| 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) 2002 by MURANAKA Masaki
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| 10 | * Copyright (C) 2008- by Monami Software Limited Partnership, JAPAN
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| 11 | *
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| 12 | * ä¸è¨èä½æ¨©è
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| 13 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 14 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 15 | * å¤ã»åé
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| 16 | å¸ï¼ä»¥ä¸ï¼å©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 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 44 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 45 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 46 | * å
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| 47 | 責ãããã¨ï¼
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| 48 | *
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| 49 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 50 | ã
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| 51 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 52 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 53 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 54 | * ã®è²¬ä»»ãè² ããªãï¼
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| 55 | *
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| 56 | * @(#) $Id: sys_support.S,v 1.1 2004/07/21 02:49:37 monaka Exp $
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| 57 | */
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| 58 |
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| 59 | /*
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| 60 | * ã¿ã¼ã²ããã·ã¹ãã ä¾åã¢ã¸ã¥ã¼ã« ã¢ã»ã³ããªè¨èªé¨ï¼PC/ATç¨ï¼
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| 61 | */
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| 62 |
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| 63 | #define _MACRO_ONLY
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| 64 | #include "jsp_kernel.h"
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| 65 | #include "offset.h"
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| 66 |
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| 67 | /*
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| 68 | * ä½ã¬ãã«ã®ã¿ã¼ã²ããã·ã¹ãã ä¾åã®åæå
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| 69 | *
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| 70 | * ã¹ã¿ã¼ãã¢ããã¢ã¸ã¥ã¼ã«ã®ä¸ã§ï¼ã¡ã¢ãªã®åæåã®åã«å¼ã³åºãããï¼
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| 71 | */
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| 72 | .text
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| 73 | .globl hardware_init_hook
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| 74 | hardware_init_hook:
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| 75 | movl %cr0, %eax
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| 76 | andl $~0x60000000, %eax
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| 77 | movl %eax, %cr0 /* CD = 0, NW = 0 */
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| 78 | ret;
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| 79 |
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| 80 | #define CALL_HANDLER(x) incl nest; sti; call x; cli; decl nest
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| 81 |
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| 82 | /*
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| 83 | * å²è¾¼ã¿ãã³ãã©ã®åºå
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| 84 | ¥å£å¦ç
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| 85 | *
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| 86 | * å²è¾¼ã¿çªå·ã%ecxã«å
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| 87 | ¥ãã¦å¼ã³åºãããã
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| 88 | */
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| 89 | .text
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| 90 | interrupt:
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| 91 | cld
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| 92 | cmpl $0, nest
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| 93 | jne interrupt_2 /* å
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| 94 | å´ã®ãã³ãã© */
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| 95 | /* å¤å´ã®ãã³ãã© */
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| 96 | movl %esp, %eax
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| 97 | movl STACKTOP, %esp
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| 98 | pushl %eax
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| 99 | interrupt_2:
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| 100 | pushl %ecx /* intno */
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| 101 | movl int_table(,%ecx,4), %eax
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| 102 | testl %eax, %eax
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| 103 | jz 0f
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| 104 | CALL_HANDLER(*%eax)
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| 105 | 0:
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| 106 | popl %eax /* intno */
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| 107 | testb $8, %al
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| 108 | jz 1f
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| 109 | movb $0x20, %al
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| 110 | outb %al, $0xa0 /* slave non-specific EOI */
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| 111 | 1:
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| 112 | movb $0x20, %al
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| 113 | outb %al, $0x20 /* master non-specific EOI */
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| 114 | cmpl $0, nest
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| 115 | jne interrupt_3
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| 116 | popl %eax
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| 117 | movl %eax, %esp
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| 118 | cmpl $0, reqflg
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| 119 | je interrupt_3
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| 120 | ret_int:
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| 121 | movl $0, reqflg
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| 122 | cmpl $0, enadsp
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| 123 | je ret_int_r
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| 124 | movl runtsk, %ebx
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| 125 | cmpl %ebx, schedtsk
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| 126 | je ret_int_r
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| 127 | movl %esp, TCB_esp(%ebx)
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| 128 | movl $ret_int_r, %eax
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| 129 | movl %eax, TCB_eip(%ebx)
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| 130 | jmp dispatch_loop
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| 131 | ret_int_r:
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| 132 | call calltex
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| 133 | interrupt_3:
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| 134 | popa
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| 135 | iret
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| 136 |
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| 137 | #define interrupt(intno) \
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| 138 | .global interrupt##intno ; \
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| 139 | interrupt##intno: ; \
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| 140 | pusha ; \
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| 141 | movl $intno, %ecx ; \
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| 142 | jmp interrupt
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| 143 |
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| 144 | interrupt(0)
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| 145 | interrupt(1)
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| 146 | interrupt(2)
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| 147 | interrupt(3)
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| 148 | interrupt(4)
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| 149 | interrupt(5)
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| 150 | interrupt(6)
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| 151 | interrupt(7)
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| 152 | interrupt(8)
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| 153 | interrupt(9)
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| 154 | interrupt(10)
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| 155 | interrupt(11)
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| 156 | interrupt(12)
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| 157 | interrupt(13)
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| 158 | interrupt(14)
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| 159 | interrupt(15)
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