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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 | |||
8 | poddubny | 167 | ; simply return control to interrupted process |
168 | unknown_interrupt: |
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169 | iret |
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1 | ha | 170 | |
22 | poddubny | 171 | macro exc_wo_code [num] |
8 | poddubny | 172 | { |
173 | forward |
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174 | e#num : |
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20 | mario79 | 175 | mov bl, num |
176 | jmp exc_c |
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8 | poddubny | 177 | } |
1 | ha | 178 | |
22 | poddubny | 179 | macro exc_w_code [num] |
180 | { |
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181 | forward |
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182 | e#num : |
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183 | add esp, 4 |
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184 | mov bl, num |
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185 | jmp exc_c |
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186 | } |
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187 | |||
188 | exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 16 ; 18, 19 |
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189 | exc_w_code 8, 10, 11, 12, 13, 14, 17 |
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190 | |||
8 | poddubny | 191 | exc_c: |
6 | poddubny | 192 | mov ax, os_data |
193 | mov ds, ax |
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194 | mov es, ax |
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1 | ha | 195 | |
8 | poddubny | 196 | movzx eax, bl |
197 | mov [error_interrupt], eax |
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1 | ha | 198 | call show_error_parameters |
8 | poddubny | 199 | |
200 | mov edx, [0x3010] |
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201 | mov [edx + 0xA], byte 4 |
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202 | |||
1 | ha | 203 | jmp change_task |
204 | |||
205 | |||
206 | ;;;;;;;;;;;;;;;;;;;;;;; |
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207 | ;; FPU ERROR HANDLER ;; |
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208 | ;;;;;;;;;;;;;;;;;;;;;;; |
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209 | |||
210 | align 4 |
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8 | poddubny | 211 | e7: |
6 | poddubny | 212 | clts |
213 | |||
214 | push eax |
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215 | push ds es |
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216 | |||
217 | mov ax, os_data |
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218 | mov ds, ax |
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219 | mov es, ax |
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220 | |||
221 | mov eax, [prev_user_of_fpu] |
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222 | shl eax, 8 |
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223 | add eax, 0x80000 + 0x10 |
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224 | fsave [eax] |
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225 | |||
226 | mov eax, [0x3000] |
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227 | mov [prev_user_of_fpu], eax |
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228 | shl eax, 8 |
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229 | add eax, 0x80000 |
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230 | cmp [eax + 0x7f], byte 0 |
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231 | je @f |
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232 | frstor [eax+0x10] |
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233 | @@: |
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234 | mov [eax + 0x7f], byte 1 |
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235 | |||
236 | pop es ds |
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237 | pop eax |
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238 | |||
239 | iret |
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240 | |||
241 | iglobal |
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242 | prev_user_of_fpu dd 1 |
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243 | endg |
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1 | ha | 244 | |
245 | |||
246 | writehex: |
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247 | pusha |
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8 | poddubny | 248 | |
249 | mov edi, [write_error_to] |
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250 | mov esi, 8 |
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251 | @@: |
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252 | mov ecx, eax |
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253 | and ecx, 0xf |
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1 | ha | 254 | |
8 | poddubny | 255 | mov cl,[ecx+hexletters] |
1 | ha | 256 | mov [edi],cl |
8 | poddubny | 257 | dec edi |
1 | ha | 258 | |
8 | poddubny | 259 | shr eax,4 |
1 | ha | 260 | dec esi |
8 | poddubny | 261 | jnz @b |
1 | ha | 262 | |
263 | popa |
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264 | ret |
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265 | |||
266 | iglobal |
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267 | hexletters db '0123456789ABCDEF' |
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268 | |||
269 | error_interrupt dd -1 |
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270 | |||
271 | process_error db 'K : Process - forced terminate INT: 00000000',13,10,0 |
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272 | process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0 |
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273 | process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0 |
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274 | system_error db 'K : Kernel error',13,10,0 |
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275 | endg |
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276 | |||
277 | uglobal |
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278 | write_error_to dd 0x0 |
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279 | endg |
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280 | |||
281 | show_error_parameters: |
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282 | |||
283 | mov [write_error_to],process_pid+43 |
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284 | mov eax,[0x3000] |
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285 | shl eax, 5 |
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286 | mov eax,[0x3000+4+eax] |
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287 | call writehex |
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288 | |||
289 | mov [write_error_to],process_error+43 |
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290 | mov eax,[error_interrupt] |
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291 | call writehex |
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16 | poddubny | 292 | |
293 | cmp dword [esp+4+4], os_code ; CS |
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294 | jnz @f |
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10 | poddubny | 295 | mov esi,system_error |
296 | call sys_msg_board_str |
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297 | @@: |
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16 | poddubny | 298 | mov eax, [esp+4] ; EIP |
10 | poddubny | 299 | |
1 | ha | 300 | mov [write_error_to],process_eip+43 |
301 | call writehex |
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302 | |||
303 | mov esi,process_error |
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304 | call sys_msg_board_str |
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305 | |||
306 | mov esi,process_pid |
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307 | call sys_msg_board_str |
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308 | |||
309 | mov esi,process_eip |
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310 | call sys_msg_board_str |
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311 | |||
312 | ret |
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313 | |||
314 | |||
315 | |||
6 | poddubny | 316 | ; irq1 -> hid/keyboard.inc |
1 | ha | 317 | |
318 | |||
10 | poddubny | 319 | macro irqh [num] |
8 | poddubny | 320 | { |
321 | forward |
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322 | p_irq#num : |
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323 | pushad |
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324 | mov edi, num |
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325 | jmp irq_c |
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326 | } |
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1 | ha | 327 | |
11 | poddubny | 328 | irqh 2,3,4,5,7,8,9,10,11,12,14,15 |
1 | ha | 329 | |
8 | poddubny | 330 | irq_c: |
331 | push ds es |
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332 | mov ax, os_data |
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333 | mov ds, ax |
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334 | mov es, ax |
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1 | ha | 335 | call irqhandler |
8 | poddubny | 336 | pop es ds |
337 | popad |
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338 | iret |
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11 | poddubny | 339 | |
340 | p_irq6: |
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341 | pushad |
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342 | push ds es |
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343 | mov ax, os_data |
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344 | mov ds, ax |
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345 | mov es, ax |
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346 | call fdc_irq |
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15 | poddubny | 347 | |
22 | poddubny | 348 | ;mov edi,6 |
349 | ;call irqhandler |
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350 | mov al, 0x20 |
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351 | out 0x20, al |
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15 | poddubny | 352 | |
11 | poddubny | 353 | pop es ds |
354 | popad |
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355 | iret |
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356 | |||
6 | poddubny | 357 | irqD: |
8 | poddubny | 358 | pushad |
359 | push ds es |
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360 | mov ax, os_data |
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361 | mov ds, ax |
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362 | mov es, ax |
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363 | |||
6 | poddubny | 364 | mov dx,0xf0 |
365 | mov al,0 |
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366 | out dx,al |
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1 | ha | 367 | |
6 | poddubny | 368 | mov dx,0xa0 |
369 | mov al,0x20 |
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370 | out dx,al |
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371 | mov dx,0x20 |
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8 | poddubny | 372 | out dx,al |
6 | poddubny | 373 | |
8 | poddubny | 374 | pop es ds |
375 | popad |
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376 | iret |
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1 | ha | 377 | |
378 | |||
379 | irqhandler: |
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380 | |||
381 | push edi |
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382 | |||
383 | mov esi,edi ; 1 |
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384 | shl esi,6 ; 1 |
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385 | add esi,irq00read ; 1 |
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386 | shl edi,12 ; 1 |
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387 | add edi,0x2E0000 |
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388 | |||
389 | mov [check_idle_semaphore],5 |
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390 | |||
391 | irqnewread: |
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392 | |||
393 | mov dx,[esi] ; 2+ |
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394 | |||
395 | cmp dx,0 ; 1 |
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396 | jz irqover |
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397 | cmp [esi+3],byte 1 ; 2 ; byte read |
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398 | jne noirqbyte ; 4-11 |
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399 | |||
400 | in al,dx |
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401 | |||
402 | mov edx,[edi] |
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403 | cmp edx,4000 |
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404 | je irqfull |
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405 | mov ebx,edi |
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406 | add ebx,0x10 |
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407 | add ebx,edx |
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408 | mov [ebx],al |
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409 | inc edx |
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410 | mov [edi],edx |
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411 | |||
412 | add esi,4 |
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413 | jmp irqnewread |
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414 | |||
415 | noirqbyte: |
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416 | |||
417 | |||
418 | cmp [esi+3],byte 2 ; word read |
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419 | jne noirqword |
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420 | |||
421 | in ax,dx |
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422 | |||
423 | mov edx,[edi] |
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424 | cmp edx,4000 |
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425 | je irqfull |
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426 | mov ebx,edi |
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427 | add ebx,0x10 |
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428 | add ebx,edx |
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429 | mov [ebx],ax |
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430 | add edx,2 |
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431 | mov [edi],edx |
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432 | add esi,4 |
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433 | jmp irqnewread |
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434 | |||
435 | noirqword: |
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436 | irqfull: |
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437 | irqover: |
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438 | |||
439 | mov al,0x20 ; ready for next irq |
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440 | out 0x20,al |
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441 | |||
442 | pop ebx |
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443 | cmp ebx,7 |
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444 | jbe noa0 |
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445 | out 0xa0,al |
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446 | noa0: |
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447 | |||
448 | ret |
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449 | |||
450 | |||
451 | |||
452 | set_application_table_status: |
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453 | push eax |
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454 | |||
455 | mov eax,[0x3000] |
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456 | shl eax, 5 |
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457 | add eax,0x3000+4 |
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458 | mov eax,[eax] |
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459 | |||
460 | mov [application_table_status],eax |
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461 | |||
462 | pop eax |
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463 | |||
464 | ret |
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465 | |||
466 | |||
467 | clear_application_table_status: |
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468 | push eax |
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469 | |||
470 | mov eax,[0x3000] |
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471 | shl eax, 5 |
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472 | add eax,0x3000+4 |
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473 | mov eax,[eax] |
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474 | |||
475 | cmp eax,[application_table_status] |
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476 | jne apptsl1 |
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477 | mov [application_table_status],0 |
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478 | apptsl1: |
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479 | |||
480 | pop eax |
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481 | |||
482 | ret |
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483 | |||
484 | |||
485 | |||
486 | sys_resize_app_memory: |
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487 | ; eax = 1 - resize |
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488 | ; ebx = new amount of memory |
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489 | |||
490 | cmp eax,1 |
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4 | poddubny | 491 | jne .no_application_mem_resize |
1 | ha | 492 | |
4 | poddubny | 493 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 494 | |
495 | |||
4 | poddubny | 496 | .no_application_mem_resize: |
1 | ha | 497 | |
498 | ret |
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499 | |||
500 | |||
501 | |||
502 | get_app_params: |
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503 | |||
504 | push eax |
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505 | |||
506 | cmp [0x90000+6],word '00' |
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507 | jne no_00_header |
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508 | |||
509 | mov eax,[0x90000+12] |
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510 | mov [app_start],eax |
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511 | mov eax,[0x90000+16] |
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512 | mov [app_i_end],eax |
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513 | mov eax,[0x90000+20] |
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514 | mov [app_mem],eax |
||
515 | shr eax,1 |
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516 | sub eax,0x10 |
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517 | mov [app_esp],eax |
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518 | mov eax,[0x90000+24] |
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519 | mov [app_i_param],eax |
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520 | mov [app_i_icon],dword 0 |
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521 | |||
522 | pop eax |
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523 | mov esi,1 |
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524 | ret |
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525 | |||
526 | no_00_header: |
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527 | |||
528 | |||
529 | cmp [0x90000+6],word '01' |
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530 | jne no_01_header |
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531 | |||
532 | mov eax,[0x90000+12] |
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533 | mov [app_start],eax |
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534 | mov eax,[0x90000+16] |
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535 | mov [app_i_end],eax |
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536 | mov eax,[0x90000+20] |
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537 | mov [app_mem],eax |
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538 | mov eax,[0x90000+24] |
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539 | mov [app_esp],eax |
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540 | mov eax,[0x90000+28] |
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541 | mov [app_i_param],eax |
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542 | mov eax,[0x90000+32] |
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543 | mov [app_i_icon],eax |
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544 | |||
545 | pop eax |
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546 | mov esi,1 |
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547 | ret |
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548 | |||
549 | no_01_header: |
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550 | |||
551 | pop eax |
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552 | mov esi,0 |
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553 | ret |
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554 | |||
555 | |||
556 | start_application_fl: |
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557 | jmp new_start_application_fl |
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558 | |||
559 | ;************************************************************************ |
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560 | |||
561 | start_application_floppy: |
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562 | jmp new_start_application_floppy |
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563 | |||
564 | ;******************************************************************** |
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565 | |||
566 | start_application_hd: |
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567 | jmp new_start_application_hd |
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568 | |||
569 | uglobal |
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570 | new_process_place dd 0x0 |
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571 | app_start dd 0x0 |
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572 | app_i_end dd 0x0 |
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573 | app_mem dd 0x0 |
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574 | app_esp dd 0x0 |
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575 | app_i_param dd 0x0 |
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576 | app_i_icon dd 0x0 |
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577 | app_mem_pos dd 0x0 |
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5 | halyavin | 578 | appl_path dd 0x0 |
579 | appl_path_size dd 0x0 |
||
1 | ha | 580 | endg |
581 | |||
582 | iglobal |
||
583 | hd_app_string db 'HDAPP ' |
||
584 | process_loading db 'K : Process - loading ',13,10,0 |
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585 | process_running db 'K : Process - done',13,10,0 |
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586 | first_gdt_search dd 0x2 |
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587 | endg |
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588 | |||
589 | |||
590 | sys_threads: |
||
591 | |||
592 | ; eax=1 create thread |
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593 | ; |
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594 | ; ebx=thread start |
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595 | ; ecx=thread stack value |
||
596 | ; |
||
597 | ; on return : eax = pid |
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598 | jmp new_sys_threads |
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599 | |||
600 | iglobal |
||
601 | process_terminating db 'K : Process - terminating',13,10,0 |
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602 | process_terminated db 'K : Process - done',13,10,0 |
||
603 | endg |
||
604 | |||
605 | |||
606 | terminate: ; terminate application |
||
607 | push esi |
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608 | mov esi,process_terminating |
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609 | call sys_msg_board_str |
||
610 | pop esi |
||
611 | |||
612 | cli |
||
613 | cmp [application_table_status],0 |
||
614 | je term9 |
||
615 | sti |
||
616 | call change_task |
||
617 | jmp terminate |
||
618 | term9: |
||
619 | |||
620 | call set_application_table_status |
||
621 | |||
622 | mov eax,esi |
||
623 | call dispose_app_cr3_table |
||
624 | |||
625 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
626 | jne fpu_ok_1 |
||
627 | mov [prev_user_of_fpu],1 |
||
628 | fpu_ok_1: |
||
629 | |||
630 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
631 | mov [0xf500],byte 0 ; empty button buffer |
||
632 | |||
633 | |||
634 | mov ecx,esi ; remove buttons |
||
635 | bnewba2: |
||
636 | mov edi,[0xfe88] |
||
637 | mov eax,edi |
||
638 | cld |
||
639 | movzx ebx,word [edi] |
||
640 | inc bx |
||
641 | bnewba: |
||
642 | dec bx |
||
643 | jz bnmba |
||
644 | add eax,0x10 |
||
645 | cmp cx,[eax] |
||
646 | jnz bnewba |
||
647 | pusha |
||
648 | mov ecx,ebx |
||
649 | inc ecx |
||
650 | shl ecx,4 |
||
651 | mov ebx,eax |
||
652 | add eax,0x10 |
||
653 | call memmove |
||
654 | dec dword [edi] |
||
655 | popa |
||
656 | jmp bnewba2 |
||
657 | bnmba: |
||
658 | |||
659 | pusha ; save window coordinates for window restoring |
||
660 | cld |
||
661 | shl esi,5 |
||
662 | add esi,window_data |
||
663 | mov ax,[esi+0] |
||
664 | mov word [dlx],ax |
||
665 | mov bx,[esi+8] |
||
666 | add ax,bx |
||
667 | mov word [dlxe],ax |
||
668 | mov ax,[esi+4] |
||
669 | mov word [dly],ax |
||
670 | mov bx,[esi+12] |
||
671 | add ax,bx |
||
672 | mov word [dlye],ax |
||
673 | mov [esi+0],word 0 |
||
674 | mov [esi+8],word 5 |
||
675 | mov ax,[0xFE04] |
||
676 | mov [esi+4],ax |
||
677 | mov [esi+12],word 5 |
||
678 | xor eax, eax |
||
679 | mov [esi+16],eax;dword 0 |
||
680 | mov [esi+20],eax;dword 0 |
||
681 | mov [esi+24],eax;dword 0 |
||
682 | mov [esi+28],eax;dword 0 |
||
683 | popa |
||
684 | |||
685 | pusha |
||
686 | mov edi,esi |
||
687 | shl edi,5 |
||
688 | add edi,window_data |
||
689 | mov ecx,32/4 |
||
690 | xor eax, eax |
||
691 | ; cld |
||
692 | rep stosd |
||
693 | |||
694 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
695 | add eax,2 |
||
696 | |||
697 | mov edi,esi |
||
698 | shl edi,5 |
||
699 | add edi,window_data |
||
700 | mov [edi+4],eax |
||
701 | |||
702 | popa |
||
703 | |||
704 | pusha |
||
705 | mov edi,esi |
||
706 | shl edi,5 |
||
707 | add edi,draw_data |
||
708 | mov ecx,32/4 |
||
709 | xor eax, eax |
||
710 | ; cld |
||
711 | rep stosd |
||
712 | popa |
||
713 | |||
714 | pusha ; at 0x80000+ |
||
715 | mov edi,esi |
||
716 | shl edi,8 |
||
717 | add edi,0x80000 |
||
718 | mov ecx,256/4 |
||
719 | xor eax, eax |
||
720 | ; cld |
||
721 | rep stosd |
||
722 | popa |
||
723 | |||
724 | pusha ; name to spaces |
||
725 | mov edi,esi |
||
726 | shl edi,8 |
||
727 | add edi,0x80000 |
||
728 | mov ecx,11 |
||
729 | mov eax,' ' |
||
730 | ; cld |
||
731 | rep stosb |
||
732 | popa |
||
733 | |||
734 | pusha ; C000 --> C400 |
||
735 | mov eax, 0xc000 |
||
736 | mov esi, 0 |
||
737 | nlc40: |
||
738 | add eax, 2 |
||
739 | inc esi |
||
740 | cmp esi, [0x3004] |
||
741 | jae nlc41 |
||
742 | movzx ecx, word [eax] |
||
743 | mov [0xC400 + ecx*2], si |
||
744 | jmp nlc40 |
||
745 | nlc41: |
||
746 | popa |
||
747 | |||
748 | pusha ; remove hd1 reservation |
||
749 | mov edx,esi |
||
750 | shl edx, 5 ;imul edx,0x20 |
||
751 | add edx,0x3000 |
||
752 | mov edx,[edx+4] |
||
753 | cmp [hd1_status],edx |
||
754 | jne no_hd1_s_remove |
||
755 | mov [hd1_status],0 |
||
756 | no_hd1_s_remove: |
||
757 | popa |
||
758 | |||
759 | pusha ; remove all irq reservations |
||
760 | mov edx,esi |
||
761 | shl edx, 5 ;imul edx,0x20 |
||
762 | add edx,0x3000 |
||
763 | mov edx,[edx+4] |
||
764 | mov edi,irq_owner |
||
765 | mov ecx,16 |
||
766 | newirqfree: |
||
767 | cmp [edi],edx |
||
768 | jne nofreeirq |
||
769 | mov [edi],dword 0 |
||
770 | nofreeirq: |
||
771 | add edi,4 |
||
772 | loop newirqfree |
||
773 | popa |
||
774 | |||
775 | |||
776 | pusha ; remove all port reservations |
||
777 | |||
778 | mov edx,esi |
||
779 | shl edx, 5 ;imul edx,0x20 |
||
780 | add edx,0x3000 |
||
781 | mov edx,[edx+4] |
||
782 | |||
783 | rmpr0: |
||
784 | |||
785 | mov esi,[0x2d0000] |
||
786 | |||
787 | cmp esi,0 |
||
788 | je rmpr9 |
||
789 | |||
790 | rmpr3: |
||
791 | |||
792 | mov edi,esi |
||
793 | shl edi,4 |
||
794 | add edi,0x2d0000 |
||
795 | |||
796 | cmp edx,[edi] |
||
797 | je rmpr4 |
||
798 | |||
799 | dec esi |
||
800 | jnz rmpr3 |
||
801 | |||
802 | jmp rmpr9 |
||
803 | |||
804 | rmpr4: |
||
805 | |||
806 | mov ecx,256 |
||
807 | sub ecx,esi |
||
808 | shl ecx,4 |
||
809 | |||
810 | mov esi,edi |
||
811 | add esi,16 |
||
812 | cld |
||
813 | rep movsb |
||
814 | |||
815 | dec dword [0x2d0000] |
||
816 | |||
817 | jmp rmpr0 |
||
818 | |||
819 | rmpr9: |
||
820 | |||
821 | popa |
||
822 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 823 | shl edi, 5 |
1 | ha | 824 | mov [edi+0x300A],byte 9 |
825 | ; call systest |
||
826 | sti ; .. and life goes on |
||
827 | |||
828 | ; movzx eax,word [dlx] |
||
829 | ; movzx ebx,word [dly] |
||
830 | ; movzx ecx,word [dlxe] |
||
831 | ; movzx edx,word [dlye] |
||
832 | call calculatescreen |
||
833 | |||
834 | xor eax, eax |
||
835 | xor esi, esi |
||
836 | call redrawscreen |
||
837 | |||
838 | mov [0xfff4],byte 0 ; no mouse background |
||
839 | mov [0xfff5],byte 0 ; draw mouse |
||
840 | |||
841 | mov [application_table_status],0 |
||
842 | |||
843 | mov esi,process_terminated |
||
844 | call sys_msg_board_str |
||
845 | |||
846 | ;* start code - fix error redraw for terminate (2) - Mario79 |
||
847 | ; cmp [draw_present],1 |
||
848 | ; je no_draw_background_temp |
||
849 | ; mov [0xfff0],byte 1 |
||
850 | ;no_draw_background_temp: |
||
851 | ; mov [draw_present],0 |
||
852 | ret |
||
853 | ;draw_present db 0 |
||
854 | ;* end code - fix error redraw for terminate (2) - Mario79 |
||
855 | |||
856 | iglobal |
||
857 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
8 | poddubny | 858 | boot_sched_2 db 'Building IDT table',0 |
1 | ha | 859 | endg |
860 | |||
861 | |||
862 | build_scheduler: |
||
863 | |||
864 | mov esi,boot_sched_1 |
||
865 | call boot_log |
||
866 | call build_process_gdt_tss_pointer |
||
867 | |||
8 | poddubny | 868 | mov esi,boot_sched_2 |
1 | ha | 869 | call boot_log |
870 | call build_interrupt_table |
||
871 | |||
872 | ret |
||
873 |