[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) 2001-2004 by Dep. of Computer Science and Engineering
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| 9 | * Tomakomai National College of Technology, JAPAN
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| 10 | * Copyright (C) 2001-2004 by Industrial Technology Institute,
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| 11 | * Miyagi Prefectural Government, JAPAN
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| 12 | *
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| 13 | * ä¸è¨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 |
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| 55 | /*
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| 56 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«(H8Sç¨)
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| 57 | */
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| 58 |
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| 59 | #include "jsp_kernel.h"
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| 60 | #include "check.h"
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| 61 | #include "task.h"
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| 62 |
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| 63 | /*
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| 64 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 65 | */
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| 66 | #ifdef SUPPORT_CHG_IPM
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| 67 | IPM task_intmask; /* IPM -> UBï¼ç¬¦å·ç¡ã8ããã */
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| 68 | #endif /* SUPPORT_CHG_IPM */
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| 69 |
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| 70 | /*
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| 71 | * éã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 72 | */
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| 73 | IPM int_intmask;
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| 74 |
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| 75 | /*
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| 76 | * å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿
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| 77 | */
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| 78 | UW intnest;
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| 79 |
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| 80 | /*
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| 81 | * ããã»ããµä¾åã®åæå
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| 82 | */
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| 83 | void cpu_initialize() {
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| 84 |
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| 85 | #ifdef SUPPORT_CHG_IPM
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| 86 | /* ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯ã®åæå */
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| 87 | task_intmask = 0x00;
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| 88 | #endif /* SUPPORT_CHG_IPM */
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| 89 |
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| 90 | /* å²è¾¼ã¿ï¼CPUä¾å¤ãã¹ãã«ã¦ã³ã¿ã®åæå */
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| 91 | intnest = 1;
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| 92 |
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| 93 | /* å²è¾¼ã¿ã¬ãã«ã®åæå */
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| 94 | icu_set_ilv( (VP) IPRA, IPR_UPR, 0 );
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| 95 | icu_set_ilv( (VP) IPRA, IPR_LOW, 0 );
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| 96 | icu_set_ilv( (VP) IPRB, IPR_UPR, 0 );
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| 97 | icu_set_ilv( (VP) IPRB, IPR_LOW, 0 );
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| 98 | icu_set_ilv( (VP) IPRC, IPR_UPR, 0 );
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| 99 | icu_set_ilv( (VP) IPRC, IPR_LOW, 0 );
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| 100 | icu_set_ilv( (VP) IPRD, IPR_UPR, 0 );
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| 101 | icu_set_ilv( (VP) IPRD, IPR_LOW, 0 );
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| 102 | icu_set_ilv( (VP) IPRE, IPR_UPR, 0 );
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| 103 | icu_set_ilv( (VP) IPRE, IPR_LOW, 0 );
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| 104 | icu_set_ilv( (VP) IPRF, IPR_UPR, 0 );
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| 105 | icu_set_ilv( (VP) IPRF, IPR_LOW, 0 );
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| 106 | icu_set_ilv( (VP) IPRG, IPR_UPR, 0 );
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| 107 | icu_set_ilv( (VP) IPRG, IPR_LOW, 0 );
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| 108 | icu_set_ilv( (VP) IPRH, IPR_UPR, 0 );
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| 109 | icu_set_ilv( (VP) IPRH, IPR_LOW, 0 );
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| 110 | icu_set_ilv( (VP) IPRI, IPR_UPR, 0 );
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| 111 | icu_set_ilv( (VP) IPRI, IPR_LOW, 0 );
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| 112 | icu_set_ilv( (VP) IPRJ, IPR_UPR, 0 );
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| 113 | icu_set_ilv( (VP) IPRJ, IPR_LOW, 0 );
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| 114 | icu_set_ilv( (VP) IPRK, IPR_UPR, 0 );
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| 115 | icu_set_ilv( (VP) IPRK, IPR_LOW, 0 );
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| 116 | }
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| 117 |
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| 118 | /*
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| 119 | * ããã»ããµä¾åã®çµäºå¦ç
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| 120 | */
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| 121 | void cpu_terminate() {
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| 122 | }
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| 123 |
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| 124 | /*
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| 125 | * å¾®å°æéå¾
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| 126 | ã¡
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| 127 | */
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| 128 | void sil_dly_nse(UINT dlytim) {
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| 129 | /* er0 = dlytim */
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| 130 | Asm(" sub.l %0, er0" :: "g"(SIL_DLY_TIM1) );
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| 131 | Asm(" ble sil_dly_nse_2");
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| 132 | /* dlytim < SIL_DLY_TIM1 ãªãã«ã¼ãçµäº */
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| 133 | Asm(" sil_dly_nse_1:");
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| 134 | Asm(" sub.l %0, er0" :: "g"(SIL_DLY_TIM2) );
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| 135 | Asm(" bgt sil_dly_nse_1");
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| 136 | /* dlytim > SIL_DLY_TIM2 ãªãã«ã¼ãç¶è¡ */
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| 137 | Asm(" sil_dly_nse_2:");
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| 138 | }
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| 139 |
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| 140 | #ifdef SUPPORT_CHG_IPM
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| 141 |
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| 142 | /*
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| 143 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 144 | *
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| 145 | * ã»chg_ipm ã使ã£ã¦ãå²è¾¼ã¿ãã¹ã¯ã MAX_IPM ï¼NMI ã¹ã¿ããªã¢ã¼ããã¬ã¼ã¯ 以å¤
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| 146 | * ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ï¼ä»¥ä¸ã«å¤æ´ãããã¨ã¯ã§ãã¾ãããNMI ã¹ã¿ããªã¢ã¼ã
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| 147 | * ãã¬ã¼ã¯ä»¥å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ãããå ´åã«ã¯ãloc_cpuã«ããCPUããã¯
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| 148 | * ç¶æ
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| 149 | ã«ãã¦ãã ããã
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| 150 | * ã»å²è¾¼ã¿ãã¹ã¯ã 0 以å¤ã®æã§ãã£ã¦ããã¿ã¹ã¯ãã£ã¹ãããã¯ä¿çããã¾ããã
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| 151 | * ãã®ã¨ããå²è¾¼ã¿ãã¹ã¯ã®ç¶æ
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| 152 | ã¯ãã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦æ°ããå®è¡ç¶æ
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| 153 | ã«
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| 154 | * ãªã£ãã¿ã¹ã¯ã¸ããã®é½åº¦ãå¼ãç¶ããã¾ãã
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| 155 | * ãã®ãããã¿ã¹ã¯ãå®è¡ä¸ã«ãå²è¾¼ã¿ãçºçãããã£ã¹ãããããå¾ã®å¥ã®ã¿ã¹ã¯
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| 156 | * ã«ãã£ã¦å²è¾¼ã¿ãã¹ã¯ãå¤æ´ãããå ´åãããã¾ãã
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| 157 | * TOPPERS/JSP ã«ã¼ãã«ã§ã¯ãå²è¾¼ã¿ãã¹ã¯ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³ã«ãã£
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| 158 | * ã¦ãèµ·ããã®ã§ï¼ããã«ãã£ã¦æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨æããã¾ãã
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| 159 | * ã»å²è¾¼ã¿ãã¹ã¯ã®å¤ã«ãã£ã¦ã¿ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ãdis_dsp ã
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| 160 | * ä½µç¨ãã¦ãã ããã
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| 161 | */
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| 162 | SYSCALL ER
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| 163 | chg_ipm(IPM ipm)
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| 164 | {
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| 165 | ER ercd;
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| 166 |
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| 167 | LOG_CHG_IPM_ENTER(ipm);
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| 168 | CHECK_TSKCTX_UNL();
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| 169 | CHECK_PAR( /*(0 <= ipm) &&*/ (ipm <= MAX_IPM) );
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| 170 | /* IPMå ã¯ãunsigned ã§å®ç¾©ãã¦ããã®ã§ãã³ã¡ã³ãã¢ã¦ããã¦
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| 171 | ããã¨ããã¯ã常ã«æç«ãã¦ãããããWarnning ãçºçããã
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| 172 | ããããå¯èªæ§ã®åé¡ãããæ示çã«è¨è¿°ãã¦ããã */
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| 173 |
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| 174 | t_lock_cpu();
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| 175 | task_intmask = ipm;
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| 176 | ercd = E_OK;
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| 177 | t_unlock_cpu();
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| 178 |
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| 179 | exit:
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| 180 | LOG_CHG_IPM_LEAVE(ercd)
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| 181 | return(ercd);
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| 182 | }
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| 183 |
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| 184 | /*
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| 185 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 186 | §
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| 187 | */
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| 188 | SYSCALL ER
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| 189 | get_ipm(IPM *p_ipm)
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| 190 | {
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| 191 | ER ercd;
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| 192 |
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| 193 | LOG_GET_IPM_ENTER(p_ipm);
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| 194 | CHECK_TSKCTX_UNL();
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| 195 |
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| 196 | t_lock_cpu();
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| 197 | *p_ipm = task_intmask;
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| 198 | ercd = E_OK;
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| 199 | t_unlock_cpu();
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| 200 |
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| 201 | exit:
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| 202 | LOG_GET_IPM_LEAVE(ercd, *p_ipm);
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| 203 | return(ercd);
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| 204 | }
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| 205 |
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| 206 | #endif /* SUPPORT_CHG_IPM */
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| 207 |
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| 208 | /*============================================================================*/
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| 209 | /* å
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| 210 | ±éããã¥ã¡ã³ãã«ã¯ãªããç¬èªã®é¨å */
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| 211 |
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| 212 | /*
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| 213 | * ç»é²ããã¦ããªãå²ãè¾¼ã¿ãçºçããã¨å¼ã³åºããã
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| 214 | */
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| 215 | void cpu_experr(EXCSTACK *sp)
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| 216 | {
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| 217 | syslog( LOG_EMERG, "Unexpected interrupt." );
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| 218 | syslog( LOG_EMERG, "SP = %08x PC = %08x CCR = %08x",
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| 219 | sp - 34, sp->pc, sp->ccr );
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| 220 | syslog( LOG_EMERG, "ER0 = %08x ER1 = %08x ER2 = %08x ER3 = %08x",
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| 221 | sp->er0, sp->er1, sp->er2, sp->er3 );
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| 222 | syslog( LOG_EMERG, "ER4 = %08x ER5 = %08x ER6 = %08x ",
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| 223 | sp->er4, sp->er5, sp->er6 );
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| 224 |
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| 225 | while(1);
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| 226 | }
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| 227 |
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| 228 | /*
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| 229 | * ã¡ã¢ãªãããã¯æä½ã©ã¤ãã©ãª
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| 230 | * (ItIsããã®æµç¨)
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| 231 | *
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| 232 | * é¢æ°ã®ä»æ§ã¯ï¼ANSI C ã©ã¤ãã©ãªã®ä»æ§ã¨åãï¼æ¨æºã©ã¤ãã©ãªã®ãã®ã
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| 233 | * 使ã£ãæ¹ãå¹çãè¯ãå¯è½æ§ãããï¼
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| 234 | *
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| 235 | */
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| 236 | VP _dummy_memcpy(VP dest, VP src, UINT len)
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| 237 | {
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| 238 | VB *d = (VB *)dest;
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| 239 | VB *s = (VB *)src;
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| 240 |
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| 241 | while (len-- > 0) {
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| 242 | *d++ = *s++;
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| 243 | }
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| 244 |
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| 245 | return(dest);
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| 246 | }
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