[172] | 1 | /*
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| 2 | * TOPPERS ATK2
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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| 4 | * Automotive Kernel Version 2
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| 5 | *
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| 6 | * Copyright (C) 2012-2013 by Center for Embedded Computing Systems
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| 7 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 8 | * Copyright (C) 2012-2013 by FUJISOFT INCORPORATED, JAPAN
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| 9 | * Copyright (C) 2012-2013 by FUJITSU VLSI LIMITED, JAPAN
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| 10 | * Copyright (C) 2012-2013 by NEC Communication Systems, Ltd., JAPAN
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| 11 | * Copyright (C) 2012-2013 by Panasonic Advanced Technology Development Co., Ltd., JAPAN
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| 12 | * Copyright (C) 2012-2013 by Renesas Electronics Corporation, JAPAN
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| 13 | * Copyright (C) 2012-2013 by Sunny Giken Inc., JAPAN
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| 14 | * Copyright (C) 2012-2013 by TOSHIBA CORPORATION, JAPAN
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| 15 | * Copyright (C) 2012-2013 by Witz Corporation, JAPAN
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| 16 | * Copyright (C) 2013 by Embedded and Real-Time Systems Laboratory
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| 17 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 18 | *
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| 19 | * ä¸è¨èä½æ¨©è
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| 20 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 21 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 22 | * å¤ã»åé
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| 23 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 24 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 25 | * 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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| 26 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 27 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 28 | * ç¨ã§ããå½¢ã§åé
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| 29 | å¸ããå ´åã«ã¯ï¼åé
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| 30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 31 | * è
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| 32 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 33 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 34 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 35 | * ç¨ã§ããªãå½¢ã§åé
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| 36 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 37 | * ã¨ï¼
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| 38 | * (a) åé
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| 39 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 40 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 41 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 42 | * (b) åé
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| 43 | å¸ã®å½¢æ
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| 44 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 45 | * å ±åãããã¨ï¼
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| 46 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 47 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 48 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 49 | 責ãããã¨ï¼
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| 50 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 51 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 52 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 53 | * å
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| 54 | 責ãããã¨ï¼
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| 55 | *
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| 56 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼AUTOSARï¼AUTomotive Open System ARchitectureï¼ä»
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| 57 | * æ§ã«åºã¥ãã¦ããï¼ä¸è¨ã®è¨±è«¾ã¯ï¼AUTOSARã®ç¥ç財ç£æ¨©ã許諾ãããã®ã§
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| 58 | * ã¯ãªãï¼AUTOSARã¯ï¼AUTOSARä»æ§ã«åºã¥ããã½ããã¦ã§ã¢ãåç¨ç®çã§å©
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| 59 | * ç¨ããè
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| 60 | ã«å¯¾ãã¦ï¼AUTOSARãã¼ããã¼ã«ãªããã¨ãæ±ãã¦ããï¼
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| 61 | *
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| 62 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 63 | ã
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| 64 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 65 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 66 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 67 | * ã®è²¬ä»»ãè² ããªãï¼
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| 68 | *
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| 69 | * $Id: start.S 187 2015-06-25 03:39:04Z t_ishikawa $
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| 70 | */
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| 71 |
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| 72 | /*
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| 73 | * ã«ã¼ãã«å¯¾å¿ã®ã¹ã¿ã¼ãã¢ããã¢ã¸ã¥ã¼ã«ï¼V850ç¨ï¼
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| 74 | */
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| 75 |
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| 76 | #define OMIT_INCLUDE_OS_CFG /* Os_Cfg.hã¤ã³ã¯ã«ã¼ãææ¢ */
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| 77 |
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| 78 | #include <v850asm.inc>
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| 79 |
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| 80 | .section .text_kernel
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| 81 | .align 4
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| 82 | .global __start
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| 83 | .extern _bsssecinib_table
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| 84 | .extern _tnum_bsssec
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| 85 | .extern _datasecinib_table
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| 86 | .extern _tnum_datasec
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| 87 | .extern _syscall_table
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| 88 | FLABEL(__start)
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| 89 | di /* å²ãè¾¼ã¿ç¦æ¢ */
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| 90 |
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| 91 | /*
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| 92 | * å種ãã¤ã³ã¿ã®åæå(SP/TP/EP/GP/CTBP)
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| 93 | */
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| 94 | Lea __ostkpt, r3
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| 95 | ld.w 0[r3],r3
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| 96 | /* =begin modified for SC3 */
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| 97 | /*
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| 98 | * ep, ctbpã¯ã¨ãããã使ç¨ããªã
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| 99 | * tp, gpã¯sdataã¢ã¯ã»ã¹ã§ã³ã³ãã¤ã©ã使ç¨ãã
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| 100 | */
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| 101 | Lea __tp, tp
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| 102 | /* Lea __ep , ep */
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| 103 | Lea __gp , gp
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| 104 | /* Lea __ctbp , r6 */
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| 105 | /* ldsr r6 , 20 */
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| 106 | /*
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| 107 | * syscallã®åä½è¨å®
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| 108 | */
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| 109 | #ifdef __v850e2v3__
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| 110 | mov SYSCALL_SIZE, r6
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| 111 | ldsr r6, sccfg
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| 112 | Lea _syscall_table, r6
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| 113 | ldsr r6, scbp
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| 114 | #elif defined(__v850e3v5__)
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| 115 | mov SYSCALL_SIZE, r6
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| 116 | ldsr r6, 11, 1
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| 117 | Lea _syscall_table, r6
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| 118 | ldsr r6, 12, 1
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| 119 | syncp
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| 120 | #endif /* __v850e2v3__ */
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| 121 |
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| 122 | /* =end modified for SC3 */
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| 123 |
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| 124 | #ifdef TOPPERS_USE_HFLOAT
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| 125 | /*
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| 126 | * FPUãæå¹ã«
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| 127 | */
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| 128 | stsr psw, r12 /* load psw */
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| 129 | mov 0x00010000,r13 /* PSW.CU0(PSW[16]) = 1 */
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| 130 | or r13, r12
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| 131 | ldsr r12, psw /* store psw */
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| 132 | #endif /* TOPPERS_USE_HFLOAT */
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| 133 |
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| 134 | /*
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| 135 | * hardware_init_hook ã®å¼åºãï¼0 ã§ãªãå ´åï¼
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| 136 | *
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| 137 | * ã¿ã¼ã²ãããã¼ãã¦ã§ã¢ã«ä¾åãã¦å¿
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| 138 | è¦ãªåæåå¦çãããå ´å
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| 139 | * ã¯ï¼hardware_init_hook ã¨ããé¢æ°ãç¨æããï¼
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| 140 | */
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| 141 | Lea _hardware_init_hook, r1
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| 142 | cmp r0, r1
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| 143 | be hardware_init_hook_end
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| 144 | jarl _hardware_init_hook, lp
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| 145 | FLABEL(hardware_init_hook_end)
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| 146 |
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| 147 | /*
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| 148 | * BSSã»ã¯ã·ã§ã³åæå
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| 149 | * r0: ã¼ãã¬ã¸ã¹ã¿
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| 150 | */
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| 151 | mov r0, r6 /* r6: ãã¼ãã«ã®ã¤ã³ããã¯ã¹ i */
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| 152 | Lea _tnum_bsssec, r7
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| 153 | ld.w 0[r7], r7 /* r7: ãã¼ãã«ã®è¦ç´ æ° num */
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| 154 | Lea _bsssecinib_table, r8 /* r8: ãã¼ãã«ã®ã¢ãã¬ã¹ */
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| 155 | FLABEL(bss_clear_start)
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| 156 | cmp r7, r6 /* ã«ã¼ãçµäºæ¡ä»¶: i >= num */
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| 157 | bnl bss_clear_end
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| 158 | ld.w 0[r8], ep /* ep: bssã®å
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| 159 | é çªå° */
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| 160 | ld.w 4[r8], r9 /* r9: bssã®çµäºçªå° */
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| 161 | cmp r9, ep /* bssã空ãï¼ */
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| 162 | bnl bss_clear_start_hook /* 空ãªãã°æ¬¡ã®bss㸠*/
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| 163 | nop
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| 164 | FLABEL(bss_clear_body)
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| 165 | /*
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| 166 | * bssã®é åã¯ï¼4byteå¢çã«ã¢ã©ã¤ã³ããã¦ãã
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| 167 | * ãã£ã¦ï¼4byteãã¤ãã¼ã¿ãã³ãã¼ãã¦ãã
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| 168 | */
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| 169 | sst.w r0, 0[ep] /* bssã®é åã0ã§åæå */
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| 170 | add 4, ep /* 次ã®çªå°ã¸ */
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| 171 | cmp r9, ep /* bssã®çµäºçªå°ã¾ã§æ¥ããï¼ */
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| 172 | bl bss_clear_body /* çµäºçªå°ã§ãªããã°ã«ã¼ã */
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| 173 | #ifdef BSSSEC_ALIGN_MASK
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| 174 | /*
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| 175 | * å¢çã«ãªãã¾ã§åæåãç¶ãã
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| 176 | */
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| 177 | mov BSSSEC_ALIGN_MASK, r10
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| 178 | FLABEL(bss_clear_body2)
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| 179 | tst r10, ep /* ep & 0xf == 0 ? */
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| 180 | bz bss_clear_start_hook
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| 181 | sst.w r0, 0[ep] /* 0åæå */
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| 182 | add 4, ep
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| 183 | jr bss_clear_body2
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| 184 | #endif /* BSSSEC_ALIGN_MASK */
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| 185 | nop
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| 186 | FLABEL(bss_clear_start_hook)
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| 187 | add 8, r8 /* ãã¼ãã«ã®ã¢ãã¬ã¹ãã¤ã³ã¯ãªã¡ã³ã 4byte * 2 -> 8 */
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| 188 | add 1, r6 /* ãã¼ãã«ã®ã¤ã³ããã¯ã¹ãã¤ã³ã¯ãªã¡ã³ã: i++ */
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| 189 | br bss_clear_start
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| 190 | nop
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| 191 | FLABEL(bss_clear_end)
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| 192 |
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| 193 | #ifndef OMIT_DATA_INIT
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| 194 | /*
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| 195 | * dataã»ã¯ã·ã§ã³ã®åæåï¼ROMå対å¿ï¼
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| 196 | *
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| 197 | */
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| 198 | mov r0, r6 /* r6: ãã¼ãã«ã®ã¤ã³ããã¯ã¹ i */
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| 199 | Lea _tnum_datasec, r7
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| 200 | ld.w 0[r7], r7 /* r7: ãã¼ãã«ã®è¦ç´ æ° num */
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| 201 | Lea _datasecinib_table, r8 /* r8: ãã¼ãã«ã®ã¢ãã¬ã¹ */
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| 202 | FLABEL(data_init_start)
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| 203 | cmp r7, r6 /* ã«ã¼ãçµäºæ¡ä»¶: i >= num */
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| 204 | bnl data_init_end
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| 205 | ld.w 0[r8], ep /* ep : dataã®å
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| 206 | é çªå° */
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| 207 | ld.w 4[r8], r9 /* r9 : dataã®çµäºçªå° */
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| 208 | ld.w 8[r8], r2 /* r2: idataã®çµäºçªå° */
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| 209 | cmp r9, ep /* dataã空ãï¼ */
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| 210 | bnl data_init_start_hook /* 空ãªãã°æ¬¡ã®data㸠*/
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| 211 | nop
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| 212 | FLABEL(data_init_body)
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| 213 | ld.b 0[r2], r10 /* idataã®å¤ããã¼ã */
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| 214 | sst.b r10, 0[ep] /* idataã®å¤ãdataã®ã¢ãã¬ã¹ã¸ã¹ã㢠*/
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| 215 | add 1, ep /* dataã®æ¬¡ã®çªå°ã¸ */
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| 216 | add 1, r2 /* idataã®æ¬¡ã®çªå°ã¸ */
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| 217 | cmp r9, ep /* dataã®çµäºçªå°ã¾ã§æ¥ããï¼ */
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| 218 | bl data_init_body /* çµäºçªå°ã§ãªããã°ã«ã¼ã */
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| 219 | #ifdef DATASEC_ALIGN_MASK
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| 220 | /*
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| 221 | * å¢çã«ãªãã¾ã§åæåãç¶ãã
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| 222 | */
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| 223 | mov DATASEC_ALIGN_MASK, r10
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| 224 | FLABEL(data_init_body2)
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| 225 | tst r10, ep /* ep & 0xf == 0 ? */
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| 226 | bz data_init_start_hook
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| 227 | sst.b r0, 0[ep] /* 0åæå */
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| 228 | add 1, ep
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| 229 | jr data_init_body2
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| 230 | #endif /* DATASEC_ALIGN_MASK */
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| 231 | nop
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| 232 | FLABEL(data_init_start_hook)
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| 233 | add 12, r8 /* ãã¼ãã«ã®ã¢ãã¬ã¹ãã¤ã³ã¯ãªã¡ã³ã 4byte * 3 -> 12 */
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| 234 | add 1, r6 /* ãã¼ãã«ã®ã¤ã³ããã¯ã¹ãã¤ã³ã¯ãªã¡ã³ã: i++ */
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| 235 | br data_init_start
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| 236 | nop
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| 237 | FLABEL(data_init_end)
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| 238 | #endif /* OMIT_DATA_INIT */
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| 239 |
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| 240 | /*
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| 241 | * software_init_hook ãå¼åºãï¼0 ã§ãªãå ´åï¼
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| 242 | *
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| 243 | * ã½ããã¦ã§ã¢ç°å¢ï¼ç¹ã«ã©ã¤ãã©ãªï¼ã«ä¾åãã¦å¿
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| 244 | è¦ãªåæåå¦
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| 245 | * çãããå ´åã¯ï¼software_init_hook ã¨ããé¢æ°ãç¨æããã°
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| 246 | * ããï¼
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| 247 | */
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| 248 |
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| 249 | Lea _software_init_hook, r1
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| 250 | cmp r0, r1
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| 251 | be software_init_hook_end
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| 252 | jarl _software_init_hook, r31
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| 253 | FLABEL(software_init_hook_end)
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| 254 |
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| 255 | /*
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| 256 | * ã«ã¼ãã«ãèµ·åããï¼
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| 257 | */
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| 258 | jarl _target_hardware_initialize, r31
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| 259 | jarl _main, r31
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| 260 | halt
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| 261 |
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| 262 | .end
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