| 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) 2006-2010 by Witz Corporation, JAPAN
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| 7 | ;
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| 8 | ; The above copyright holders grant permission gratis to use,
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| 9 | ; duplicate, modify, or redistribute (hereafter called use) this
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| 10 | ; software (including the one made by modifying this software),
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| 11 | ; provided that the following four conditions (1) through (4) are
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| 12 | ; satisfied.
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| 13 | ;
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| 14 | ; (1) When this software is used in the form of source code, the above
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| 15 | ; copyright notice, this use conditions, and the disclaimer shown
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| 16 | ; below must be retained in the source code without modification.
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| 17 | ;
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| 18 | ; (2) When this software is redistributed in the forms usable for the
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| 19 | ; development of other software, such as in library form, the above
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| 20 | ; copyright notice, this use conditions, and the disclaimer shown
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| 21 | ; below must be shown without modification in the document provided
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| 22 | ; with the redistributed software, such as the user manual.
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| 23 | ;
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| 24 | ; (3) When this software is redistributed in the forms unusable for the
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| 25 | ; development of other software, such as the case when the software
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| 26 | ; is embedded in a piece of equipment, either of the following two
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| 27 | ; conditions must be satisfied:
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| 28 | ;
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| 29 | ; (a) The above copyright notice, this use conditions, and the
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| 30 | ; disclaimer shown below must be shown without modification in
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| 31 | ; the document provided with the redistributed software, such as
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| 32 | ; the user manual.
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| 33 | ;
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| 34 | ; (b) How the software is to be redistributed must be reported to the
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| 35 | ; TOPPERS Project according to the procedure described
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| 36 | ; separately.
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| 37 | ;
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| 38 | ; (4) The above copyright holders and the TOPPERS Project are exempt
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| 39 | ; from responsibility for any type of damage directly or indirectly
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| 40 | ; caused from the use of this software and are indemnified by any
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| 41 | ; users or end users of this software from any and all causes of
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| 42 | ; action whatsoever.
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| 43 | ;
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| 44 | ; THIS SOFTWARE IS PROVIDED "AS IS." THE ABOVE COPYRIGHT HOLDERS AND
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| 45 | ; THE TOPPERS PROJECT DISCLAIM ANY EXPRESS OR IMPLIED WARRANTIES,
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| 46 | ; INCLUDING, BUT NOT LIMITED TO, ITS APPLICABILITY TO A PARTICULAR
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| 47 | ; PURPOSE. IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS AND THE
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| 48 | ; TOPPERS PROJECT BE LIABLE FOR ANY TYPE OF DAMAGE DIRECTLY OR
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| 49 | ; INDIRECTLY CAUSED FROM THE USE OF THIS SOFTWARE.
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| 50 | ;
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| 51 | ; ä¸è¨èä½æ¨©è
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| 52 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 53 | ; ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»
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| 54 | ; åé
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| 55 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 56 | ; (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½æ¨©
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| 57 | ; 表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼ã¹
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| 58 | ; ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 59 | ; (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ç¨
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| 60 | ; ã§ããå½¢ã§åé
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| 61 | å¸ããå ´åã«ã¯ï¼åé
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| 62 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 63 | ã
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| 64 | ; ãã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿
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| 65 | ; 証è¦å®ãæ²è¼ãããã¨ï¼
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| 66 | ; (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ç¨
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| 67 | ; ã§ããªãå½¢ã§åé
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| 68 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºãããã¨ï¼
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| 69 | ; (a) åé
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| 70 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 71 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½
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| 72 | ; 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 73 | ; (b) åé
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| 74 | å¸ã®å½¢æ
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| 75 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«å ±
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| 76 | ; åãããã¨ï¼
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| 77 | ; (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害
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| 78 | ; ãããï¼ä¸è¨èä½æ¨©è
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| 79 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 80 | 責ãããã¨ï¼ã¾ãï¼
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| 81 | ; æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãçç±ã«åºã¥
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| 82 | ; ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 83 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 84 | 責ãããã¨ï¼
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| 85 | ;
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| 86 | ; æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 87 | ãã
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| 88 | ; ã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®çã«å¯¾ã
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| 89 | ; ãé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨
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| 90 | ; ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè²
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| 91 | ; ããªãï¼
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| 92 | ;
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| 93 | ; @(#) $Id: cpu_support.app,v 1.1 2006/04/10 08:19:25 honda Exp $
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| 94 | ;
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| 95 |
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| 96 | $MAXIMUM
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| 97 | module cpu_support_app
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| 98 |
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| 99 | ;
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| 100 | ; ããã»ããµä¾åã¢ã¸ã¥ã¼ã« ã¢ã»ã³ããªè¨èªé¨ï¼TLCS-900L1ç¨ï¼
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| 101 | ;
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| 102 |
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| 103 | #define SUPPORT_CHG_IPM
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| 104 | #include "jsp_rename.h"
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| 105 | #include "cpu_rename.h"
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| 106 | #include "sys_rename.h"
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| 107 | #include "offset.inc"
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| 108 |
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| 109 | ; å¤é¨åç
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| 110 | §ã·ã³ãã«å®ç¾©
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| 111 | extern large __StackTop
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| 112 | extern large _reqflg
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| 113 | extern large _enadsp
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| 114 | extern large _intcnt
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| 115 | extern large _runtsk
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| 116 | extern large _schedtsk
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| 117 | extern large _call_texrtn
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| 118 | extern large _task_intmask
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| 119 |
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| 120 |
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| 121 | f_code section code large align=1,1
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| 122 |
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| 123 | ;
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| 124 | ; ã¿ã¹ã¯ãã£ã¹ãããã£
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| 125 | ;
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| 126 | ; dispatch ã¯ï¼ã¿ã¹ã¯ã³ã³ããã¹ãç¶æ
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| 127 | ã»å²è¾¼ã¿ç¦æ¢ç¶æ
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| 128 | ã§å¼ã³åºããªã
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| 129 | ; ãã°ãªããªãï¼exit_and_dispatch ãï¼ã¿ã¹ã¯ã³ã³ããã¹ãç¶æ
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| 130 | ã»å²è¾¼
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| 131 | ; ã¿ç¦æ¢ç¶æ
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| 132 | ã§å¼ã³åºãã®ãååã§ãããï¼ã«ã¼ãã«èµ·åæã«å¯¾å¿ããããï¼
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| 133 | ; å²è¾¼ã¿ã³ã³ããã¹ãç¶æ
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| 134 | ã§å¼ã³åºããå ´åã«ã対å¿ãã¦ããï¼
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| 135 | ; å¼ã³åºãæ¡ä»¶: SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 136 | ),
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| 137 | ; intcnt = 0(ã¿ã¹ã¯ã³ã³ããã¹ã), ã¿ã¹ã¯ã¹ã¿ãã¯
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| 138 | ;
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| 139 | public _dispatch
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| 140 |
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| 141 | _dispatch:
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| 142 | push xiz ; é¢æ°å¼åºã§ä¿è·ãå¿
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| 143 | è¦ãªã¬ã¸ã¹ã¿ã®ä¿å
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| 144 | ld xwa, (_runtsk) ; åä½ä¸ã¿ã¹ã¯ã®TCBãåå¾
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| 145 | ld (xwa+TCB_sp), xsp ;
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| 146 | lda xhl, dispatch_r ;
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| 147 | ld (xwa+TCB_pc), xhl ;
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| 148 | jr dispatcher ;
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| 149 |
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| 150 | ;
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| 151 | ; å¼ã³åºãæ¡ä»¶: SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 152 | ),
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| 153 | ; intcnt = 0(ã¿ã¹ã¯ã³ã³ããã¹ã), ã¿ã¹ã¯ã¹ã¿ãã¯
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| 154 | ;
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| 155 | ; xwa ã«ã¯runtsk ã®ã¢ãã¬ã¹ãæ ¼ç´ããã¦ãã
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| 156 | ;
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| 157 | dispatch_r:
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| 158 | pop xiz ;
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| 159 | ld bc, (xwa+TCB_enatex) ;
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| 160 | bit TCB_enatex_bit, bc ;
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| 161 | jr z, dispatch_r_1 ; enatex ã FALSE ãªããªã¿ã¼ã³
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| 162 | cpw (xwa+TCB_texptn), 0 ; ã¿ã¹ã¯ä¾å¤è¦å ãããå ´å
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| 163 | jp nz, _call_texrtn ;
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| 164 | ; call_texrtnããç´æ¥dispatch å¼ã³åºãå
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| 165 | ã¸æ»ã.
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| 166 | dispatch_r_1: ; ã¿ã¹ã¯ä¾å¤ãå®è¡ããªãå ´å
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| 167 | ret ; dispatch å¼ã³åºãå
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| 168 | ã¸æ»ã.
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| 169 |
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| 170 | ;
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| 171 | ; ã¿ã¹ã¯èµ·åæå¦ç
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| 172 | ;
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| 173 | ; ããã§ã¯, CPUããã¯è§£é¤ç¶æ
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| 174 | ã«ã, ã¿ã¹ã¯ãèµ·åãã.
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| 175 | ;
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| 176 | ; å¼ã³åºãæ¡ä»¶: SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 177 | ),
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| 178 | ; intcnt = 0(ã¿ã¹ã¯ã³ã³ããã¹ã), ã¿ã¹ã¯ã¹ã¿ãã¯
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| 179 | ;
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| 180 | public _activate_r
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| 181 |
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| 182 | _activate_r:
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| 183 | pop xhl ; ã¿ã¹ã¯ã®èµ·åçªå°ãwhl ã«è¨å®
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| 184 | #ifdef SUPPORT_CHG_IPM /* t_unlock_cpu ç¸å½ã®å¦ç */
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| 185 | push sr ; å²è¾¼ã¿ãã¹ã¯ã« task_intmask ãè¨å®
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| 186 | ld wa, (_task_intmask) ;
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| 187 | andw (xsp), ~0x7000 ;
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| 188 | or (xsp), wa ;
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| 189 | pop sr ;
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| 190 | #else /* SUPPORT_CHG_IPM */
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| 191 | ei 0 ; å²è¾¼ã¿è¨±å¯
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| 192 | #endif /* SUPPORT_CHG_IPM */
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| 193 | jp xhl
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| 194 |
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| 195 | ;
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| 196 | ; dispatcherå¼ã³åºãæ¡ä»¶:
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| 197 | ; ã»ãã¹ã¦ã®ã¿ã¹ã¯ã®ã³ã³ããã¹ãã¯ä¿åããã¦ãã.
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| 198 | ; ã»SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 199 | )
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| 200 | ; ã»ã³ã³ããã¹ãã¯ã¿ã¹ã¯ã³ã³ããã¹ã(intcnt=0)
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| 201 | ; dispatcher å¼åºæã®ã¹ã¿ãã¯:
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| 202 | ; dispatch ããããå ´å: ã¿ã¹ã¯ã¹ã¿ãã¯
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| 203 | ; exit_and_dispatch ããããå ´å:
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| 204 | ; exit_task ããããå ´åã¯ã¿ã¹ã¯ã¹ã¿ãã¯
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| 205 | ; ã«ã¼ãã«èµ·åæã¯å²è¾¼ã¿ã¹ã¿ãã¯
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| 206 | ; ret_int ããããå ´å: ã¿ã¹ã¯ã¹ã¿ãã¯
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| 207 | ; dispatcher_2 ã§ã®å²è¾¼ã¿å¾
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| 208 | ã¡ããããå ´å: å²è¾¼ã¿ã¹ã¿ãã¯
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| 209 | ;
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| 210 | public _exit_and_dispatch
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| 211 |
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| 212 | _exit_and_dispatch:
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| 213 | ldw (_intcnt), 0 ; ãã¹ãã«ã¦ã³ã¿ã¯ãªã¢(ã¿ã¹ã¯ã³ã³ããã¹ã)
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| 214 | dispatcher:
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| 215 | ld xwa, (_schedtsk) ; schedtsk ã runtsk ã«è¨å®
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| 216 | ld (_runtsk), xwa ;
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| 217 | or xwa, xwa ; å®è¡ããã¿ã¹ã¯ãç¡ããã°ã¢ã¤ãã«ã«ã¼ãã¸
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| 218 | jr z, pre_idle_loop ;
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| 219 | ld xsp, (xwa+TCB_sp) ; ã¿ã¹ã¯ã¹ã¿ãã¯ãã¤ã³ã¿ã復帰
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| 220 | ld xhl, (xwa+TCB_pc) ;
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| 221 | jp xhl ; å®è¡åéçªå°ã¸ã¸ã£ã³ã
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| 222 | ;
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| 223 | ; å®è¡ãã¹ãã¿ã¹ã¯ãç¾ããã¾ã§å¾
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| 224 | ã¤å¦ç
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| 225 | ;
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| 226 | pre_idle_loop:
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| 227 | ld xsp, __StackTop ; å²è¾¼ã¿ç¨ã®ã¹ã¿ãã¯ã¸åæ¿ã
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| 228 | incw 1, (_intcnt) ; éã¿ã¹ã¯ã³ã³ããã¹ã
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| 229 | ;
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| 230 | ; ããã§éã¿ã¹ã¯ã³ã³ããã¹ã,å²è¾¼ã¿ã¹ã¿ãã¯ã«åãæããã®ã¯,
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| 231 | ; ããã§çºçããå²è¾¼ã¿å¦çã«ã©ã®ã¹ã¿ãã¯ã使ããã¨ããåé¡ã®è§£æ±ºã¨,
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| 232 | ; å²è¾¼ã¿ãã³ãã©å
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| 233 | ã§ã®ãã£ã¹ãããé²æ¢ã¨ãã2ã¤ã®æå³ãããï¼
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| 234 | ;
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| 235 | idle_loop:
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| 236 | #ifdef SUPPORT_CHG_IPM /* t_unlock_cpu ç¸å½ã®å¦ç */
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| 237 | push sr ; å²è¾¼ã¿ãã¹ã¯ã« task_intmask ãè¨å®
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| 238 | ld wa, (_task_intmask) ;
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| 239 | andw (xsp), ~0x7000 ;
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| 240 | or (xsp), wa ;
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| 241 | pop sr ;
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| 242 | #else /* SUPPORT_CHG_IPM */
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| 243 | ei 0 ; å²è¾¼ã¿è¨±å¯
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| 244 | #endif /* SUPPORT_CHG_IPM */
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| 245 |
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| 246 | halt ; IDLE2ç¶æ
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| 247 | ã¸é·ç§»
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| 248 | nop ; ä¸è¨haltãã³ã¡ã³ã(nopã®ã¿)ã«ããã¨
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| 249 | nop ; ä½æ¶è²»åä½ãè¡ããªãã¢ã¤ãã«ã«ã¼ãã¨ãªã.
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| 250 | nop ;
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| 251 | nop ;
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| 252 | ei 7 ; å²è¾¼ã¿ç¦æ¢
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| 253 | cpw (_reqflg), 0 ; reqflg ã FALSE ã§ããã°
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| 254 | jr z, idle_loop ; idle_loop ã¸
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| 255 | ldw (_reqflg), 0 ; reqflg <--- FALSE
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| 256 | decw 1, (_intcnt) ; ã¿ã¹ã¯ã³ã³ããã¹ãã«æ»ã
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| 257 | jr dispatcher ; dispatcher ã¸æ»ã
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| 258 |
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| 259 | ;
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| 260 | ; é
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| 261 | 延ãã£ã¹ãããå¦ç
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| 262 | ;
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| 263 | ; å¼ã³åºãæ¡ä»¶: SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 264 | ),
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| 265 | ; intcnt = 0(ã¿ã¹ã¯ã³ã³ããã¹ã), ã¿ã¹ã¯ã¹ã¿ãã¯
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| 266 | ; reqflg = TRUE
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| 267 | ; INTNESTã¬ã¸ã¹ã¿ = 1
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| 268 | ;
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| 269 | ret_int:
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| 270 | ldw (_reqflg), 0 ; reqflg <--- FALSE
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| 271 | ld de, 0 ;
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| 272 | ldc intnest, de ; ãã£ã¹ããããããintnest ã¯0
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| 273 | push xiz ; é¢æ°å¼åºã§ä¿è·ãå¿
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| 274 | è¦ãªã¬ã¸ã¹ã¿ã®ä¿å
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| 275 | ld xwa, (_runtsk) ; runtsk ãåå¾
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| 276 | cpw (_enadsp), 0 ; enadsp ã FALSE ãªã
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| 277 | jr z, ret_int_r ; ret_int_r ã¸
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| 278 | cp xwa, (_schedtsk) ; runtsk ã¨schedtsk ãåããªã
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| 279 | jr z, ret_int_r ; ret_int_r ã¸
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| 280 | or xwa, xwa ; runtsk = NULL ãªã
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| 281 | jr z, dispatcher ; ä¿åããdispather ã¸
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| 282 | ld (xwa+TCB_sp), xsp ;
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| 283 | lda xhl, ret_int_r ;
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| 284 | ld (xwa+TCB_pc), xhl ;
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| 285 | jr dispatcher ;
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| 286 |
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| 287 | ;
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| 288 | ; å¼ã³åºãæ¡ä»¶: SRã®IFF=7 (å²è¾¼ã¿ç¦æ¢ç¶æ
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| 289 | ),
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| 290 | ; intcnt = 0(ã¿ã¹ã¯ã³ã³ããã¹ã), ã¿ã¹ã¯ã¹ã¿ãã¯
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| 291 | ; INTNESTã¬ã¸ã¹ã¿ = 0
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| 292 | ;
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| 293 | ; xwa ã«ã¯runtsk ã®ã¢ãã¬ã¹ãæ ¼ç´ããã¦ãã
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| 294 | ;
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| 295 | ret_int_r:
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| 296 | pop xiz
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| 297 | #ifdef SUPPORT_CHG_IPM /* ã¹ã¿ãã¯ã«ããSR ã®IFF ãæä½ */
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| 298 | ld de, (_task_intmask) ;
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| 299 | andw (xsp+24), ~0x7000 ;
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| 300 | or (xsp+24), de ;
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| 301 | #endif /* SUPPORT_CHG_IPM */
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| 302 | ld bc, (xwa+TCB_enatex) ;
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| 303 | bit TCB_enatex_bit, bc ;
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| 304 | jr z, nest_ctrl_r ; enatex ã FALSE ãªããªã¿ã¼ã³
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| 305 | cpw (xwa+TCB_texptn), 0 ; ã¿ã¹ã¯ä¾å¤è¦å ãããå ´å
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| 306 | call nz, _call_texrtn ;
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| 307 | nest_ctrl_r:
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| 308 | ld de, 1 ;
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| 309 | ldc intnest, de ; retiç¨ã«æ¬ä¼¼çã«intnest ã¯1
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| 310 | jr interrupt_r
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| 311 |
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| 312 | ;
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| 313 | ; å²è¾¼ã¿/CPUä¾å¤ã®å
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| 314 | ±éå¦ç
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| 315 | ;
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| 316 | ; å¼åºãæ¡ä»¶:
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| 317 | ; ã»SRã®IFF=7.
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| 318 | ; ã»ã¹ã¿ãã¯ã¯å¤éå²ãè¾¼ã¿ãªãå²è¾¼ã¿ã¹ã¿ãã¯, ããã§ãªããã°
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| 319 | ; ã¿ã¹ã¯ã¹ã¿ãã¯
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| 320 | ; ã»XHL ã«ã¯å²è¾¼ã¿/CPUä¾å¤ãã³ãã©ã®ã¢ãã¬ã¹ãæ ¼ç´ããã¦ãã.
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| 321 | ; ã»AW ã«ã¯æ¬å²è¾¼ã¿ã®åªå
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| 322 | 度ãè¨å®ããã SR ãæ ¼ç´ããã¦ãã.
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| 323 | ;
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| 324 | ; ã¬ã¸ã¹ã¿ãã¹ã¿ãã¯ä¸ã«ã©ã®ããã«ä¿åããã¦ãããã以ä¸ã«ç¤ºã.
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| 325 | ; ãã®å³ã§ã¯ä¸ãä½ä½, ä¸ãé«ä½ã®ã¢ãã¬ã¹ã§, ã¹ã¿ãã¯ã¯ä¸ãã
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| 326 | ; ä¸æ¹åã«åãã£ã¦ç©ã¿ä¸ãããããã®ã¨ãã.
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| 327 | ;
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| 328 | ; --------------------------------------
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| 329 | ; | CPUä¾å¤ãã³ãã©ã®å¼æ° |
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| 330 | ; | CPUä¾å¤æ
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| 331 | å ±(4byte) |
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| 332 | ; | |
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| 333 | ; | |
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| 334 | ; --------------------------------------
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|---|
| 335 | ; | XSP(4byte) | ã¿ã¹ã¯ã¹ã¿ãã¯ãã¤ã³ã¿ï¼
|
|---|
| 336 | ; | â»å段ã®ã¿ | å段ã®å²è¾¼ã¿ã®ã¿ä¿æãããï¼
|
|---|
| 337 | ; | |
|
|---|
| 338 | ; | |
|
|---|
| 339 | ; --------------------------------------
|
|---|
| 340 | ; | XIY(4byte) |
|
|---|
| 341 | ; | |
|
|---|
| 342 | ; | |
|
|---|
| 343 | ; | |
|
|---|
| 344 | ; --------------------------------------
|
|---|
| 345 | ; | XIX(4byte) |
|
|---|
| 346 | ; | |
|
|---|
| 347 | ; | |
|
|---|
| 348 | ; | |
|
|---|
| 349 | ; --------------------------------------
|
|---|
| 350 | ; | XDE(4byte) |
|
|---|
| 351 | ; | |
|
|---|
| 352 | ; | |
|
|---|
| 353 | ; | |
|
|---|
| 354 | ; --------------------------------------
|
|---|
| 355 | ; | XBC(4byte) |
|
|---|
| 356 | ; | |
|
|---|
| 357 | ; | |
|
|---|
| 358 | ; | |
|
|---|
| 359 | ; -------------------------------------- <-- å²è¾¼ã¿å
|
|---|
| 360 | ¥ãå£å¦çã§å¦çãããï¼
|
|---|
| 361 | ; | XHL(4byte) |
|
|---|
| 362 | ; | |
|
|---|
| 363 | ; | |
|
|---|
| 364 | ; | |
|
|---|
| 365 | ; --------------------------------------
|
|---|
| 366 | ; | XAW(4byte) |
|
|---|
| 367 | ; | |
|
|---|
| 368 | ; | |
|
|---|
| 369 | ; | |
|
|---|
| 370 | ; -------------------------------------- <-- å²è¾¼ã¿çºçæã«ãã¼ãã¦ã§ã¢
|
|---|
| 371 | ; | SR(2byte) | ã«ã¦å¦çãããï¼ p_excinfã¯
|
|---|
| 372 | ; | | ãããæãããã«æ¼ç®ããï¼
|
|---|
| 373 | ; --------------------------------------
|
|---|
| 374 | ; | PC(4byte) |
|
|---|
| 375 | ; | |
|
|---|
| 376 | ; | |
|
|---|
| 377 | ; | |
|
|---|
| 378 | ; --------------------------------------
|
|---|
| 379 | ;
|
|---|
| 380 | ; ãã³ãã©ãããªã¿ã¼ã³ããå¾ã¯, å¤éå²è¾¼ã¿ã§ãªã, ã㤠reqflg ã
|
|---|
| 381 | ; TRUE ã«ãªã£ãæã«ï¼ret_int ã¸åå²ããï¼
|
|---|
| 382 | ;
|
|---|
| 383 | ; å¤éå²è¾¼ã¿ãã©ããã¯å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ã®å¤ã§å¤å®ãã.
|
|---|
| 384 | ; intcnt != 0 ãªãã°å¤éå²è¾¼ã¿ã§ããã¨å¤å®ãã.
|
|---|
| 385 | ; ãªãï¼ãã¼ãã¦ã§ã¢ä»æ§ä¸ï¼å²è¾¼ã¿çºçããå²è¾¼ã¿ç¦æ¢ãè¡ãã¾ã§ã®éã«
|
|---|
| 386 | ; å¤éå²è¾¼ã¿ãçºçããã¨ï¼å¤éå²è¾¼ã¿ã§ãããã¨ãã½ããã¦ã§ã¢ã§æ¤ç¥ã§
|
|---|
| 387 | ; ããªãããï¼æåã«çºçããå²è¾¼ã¿å¦çãå®è¡ããªãã¾ã¾ã¿ã¹ã¯ãã£ã¹
|
|---|
| 388 | ; ãããããå¯è½æ§ãããï¼ãã®å¤éå²è¾¼ã¿ãæ¤ç¥ããããã«ãã¼ãã¦ã§ã¢
|
|---|
| 389 | ; INTNEST ã¬ã¸ã¹ã¿ãå©ç¨ããï¼
|
|---|
| 390 | ;
|
|---|
| 391 | ; reqflg ã¯CPUããã¯ç¶æ
|
|---|
| 392 | ã§ãã§ãã¯ãã. ããã§ãªãã¨ï¼
|
|---|
| 393 | ; reqflg ãã§ãã¯å¾ã«èµ·åãããå²è¾¼ã¿ãã³ãã©å
|
|---|
| 394 | ã§
|
|---|
| 395 | ; ãã£ã¹ããããè¦æ±ãããå ´åã«ï¼ãã£ã¹ããããããªã.
|
|---|
| 396 | ;
|
|---|
| 397 | public _interrupt
|
|---|
| 398 |
|
|---|
| 399 | _interrupt:
|
|---|
| 400 | push xbc ; ã¹ã¯ã©ããã¬ã¸ã¹ã¿ã®æ®ããä¿å
|
|---|
| 401 | push xde ;
|
|---|
| 402 | push xix ;
|
|---|
| 403 | push xiy ;
|
|---|
| 404 |
|
|---|
| 405 | ld xbc, xsp ; CPUä¾å¤æ
|
|---|
| 406 | å ±å¼æ°ã«ä½¿ç¨ããããããã§åå¾
|
|---|
| 407 | cpw (_intcnt), 0 ;
|
|---|
| 408 | jr nz, from_int ;
|
|---|
| 409 | ld xsp, __StackTop ; å段ã®å²è¾¼ã¿ã®å ´åã¹ã¿ãã¯ãåãæ¿ã
|
|---|
| 410 | push xbc ; ã¿ã¹ã¯SPã®ä¿æ
|
|---|
| 411 | from_int: ;
|
|---|
| 412 | incw 1, (_intcnt) ; å²è¾¼ã¿ãã¹ãã«ã¦ã³ããã¤ã³ã¯ãªã¡ã³ã
|
|---|
| 413 |
|
|---|
| 414 | add xbc, 24 ; CPUä¾å¤æ
|
|---|
| 415 | å ±å¼æ°çæ
|
|---|
| 416 | push xbc ; å²è¾¼ã¿å¦çã§ã¯æªä½¿ç¨
|
|---|
| 417 | push wa ;
|
|---|
| 418 | pop sr ; æ¬å²è¾¼ã¿ããåªå
|
|---|
| 419 | 度ã®é«ãå²è¾¼ã¿è¨±å¯
|
|---|
| 420 | call xhl ; å²è¾¼ã¿ãã³ãã©/CPUä¾å¤å¦çãå¼ã³åºã
|
|---|
| 421 | ei 7 ; å²è¾¼ã¿ç¦æ¢
|
|---|
| 422 | pop xbc ; ã¹ã¿ãã¯æ°åãã(CPUä¾å¤æ
|
|---|
| 423 | å ±å¼æ°)
|
|---|
| 424 |
|
|---|
| 425 | decw 1, (_intcnt) ; å²è¾¼ã¿ãã¹ãã«ã¦ã³ãããã¯ãªã¡ã³ã
|
|---|
| 426 | jr nz, from_int_r ;
|
|---|
| 427 | pop xbc ; å段ã®å²è¾¼ã¿ã®å ´åã¿ã¹ã¯SPã®å¾©å¸°
|
|---|
| 428 | ld xsp, xbc ;
|
|---|
| 429 | ldc de, intnest ; å²è¾¼ã¿çºçããå²è¾¼ã¿ç¦æ¢ã¾ã§ã®éã«å¤éå²è¾¼ã¿ã
|
|---|
| 430 | djnz de, from_int_r ; çºçãã¦ããå ´åã¯ãã£ã¹ãããããªã
|
|---|
| 431 | cpw (_reqflg), 0 ; reqflg ã TRUE ã§ããã°
|
|---|
| 432 | jp nz, ret_int ; ret_int ã¸
|
|---|
| 433 | from_int_r: ;
|
|---|
| 434 | interrupt_r: ;
|
|---|
| 435 | pop xiy ;ã¹ã¯ã©ããã¬ã¸ã¹ã¿ã復帰
|
|---|
| 436 | pop xix ;
|
|---|
| 437 | pop xde ;
|
|---|
| 438 | pop xbc ;
|
|---|
| 439 | pop xhl ;
|
|---|
| 440 | pop xwa ;
|
|---|
| 441 | reti ;
|
|---|
| 442 |
|
|---|
| 443 | ;
|
|---|
| 444 | ; æªä½¿ç¨å²è¾¼ã¿ã®å¦ç
|
|---|
| 445 | ;
|
|---|
| 446 | public unused_interrupt
|
|---|
| 447 |
|
|---|
| 448 | unused_interrupt:
|
|---|
| 449 | reti
|
|---|
| 450 |
|
|---|
| 451 |
|
|---|
| 452 | end
|
|---|
| 453 |
|
|---|
| 454 |
|
|---|
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