[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) 2000,2001 by Embedded and Real-Time Systems Laboratory
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| 7 | * Toyohashi Univ. of Technology, JAPAN
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| 8 | * Copyright (C) 2002 by Monami software, Limited Partners.
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| 9 | * Copyright (C) 2008- by Monami Software Limited Partnership, JAPAN
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| 10 | *
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| 11 | * ä¸è¨èä½æ¨©è
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| 12 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 13 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 14 | * å¤ã»åé
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| 15 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 16 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 17 | * 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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| 18 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 19 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 20 | * ç¨ã§ããå½¢ã§åé
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| 21 | å¸ããå ´åã«ã¯ï¼åé
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| 22 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 23 | * è
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| 24 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 25 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 26 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 27 | * ç¨ã§ããªãå½¢ã§åé
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| 28 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 29 | * ã¨ï¼
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| 30 | * (a) åé
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| 31 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 32 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 33 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 34 | * (b) åé
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| 35 | å¸ã®å½¢æ
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| 36 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 37 | * å ±åãããã¨ï¼
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| 38 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 39 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 40 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 41 | 責ãããã¨ï¼
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| 42 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 43 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 44 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 45 | * å
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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¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 51 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 52 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 53 | * ã®è²¬ä»»ãè² ããªãï¼
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| 54 | *
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| 55 | * @(#) $Id: cpu_context.h,v 1.1 2004/07/21 02:49:36 monaka Exp $
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| 56 | */
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| 57 |
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| 58 | /*
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| 59 | * ã¿ã¹ã¯ã³ã³ããã¹ãæä½ã«ã¼ãã³
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| 60 | *
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| 61 | * ãã®ãã¡ã¤ã«ã cpu_config.h ã¨åé¢ãã¦ããã®ã¯ï¼ãã®ãã¡ã¤ã«ã¯ TCB
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| 62 | * ãå®ç¾©ãããå¾ã«èªãå¿
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| 63 | è¦ãããã®ã«å¯¾ãã¦ï¼cpu_config.h ã«ã¯ TCB ã
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| 64 | * å®ç¾©ããåã«èªãå¿
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| 65 | è¦ãããå®ç¾©ãå«ãã§ããããã§ããï¼
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| 66 | */
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| 67 |
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| 68 | #ifndef _CPU_CONTEXT_H_
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| 69 | #define _CPU_CONTEXT_H_
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| 70 |
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| 71 | #include "task.h"
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| 72 |
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| 73 | /*
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| 74 | * ã¿ã¹ã¯ã³ã³ããã¹ããããã¯ã®åæå
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| 75 | *
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| 76 | * ã¿ã¹ã¯ãä¼æ¢ç¶æ
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| 77 | ã«ç§»è¡ããæï¼ã¿ã¹ã¯ã®çææï¼ã¿ã¹ã¯ã®çµäºæï¼ã«å¼
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| 78 | * ã°ããï¼åºæ¬çã«ã¯ï¼ã¿ã¹ã¯ã³ã³ããã¹ããããã¯ãã¿ã¹ã¯ãèµ·åã§ãã
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| 79 | * ç¶æ
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| 80 | ã«è¨å®ããå¦çãï¼create_context 㨠activate_context ã§è¡ãã°
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| 81 | * ããï¼å¤ãã®å¦çã¯ã©ã¡ãã®é¢æ°ã§è¡ã£ã¦ãããï¼
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| 82 | */
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| 83 | Inline void
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| 84 | create_context(TCB *tcb)
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| 85 | {
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| 86 | }
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| 87 |
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| 88 | /*
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| 89 | * ã¿ã¹ã¯ã®èµ·åæºå
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| 90 | *
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| 91 | * ã¿ã¹ã¯ãä¼æ¢ç¶æ
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| 92 | ããå®è¡ã§ããç¶æ
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| 93 | ã«ç§»è¡ããæã«å¼ã°ããï¼
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| 94 | */
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| 95 | extern void activate_r(void);
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| 96 |
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| 97 | Inline void
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| 98 | activate_context(TCB *tcb)
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| 99 | {
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| 100 | VW *esp;
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| 101 |
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| 102 | esp = (VW *)((SIZE)(tcb->tinib->stk) + tcb->tinib->stksz);
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| 103 | *--esp = (VW)(tcb->tinib->exinf);
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| 104 | *--esp = (VW) ext_tsk;
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| 105 | *--esp = (VW)(tcb->tinib->task);
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| 106 | tcb->tskctxb.esp = esp;
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| 107 | tcb->tskctxb.eip = activate_r;
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| 108 | }
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| 109 |
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| 110 | /*
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| 111 | * ext_tsk ãã¹ã¿ãã¯ä¸ã«ç¢ºä¿ããããã¼é åã®ãµã¤ãº
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| 112 | */
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| 113 | #define ACTIVATED_STACK_SIZE (sizeof(VW) * 3)
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| 114 |
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| 115 | #if 0
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| 116 | /*
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| 117 | * calltex ã¯ä½¿ç¨ããªã
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| 118 | */
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| 119 | #define OMIT_CALLTEX
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| 120 | #endif
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| 121 |
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| 122 | #endif /* _CPU_CONTEXT_H_ */
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