[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) 2000-2003 by Embedded and Real-Time Systems Laboratory
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| 7 | * Toyohashi Univ. of Technology, JAPAN
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| 8 | *
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| 9 | * ä¸è¨èä½æ¨©è
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| 10 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 11 | * ã«ãã£ã¦å
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| 12 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 13 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 14 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 15 | å¸ï¼ä»¥ä¸ï¼
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| 16 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 17 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 18 | * 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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| 19 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 20 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 21 | * ç¨ã§ããå½¢ã§åé
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| 22 | å¸ããå ´åã«ã¯ï¼åé
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| 23 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 24 | * è
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| 25 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 26 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 27 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 28 | * ç¨ã§ããªãå½¢ã§åé
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| 29 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 30 | * ã¨ï¼
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| 31 | * (a) åé
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| 32 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 33 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 34 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 35 | * (b) åé
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| 36 | å¸ã®å½¢æ
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| 37 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 38 | * å ±åãããã¨ï¼
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| 39 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 40 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 41 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 42 | 責ãããã¨ï¼
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| 43 | *
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| 44 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 45 | ã
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| 46 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 47 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 48 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 49 | *
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| 50 | * @(#) $Id: exception.c,v 1.9 2003/06/04 01:46:16 hiro Exp $
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| 51 | */
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| 52 |
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| 53 | /*
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| 54 | * CPUä¾å¤ç®¡çæ©è½
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| 55 | */
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| 56 |
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| 57 | #include "jsp_kernel.h"
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| 58 | #include "task.h"
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| 59 | #include "exception.h"
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| 60 |
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| 61 | /*
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| 62 | * CPUä¾å¤ãã³ãã©çªå·ã®æ°ï¼kernel_cfg.cï¼
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| 63 | */
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| 64 | extern const UINT tnum_excno;
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| 65 |
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| 66 | /*
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| 67 | * CPUä¾å¤ãã³ãã©åæåãããã¯ã®ã¨ãªã¢ï¼kernel_cfg.cï¼
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| 68 | */
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| 69 | extern const EXCINIB excinib_table[];
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| 70 |
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| 71 | /*
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| 72 | * CPUä¾å¤ãã³ãã©ç®¡çæ©è½ã®åæå
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| 73 | */
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| 74 | #ifdef __excini
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| 75 |
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| 76 | void
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| 77 | exception_initialize()
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| 78 | {
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| 79 | UINT i;
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| 80 | const EXCINIB *excinib;
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| 81 |
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| 82 | for (excinib = excinib_table, i = 0; i < tnum_excno; excinib++, i++) {
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| 83 | define_exc(excinib->excno, excinib->exchdr);
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| 84 | }
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| 85 | }
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| 86 |
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| 87 | #endif /* __excini */
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| 88 |
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| 89 | /*
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| 90 | * CPUä¾å¤ã®çºçããã³ã³ããã¹ãã®åç
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| 91 | §
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| 92 | */
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| 93 | #ifdef __vxsns_ctx
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| 94 |
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| 95 | SYSCALL BOOL
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| 96 | vxsns_ctx(VP p_excinf)
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| 97 | {
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| 98 | BOOL state;
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| 99 |
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| 100 | LOG_VXSNS_CTX_ENTER(p_excinf);
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| 101 | state = exc_sense_context(p_excinf) ? TRUE : FALSE;
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| 102 | LOG_VXSNS_CTX_LEAVE(state);
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| 103 | return(state);
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| 104 | }
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| 105 |
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| 106 | #endif /* __vxsns_ctx */
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| 107 |
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| 108 | /*
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| 109 | * CPUä¾å¤ã®çºçããæã®CPUããã¯ç¶æ
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| 110 | ã®åç
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| 111 | §
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| 112 | */
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| 113 | #ifdef __vxsns_loc
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| 114 |
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| 115 | SYSCALL BOOL
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| 116 | vxsns_loc(VP p_excinf)
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| 117 | {
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| 118 | BOOL state;
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| 119 |
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| 120 | LOG_VXSNS_LOC_ENTER(p_excinf);
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| 121 | state = exc_sense_lock(p_excinf) ? TRUE : FALSE;
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| 122 | LOG_VXSNS_LOC_LEAVE(state);
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| 123 | return(state);
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| 124 | }
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| 125 |
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| 126 | #endif /* __vxsns_loc */
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| 127 |
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| 128 | /*
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| 129 | * CPUä¾å¤ã®çºçããæã®ãã£ã¹ãããç¦æ¢ç¶æ
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| 130 | ã®åç
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| 131 | §
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| 132 | *
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| 133 | * sns_dsp ã¨åä¸ã®å¦çå
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| 134 | 容ã¨ãªãï¼
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| 135 | */
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| 136 | #ifdef __vxsns_dsp
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| 137 |
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| 138 | SYSCALL BOOL
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| 139 | vxsns_dsp(VP p_excinf)
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| 140 | {
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| 141 | BOOL state;
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| 142 |
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| 143 | LOG_VXSNS_DSP_ENTER(p_excinf);
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| 144 | state = !(enadsp) ? TRUE : FALSE;
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| 145 | LOG_VXSNS_DSP_LEAVE(state);
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| 146 | return(state);
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| 147 | }
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| 148 |
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| 149 | #endif /* __vxsns_dsp */
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| 150 |
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| 151 | /*
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| 152 | * CPUä¾å¤ã®çºçããæã®ãã£ã¹ãããä¿çç¶æ
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| 153 | ã®åç
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| 154 | §
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| 155 | */
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| 156 | #ifdef __vxsns_dpn
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| 157 |
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| 158 | SYSCALL BOOL
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| 159 | vxsns_dpn(VP p_excinf)
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| 160 | {
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| 161 | BOOL state;
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| 162 |
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| 163 | LOG_VXSNS_DPN_ENTER(p_excinf);
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| 164 | state = (exc_sense_context(p_excinf) || exc_sense_lock(p_excinf)
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| 165 | || !(enadsp)) ? TRUE : FALSE;
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| 166 | LOG_VXSNS_DPN_LEAVE(state);
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| 167 | return(state);
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| 168 | }
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| 169 |
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| 170 | #endif /* __vxsns_dpn */
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| 171 |
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| 172 | /*
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| 173 | * CPUä¾å¤ã®çºçããæã®ã¿ã¹ã¯ä¾å¤å¦çç¦æ¢ç¶æ
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| 174 | ã®åç
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| 175 | §
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| 176 | *
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| 177 | * sns_tex ã¨åä¸ã®å¦çå
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| 178 | 容ã¨ãªãï¼
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| 179 | */
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| 180 | #ifdef __vxsns_tex
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| 181 |
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| 182 | SYSCALL BOOL
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| 183 | vxsns_tex(VP p_excinf)
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| 184 | {
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| 185 | BOOL state;
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| 186 |
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| 187 | LOG_VXSNS_TEX_ENTER(p_excinf);
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| 188 | state = (runtsk != NULL && runtsk->enatex) ? FALSE : TRUE;
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| 189 | LOG_VXSNS_TEX_LEAVE(state);
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| 190 | return(state);
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| 191 | }
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| 192 |
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| 193 | #endif /* __vxsns_tex */
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