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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 | |
33 | mario79 | 328 | irqh 2,5,7,8,9,10,11,14,15 |
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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33 | mario79 | 347 | call ready_for_next_irq |
348 | pop es ds |
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349 | popad |
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350 | iret |
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15 | poddubny | 351 | |
33 | mario79 | 352 | p_irq3: |
353 | pushad |
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354 | push ds es |
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355 | mov ax, os_data |
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356 | mov ds, ax |
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357 | mov es, ax |
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358 | call check_mouse_data_com2 |
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359 | pop es ds |
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360 | popad |
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361 | iret |
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15 | poddubny | 362 | |
33 | mario79 | 363 | p_irq4: |
364 | pushad |
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365 | push ds es |
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366 | mov ax, os_data |
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367 | mov ds, ax |
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368 | mov es, ax |
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369 | call check_mouse_data_com1 |
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11 | poddubny | 370 | pop es ds |
371 | popad |
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372 | iret |
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373 | |||
33 | mario79 | 374 | p_irq12: |
375 | pushad |
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376 | push ds es |
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377 | mov ax, os_data |
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378 | mov ds, ax |
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379 | mov es, ax |
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380 | call check_mouse_data_ps2 |
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381 | pop es ds |
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382 | popad |
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383 | iret |
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384 | |||
385 | ready_for_next_irq: |
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386 | mov [check_idle_semaphore],5 |
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387 | mov al, 0x20 |
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388 | out 0x20, al |
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389 | ret |
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390 | |||
391 | ready_for_next_irq_1: |
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392 | mov [check_idle_semaphore],5 |
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393 | mov al, 0x20 |
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394 | out 0xa0,al |
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395 | out 0x20, al |
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396 | ret |
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397 | |||
6 | poddubny | 398 | irqD: |
8 | poddubny | 399 | pushad |
400 | push ds es |
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401 | mov ax, os_data |
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402 | mov ds, ax |
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403 | mov es, ax |
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404 | |||
6 | poddubny | 405 | mov dx,0xf0 |
406 | mov al,0 |
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407 | out dx,al |
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1 | ha | 408 | |
6 | poddubny | 409 | mov dx,0xa0 |
410 | mov al,0x20 |
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411 | out dx,al |
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412 | mov dx,0x20 |
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8 | poddubny | 413 | out dx,al |
6 | poddubny | 414 | |
8 | poddubny | 415 | pop es ds |
416 | popad |
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417 | iret |
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1 | ha | 418 | |
419 | |||
420 | irqhandler: |
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421 | |||
422 | push edi |
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423 | |||
424 | mov esi,edi ; 1 |
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425 | shl esi,6 ; 1 |
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426 | add esi,irq00read ; 1 |
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427 | shl edi,12 ; 1 |
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428 | add edi,0x2E0000 |
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429 | |||
430 | mov [check_idle_semaphore],5 |
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431 | |||
432 | irqnewread: |
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433 | |||
434 | mov dx,[esi] ; 2+ |
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435 | |||
436 | cmp dx,0 ; 1 |
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437 | jz irqover |
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438 | cmp [esi+3],byte 1 ; 2 ; byte read |
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439 | jne noirqbyte ; 4-11 |
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440 | |||
441 | in al,dx |
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442 | |||
443 | mov edx,[edi] |
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444 | cmp edx,4000 |
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445 | je irqfull |
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446 | mov ebx,edi |
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447 | add ebx,0x10 |
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448 | add ebx,edx |
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449 | mov [ebx],al |
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450 | inc edx |
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451 | mov [edi],edx |
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452 | |||
453 | add esi,4 |
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454 | jmp irqnewread |
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455 | |||
456 | noirqbyte: |
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457 | |||
458 | |||
459 | cmp [esi+3],byte 2 ; word read |
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460 | jne noirqword |
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461 | |||
462 | in ax,dx |
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463 | |||
464 | mov edx,[edi] |
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465 | cmp edx,4000 |
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466 | je irqfull |
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467 | mov ebx,edi |
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468 | add ebx,0x10 |
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469 | add ebx,edx |
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470 | mov [ebx],ax |
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471 | add edx,2 |
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472 | mov [edi],edx |
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473 | add esi,4 |
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474 | jmp irqnewread |
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475 | |||
476 | noirqword: |
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477 | irqfull: |
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478 | irqover: |
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479 | |||
480 | mov al,0x20 ; ready for next irq |
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481 | out 0x20,al |
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482 | |||
483 | pop ebx |
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484 | cmp ebx,7 |
||
485 | jbe noa0 |
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486 | out 0xa0,al |
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487 | noa0: |
||
488 | |||
489 | ret |
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490 | |||
491 | |||
492 | |||
493 | set_application_table_status: |
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494 | push eax |
||
495 | |||
496 | mov eax,[0x3000] |
||
497 | shl eax, 5 |
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498 | add eax,0x3000+4 |
||
499 | mov eax,[eax] |
||
500 | |||
501 | mov [application_table_status],eax |
||
502 | |||
503 | pop eax |
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504 | |||
505 | ret |
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506 | |||
507 | |||
508 | clear_application_table_status: |
||
509 | push eax |
||
510 | |||
511 | mov eax,[0x3000] |
||
512 | shl eax, 5 |
||
513 | add eax,0x3000+4 |
||
514 | mov eax,[eax] |
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515 | |||
516 | cmp eax,[application_table_status] |
||
517 | jne apptsl1 |
||
518 | mov [application_table_status],0 |
||
519 | apptsl1: |
||
520 | |||
521 | pop eax |
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522 | |||
523 | ret |
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524 | |||
525 | |||
526 | |||
527 | sys_resize_app_memory: |
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528 | ; eax = 1 - resize |
||
529 | ; ebx = new amount of memory |
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530 | |||
531 | cmp eax,1 |
||
4 | poddubny | 532 | jne .no_application_mem_resize |
1 | ha | 533 | |
4 | poddubny | 534 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 535 | |
536 | |||
4 | poddubny | 537 | .no_application_mem_resize: |
1 | ha | 538 | |
539 | ret |
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540 | |||
541 | |||
542 | |||
543 | get_app_params: |
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544 | |||
545 | push eax |
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546 | |||
547 | cmp [0x90000+6],word '00' |
||
548 | jne no_00_header |
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549 | |||
550 | mov eax,[0x90000+12] |
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551 | mov [app_start],eax |
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552 | mov eax,[0x90000+16] |
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553 | mov [app_i_end],eax |
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554 | mov eax,[0x90000+20] |
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555 | mov [app_mem],eax |
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556 | shr eax,1 |
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557 | sub eax,0x10 |
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558 | mov [app_esp],eax |
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559 | mov eax,[0x90000+24] |
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560 | mov [app_i_param],eax |
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561 | mov [app_i_icon],dword 0 |
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562 | |||
563 | pop eax |
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564 | mov esi,1 |
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565 | ret |
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566 | |||
567 | no_00_header: |
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568 | |||
569 | |||
570 | cmp [0x90000+6],word '01' |
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571 | jne no_01_header |
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572 | |||
573 | mov eax,[0x90000+12] |
||
574 | mov [app_start],eax |
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575 | mov eax,[0x90000+16] |
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576 | mov [app_i_end],eax |
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577 | mov eax,[0x90000+20] |
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578 | mov [app_mem],eax |
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579 | mov eax,[0x90000+24] |
||
580 | mov [app_esp],eax |
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581 | mov eax,[0x90000+28] |
||
582 | mov [app_i_param],eax |
||
583 | mov eax,[0x90000+32] |
||
584 | mov [app_i_icon],eax |
||
585 | |||
586 | pop eax |
||
587 | mov esi,1 |
||
588 | ret |
||
589 | |||
590 | no_01_header: |
||
591 | |||
592 | pop eax |
||
593 | mov esi,0 |
||
594 | ret |
||
595 | |||
596 | |||
597 | start_application_fl: |
||
598 | jmp new_start_application_fl |
||
599 | |||
600 | ;************************************************************************ |
||
601 | |||
602 | start_application_floppy: |
||
603 | jmp new_start_application_floppy |
||
604 | |||
605 | ;******************************************************************** |
||
606 | |||
607 | start_application_hd: |
||
608 | jmp new_start_application_hd |
||
609 | |||
610 | uglobal |
||
611 | new_process_place dd 0x0 |
||
612 | app_start dd 0x0 |
||
613 | app_i_end dd 0x0 |
||
614 | app_mem dd 0x0 |
||
615 | app_esp dd 0x0 |
||
616 | app_i_param dd 0x0 |
||
617 | app_i_icon dd 0x0 |
||
618 | app_mem_pos dd 0x0 |
||
5 | halyavin | 619 | appl_path dd 0x0 |
620 | appl_path_size dd 0x0 |
||
1 | ha | 621 | endg |
622 | |||
623 | iglobal |
||
624 | hd_app_string db 'HDAPP ' |
||
625 | process_loading db 'K : Process - loading ',13,10,0 |
||
626 | process_running db 'K : Process - done',13,10,0 |
||
627 | first_gdt_search dd 0x2 |
||
628 | endg |
||
629 | |||
630 | |||
631 | sys_threads: |
||
632 | |||
633 | ; eax=1 create thread |
||
634 | ; |
||
635 | ; ebx=thread start |
||
636 | ; ecx=thread stack value |
||
637 | ; |
||
638 | ; on return : eax = pid |
||
639 | jmp new_sys_threads |
||
640 | |||
641 | iglobal |
||
642 | process_terminating db 'K : Process - terminating',13,10,0 |
||
643 | process_terminated db 'K : Process - done',13,10,0 |
||
644 | endg |
||
645 | |||
646 | |||
647 | terminate: ; terminate application |
||
648 | push esi |
||
649 | mov esi,process_terminating |
||
650 | call sys_msg_board_str |
||
651 | pop esi |
||
652 | |||
653 | cli |
||
654 | cmp [application_table_status],0 |
||
655 | je term9 |
||
656 | sti |
||
657 | call change_task |
||
658 | jmp terminate |
||
659 | term9: |
||
660 | |||
661 | call set_application_table_status |
||
662 | |||
663 | mov eax,esi |
||
664 | call dispose_app_cr3_table |
||
665 | |||
666 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
667 | jne fpu_ok_1 |
||
668 | mov [prev_user_of_fpu],1 |
||
669 | fpu_ok_1: |
||
670 | |||
671 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
672 | mov [0xf500],byte 0 ; empty button buffer |
||
673 | |||
674 | |||
675 | mov ecx,esi ; remove buttons |
||
676 | bnewba2: |
||
677 | mov edi,[0xfe88] |
||
678 | mov eax,edi |
||
679 | cld |
||
680 | movzx ebx,word [edi] |
||
681 | inc bx |
||
682 | bnewba: |
||
683 | dec bx |
||
684 | jz bnmba |
||
685 | add eax,0x10 |
||
686 | cmp cx,[eax] |
||
687 | jnz bnewba |
||
688 | pusha |
||
689 | mov ecx,ebx |
||
690 | inc ecx |
||
691 | shl ecx,4 |
||
692 | mov ebx,eax |
||
693 | add eax,0x10 |
||
694 | call memmove |
||
695 | dec dword [edi] |
||
696 | popa |
||
697 | jmp bnewba2 |
||
698 | bnmba: |
||
699 | |||
700 | pusha ; save window coordinates for window restoring |
||
701 | cld |
||
702 | shl esi,5 |
||
703 | add esi,window_data |
||
704 | mov ax,[esi+0] |
||
705 | mov word [dlx],ax |
||
706 | mov bx,[esi+8] |
||
707 | add ax,bx |
||
708 | mov word [dlxe],ax |
||
709 | mov ax,[esi+4] |
||
710 | mov word [dly],ax |
||
711 | mov bx,[esi+12] |
||
712 | add ax,bx |
||
713 | mov word [dlye],ax |
||
714 | mov [esi+0],word 0 |
||
715 | mov [esi+8],word 5 |
||
716 | mov ax,[0xFE04] |
||
717 | mov [esi+4],ax |
||
718 | mov [esi+12],word 5 |
||
719 | xor eax, eax |
||
720 | mov [esi+16],eax;dword 0 |
||
721 | mov [esi+20],eax;dword 0 |
||
722 | mov [esi+24],eax;dword 0 |
||
723 | mov [esi+28],eax;dword 0 |
||
724 | popa |
||
725 | |||
726 | pusha |
||
727 | mov edi,esi |
||
728 | shl edi,5 |
||
729 | add edi,window_data |
||
730 | mov ecx,32/4 |
||
731 | xor eax, eax |
||
732 | ; cld |
||
733 | rep stosd |
||
734 | |||
735 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
736 | add eax,2 |
||
737 | |||
738 | mov edi,esi |
||
739 | shl edi,5 |
||
740 | add edi,window_data |
||
741 | mov [edi+4],eax |
||
742 | |||
743 | popa |
||
744 | |||
745 | pusha |
||
746 | mov edi,esi |
||
747 | shl edi,5 |
||
748 | add edi,draw_data |
||
749 | mov ecx,32/4 |
||
750 | xor eax, eax |
||
751 | ; cld |
||
752 | rep stosd |
||
753 | popa |
||
754 | |||
755 | pusha ; at 0x80000+ |
||
756 | mov edi,esi |
||
757 | shl edi,8 |
||
758 | add edi,0x80000 |
||
759 | mov ecx,256/4 |
||
760 | xor eax, eax |
||
761 | ; cld |
||
762 | rep stosd |
||
763 | popa |
||
764 | |||
765 | pusha ; name to spaces |
||
766 | mov edi,esi |
||
767 | shl edi,8 |
||
768 | add edi,0x80000 |
||
769 | mov ecx,11 |
||
770 | mov eax,' ' |
||
771 | ; cld |
||
772 | rep stosb |
||
773 | popa |
||
774 | |||
775 | pusha ; C000 --> C400 |
||
776 | mov eax, 0xc000 |
||
777 | mov esi, 0 |
||
778 | nlc40: |
||
779 | add eax, 2 |
||
780 | inc esi |
||
781 | cmp esi, [0x3004] |
||
782 | jae nlc41 |
||
783 | movzx ecx, word [eax] |
||
784 | mov [0xC400 + ecx*2], si |
||
785 | jmp nlc40 |
||
786 | nlc41: |
||
787 | popa |
||
788 | |||
789 | pusha ; remove hd1 reservation |
||
790 | mov edx,esi |
||
791 | shl edx, 5 ;imul edx,0x20 |
||
792 | add edx,0x3000 |
||
793 | mov edx,[edx+4] |
||
794 | cmp [hd1_status],edx |
||
795 | jne no_hd1_s_remove |
||
796 | mov [hd1_status],0 |
||
797 | no_hd1_s_remove: |
||
798 | popa |
||
799 | |||
800 | pusha ; remove all irq reservations |
||
801 | mov edx,esi |
||
802 | shl edx, 5 ;imul edx,0x20 |
||
803 | add edx,0x3000 |
||
804 | mov edx,[edx+4] |
||
805 | mov edi,irq_owner |
||
806 | mov ecx,16 |
||
807 | newirqfree: |
||
808 | cmp [edi],edx |
||
809 | jne nofreeirq |
||
810 | mov [edi],dword 0 |
||
811 | nofreeirq: |
||
812 | add edi,4 |
||
813 | loop newirqfree |
||
814 | popa |
||
815 | |||
816 | |||
817 | pusha ; remove all port reservations |
||
33 | mario79 | 818 | mov [deleted_process],esi |
1 | ha | 819 | mov edx,esi |
820 | shl edx, 5 ;imul edx,0x20 |
||
821 | add edx,0x3000 |
||
822 | mov edx,[edx+4] |
||
823 | |||
824 | rmpr0: |
||
825 | |||
826 | mov esi,[0x2d0000] |
||
827 | |||
828 | cmp esi,0 |
||
829 | je rmpr9 |
||
830 | |||
831 | rmpr3: |
||
832 | |||
833 | mov edi,esi |
||
834 | shl edi,4 |
||
835 | add edi,0x2d0000 |
||
836 | |||
837 | cmp edx,[edi] |
||
838 | je rmpr4 |
||
839 | |||
840 | dec esi |
||
841 | jnz rmpr3 |
||
842 | |||
843 | jmp rmpr9 |
||
844 | |||
845 | rmpr4: |
||
846 | |||
847 | mov ecx,256 |
||
848 | sub ecx,esi |
||
849 | shl ecx,4 |
||
850 | |||
851 | mov esi,edi |
||
852 | add esi,16 |
||
853 | cld |
||
854 | rep movsb |
||
855 | |||
856 | dec dword [0x2d0000] |
||
857 | |||
858 | jmp rmpr0 |
||
859 | |||
860 | rmpr9: |
||
861 | |||
862 | popa |
||
863 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 864 | shl edi, 5 |
1 | ha | 865 | mov [edi+0x300A],byte 9 |
866 | ; call systest |
||
867 | sti ; .. and life goes on |
||
868 | |||
869 | ; movzx eax,word [dlx] |
||
870 | ; movzx ebx,word [dly] |
||
871 | ; movzx ecx,word [dlxe] |
||
872 | ; movzx edx,word [dlye] |
||
873 | call calculatescreen |
||
33 | mario79 | 874 | cli |
875 | mov eax,[deleted_process] |
||
876 | cmp eax,[active_process] |
||
877 | jne no_activate_process |
||
878 | call read_active_process_stack |
||
879 | no_activate_process: |
||
880 | sti |
||
1 | ha | 881 | xor eax, eax |
882 | xor esi, esi |
||
883 | call redrawscreen |
||
884 | |||
885 | mov [0xfff4],byte 0 ; no mouse background |
||
886 | mov [0xfff5],byte 0 ; draw mouse |
||
887 | |||
888 | mov [application_table_status],0 |
||
889 | mov esi,process_terminated |
||
890 | call sys_msg_board_str |
||
33 | mario79 | 891 | ret |
1 | ha | 892 | |
33 | mario79 | 893 | save_active_process_stack: |
894 | cmp [active_proc_stack_coun],0xa400+0x400-4 |
||
895 | jne @f |
||
896 | mov [active_proc_stack_coun],0xa400-4 |
||
897 | @@: |
||
898 | push eax |
||
899 | push ebx |
||
900 | mov eax,[active_process] |
||
901 | shl eax,5 |
||
902 | add eax,0x3000 |
||
903 | mov [eax-twdw+31],byte 1 |
||
904 | add [active_proc_stack_coun],4 |
||
905 | mov eax,[active_process] |
||
906 | mov ebx,[active_proc_stack_coun] |
||
907 | mov [ebx],eax |
||
908 | pop ebx |
||
909 | pop eax |
||
1 | ha | 910 | ret |
911 | |||
33 | mario79 | 912 | read_active_process_stack: |
913 | cmp [active_proc_stack_coun],0xa400-4 |
||
914 | jne @f |
||
915 | mov [active_proc_stack_coun],0xa400+0x400-4 |
||
916 | @@: |
||
917 | push eax |
||
918 | push ebx |
||
919 | mov ebx,[active_proc_stack_coun] |
||
920 | mov eax,[ebx] |
||
921 | mov [0xff01],eax ; activate |
||
922 | sub [active_proc_stack_coun],4 |
||
923 | mov [active_process_flag],1 |
||
924 | pop ebx |
||
925 | pop eax |
||
926 | ret |
||
927 | |||
1 | ha | 928 | iglobal |
929 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
8 | poddubny | 930 | boot_sched_2 db 'Building IDT table',0 |
1 | ha | 931 | endg |
932 | |||
933 | |||
934 | build_scheduler: |
||
935 | |||
936 | mov esi,boot_sched_1 |
||
937 | call boot_log |
||
938 | call build_process_gdt_tss_pointer |
||
939 | |||
8 | poddubny | 940 | mov esi,boot_sched_2 |
1 | ha | 941 | call boot_log |
942 | call build_interrupt_table |
||
943 | |||
944 | ret |
||
945 |