ãIPM ã®å¤ã«ãã£ã¦ã¿ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ï¼dis_dspã
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| 179 | * ä½µç¨ããã°ããï¼
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| 180 | */
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| 181 | SYSCALL ER
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| 182 | chg_ipm(IPM ipm)
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| 183 | {
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| 184 | ER ercd = E_OK;
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| 185 |
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| 186 | LOG_CHG_IPM_ENTER(ipm);
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| 187 | CHECK_TSKCTX_UNL();
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| 188 | CHECK_PAR( (ipm == IPM_LEVEL0) || (ipm == IPM_LEVEL1) || (ipm == IPM_LEVEL2));
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| 189 |
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| 190 | t_lock_cpu();
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| 191 | task_intmask = ipm;
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| 192 | t_unlock_cpu();
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| 193 |
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| 194 | exit:
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| 195 | LOG_CHG_IPM_LEAVE(ercd)
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| 196 | return(ercd);
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| 197 | }
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| 198 |
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| 199 | /*
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| 200 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 201 | §
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| 202 | */
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| 203 | SYSCALL ER
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| 204 | get_ipm(IPM *p_ipm)
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| 205 | {
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| 206 | ER ercd = E_OK;
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| 207 |
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| 208 | LOG_GET_IPM_ENTER(p_ipm);
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| 209 | CHECK_TSKCTX_UNL();
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| 210 |
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| 211 | t_lock_cpu();
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| 212 | *p_ipm = task_intmask;
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| 213 | t_unlock_cpu();
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| 214 |
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| 215 | exit:
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| 216 | LOG_GET_IPM_LEAVE(ercd, *p_ipm);
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| 217 | return(ercd);
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| 218 | }
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| 219 |
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| 220 | #endif /* SUPPORT_CHG_IPM */
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| 221 |
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| 222 | /*
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| 223 | * å¾®å°æéå¾
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| 224 | ã¡
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| 225 | * ãã注æäºé
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| 226 | ï¼
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| 227 | * ãããæ¨æºã§ã¯dlytimã¯UINTåã ã16ããããããªãã®ã§ã
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| 228 | * ãããUWåã«å¤æ´ãã¦ããã
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| 229 | * ãããsil_dly_nse()ã¯å
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| 230 | é¨ã§sil_dly_nse2()ãå¼ã³åºãã
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| 231 | */
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| 232 | void sil_dly_nse(UINT dlytim) {
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| 233 | sil_dly_nse_long((UW)dlytim);
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| 234 | }
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| 235 |
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| 236 | /*****以ä¸ãå
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| 237 | ±éé¨ã¨ã®ã¤ã³ã¿ã¼ãã§ã¼ã¹ã«å«ã¾ããªãé¨å*********/
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| 238 |
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| 239 | /*
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| 240 | * ç»é²ããã¦ããªãå²ãè¾¼ã¿ã®ããã©ã«ãå¦ç
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| 241 | */
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| 242 |
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| 243 | /*
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| 244 | * ã¹ã¿ãã¯ã®å
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| 245 | é ããåã¬ã¸ã¹ã¿ã®ã¾ã§ã®ãªãã»ãã
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| 246 | *
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| 247 | * ãã¹ã¿ãã¯æ§é
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| 248 | *ãã +0:er0
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| 249 | *ãã +4:er1
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| 250 | *ãã +8:er2
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| 251 | *ãã+12:er3
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| 252 | *ãã+16:er4
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| 253 | *ãã+20:er5
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| 254 | *ãã+24:er6
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| 255 | *ãã+28:crr
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| 256 | *ãã+29:pc
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| 257 | *ãã+32ã:å²è¾¼ã¿åã«ä½¿ç¨ããã¦ããã¹ã¿ãã¯é å
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| 258 | */
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| 259 |
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| 260 | /*
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| 261 | * å²è¾¼ã¿çºçç´åã®ã¹ã¿ãã¯ãã¤ã³ã¿ã¾ã§ã®ãªãã»ãã
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| 262 | */
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| 263 | #define OFFSET_SP 32
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| 264 |
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| 265 | /*
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| 266 | * ç»é²ããã¦ããªãå²ãè¾¼ã¿ãçºçããã¨å¼ã³åºããã
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| 267 | */
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| 268 | void
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| 269 | cpu_experr(EXCSTACK *sp)
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| 270 | {
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| 271 | UW sp2, pc, ccr, tmp;
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| 272 |
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| 273 | sp2 = (UW)sp + OFFSET_SP;
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| 274 | tmp = sp->pc;
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| 275 | ccr = (tmp >> 24U) & 0xff; /* ä¸ä½1ãã¤ã */
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| 276 | pc = tmp & 0x00ffffffUL; /* ä¸ä½3ãã¤ã */
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| 277 |
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| 278 | /*
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| 279 | * %xï¼æ´æ°åï¼ã§ã¯2ãã¤ããã表示ã§ããªãã®ã§
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| 280 | * %pï¼ãã¤ã³ã¿åï¼ãç¨ãã¦4ãã¤ã表示ãã¦ããã
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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%08p SP = 0x%08p CCR = 0x%02x",
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| 284 | (VP)pc, (VP)sp2, (INT)ccr);
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| 285 | syslog(LOG_EMERG, "ER0 = 0x%08p ER1 = 0x%08p ER2 = 0x%08p ER3 = 0x%08p",
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| 286 | (VP)(sp->er0), (VP)(sp->er1), (VP)(sp->er2), (VP)(sp->er3));
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| 287 | syslog(LOG_EMERG, "ER4 = 0x%08p ER5 = 0x%08p ER6 = 0x%08p",
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| 288 | (VP)(sp->er4), (VP)(sp->er5), (VP)(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 | * ã¿ã¼ã²ããã·ã¹ãã ã®æååºå
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| 295 | *
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| 296 | * ã·ã¹ãã ã®ä½ã¬ãã«ã®æååºåã«ã¼ãã³ï¼
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| 297 | */
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| 298 | void
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| 299 | cpu_putc(char c)
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| 300 | {
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| 301 | if (c == '\n') {
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| 302 | SCI_putchar_pol('\r');
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| 303 | }
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| 304 | SCI_putchar_pol((UB)c);
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| 305 | }
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