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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; MenuetOS process management, protected ring3 ;; |
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4 | ;; ;; |
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5 | ;; Distributed under GPL. See file COPYING for details. ;; |
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6 | ;; Copyright 2003 Ville Turjanmaa ;; |
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7 | ;; ;; |
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8 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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9 | |||
10 | align 32 |
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11 | |||
12 | ; GDT TABLE |
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13 | |||
14 | gdts: |
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15 | |||
16 | dw gdte-$-1 |
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17 | dd gdts |
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18 | dw 0 |
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19 | |||
20 | int_code_l: |
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21 | os_code_l: |
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22 | |||
23 | dw 0xffff |
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24 | dw 0x0000 |
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25 | db 0x00 |
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26 | dw 11011111b *256 +10011010b |
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27 | db 0x00 |
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28 | |||
29 | int_data_l: |
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30 | os_data_l: |
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31 | |||
32 | dw 0xffff |
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33 | dw 0x0000 |
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34 | db 0x00 |
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35 | dw 11011111b *256 +10010010b |
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36 | db 0x00 |
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37 | |||
38 | app_code_l: |
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4 | poddubny | 39 | dw ((0x80000000-std_application_base_address) shr 12) and 0xffff |
40 | dw 0 |
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41 | db 0 |
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42 | dw 11010000b*256+11111010b+256*((0x80000000-std_application_base_address) shr 28) |
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43 | db std_application_base_address shr 24 |
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1 | ha | 44 | |
45 | app_data_l: |
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4 | poddubny | 46 | dw (0x80000000-std_application_base_address) shr 12 and 0xffff |
47 | dw 0 |
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48 | db 0 |
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49 | dw 11010000b*256+11110010b+256*((0x80000000-std_application_base_address) shr 28) |
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50 | db std_application_base_address shr 24 |
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1 | ha | 51 | |
8 | poddubny | 52 | graph_data_l: |
1 | ha | 53 | |
8 | poddubny | 54 | dw 0x3ff |
55 | dw 0x0000 |
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56 | db 0x00 |
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57 | dw 11010000b *256 +11110010b |
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58 | db 0x00 |
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59 | |||
60 | tss0_l: |
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61 | times (max_processes+10) dd 0,0 |
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62 | |||
1 | ha | 63 | gdte: |
64 | |||
65 | |||
66 | |||
67 | idtreg: |
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68 | dw 8*0x41-1 |
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69 | dd idts+8 |
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70 | label idts at 0xB100-8 |
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71 | |||
72 | |||
73 | |||
8 | poddubny | 74 | uglobal |
75 | tss_sceleton: |
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76 | l.back dw 0,0 |
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77 | l.esp0 dd 0 |
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78 | l.ss0 dw 0,0 |
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79 | l.esp1 dd 0 |
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80 | l.ss1 dw 0,0 |
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81 | l.esp2 dd 0 |
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82 | l.ss2 dw 0,0 |
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83 | l.cr3 dd 0 |
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84 | l.eip dd 0 |
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85 | l.eflags dd 0 |
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86 | l.eax dd 0 |
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87 | l.ecx dd 0 |
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88 | l.edx dd 0 |
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89 | l.ebx dd 0 |
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90 | l.esp dd 0 |
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91 | l.ebp dd 0 |
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92 | l.esi dd 0 |
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93 | l.edi dd 0 |
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94 | l.es dw 0,0 |
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95 | l.cs dw 0,0 |
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96 | l.ss dw 0,0 |
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97 | l.ds dw 0,0 |
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98 | l.fs dw 0,0 |
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99 | l.gs dw 0,0 |
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100 | l.ldt dw 0,0 |
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101 | l.trap dw 0 |
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102 | l.io dw 0 |
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103 | endg |
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104 | |||
105 | |||
1 | ha | 106 | build_process_gdt_tss_pointer: |
107 | |||
108 | mov ecx,tss_data |
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109 | mov edi,0 |
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110 | setgdtl2: |
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111 | mov [edi+gdts+ tss0 +0], word tss_step |
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112 | mov [edi+gdts+ tss0 +2], cx |
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113 | mov eax,ecx |
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114 | shr eax,16 |
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115 | mov [edi+gdts+ tss0 +4], al |
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116 | mov [edi+gdts+ tss0 +7], ah |
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117 | mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b |
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118 | add ecx,tss_step |
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119 | add edi,8 |
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120 | cmp edi,8*(max_processes+5) |
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121 | jbe setgdtl2 |
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122 | |||
123 | ret |
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124 | |||
125 | |||
126 | build_interrupt_table: |
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127 | |||
6 | poddubny | 128 | mov edi, idts+8 |
129 | mov esi, sys_int |
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8 | poddubny | 130 | mov ecx, 0x40 |
6 | poddubny | 131 | @@: |
132 | mov eax, [esi] |
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133 | mov [edi], ax ; lower part of offset |
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134 | mov [edi+2], word os_code ; segment selector |
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135 | shr eax, 16 |
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136 | mov [edi+4], word 10001110b shl 8 ; interrupt descriptor |
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137 | mov [edi+6], ax |
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138 | add esi, 4 |
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139 | add edi, 8 |
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140 | dec ecx |
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141 | jnz @b |
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8 | poddubny | 142 | |
143 | ;mov edi,8*0x40+idts+8 |
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3 | halyavin | 144 | mov [edi + 0], word (i40 and ((1 shl 16)-1)) |
145 | mov [edi + 2], word os_code |
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146 | mov [edi + 4], word 11101110b*256 |
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9 | halyavin | 147 | mov [edi + 6], word (i40 shr 16) |
1 | ha | 148 | |
149 | ret |
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150 | |||
151 | |||
152 | |||
153 | iglobal |
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154 | sys_int: |
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8 | poddubny | 155 | dd e0,e1,e2,e3,e4,e5,e6,e7,e8,e9,e10,e11,e12,e13,e14,e15 |
156 | dd e16,e17 |
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1 | ha | 157 | times 14 dd unknown_interrupt |
158 | |||
159 | dd irq0 ,irq1 ,p_irq2 ,p_irq3 ,p_irq4 ,p_irq5,p_irq6 ,p_irq7 |
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160 | dd p_irq8,p_irq9,p_irq10,p_irq11,p_irq12,irqD ,p_irq14,p_irq15 |
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161 | |||
162 | times 16 dd unknown_interrupt |
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163 | |||
164 | dd i40 |
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165 | endg |
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166 | |||
40 | halyavin | 167 | macro save_ring3_context |
168 | { |
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58 | mario79 | 169 | push ds es |
170 | pushad |
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40 | halyavin | 171 | } |
172 | macro restore_ring3_context |
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173 | { |
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58 | mario79 | 174 | popad |
175 | pop es ds |
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40 | halyavin | 176 | } |
177 | |||
8 | poddubny | 178 | ; simply return control to interrupted process |
179 | unknown_interrupt: |
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180 | iret |
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1 | ha | 181 | |
22 | poddubny | 182 | macro exc_wo_code [num] |
8 | poddubny | 183 | { |
184 | forward |
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185 | e#num : |
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40 | halyavin | 186 | save_ring3_context |
20 | mario79 | 187 | mov bl, num |
188 | jmp exc_c |
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8 | poddubny | 189 | } |
1 | ha | 190 | |
22 | poddubny | 191 | macro exc_w_code [num] |
192 | { |
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193 | forward |
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194 | e#num : |
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195 | add esp, 4 |
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40 | halyavin | 196 | save_ring3_context |
22 | poddubny | 197 | mov bl, num |
198 | jmp exc_c |
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199 | } |
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200 | |||
201 | exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 16 ; 18, 19 |
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202 | exc_w_code 8, 10, 11, 12, 13, 14, 17 |
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203 | |||
8 | poddubny | 204 | exc_c: |
6 | poddubny | 205 | mov ax, os_data |
206 | mov ds, ax |
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207 | mov es, ax |
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1 | ha | 208 | |
40 | halyavin | 209 | ; test if debugging |
210 | cli |
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211 | mov eax, [0x3000] |
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212 | shl eax, 8 |
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213 | mov eax, [0x80000+eax+0xAC] |
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214 | test eax, eax |
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215 | jnz .debug |
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216 | sti |
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217 | ; not debuggee => say error and terminate |
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218 | add esp, 28h |
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8 | poddubny | 219 | movzx eax, bl |
220 | mov [error_interrupt], eax |
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1 | ha | 221 | call show_error_parameters |
8 | poddubny | 222 | |
223 | mov edx, [0x3010] |
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224 | mov [edx + 0xA], byte 4 |
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225 | |||
1 | ha | 226 | jmp change_task |
227 | |||
40 | halyavin | 228 | .debug: |
229 | ; we are debugged process, notify debugger and suspend ourself |
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230 | ; eax=debugger PID |
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231 | movzx ecx, bl |
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232 | push ecx |
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233 | mov ecx, [0x3010] |
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58 | mario79 | 234 | push dword [ecx+4] ; PID of current process |
40 | halyavin | 235 | push 12 |
236 | pop ecx |
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58 | mario79 | 237 | push 1 ; 1=exception |
40 | halyavin | 238 | call debugger_notify |
239 | pop ecx |
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240 | pop ecx |
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241 | pop ecx |
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242 | mov edx, [0x3010] |
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58 | mario79 | 243 | mov byte [edx+0xA], 1 ; suspended |
40 | halyavin | 244 | call change_task |
245 | restore_ring3_context |
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246 | iretd |
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1 | ha | 247 | |
248 | ;;;;;;;;;;;;;;;;;;;;;;; |
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249 | ;; FPU ERROR HANDLER ;; |
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250 | ;;;;;;;;;;;;;;;;;;;;;;; |
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251 | |||
252 | align 4 |
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8 | poddubny | 253 | e7: |
40 | halyavin | 254 | save_ring3_context |
6 | poddubny | 255 | clts |
256 | mov ax, os_data |
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257 | mov ds, ax |
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258 | mov es, ax |
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259 | |||
260 | mov eax, [prev_user_of_fpu] |
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261 | shl eax, 8 |
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262 | add eax, 0x80000 + 0x10 |
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263 | fsave [eax] |
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264 | |||
265 | mov eax, [0x3000] |
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266 | mov [prev_user_of_fpu], eax |
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267 | shl eax, 8 |
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268 | add eax, 0x80000 |
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269 | cmp [eax + 0x7f], byte 0 |
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270 | je @f |
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271 | frstor [eax+0x10] |
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272 | @@: |
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273 | mov [eax + 0x7f], byte 1 |
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40 | halyavin | 274 | restore_ring3_context |
6 | poddubny | 275 | iret |
276 | |||
277 | iglobal |
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278 | prev_user_of_fpu dd 1 |
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279 | endg |
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1 | ha | 280 | |
281 | |||
282 | writehex: |
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283 | pusha |
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8 | poddubny | 284 | |
285 | mov edi, [write_error_to] |
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286 | mov esi, 8 |
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287 | @@: |
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288 | mov ecx, eax |
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289 | and ecx, 0xf |
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1 | ha | 290 | |
8 | poddubny | 291 | mov cl,[ecx+hexletters] |
1 | ha | 292 | mov [edi],cl |
8 | poddubny | 293 | dec edi |
1 | ha | 294 | |
8 | poddubny | 295 | shr eax,4 |
1 | ha | 296 | dec esi |
8 | poddubny | 297 | jnz @b |
1 | ha | 298 | |
299 | popa |
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300 | ret |
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301 | |||
302 | iglobal |
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303 | hexletters db '0123456789ABCDEF' |
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304 | |||
305 | error_interrupt dd -1 |
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306 | |||
307 | process_error db 'K : Process - forced terminate INT: 00000000',13,10,0 |
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308 | process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0 |
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309 | process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0 |
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310 | system_error db 'K : Kernel error',13,10,0 |
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311 | endg |
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312 | |||
313 | uglobal |
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314 | write_error_to dd 0x0 |
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315 | endg |
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316 | |||
317 | show_error_parameters: |
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318 | |||
319 | mov [write_error_to],process_pid+43 |
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320 | mov eax,[0x3000] |
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321 | shl eax, 5 |
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322 | mov eax,[0x3000+4+eax] |
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323 | call writehex |
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324 | |||
325 | mov [write_error_to],process_error+43 |
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326 | mov eax,[error_interrupt] |
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327 | call writehex |
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16 | poddubny | 328 | |
329 | cmp dword [esp+4+4], os_code ; CS |
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330 | jnz @f |
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10 | poddubny | 331 | mov esi,system_error |
332 | call sys_msg_board_str |
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333 | @@: |
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16 | poddubny | 334 | mov eax, [esp+4] ; EIP |
10 | poddubny | 335 | |
1 | ha | 336 | mov [write_error_to],process_eip+43 |
337 | call writehex |
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338 | |||
339 | mov esi,process_error |
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340 | call sys_msg_board_str |
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341 | |||
342 | mov esi,process_pid |
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343 | call sys_msg_board_str |
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344 | |||
345 | mov esi,process_eip |
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346 | call sys_msg_board_str |
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347 | |||
348 | ret |
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349 | |||
350 | |||
351 | |||
6 | poddubny | 352 | ; irq1 -> hid/keyboard.inc |
1 | ha | 353 | |
354 | |||
10 | poddubny | 355 | macro irqh [num] |
8 | poddubny | 356 | { |
357 | forward |
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358 | p_irq#num : |
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40 | halyavin | 359 | save_ring3_context |
8 | poddubny | 360 | mov edi, num |
361 | jmp irq_c |
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362 | } |
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1 | ha | 363 | |
33 | mario79 | 364 | irqh 2,5,7,8,9,10,11,14,15 |
1 | ha | 365 | |
8 | poddubny | 366 | irq_c: |
367 | mov ax, os_data |
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368 | mov ds, ax |
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369 | mov es, ax |
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1 | ha | 370 | call irqhandler |
40 | halyavin | 371 | restore_ring3_context |
8 | poddubny | 372 | iret |
11 | poddubny | 373 | |
374 | p_irq6: |
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40 | halyavin | 375 | save_ring3_context |
11 | poddubny | 376 | mov ax, os_data |
377 | mov ds, ax |
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378 | mov es, ax |
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379 | call fdc_irq |
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33 | mario79 | 380 | call ready_for_next_irq |
40 | halyavin | 381 | restore_ring3_context |
33 | mario79 | 382 | iret |
15 | poddubny | 383 | |
33 | mario79 | 384 | p_irq3: |
40 | halyavin | 385 | save_ring3_context |
33 | mario79 | 386 | mov ax, os_data |
387 | mov ds, ax |
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388 | mov es, ax |
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58 | mario79 | 389 | cmp [com2_mouse_detected],0 |
390 | je old_irq3_handler |
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33 | mario79 | 391 | call check_mouse_data_com2 |
58 | mario79 | 392 | jmp p_irq3_1 |
393 | old_irq3_handler: |
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394 | mov edi,3 |
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395 | call irqhandler |
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396 | p_irq3_1: |
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40 | halyavin | 397 | restore_ring3_context |
33 | mario79 | 398 | iret |
15 | poddubny | 399 | |
33 | mario79 | 400 | p_irq4: |
40 | halyavin | 401 | save_ring3_context |
33 | mario79 | 402 | mov ax, os_data |
403 | mov ds, ax |
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404 | mov es, ax |
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58 | mario79 | 405 | cmp [com1_mouse_detected],0 |
406 | je old_irq4_handler |
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33 | mario79 | 407 | call check_mouse_data_com1 |
58 | mario79 | 408 | jmp p_irq4_1 |
409 | old_irq4_handler: |
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410 | mov edi,4 |
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411 | call irqhandler |
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412 | p_irq4_1: |
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40 | halyavin | 413 | restore_ring3_context |
11 | poddubny | 414 | iret |
415 | |||
33 | mario79 | 416 | p_irq12: |
40 | halyavin | 417 | save_ring3_context |
33 | mario79 | 418 | mov ax, os_data |
419 | mov ds, ax |
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420 | mov es, ax |
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421 | call check_mouse_data_ps2 |
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40 | halyavin | 422 | restore_ring3_context |
33 | mario79 | 423 | iret |
424 | |||
425 | ready_for_next_irq: |
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426 | mov [check_idle_semaphore],5 |
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427 | mov al, 0x20 |
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428 | out 0x20, al |
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429 | ret |
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430 | |||
431 | ready_for_next_irq_1: |
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432 | mov [check_idle_semaphore],5 |
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433 | mov al, 0x20 |
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434 | out 0xa0,al |
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435 | out 0x20, al |
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436 | ret |
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437 | |||
6 | poddubny | 438 | irqD: |
40 | halyavin | 439 | save_ring3_context |
8 | poddubny | 440 | mov ax, os_data |
441 | mov ds, ax |
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442 | mov es, ax |
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443 | |||
6 | poddubny | 444 | mov dx,0xf0 |
445 | mov al,0 |
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446 | out dx,al |
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1 | ha | 447 | |
6 | poddubny | 448 | mov dx,0xa0 |
449 | mov al,0x20 |
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450 | out dx,al |
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451 | mov dx,0x20 |
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40 | halyavin | 452 | out dx,al |
453 | |||
454 | restore_ring3_context |
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6 | poddubny | 455 | |
8 | poddubny | 456 | iret |
1 | ha | 457 | |
458 | |||
459 | irqhandler: |
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460 | |||
461 | push edi |
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462 | |||
463 | mov esi,edi ; 1 |
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464 | shl esi,6 ; 1 |
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465 | add esi,irq00read ; 1 |
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466 | shl edi,12 ; 1 |
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467 | add edi,0x2E0000 |
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468 | |||
469 | mov [check_idle_semaphore],5 |
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470 | |||
471 | irqnewread: |
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472 | |||
473 | mov dx,[esi] ; 2+ |
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474 | |||
475 | cmp dx,0 ; 1 |
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476 | jz irqover |
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477 | cmp [esi+3],byte 1 ; 2 ; byte read |
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478 | jne noirqbyte ; 4-11 |
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479 | |||
480 | in al,dx |
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481 | |||
482 | mov edx,[edi] |
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483 | cmp edx,4000 |
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484 | je irqfull |
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485 | mov ebx,edi |
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486 | add ebx,0x10 |
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487 | add ebx,edx |
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488 | mov [ebx],al |
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489 | inc edx |
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490 | mov [edi],edx |
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491 | |||
492 | add esi,4 |
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493 | jmp irqnewread |
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494 | |||
495 | noirqbyte: |
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496 | |||
497 | |||
498 | cmp [esi+3],byte 2 ; word read |
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499 | jne noirqword |
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500 | |||
501 | in ax,dx |
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502 | |||
503 | mov edx,[edi] |
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504 | cmp edx,4000 |
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505 | je irqfull |
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506 | mov ebx,edi |
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507 | add ebx,0x10 |
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508 | add ebx,edx |
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509 | mov [ebx],ax |
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510 | add edx,2 |
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511 | mov [edi],edx |
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512 | add esi,4 |
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513 | jmp irqnewread |
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514 | |||
515 | noirqword: |
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516 | irqfull: |
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517 | irqover: |
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518 | |||
519 | mov al,0x20 ; ready for next irq |
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520 | out 0x20,al |
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521 | |||
522 | pop ebx |
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523 | cmp ebx,7 |
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524 | jbe noa0 |
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525 | out 0xa0,al |
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526 | noa0: |
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527 | |||
528 | ret |
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529 | |||
530 | |||
531 | |||
532 | set_application_table_status: |
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533 | push eax |
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534 | |||
535 | mov eax,[0x3000] |
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536 | shl eax, 5 |
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537 | add eax,0x3000+4 |
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538 | mov eax,[eax] |
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539 | |||
540 | mov [application_table_status],eax |
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541 | |||
542 | pop eax |
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543 | |||
544 | ret |
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545 | |||
546 | |||
547 | clear_application_table_status: |
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548 | push eax |
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549 | |||
550 | mov eax,[0x3000] |
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551 | shl eax, 5 |
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552 | add eax,0x3000+4 |
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553 | mov eax,[eax] |
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554 | |||
555 | cmp eax,[application_table_status] |
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556 | jne apptsl1 |
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557 | mov [application_table_status],0 |
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558 | apptsl1: |
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559 | |||
560 | pop eax |
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561 | |||
562 | ret |
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563 | |||
564 | |||
565 | |||
566 | sys_resize_app_memory: |
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567 | ; eax = 1 - resize |
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568 | ; ebx = new amount of memory |
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569 | |||
570 | cmp eax,1 |
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4 | poddubny | 571 | jne .no_application_mem_resize |
1 | ha | 572 | |
4 | poddubny | 573 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 574 | |
575 | |||
4 | poddubny | 576 | .no_application_mem_resize: |
1 | ha | 577 | |
578 | ret |
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579 | |||
580 | |||
581 | |||
582 | get_app_params: |
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583 | |||
584 | push eax |
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585 | |||
586 | cmp [0x90000+6],word '00' |
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587 | jne no_00_header |
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588 | |||
589 | mov eax,[0x90000+12] |
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590 | mov [app_start],eax |
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591 | mov eax,[0x90000+16] |
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592 | mov [app_i_end],eax |
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593 | mov eax,[0x90000+20] |
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594 | mov [app_mem],eax |
||
595 | shr eax,1 |
||
596 | sub eax,0x10 |
||
597 | mov [app_esp],eax |
||
598 | mov eax,[0x90000+24] |
||
599 | mov [app_i_param],eax |
||
600 | mov [app_i_icon],dword 0 |
||
601 | |||
602 | pop eax |
||
603 | mov esi,1 |
||
604 | ret |
||
605 | |||
606 | no_00_header: |
||
607 | |||
608 | |||
609 | cmp [0x90000+6],word '01' |
||
610 | jne no_01_header |
||
611 | |||
612 | mov eax,[0x90000+12] |
||
613 | mov [app_start],eax |
||
614 | mov eax,[0x90000+16] |
||
615 | mov [app_i_end],eax |
||
616 | mov eax,[0x90000+20] |
||
617 | mov [app_mem],eax |
||
618 | mov eax,[0x90000+24] |
||
619 | mov [app_esp],eax |
||
620 | mov eax,[0x90000+28] |
||
621 | mov [app_i_param],eax |
||
622 | mov eax,[0x90000+32] |
||
623 | mov [app_i_icon],eax |
||
624 | |||
625 | pop eax |
||
626 | mov esi,1 |
||
627 | ret |
||
628 | |||
629 | no_01_header: |
||
630 | |||
631 | pop eax |
||
632 | mov esi,0 |
||
633 | ret |
||
634 | |||
635 | |||
636 | start_application_fl: |
||
637 | jmp new_start_application_fl |
||
638 | |||
639 | ;************************************************************************ |
||
640 | |||
641 | start_application_floppy: |
||
642 | jmp new_start_application_floppy |
||
643 | |||
644 | ;******************************************************************** |
||
645 | |||
646 | start_application_hd: |
||
647 | jmp new_start_application_hd |
||
648 | |||
649 | uglobal |
||
650 | new_process_place dd 0x0 |
||
651 | app_start dd 0x0 |
||
652 | app_i_end dd 0x0 |
||
653 | app_mem dd 0x0 |
||
654 | app_esp dd 0x0 |
||
655 | app_i_param dd 0x0 |
||
656 | app_i_icon dd 0x0 |
||
657 | app_mem_pos dd 0x0 |
||
5 | halyavin | 658 | appl_path dd 0x0 |
659 | appl_path_size dd 0x0 |
||
1 | ha | 660 | endg |
661 | |||
662 | iglobal |
||
663 | hd_app_string db 'HDAPP ' |
||
664 | process_loading db 'K : Process - loading ',13,10,0 |
||
665 | process_running db 'K : Process - done',13,10,0 |
||
666 | first_gdt_search dd 0x2 |
||
667 | endg |
||
668 | |||
669 | |||
670 | sys_threads: |
||
671 | |||
672 | ; eax=1 create thread |
||
673 | ; |
||
674 | ; ebx=thread start |
||
675 | ; ecx=thread stack value |
||
676 | ; |
||
677 | ; on return : eax = pid |
||
678 | jmp new_sys_threads |
||
679 | |||
680 | iglobal |
||
681 | process_terminating db 'K : Process - terminating',13,10,0 |
||
682 | process_terminated db 'K : Process - done',13,10,0 |
||
683 | endg |
||
684 | |||
685 | |||
686 | terminate: ; terminate application |
||
687 | push esi |
||
688 | mov esi,process_terminating |
||
689 | call sys_msg_board_str |
||
690 | pop esi |
||
691 | |||
40 | halyavin | 692 | @@: |
1 | ha | 693 | cli |
694 | cmp [application_table_status],0 |
||
695 | je term9 |
||
696 | sti |
||
697 | call change_task |
||
40 | halyavin | 698 | jmp @b |
1 | ha | 699 | term9: |
700 | |||
701 | call set_application_table_status |
||
702 | |||
703 | mov eax,esi |
||
704 | call dispose_app_cr3_table |
||
705 | |||
706 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
707 | jne fpu_ok_1 |
||
708 | mov [prev_user_of_fpu],1 |
||
709 | fpu_ok_1: |
||
710 | |||
711 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
712 | mov [0xf500],byte 0 ; empty button buffer |
||
713 | |||
714 | |||
715 | mov ecx,esi ; remove buttons |
||
716 | bnewba2: |
||
717 | mov edi,[0xfe88] |
||
718 | mov eax,edi |
||
719 | cld |
||
720 | movzx ebx,word [edi] |
||
721 | inc bx |
||
722 | bnewba: |
||
723 | dec bx |
||
724 | jz bnmba |
||
725 | add eax,0x10 |
||
726 | cmp cx,[eax] |
||
727 | jnz bnewba |
||
728 | pusha |
||
729 | mov ecx,ebx |
||
730 | inc ecx |
||
731 | shl ecx,4 |
||
732 | mov ebx,eax |
||
733 | add eax,0x10 |
||
734 | call memmove |
||
735 | dec dword [edi] |
||
736 | popa |
||
737 | jmp bnewba2 |
||
738 | bnmba: |
||
739 | |||
740 | pusha ; save window coordinates for window restoring |
||
741 | cld |
||
742 | shl esi,5 |
||
743 | add esi,window_data |
||
744 | mov ax,[esi+0] |
||
745 | mov word [dlx],ax |
||
746 | mov bx,[esi+8] |
||
747 | add ax,bx |
||
748 | mov word [dlxe],ax |
||
749 | mov ax,[esi+4] |
||
750 | mov word [dly],ax |
||
751 | mov bx,[esi+12] |
||
752 | add ax,bx |
||
753 | mov word [dlye],ax |
||
754 | mov [esi+0],word 0 |
||
755 | mov [esi+8],word 5 |
||
756 | mov ax,[0xFE04] |
||
757 | mov [esi+4],ax |
||
758 | mov [esi+12],word 5 |
||
759 | xor eax, eax |
||
760 | mov [esi+16],eax;dword 0 |
||
761 | mov [esi+20],eax;dword 0 |
||
762 | mov [esi+24],eax;dword 0 |
||
763 | mov [esi+28],eax;dword 0 |
||
764 | popa |
||
765 | |||
766 | pusha |
||
767 | mov edi,esi |
||
768 | shl edi,5 |
||
769 | add edi,window_data |
||
770 | mov ecx,32/4 |
||
771 | xor eax, eax |
||
772 | ; cld |
||
773 | rep stosd |
||
774 | |||
775 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
776 | add eax,2 |
||
777 | |||
778 | mov edi,esi |
||
779 | shl edi,5 |
||
780 | add edi,window_data |
||
781 | mov [edi+4],eax |
||
782 | |||
783 | popa |
||
784 | |||
785 | pusha |
||
786 | mov edi,esi |
||
787 | shl edi,5 |
||
788 | add edi,draw_data |
||
789 | mov ecx,32/4 |
||
790 | xor eax, eax |
||
791 | ; cld |
||
792 | rep stosd |
||
793 | popa |
||
794 | |||
40 | halyavin | 795 | ; debuggee test |
796 | pushad |
||
797 | mov edi, esi |
||
798 | shl edi, 5 |
||
799 | mov eax, [0x80000+edi*8+0xAC] |
||
800 | test eax, eax |
||
801 | jz .nodebug |
||
802 | push 8 |
||
803 | pop ecx |
||
804 | push dword [0x3000+edi+0x4] ; PID |
||
805 | push 2 |
||
806 | call debugger_notify |
||
807 | pop ecx |
||
808 | pop ecx |
||
809 | .nodebug: |
||
810 | popad |
||
811 | |||
1 | ha | 812 | pusha ; at 0x80000+ |
813 | mov edi,esi |
||
814 | shl edi,8 |
||
815 | add edi,0x80000 |
||
816 | mov ecx,256/4 |
||
817 | xor eax, eax |
||
818 | ; cld |
||
819 | rep stosd |
||
820 | popa |
||
821 | |||
822 | pusha ; name to spaces |
||
823 | mov edi,esi |
||
824 | shl edi,8 |
||
825 | add edi,0x80000 |
||
826 | mov ecx,11 |
||
827 | mov eax,' ' |
||
828 | ; cld |
||
829 | rep stosb |
||
830 | popa |
||
831 | |||
832 | pusha ; C000 --> C400 |
||
833 | mov eax, 0xc000 |
||
834 | mov esi, 0 |
||
835 | nlc40: |
||
836 | add eax, 2 |
||
837 | inc esi |
||
838 | cmp esi, [0x3004] |
||
839 | jae nlc41 |
||
840 | movzx ecx, word [eax] |
||
841 | mov [0xC400 + ecx*2], si |
||
842 | jmp nlc40 |
||
843 | nlc41: |
||
844 | popa |
||
845 | |||
846 | pusha ; remove hd1 reservation |
||
847 | mov edx,esi |
||
848 | shl edx, 5 ;imul edx,0x20 |
||
849 | add edx,0x3000 |
||
850 | mov edx,[edx+4] |
||
851 | cmp [hd1_status],edx |
||
852 | jne no_hd1_s_remove |
||
853 | mov [hd1_status],0 |
||
854 | no_hd1_s_remove: |
||
855 | popa |
||
856 | |||
857 | pusha ; remove all irq reservations |
||
858 | mov edx,esi |
||
859 | shl edx, 5 ;imul edx,0x20 |
||
860 | add edx,0x3000 |
||
861 | mov edx,[edx+4] |
||
862 | mov edi,irq_owner |
||
863 | mov ecx,16 |
||
864 | newirqfree: |
||
865 | cmp [edi],edx |
||
866 | jne nofreeirq |
||
867 | mov [edi],dword 0 |
||
868 | nofreeirq: |
||
869 | add edi,4 |
||
870 | loop newirqfree |
||
871 | popa |
||
872 | |||
873 | |||
874 | pusha ; remove all port reservations |
||
33 | mario79 | 875 | mov [deleted_process],esi |
1 | ha | 876 | mov edx,esi |
877 | shl edx, 5 ;imul edx,0x20 |
||
878 | add edx,0x3000 |
||
879 | mov edx,[edx+4] |
||
880 | |||
881 | rmpr0: |
||
882 | |||
883 | mov esi,[0x2d0000] |
||
884 | |||
885 | cmp esi,0 |
||
886 | je rmpr9 |
||
887 | |||
888 | rmpr3: |
||
889 | |||
890 | mov edi,esi |
||
891 | shl edi,4 |
||
892 | add edi,0x2d0000 |
||
893 | |||
894 | cmp edx,[edi] |
||
895 | je rmpr4 |
||
896 | |||
897 | dec esi |
||
898 | jnz rmpr3 |
||
899 | |||
900 | jmp rmpr9 |
||
901 | |||
902 | rmpr4: |
||
903 | |||
904 | mov ecx,256 |
||
905 | sub ecx,esi |
||
906 | shl ecx,4 |
||
907 | |||
908 | mov esi,edi |
||
909 | add esi,16 |
||
910 | cld |
||
911 | rep movsb |
||
912 | |||
913 | dec dword [0x2d0000] |
||
914 | |||
915 | jmp rmpr0 |
||
916 | |||
917 | rmpr9: |
||
918 | |||
919 | popa |
||
920 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 921 | shl edi, 5 |
1 | ha | 922 | mov [edi+0x300A],byte 9 |
40 | halyavin | 923 | ; debugger test - terminate all debuggees |
924 | mov eax, 2 |
||
925 | mov ecx, 0x80000+2*0x100+0xAC |
||
926 | .xd0: |
||
927 | cmp eax, [0x3004] |
||
928 | ja .xd1 |
||
929 | cmp dword [ecx], esi |
||
930 | jnz @f |
||
931 | and dword [ecx], 0 |
||
932 | pushad |
||
933 | xchg eax, ebx |
||
934 | mov eax, 2 |
||
935 | call sys_system |
||
936 | popad |
||
937 | @@: |
||
938 | inc eax |
||
939 | add ecx, 0x100 |
||
940 | jmp .xd0 |
||
941 | .xd1: |
||
1 | ha | 942 | ; call systest |
943 | sti ; .. and life goes on |
||
944 | |||
945 | ; movzx eax,word [dlx] |
||
946 | ; movzx ebx,word [dly] |
||
947 | ; movzx ecx,word [dlxe] |
||
948 | ; movzx edx,word [dlye] |
||
949 | call calculatescreen |
||
33 | mario79 | 950 | cli |
951 | mov eax,[deleted_process] |
||
952 | cmp eax,[active_process] |
||
953 | jne no_activate_process |
||
954 | call read_active_process_stack |
||
955 | no_activate_process: |
||
956 | sti |
||
1 | ha | 957 | xor eax, eax |
958 | xor esi, esi |
||
959 | call redrawscreen |
||
960 | |||
961 | mov [0xfff4],byte 0 ; no mouse background |
||
962 | mov [0xfff5],byte 0 ; draw mouse |
||
963 | |||
964 | mov [application_table_status],0 |
||
965 | mov esi,process_terminated |
||
966 | call sys_msg_board_str |
||
33 | mario79 | 967 | ret |
1 | ha | 968 | |
33 | mario79 | 969 | save_active_process_stack: |
970 | cmp [active_proc_stack_coun],0xa400+0x400-4 |
||
971 | jne @f |
||
972 | mov [active_proc_stack_coun],0xa400-4 |
||
973 | @@: |
||
974 | push eax |
||
975 | push ebx |
||
976 | mov eax,[active_process] |
||
977 | shl eax,5 |
||
978 | add eax,0x3000 |
||
979 | mov [eax-twdw+31],byte 1 |
||
980 | add [active_proc_stack_coun],4 |
||
981 | mov eax,[active_process] |
||
982 | mov ebx,[active_proc_stack_coun] |
||
983 | mov [ebx],eax |
||
984 | pop ebx |
||
985 | pop eax |
||
1 | ha | 986 | ret |
987 | |||
33 | mario79 | 988 | read_active_process_stack: |
989 | cmp [active_proc_stack_coun],0xa400-4 |
||
990 | jne @f |
||
991 | mov [active_proc_stack_coun],0xa400+0x400-4 |
||
992 | @@: |
||
993 | push eax |
||
994 | push ebx |
||
995 | mov ebx,[active_proc_stack_coun] |
||
996 | mov eax,[ebx] |
||
997 | mov [0xff01],eax ; activate |
||
998 | sub [active_proc_stack_coun],4 |
||
999 | mov [active_process_flag],1 |
||
1000 | pop ebx |
||
1001 | pop eax |
||
1002 | ret |
||
1003 | |||
1 | ha | 1004 | iglobal |
1005 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
8 | poddubny | 1006 | boot_sched_2 db 'Building IDT table',0 |
1 | ha | 1007 | endg |
1008 | |||
1009 | |||
1010 | build_scheduler: |
||
1011 | |||
1012 | mov esi,boot_sched_1 |
||
1013 | call boot_log |
||
1014 | call build_process_gdt_tss_pointer |
||
1015 | |||
8 | poddubny | 1016 | mov esi,boot_sched_2 |
1 | ha | 1017 | call boot_log |
1018 | call build_interrupt_table |
||
1019 | |||
1020 | ret |
||
1021 |