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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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169 | push ds es |
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170 | pushad |
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171 | } |
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172 | macro restore_ring3_context |
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173 | { |
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174 | popad |
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175 | pop es ds |
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176 | } |
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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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234 | push dword [ecx+4] ; PID of current process |
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235 | push 12 |
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236 | pop ecx |
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237 | push 1 ; 1=exception |
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238 | call debugger_notify |
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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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243 | mov byte [edx+0xA], 1 ; suspended |
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244 | call change_task |
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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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389 | call check_mouse_data_com2 |
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40 | halyavin | 390 | restore_ring3_context |
33 | mario79 | 391 | iret |
15 | poddubny | 392 | |
33 | mario79 | 393 | p_irq4: |
40 | halyavin | 394 | save_ring3_context |
33 | mario79 | 395 | mov ax, os_data |
396 | mov ds, ax |
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397 | mov es, ax |
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398 | call check_mouse_data_com1 |
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40 | halyavin | 399 | restore_ring3_context |
11 | poddubny | 400 | iret |
401 | |||
33 | mario79 | 402 | p_irq12: |
40 | halyavin | 403 | save_ring3_context |
33 | mario79 | 404 | mov ax, os_data |
405 | mov ds, ax |
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406 | mov es, ax |
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407 | call check_mouse_data_ps2 |
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40 | halyavin | 408 | restore_ring3_context |
33 | mario79 | 409 | iret |
410 | |||
411 | ready_for_next_irq: |
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412 | mov [check_idle_semaphore],5 |
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413 | mov al, 0x20 |
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414 | out 0x20, al |
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415 | ret |
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416 | |||
417 | ready_for_next_irq_1: |
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418 | mov [check_idle_semaphore],5 |
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419 | mov al, 0x20 |
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420 | out 0xa0,al |
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421 | out 0x20, al |
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422 | ret |
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423 | |||
6 | poddubny | 424 | irqD: |
40 | halyavin | 425 | save_ring3_context |
8 | poddubny | 426 | mov ax, os_data |
427 | mov ds, ax |
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428 | mov es, ax |
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429 | |||
6 | poddubny | 430 | mov dx,0xf0 |
431 | mov al,0 |
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432 | out dx,al |
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1 | ha | 433 | |
6 | poddubny | 434 | mov dx,0xa0 |
435 | mov al,0x20 |
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436 | out dx,al |
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437 | mov dx,0x20 |
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40 | halyavin | 438 | out dx,al |
439 | |||
440 | restore_ring3_context |
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6 | poddubny | 441 | |
8 | poddubny | 442 | iret |
1 | ha | 443 | |
444 | |||
445 | irqhandler: |
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446 | |||
447 | push edi |
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448 | |||
449 | mov esi,edi ; 1 |
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450 | shl esi,6 ; 1 |
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451 | add esi,irq00read ; 1 |
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452 | shl edi,12 ; 1 |
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453 | add edi,0x2E0000 |
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454 | |||
455 | mov [check_idle_semaphore],5 |
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456 | |||
457 | irqnewread: |
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458 | |||
459 | mov dx,[esi] ; 2+ |
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460 | |||
461 | cmp dx,0 ; 1 |
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462 | jz irqover |
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463 | cmp [esi+3],byte 1 ; 2 ; byte read |
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464 | jne noirqbyte ; 4-11 |
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465 | |||
466 | in al,dx |
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467 | |||
468 | mov edx,[edi] |
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469 | cmp edx,4000 |
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470 | je irqfull |
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471 | mov ebx,edi |
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472 | add ebx,0x10 |
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473 | add ebx,edx |
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474 | mov [ebx],al |
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475 | inc edx |
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476 | mov [edi],edx |
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477 | |||
478 | add esi,4 |
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479 | jmp irqnewread |
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480 | |||
481 | noirqbyte: |
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482 | |||
483 | |||
484 | cmp [esi+3],byte 2 ; word read |
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485 | jne noirqword |
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486 | |||
487 | in ax,dx |
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488 | |||
489 | mov edx,[edi] |
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490 | cmp edx,4000 |
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491 | je irqfull |
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492 | mov ebx,edi |
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493 | add ebx,0x10 |
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494 | add ebx,edx |
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495 | mov [ebx],ax |
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496 | add edx,2 |
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497 | mov [edi],edx |
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498 | add esi,4 |
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499 | jmp irqnewread |
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500 | |||
501 | noirqword: |
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502 | irqfull: |
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503 | irqover: |
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504 | |||
505 | mov al,0x20 ; ready for next irq |
||
506 | out 0x20,al |
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507 | |||
508 | pop ebx |
||
509 | cmp ebx,7 |
||
510 | jbe noa0 |
||
511 | out 0xa0,al |
||
512 | noa0: |
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513 | |||
514 | ret |
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515 | |||
516 | |||
517 | |||
518 | set_application_table_status: |
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519 | push eax |
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520 | |||
521 | mov eax,[0x3000] |
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522 | shl eax, 5 |
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523 | add eax,0x3000+4 |
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524 | mov eax,[eax] |
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525 | |||
526 | mov [application_table_status],eax |
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527 | |||
528 | pop eax |
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529 | |||
530 | ret |
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531 | |||
532 | |||
533 | clear_application_table_status: |
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534 | push eax |
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535 | |||
536 | mov eax,[0x3000] |
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537 | shl eax, 5 |
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538 | add eax,0x3000+4 |
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539 | mov eax,[eax] |
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540 | |||
541 | cmp eax,[application_table_status] |
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542 | jne apptsl1 |
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543 | mov [application_table_status],0 |
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544 | apptsl1: |
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545 | |||
546 | pop eax |
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547 | |||
548 | ret |
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549 | |||
550 | |||
551 | |||
552 | sys_resize_app_memory: |
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553 | ; eax = 1 - resize |
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554 | ; ebx = new amount of memory |
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555 | |||
556 | cmp eax,1 |
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4 | poddubny | 557 | jne .no_application_mem_resize |
1 | ha | 558 | |
4 | poddubny | 559 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 560 | |
561 | |||
4 | poddubny | 562 | .no_application_mem_resize: |
1 | ha | 563 | |
564 | ret |
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565 | |||
566 | |||
567 | |||
568 | get_app_params: |
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569 | |||
570 | push eax |
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571 | |||
572 | cmp [0x90000+6],word '00' |
||
573 | jne no_00_header |
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574 | |||
575 | mov eax,[0x90000+12] |
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576 | mov [app_start],eax |
||
577 | mov eax,[0x90000+16] |
||
578 | mov [app_i_end],eax |
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579 | mov eax,[0x90000+20] |
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580 | mov [app_mem],eax |
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581 | shr eax,1 |
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582 | sub eax,0x10 |
||
583 | mov [app_esp],eax |
||
584 | mov eax,[0x90000+24] |
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585 | mov [app_i_param],eax |
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586 | mov [app_i_icon],dword 0 |
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587 | |||
588 | pop eax |
||
589 | mov esi,1 |
||
590 | ret |
||
591 | |||
592 | no_00_header: |
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593 | |||
594 | |||
595 | cmp [0x90000+6],word '01' |
||
596 | jne no_01_header |
||
597 | |||
598 | mov eax,[0x90000+12] |
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599 | mov [app_start],eax |
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600 | mov eax,[0x90000+16] |
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601 | mov [app_i_end],eax |
||
602 | mov eax,[0x90000+20] |
||
603 | mov [app_mem],eax |
||
604 | mov eax,[0x90000+24] |
||
605 | mov [app_esp],eax |
||
606 | mov eax,[0x90000+28] |
||
607 | mov [app_i_param],eax |
||
608 | mov eax,[0x90000+32] |
||
609 | mov [app_i_icon],eax |
||
610 | |||
611 | pop eax |
||
612 | mov esi,1 |
||
613 | ret |
||
614 | |||
615 | no_01_header: |
||
616 | |||
617 | pop eax |
||
618 | mov esi,0 |
||
619 | ret |
||
620 | |||
621 | |||
622 | start_application_fl: |
||
623 | jmp new_start_application_fl |
||
624 | |||
625 | ;************************************************************************ |
||
626 | |||
627 | start_application_floppy: |
||
628 | jmp new_start_application_floppy |
||
629 | |||
630 | ;******************************************************************** |
||
631 | |||
632 | start_application_hd: |
||
633 | jmp new_start_application_hd |
||
634 | |||
635 | uglobal |
||
636 | new_process_place dd 0x0 |
||
637 | app_start dd 0x0 |
||
638 | app_i_end dd 0x0 |
||
639 | app_mem dd 0x0 |
||
640 | app_esp dd 0x0 |
||
641 | app_i_param dd 0x0 |
||
642 | app_i_icon dd 0x0 |
||
643 | app_mem_pos dd 0x0 |
||
5 | halyavin | 644 | appl_path dd 0x0 |
645 | appl_path_size dd 0x0 |
||
1 | ha | 646 | endg |
647 | |||
648 | iglobal |
||
649 | hd_app_string db 'HDAPP ' |
||
650 | process_loading db 'K : Process - loading ',13,10,0 |
||
651 | process_running db 'K : Process - done',13,10,0 |
||
652 | first_gdt_search dd 0x2 |
||
653 | endg |
||
654 | |||
655 | |||
656 | sys_threads: |
||
657 | |||
658 | ; eax=1 create thread |
||
659 | ; |
||
660 | ; ebx=thread start |
||
661 | ; ecx=thread stack value |
||
662 | ; |
||
663 | ; on return : eax = pid |
||
664 | jmp new_sys_threads |
||
665 | |||
666 | iglobal |
||
667 | process_terminating db 'K : Process - terminating',13,10,0 |
||
668 | process_terminated db 'K : Process - done',13,10,0 |
||
669 | endg |
||
670 | |||
671 | |||
672 | terminate: ; terminate application |
||
673 | push esi |
||
674 | mov esi,process_terminating |
||
675 | call sys_msg_board_str |
||
676 | pop esi |
||
677 | |||
40 | halyavin | 678 | @@: |
1 | ha | 679 | cli |
680 | cmp [application_table_status],0 |
||
681 | je term9 |
||
682 | sti |
||
683 | call change_task |
||
40 | halyavin | 684 | jmp @b |
1 | ha | 685 | term9: |
686 | |||
687 | call set_application_table_status |
||
688 | |||
689 | mov eax,esi |
||
690 | call dispose_app_cr3_table |
||
691 | |||
692 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
693 | jne fpu_ok_1 |
||
694 | mov [prev_user_of_fpu],1 |
||
695 | fpu_ok_1: |
||
696 | |||
697 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
698 | mov [0xf500],byte 0 ; empty button buffer |
||
699 | |||
700 | |||
701 | mov ecx,esi ; remove buttons |
||
702 | bnewba2: |
||
703 | mov edi,[0xfe88] |
||
704 | mov eax,edi |
||
705 | cld |
||
706 | movzx ebx,word [edi] |
||
707 | inc bx |
||
708 | bnewba: |
||
709 | dec bx |
||
710 | jz bnmba |
||
711 | add eax,0x10 |
||
712 | cmp cx,[eax] |
||
713 | jnz bnewba |
||
714 | pusha |
||
715 | mov ecx,ebx |
||
716 | inc ecx |
||
717 | shl ecx,4 |
||
718 | mov ebx,eax |
||
719 | add eax,0x10 |
||
720 | call memmove |
||
721 | dec dword [edi] |
||
722 | popa |
||
723 | jmp bnewba2 |
||
724 | bnmba: |
||
725 | |||
726 | pusha ; save window coordinates for window restoring |
||
727 | cld |
||
728 | shl esi,5 |
||
729 | add esi,window_data |
||
730 | mov ax,[esi+0] |
||
731 | mov word [dlx],ax |
||
732 | mov bx,[esi+8] |
||
733 | add ax,bx |
||
734 | mov word [dlxe],ax |
||
735 | mov ax,[esi+4] |
||
736 | mov word [dly],ax |
||
737 | mov bx,[esi+12] |
||
738 | add ax,bx |
||
739 | mov word [dlye],ax |
||
740 | mov [esi+0],word 0 |
||
741 | mov [esi+8],word 5 |
||
742 | mov ax,[0xFE04] |
||
743 | mov [esi+4],ax |
||
744 | mov [esi+12],word 5 |
||
745 | xor eax, eax |
||
746 | mov [esi+16],eax;dword 0 |
||
747 | mov [esi+20],eax;dword 0 |
||
748 | mov [esi+24],eax;dword 0 |
||
749 | mov [esi+28],eax;dword 0 |
||
750 | popa |
||
751 | |||
752 | pusha |
||
753 | mov edi,esi |
||
754 | shl edi,5 |
||
755 | add edi,window_data |
||
756 | mov ecx,32/4 |
||
757 | xor eax, eax |
||
758 | ; cld |
||
759 | rep stosd |
||
760 | |||
761 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
762 | add eax,2 |
||
763 | |||
764 | mov edi,esi |
||
765 | shl edi,5 |
||
766 | add edi,window_data |
||
767 | mov [edi+4],eax |
||
768 | |||
769 | popa |
||
770 | |||
771 | pusha |
||
772 | mov edi,esi |
||
773 | shl edi,5 |
||
774 | add edi,draw_data |
||
775 | mov ecx,32/4 |
||
776 | xor eax, eax |
||
777 | ; cld |
||
778 | rep stosd |
||
779 | popa |
||
780 | |||
40 | halyavin | 781 | ; debuggee test |
782 | pushad |
||
783 | mov edi, esi |
||
784 | shl edi, 5 |
||
785 | mov eax, [0x80000+edi*8+0xAC] |
||
786 | test eax, eax |
||
787 | jz .nodebug |
||
788 | push 8 |
||
789 | pop ecx |
||
790 | push dword [0x3000+edi+0x4] ; PID |
||
791 | push 2 |
||
792 | call debugger_notify |
||
793 | pop ecx |
||
794 | pop ecx |
||
795 | .nodebug: |
||
796 | popad |
||
797 | |||
1 | ha | 798 | pusha ; at 0x80000+ |
799 | mov edi,esi |
||
800 | shl edi,8 |
||
801 | add edi,0x80000 |
||
802 | mov ecx,256/4 |
||
803 | xor eax, eax |
||
804 | ; cld |
||
805 | rep stosd |
||
806 | popa |
||
807 | |||
808 | pusha ; name to spaces |
||
809 | mov edi,esi |
||
810 | shl edi,8 |
||
811 | add edi,0x80000 |
||
812 | mov ecx,11 |
||
813 | mov eax,' ' |
||
814 | ; cld |
||
815 | rep stosb |
||
816 | popa |
||
817 | |||
818 | pusha ; C000 --> C400 |
||
819 | mov eax, 0xc000 |
||
820 | mov esi, 0 |
||
821 | nlc40: |
||
822 | add eax, 2 |
||
823 | inc esi |
||
824 | cmp esi, [0x3004] |
||
825 | jae nlc41 |
||
826 | movzx ecx, word [eax] |
||
827 | mov [0xC400 + ecx*2], si |
||
828 | jmp nlc40 |
||
829 | nlc41: |
||
830 | popa |
||
831 | |||
832 | pusha ; remove hd1 reservation |
||
833 | mov edx,esi |
||
834 | shl edx, 5 ;imul edx,0x20 |
||
835 | add edx,0x3000 |
||
836 | mov edx,[edx+4] |
||
837 | cmp [hd1_status],edx |
||
838 | jne no_hd1_s_remove |
||
839 | mov [hd1_status],0 |
||
840 | no_hd1_s_remove: |
||
841 | popa |
||
842 | |||
843 | pusha ; remove all irq reservations |
||
844 | mov edx,esi |
||
845 | shl edx, 5 ;imul edx,0x20 |
||
846 | add edx,0x3000 |
||
847 | mov edx,[edx+4] |
||
848 | mov edi,irq_owner |
||
849 | mov ecx,16 |
||
850 | newirqfree: |
||
851 | cmp [edi],edx |
||
852 | jne nofreeirq |
||
853 | mov [edi],dword 0 |
||
854 | nofreeirq: |
||
855 | add edi,4 |
||
856 | loop newirqfree |
||
857 | popa |
||
858 | |||
859 | |||
860 | pusha ; remove all port reservations |
||
33 | mario79 | 861 | mov [deleted_process],esi |
1 | ha | 862 | mov edx,esi |
863 | shl edx, 5 ;imul edx,0x20 |
||
864 | add edx,0x3000 |
||
865 | mov edx,[edx+4] |
||
866 | |||
867 | rmpr0: |
||
868 | |||
869 | mov esi,[0x2d0000] |
||
870 | |||
871 | cmp esi,0 |
||
872 | je rmpr9 |
||
873 | |||
874 | rmpr3: |
||
875 | |||
876 | mov edi,esi |
||
877 | shl edi,4 |
||
878 | add edi,0x2d0000 |
||
879 | |||
880 | cmp edx,[edi] |
||
881 | je rmpr4 |
||
882 | |||
883 | dec esi |
||
884 | jnz rmpr3 |
||
885 | |||
886 | jmp rmpr9 |
||
887 | |||
888 | rmpr4: |
||
889 | |||
890 | mov ecx,256 |
||
891 | sub ecx,esi |
||
892 | shl ecx,4 |
||
893 | |||
894 | mov esi,edi |
||
895 | add esi,16 |
||
896 | cld |
||
897 | rep movsb |
||
898 | |||
899 | dec dword [0x2d0000] |
||
900 | |||
901 | jmp rmpr0 |
||
902 | |||
903 | rmpr9: |
||
904 | |||
905 | popa |
||
906 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 907 | shl edi, 5 |
1 | ha | 908 | mov [edi+0x300A],byte 9 |
40 | halyavin | 909 | ; debugger test - terminate all debuggees |
910 | mov eax, 2 |
||
911 | mov ecx, 0x80000+2*0x100+0xAC |
||
912 | .xd0: |
||
913 | cmp eax, [0x3004] |
||
914 | ja .xd1 |
||
915 | cmp dword [ecx], esi |
||
916 | jnz @f |
||
917 | and dword [ecx], 0 |
||
918 | pushad |
||
919 | xchg eax, ebx |
||
920 | mov eax, 2 |
||
921 | call sys_system |
||
922 | popad |
||
923 | @@: |
||
924 | inc eax |
||
925 | add ecx, 0x100 |
||
926 | jmp .xd0 |
||
927 | .xd1: |
||
1 | ha | 928 | ; call systest |
929 | sti ; .. and life goes on |
||
930 | |||
931 | ; movzx eax,word [dlx] |
||
932 | ; movzx ebx,word [dly] |
||
933 | ; movzx ecx,word [dlxe] |
||
934 | ; movzx edx,word [dlye] |
||
935 | call calculatescreen |
||
33 | mario79 | 936 | cli |
937 | mov eax,[deleted_process] |
||
938 | cmp eax,[active_process] |
||
939 | jne no_activate_process |
||
940 | call read_active_process_stack |
||
941 | no_activate_process: |
||
942 | sti |
||
1 | ha | 943 | xor eax, eax |
944 | xor esi, esi |
||
945 | call redrawscreen |
||
946 | |||
947 | mov [0xfff4],byte 0 ; no mouse background |
||
948 | mov [0xfff5],byte 0 ; draw mouse |
||
949 | |||
950 | mov [application_table_status],0 |
||
951 | mov esi,process_terminated |
||
952 | call sys_msg_board_str |
||
33 | mario79 | 953 | ret |
1 | ha | 954 | |
33 | mario79 | 955 | save_active_process_stack: |
956 | cmp [active_proc_stack_coun],0xa400+0x400-4 |
||
957 | jne @f |
||
958 | mov [active_proc_stack_coun],0xa400-4 |
||
959 | @@: |
||
960 | push eax |
||
961 | push ebx |
||
962 | mov eax,[active_process] |
||
963 | shl eax,5 |
||
964 | add eax,0x3000 |
||
965 | mov [eax-twdw+31],byte 1 |
||
966 | add [active_proc_stack_coun],4 |
||
967 | mov eax,[active_process] |
||
968 | mov ebx,[active_proc_stack_coun] |
||
969 | mov [ebx],eax |
||
970 | pop ebx |
||
971 | pop eax |
||
1 | ha | 972 | ret |
973 | |||
33 | mario79 | 974 | read_active_process_stack: |
975 | cmp [active_proc_stack_coun],0xa400-4 |
||
976 | jne @f |
||
977 | mov [active_proc_stack_coun],0xa400+0x400-4 |
||
978 | @@: |
||
979 | push eax |
||
980 | push ebx |
||
981 | mov ebx,[active_proc_stack_coun] |
||
982 | mov eax,[ebx] |
||
983 | mov [0xff01],eax ; activate |
||
984 | sub [active_proc_stack_coun],4 |
||
985 | mov [active_process_flag],1 |
||
986 | pop ebx |
||
987 | pop eax |
||
988 | ret |
||
989 | |||
1 | ha | 990 | iglobal |
991 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
8 | poddubny | 992 | boot_sched_2 db 'Building IDT table',0 |
1 | ha | 993 | endg |
994 | |||
995 | |||
996 | build_scheduler: |
||
997 | |||
998 | mov esi,boot_sched_1 |
||
999 | call boot_log |
||
1000 | call build_process_gdt_tss_pointer |
||
1001 | |||
8 | poddubny | 1002 | mov esi,boot_sched_2 |
1 | ha | 1003 | call boot_log |
1004 | call build_interrupt_table |
||
1005 | |||
1006 | ret |
||
1007 |