[26] | 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 | #ifndef _CPU_INSN_H_
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| 56 | #define _CPU_INSN_H_
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| 57 |
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| 58 | /* ä¸è¨ã«ã¦å©ç¨ãã¦ãããMAX_IPM 㯠cpu_config.h ã§å®ç¾© */
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| 59 |
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| 60 | #ifndef _MACRO_ONLY
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| 61 |
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| 62 | /*
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| 63 | * å¶å¾¡ã¬ã¸ã¹ã¿ã®æä½é¢æ°
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| 64 | */
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| 65 |
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| 66 | /* ã³ã³ãã·ã§ã³ã³ã¼ãã¬ã¸ã¹ã¿ï¼CCRï¼ã®ç¾å¨å¤ã®èªåºã */
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| 67 | Inline UB current_ccr(void)
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| 68 | {
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| 69 | UB ccr;
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| 70 |
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| 71 | Asm( "stc.b ccr, %0l" : "=r"(ccr) );
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| 72 |
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| 73 | return(ccr);
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| 74 | }
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| 75 |
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| 76 | /* ã³ã³ãã£ã·ã§ã³ã³ã¼ãã¬ã¸ã¹ã¿ï¼CCRï¼ã®ç¾å¨å¤ã®å¤æ´ */
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| 77 | Inline void set_ccr(UB ccr)
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| 78 | {
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| 79 | Asm( "ldc.b %0l, ccr" ::"r"(ccr) );
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| 80 | }
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| 81 |
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| 82 | /* ã¨ã¯ã¹ãã³ãã¬ã¸ã¹ã¿ï¼EXRï¼ã®ç¾å¨å¤ã®èªåºã */
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| 83 | Inline UB current_exr(void)
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| 84 | {
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| 85 | UB exr;
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| 86 |
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| 87 | Asm( "stc.b exr, %0l" : "=r"(exr) );
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| 88 |
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| 89 | return(exr);
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| 90 | }
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| 91 |
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| 92 | /* ã³ã³ãã·ã§ã³ã³ã¼ãã¬ã¸ã¹ã¿ï¼EXRï¼ã®ç¾å¨å¤ã®å¤æ´ */
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| 93 | Inline void set_exr(UB exr)
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| 94 | {
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| 95 | Asm( "ldc.b %0l, exr" :: "r"(exr) );
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| 96 | }
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| 97 |
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| 98 | /*
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| 99 | * å²è¾¼ã¿ãã¹ã¯æä½ã©ã¤ãã©ãª (å²è¾¼ã¿ã¢ã¼ãï¼ç¨)
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| 100 | */
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| 101 |
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| 102 | /* ç¾å¨ã®å²è¾¼ã¿ãã¹ã¯ã®èªåºã */
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| 103 | Inline IPM current_intmask(void)
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| 104 | {
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| 105 | return( (IPM) (current_exr() & EXR_I_MASK) );
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| 106 | }
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| 107 |
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| 108 | /* å²è¾¼ã¿ãã¹ã¯ã®è¨å® */
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| 109 | Inline void set_intmask(IPM intmask)
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| 110 | {
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| 111 | set_exr( (IPM) ((current_exr() & ~EXR_I_MASK) | intmask ) );
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| 112 | }
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| 113 |
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| 114 | /* ã«ã¼ãã«ç®¡çä¸ã®ãã¹ã¦ã®å²è¾¼ã¿ ï¼ å²è¾¼ã¿ã¬ãã«ãMAX_IPM 以ä¸ã®å²è¾¼ã¿ */
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| 115 |
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| 116 | /* ã«ã¼ãã«ç®¡çä¸ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ (NMIãé¤ã) */
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| 117 | Inline void disint(void)
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| 118 | {
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| 119 | /* set_intmask( (IPM) MAX_IPM ); */
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| 120 | set_exr( (IPM) ((current_exr() & ~EXR_I_MASK) | MAX_IPM ) );
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| 121 | }
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| 122 |
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| 123 | /* ã«ã¼ãã«ç®¡çä¸ã®ãã¹ã¦ã®å²è¾¼ã¿ãè¨±å¯ (NMIãé¤ã) */
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| 124 | /* ãã®å¦çã¯ãäºå®ä¸ãã«ã¼ãã«ç®¡çä¸ã®æç¡ãåããããã¹ã¦ã®å²è¾¼ã¿ã
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| 125 | 許å¯ãããã¨ã«ãªã£ã¦ããã */
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| 126 | Inline void enaint()
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| 127 | {
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| 128 | /* set_intmask( (IPM) 0 ); */
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| 129 | set_exr( (IPM) (current_exr() & ~EXR_I_MASK) );
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| 130 | }
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| 131 |
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| 132 | /*
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| 133 | * å²è¾¼ã¿ããã¯ç¶æ
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| 134 | ã®å¶å¾¡ç¨é¢æ°
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| 135 | */
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| 136 |
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| 137 | /* ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ (NMIãé¤ã) */
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| 138 | Inline void _disint_()
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| 139 | {
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| 140 | /* set_intmask( (IPM) 7 ); */
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| 141 | set_exr( (IPM) (current_exr() | EXR_I_MASK) );
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| 142 | }
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| 143 |
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| 144 | /*
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| 145 | * ãããæä½ç¨é¢æ°
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| 146 | */
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| 147 |
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| 148 | /* ãããã¯ãªã¢ */
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| 149 | Inline void bitclr(UW addr, UB bit)
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| 150 | {
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| 151 | Asm( "bclr %1l, @%0" :: "r"(addr), "r"(bit) );
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| 152 | }
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| 153 |
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| 154 | /* ãããã»ãã */
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| 155 | Inline void bitset(UW addr, UB bit)
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| 156 | {
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| 157 | Asm( "bset %1l, @%0" :: "r"(addr), "r"(bit) );
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| 158 | }
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| 159 |
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| 160 | #endif /* _MACRO_ONLY */
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| 161 |
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| 162 | #endif /* _CPU_INSN_H_ */
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