[313] | 1 | /*
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| 2 | * TOPPERS/ASP Kernel
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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| 4 | * Advanced 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) 2003-2004 by Naoki Saito
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| 9 | * Nagoya Municipal Industrial Research Institute, JAPAN
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| 10 | * Copyright (C) 2003-2004 by Platform Development Center
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| 11 | * RICOH COMPANY,LTD. JAPAN
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| 12 | * Copyright (C) 2008-2010 by Witz Corporation, JAPAN
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| 13 | * Copyright (C) 2013 by Mitsuhiro Matsuura
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| 14 | *
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| 15 | * ä¸è¨èä½æ¨©è
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| 16 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 17 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 18 | * å¤ã»åé
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| 19 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 20 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 21 | * 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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| 22 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 23 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 24 | * ç¨ã§ããå½¢ã§åé
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| 25 | å¸ããå ´åã«ã¯ï¼åé
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| 26 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 27 | * è
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| 28 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 29 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 30 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 31 | * ç¨ã§ããªãå½¢ã§åé
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| 32 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 33 | * ã¨ï¼
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| 34 | * (a) åé
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| 35 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 36 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 37 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 38 | * (b) åé
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| 39 | å¸ã®å½¢æ
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| 40 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 41 | * å ±åãããã¨ï¼
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| 42 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 43 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 44 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 45 | 責ãããã¨ï¼
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| 46 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 47 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 48 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 49 | * å
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| 50 | 責ãããã¨ï¼
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| 51 | *
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| 52 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 53 | ã
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| 54 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 55 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 56 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 57 | * ã®è²¬ä»»ãè² ããªãï¼
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| 58 | *
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| 59 | * @(#) $Id: target_timer.c 313 2017-07-23 04:50:32Z coas-nagasima $
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| 60 | */
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| 61 |
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| 62 | /*
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| 63 | * ã¿ã¤ããã©ã¤ãï¼GR-SAKURAç¨ï¼
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| 64 | */
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| 65 |
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| 66 | #include "kernel_impl.h"
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| 67 | #include "time_event.h"
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| 68 | #include <sil.h>
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| 69 | #include "target_timer.h"
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| 70 |
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| 71 | /*
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| 72 | * ã¿ã¤ãã®åæåå¦ç
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| 73 | */
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| 74 | void
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| 75 | target_timer_initialize(intptr_t exinf)
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| 76 | {
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| 77 | /*
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| 78 | * ã¢ã¸ã¥ã¼ã«ã¹ãããæ©è½ã®è¨å®
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| 79 | */
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| 80 | sil_wrh_mem(SYSTEM_PRCR_ADDR, 0xA502); /* æ¸è¾¼ã¿è¨±å¯ */
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| 81 | sil_wrw_mem(SYSTEM_MSTPCRA_ADDR,
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| 82 | sil_rew_mem(SYSTEM_MSTPCRA_ADDR) & ~SYSTEM_MSTPCRA_MSTPA15_BIT); /* CMT0 */
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| 83 | sil_wrh_mem(SYSTEM_PRCR_ADDR, 0xA500); /* æ¸è¾¼ã¿ç¦æ¢ */
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| 84 |
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| 85 | /*
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| 86 | * ã¿ã¤ãåæ¢
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| 87 | */
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| 88 | sil_wrh_mem(CMT_CMSTR0_ADDR,
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| 89 | sil_reh_mem(CMT_CMSTR0_ADDR) & ~CMT_CMSTR0_STR0_BIT);
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| 90 |
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| 91 | /*
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| 92 | * ã«ã¦ã³ãã¢ããã«ç¨ããããã¯ããã¯è¨å®
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| 93 | * PCLK/32ãé¸æ
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| 94 | */
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| 95 | sil_wrh_mem(CMT0_CMCR_ADDR, CMT_PCLK_DIV_8);
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| 96 |
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| 97 | /*
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| 98 | * ã³ã³ãã¢ãããã¿ã¤ãã«ã¦ã³ã¿è¨å®
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| 99 | */
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| 100 | sil_wrh_mem(CMT0_CMCNT_ADDR, 0U);
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| 101 |
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| 102 | /*
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| 103 | * ã³ã³ãã¢ãããã¿ã¤ãå¨æè¨å®
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| 104 | */
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| 105 | sil_wrh_mem(CMT0_CMCOR_ADDR, CMCOR_PERIOD);
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| 106 |
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| 107 | /*
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| 108 | * ã³ã³ãã¢ãããã¿ã¤ãå²ãè¾¼ã¿è¦æ±å
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| 109 | è¨å®ã¬ã¸ã¹ã¿ï¼ISELR28ï¼
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| 110 | */
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| 111 | sil_wrb_mem(ICU_ISELR028_ADDR, ICU_ISEL_CPU);
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| 112 |
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| 113 | /*
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| 114 | * ã¿ã¤ãåä½éå§åã®å²è¾¼ã¿è¦æ±ãã¯ãªã¢
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| 115 | */
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| 116 | x_clear_int(INTNO_TIMER);
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| 117 |
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| 118 | /*
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| 119 | * ã³ã³ãã¢ãããã¿ã¤ãå²ãè¾¼ã¿ã許å¯
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| 120 | */
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| 121 | sil_wrh_mem(CMT0_CMCR_ADDR,
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| 122 | sil_reh_mem(CMT0_CMCR_ADDR) | CMT0_CMCR_CMIE_BIT);
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| 123 |
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| 124 | /*
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| 125 | * ã¿ã¤ãåä½éå§
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| 126 | */
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| 127 | sil_wrh_mem(CMT_CMSTR0_ADDR,
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| 128 | sil_reh_mem(CMT_CMSTR0_ADDR) | CMT_CMSTR0_STR0_BIT);
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| 129 | }
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| 130 |
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| 131 | /*
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| 132 | * ã¿ã¤ãã®åæ¢å¦ç
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| 133 | */
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| 134 | void
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| 135 | target_timer_terminate(intptr_t exinf)
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| 136 | {
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| 137 | /*
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| 138 | * ã¿ã¤ãåæ¢
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| 139 | */
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| 140 | sil_wrh_mem(CMT_CMSTR0_ADDR,
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| 141 | sil_reh_mem(CMT_CMSTR0_ADDR) & ~CMT_CMSTR0_STR0_BIT);
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| 142 | }
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| 143 |
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| 144 | /*
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| 145 | * ã¿ã¤ãå²è¾¼ã¿ãã³ãã©
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| 146 | */
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| 147 | void target_timer_handler(void)
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| 148 | {
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| 149 | i_begin_int(INTNO_TIMER);
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| 150 |
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| 151 | signal_time(); /* ã¿ã¤ã ãã£ãã¯ã®ä¾çµ¦ */
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| 152 |
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| 153 | i_end_int(INTNO_TIMER);
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| 154 | }
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