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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 | |
8 | poddubny | 171 | macro exceptions [num] |
172 | { |
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173 | forward |
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174 | e#num : |
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175 | mov bl, num |
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176 | jmp exc_c |
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177 | } |
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1 | ha | 178 | |
8 | poddubny | 179 | exceptions 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 |
180 | exc_c: |
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6 | poddubny | 181 | mov ax, os_data |
182 | mov ds, ax |
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183 | mov es, ax |
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1 | ha | 184 | |
8 | poddubny | 185 | movzx eax, bl |
186 | mov [error_interrupt], eax |
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1 | ha | 187 | call show_error_parameters |
8 | poddubny | 188 | |
189 | mov edx, [0x3010] |
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190 | mov [edx + 0xA], byte 4 |
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191 | |||
1 | ha | 192 | jmp change_task |
193 | |||
194 | |||
195 | ;;;;;;;;;;;;;;;;;;;;;;; |
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196 | ;; FPU ERROR HANDLER ;; |
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197 | ;;;;;;;;;;;;;;;;;;;;;;; |
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198 | |||
199 | align 4 |
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8 | poddubny | 200 | e7: |
6 | poddubny | 201 | clts |
202 | |||
203 | push eax |
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204 | push ds es |
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205 | |||
206 | mov ax, os_data |
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207 | mov ds, ax |
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208 | mov es, ax |
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209 | |||
210 | mov eax, [prev_user_of_fpu] |
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211 | shl eax, 8 |
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212 | add eax, 0x80000 + 0x10 |
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213 | fsave [eax] |
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214 | |||
215 | mov eax, [0x3000] |
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216 | mov [prev_user_of_fpu], eax |
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217 | shl eax, 8 |
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218 | add eax, 0x80000 |
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219 | cmp [eax + 0x7f], byte 0 |
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220 | je @f |
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221 | frstor [eax+0x10] |
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222 | @@: |
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223 | mov [eax + 0x7f], byte 1 |
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224 | |||
225 | pop es ds |
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226 | pop eax |
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227 | |||
228 | iret |
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229 | |||
230 | iglobal |
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231 | prev_user_of_fpu dd 1 |
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232 | endg |
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1 | ha | 233 | |
234 | |||
235 | writehex: |
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236 | pusha |
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8 | poddubny | 237 | |
238 | mov edi, [write_error_to] |
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239 | mov esi, 8 |
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240 | @@: |
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241 | mov ecx, eax |
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242 | and ecx, 0xf |
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1 | ha | 243 | |
8 | poddubny | 244 | mov cl,[ecx+hexletters] |
1 | ha | 245 | mov [edi],cl |
8 | poddubny | 246 | dec edi |
1 | ha | 247 | |
8 | poddubny | 248 | shr eax,4 |
1 | ha | 249 | dec esi |
8 | poddubny | 250 | jnz @b |
1 | ha | 251 | |
252 | popa |
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253 | ret |
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254 | |||
255 | iglobal |
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256 | hexletters db '0123456789ABCDEF' |
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257 | |||
258 | error_interrupt dd -1 |
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259 | |||
260 | process_error db 'K : Process - forced terminate INT: 00000000',13,10,0 |
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261 | process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0 |
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262 | process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0 |
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263 | system_error db 'K : Kernel error',13,10,0 |
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264 | endg |
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265 | |||
266 | uglobal |
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267 | write_error_to dd 0x0 |
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268 | endg |
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269 | |||
270 | show_error_parameters: |
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271 | |||
272 | mov [write_error_to],process_pid+43 |
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273 | mov eax,[0x3000] |
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274 | shl eax, 5 |
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275 | mov eax,[0x3000+4+eax] |
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276 | call writehex |
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277 | |||
278 | mov [write_error_to],process_error+43 |
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279 | mov eax,[error_interrupt] |
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280 | call writehex |
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281 | |||
282 | mov eax,[0x3000] |
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283 | shl eax,8 |
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8 | poddubny | 284 | cmp [0x80000+eax+0xB0],byte 0 |
10 | poddubny | 285 | jz @f |
286 | mov esi,system_error |
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287 | call sys_msg_board_str |
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288 | @@: |
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289 | |||
1 | ha | 290 | mov eax,[0x3000] |
291 | imul eax,tss_step |
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292 | mov eax,[eax+tss_data+l.eip-tss_sceleton] |
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10 | poddubny | 293 | |
1 | ha | 294 | mov [write_error_to],process_eip+43 |
295 | call writehex |
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296 | |||
297 | mov esi,process_error |
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298 | call sys_msg_board_str |
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299 | |||
300 | mov esi,process_pid |
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301 | call sys_msg_board_str |
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302 | |||
303 | mov esi,process_eip |
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304 | call sys_msg_board_str |
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305 | |||
306 | ret |
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307 | |||
308 | |||
309 | |||
6 | poddubny | 310 | ; irq1 -> hid/keyboard.inc |
1 | ha | 311 | |
312 | |||
10 | poddubny | 313 | macro irqh [num] |
8 | poddubny | 314 | { |
315 | forward |
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316 | p_irq#num : |
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317 | pushad |
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318 | mov edi, num |
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319 | jmp irq_c |
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320 | } |
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1 | ha | 321 | |
11 | poddubny | 322 | irqh 2,3,4,5,7,8,9,10,11,12,14,15 |
1 | ha | 323 | |
8 | poddubny | 324 | irq_c: |
325 | push ds es |
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326 | mov ax, os_data |
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327 | mov ds, ax |
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328 | mov es, ax |
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1 | ha | 329 | call irqhandler |
8 | poddubny | 330 | pop es ds |
331 | popad |
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332 | iret |
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11 | poddubny | 333 | |
334 | p_irq6: |
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335 | pushad |
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336 | push ds es |
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337 | mov ax, os_data |
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338 | mov ds, ax |
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339 | mov es, ax |
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340 | call fdc_irq |
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341 | pop es ds |
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342 | popad |
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343 | iret |
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344 | |||
6 | poddubny | 345 | irqD: |
8 | poddubny | 346 | pushad |
347 | push ds es |
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348 | mov ax, os_data |
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349 | mov ds, ax |
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350 | mov es, ax |
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351 | |||
6 | poddubny | 352 | mov dx,0xf0 |
353 | mov al,0 |
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354 | out dx,al |
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1 | ha | 355 | |
6 | poddubny | 356 | mov dx,0xa0 |
357 | mov al,0x20 |
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358 | out dx,al |
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359 | mov dx,0x20 |
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8 | poddubny | 360 | out dx,al |
6 | poddubny | 361 | |
8 | poddubny | 362 | pop es ds |
363 | popad |
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364 | iret |
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1 | ha | 365 | |
366 | |||
367 | irqhandler: |
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368 | |||
369 | push edi |
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370 | |||
371 | mov esi,edi ; 1 |
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372 | shl esi,6 ; 1 |
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373 | add esi,irq00read ; 1 |
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374 | shl edi,12 ; 1 |
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375 | add edi,0x2E0000 |
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376 | |||
377 | mov [check_idle_semaphore],5 |
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378 | |||
379 | irqnewread: |
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380 | |||
381 | mov dx,[esi] ; 2+ |
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382 | |||
383 | cmp dx,0 ; 1 |
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384 | jz irqover |
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385 | cmp [esi+3],byte 1 ; 2 ; byte read |
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386 | jne noirqbyte ; 4-11 |
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387 | |||
388 | in al,dx |
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389 | |||
390 | mov edx,[edi] |
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391 | cmp edx,4000 |
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392 | je irqfull |
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393 | mov ebx,edi |
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394 | add ebx,0x10 |
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395 | add ebx,edx |
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396 | mov [ebx],al |
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397 | inc edx |
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398 | mov [edi],edx |
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399 | |||
400 | add esi,4 |
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401 | jmp irqnewread |
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402 | |||
403 | noirqbyte: |
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404 | |||
405 | |||
406 | cmp [esi+3],byte 2 ; word read |
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407 | jne noirqword |
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408 | |||
409 | in ax,dx |
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410 | |||
411 | mov edx,[edi] |
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412 | cmp edx,4000 |
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413 | je irqfull |
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414 | mov ebx,edi |
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415 | add ebx,0x10 |
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416 | add ebx,edx |
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417 | mov [ebx],ax |
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418 | add edx,2 |
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419 | mov [edi],edx |
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420 | add esi,4 |
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421 | jmp irqnewread |
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422 | |||
423 | noirqword: |
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424 | irqfull: |
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425 | irqover: |
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426 | |||
427 | mov al,0x20 ; ready for next irq |
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428 | out 0x20,al |
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429 | |||
430 | pop ebx |
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431 | cmp ebx,7 |
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432 | jbe noa0 |
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433 | out 0xa0,al |
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434 | noa0: |
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435 | |||
436 | ret |
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437 | |||
438 | |||
439 | |||
440 | set_application_table_status: |
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441 | push eax |
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442 | |||
443 | mov eax,[0x3000] |
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444 | shl eax, 5 |
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445 | add eax,0x3000+4 |
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446 | mov eax,[eax] |
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447 | |||
448 | mov [application_table_status],eax |
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449 | |||
450 | pop eax |
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451 | |||
452 | ret |
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453 | |||
454 | |||
455 | clear_application_table_status: |
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456 | push eax |
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457 | |||
458 | mov eax,[0x3000] |
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459 | shl eax, 5 |
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460 | add eax,0x3000+4 |
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461 | mov eax,[eax] |
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462 | |||
463 | cmp eax,[application_table_status] |
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464 | jne apptsl1 |
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465 | mov [application_table_status],0 |
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466 | apptsl1: |
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467 | |||
468 | pop eax |
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469 | |||
470 | ret |
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471 | |||
472 | |||
473 | |||
474 | sys_resize_app_memory: |
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475 | ; eax = 1 - resize |
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476 | ; ebx = new amount of memory |
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477 | |||
478 | cmp eax,1 |
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4 | poddubny | 479 | jne .no_application_mem_resize |
1 | ha | 480 | |
4 | poddubny | 481 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 482 | |
483 | |||
4 | poddubny | 484 | .no_application_mem_resize: |
1 | ha | 485 | |
486 | ret |
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487 | |||
488 | |||
489 | |||
490 | get_app_params: |
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491 | |||
492 | push eax |
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493 | |||
494 | cmp [0x90000+6],word '00' |
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495 | jne no_00_header |
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496 | |||
497 | mov eax,[0x90000+12] |
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498 | mov [app_start],eax |
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499 | mov eax,[0x90000+16] |
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500 | mov [app_i_end],eax |
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501 | mov eax,[0x90000+20] |
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502 | mov [app_mem],eax |
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503 | shr eax,1 |
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504 | sub eax,0x10 |
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505 | mov [app_esp],eax |
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506 | mov eax,[0x90000+24] |
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507 | mov [app_i_param],eax |
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508 | mov [app_i_icon],dword 0 |
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509 | |||
510 | pop eax |
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511 | mov esi,1 |
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512 | ret |
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513 | |||
514 | no_00_header: |
||
515 | |||
516 | |||
517 | cmp [0x90000+6],word '01' |
||
518 | jne no_01_header |
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519 | |||
520 | mov eax,[0x90000+12] |
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521 | mov [app_start],eax |
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522 | mov eax,[0x90000+16] |
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523 | mov [app_i_end],eax |
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524 | mov eax,[0x90000+20] |
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525 | mov [app_mem],eax |
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526 | mov eax,[0x90000+24] |
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527 | mov [app_esp],eax |
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528 | mov eax,[0x90000+28] |
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529 | mov [app_i_param],eax |
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530 | mov eax,[0x90000+32] |
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531 | mov [app_i_icon],eax |
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532 | |||
533 | pop eax |
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534 | mov esi,1 |
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535 | ret |
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536 | |||
537 | no_01_header: |
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538 | |||
539 | pop eax |
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540 | mov esi,0 |
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541 | ret |
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542 | |||
543 | |||
544 | start_application_fl: |
||
545 | jmp new_start_application_fl |
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546 | |||
547 | ;************************************************************************ |
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548 | |||
549 | start_application_floppy: |
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550 | jmp new_start_application_floppy |
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551 | |||
552 | ;******************************************************************** |
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553 | |||
554 | start_application_hd: |
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555 | jmp new_start_application_hd |
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556 | |||
557 | uglobal |
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558 | new_process_place dd 0x0 |
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559 | app_start dd 0x0 |
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560 | app_i_end dd 0x0 |
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561 | app_mem dd 0x0 |
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562 | app_esp dd 0x0 |
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563 | app_i_param dd 0x0 |
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564 | app_i_icon dd 0x0 |
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565 | app_mem_pos dd 0x0 |
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5 | halyavin | 566 | appl_path dd 0x0 |
567 | appl_path_size dd 0x0 |
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1 | ha | 568 | endg |
569 | |||
570 | iglobal |
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571 | hd_app_string db 'HDAPP ' |
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572 | process_loading db 'K : Process - loading ',13,10,0 |
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573 | process_running db 'K : Process - done',13,10,0 |
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574 | first_gdt_search dd 0x2 |
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575 | endg |
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576 | |||
577 | |||
578 | sys_threads: |
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579 | |||
580 | ; eax=1 create thread |
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581 | ; |
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582 | ; ebx=thread start |
||
583 | ; ecx=thread stack value |
||
584 | ; |
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585 | ; on return : eax = pid |
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586 | jmp new_sys_threads |
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587 | |||
588 | iglobal |
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589 | process_terminating db 'K : Process - terminating',13,10,0 |
||
590 | process_terminated db 'K : Process - done',13,10,0 |
||
591 | endg |
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592 | |||
593 | |||
594 | terminate: ; terminate application |
||
595 | push esi |
||
596 | mov esi,process_terminating |
||
597 | call sys_msg_board_str |
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598 | pop esi |
||
599 | |||
600 | cli |
||
601 | cmp [application_table_status],0 |
||
602 | je term9 |
||
603 | sti |
||
604 | call change_task |
||
605 | jmp terminate |
||
606 | term9: |
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607 | |||
608 | call set_application_table_status |
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609 | |||
610 | mov eax,esi |
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611 | call dispose_app_cr3_table |
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612 | |||
613 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
614 | jne fpu_ok_1 |
||
615 | mov [prev_user_of_fpu],1 |
||
616 | fpu_ok_1: |
||
617 | |||
618 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
619 | mov [0xf500],byte 0 ; empty button buffer |
||
620 | |||
621 | |||
622 | mov ecx,esi ; remove buttons |
||
623 | bnewba2: |
||
624 | mov edi,[0xfe88] |
||
625 | mov eax,edi |
||
626 | cld |
||
627 | movzx ebx,word [edi] |
||
628 | inc bx |
||
629 | bnewba: |
||
630 | dec bx |
||
631 | jz bnmba |
||
632 | add eax,0x10 |
||
633 | cmp cx,[eax] |
||
634 | jnz bnewba |
||
635 | pusha |
||
636 | mov ecx,ebx |
||
637 | inc ecx |
||
638 | shl ecx,4 |
||
639 | mov ebx,eax |
||
640 | add eax,0x10 |
||
641 | call memmove |
||
642 | dec dword [edi] |
||
643 | popa |
||
644 | jmp bnewba2 |
||
645 | bnmba: |
||
646 | |||
647 | pusha ; save window coordinates for window restoring |
||
648 | cld |
||
649 | shl esi,5 |
||
650 | add esi,window_data |
||
651 | mov ax,[esi+0] |
||
652 | mov word [dlx],ax |
||
653 | mov bx,[esi+8] |
||
654 | add ax,bx |
||
655 | mov word [dlxe],ax |
||
656 | mov ax,[esi+4] |
||
657 | mov word [dly],ax |
||
658 | mov bx,[esi+12] |
||
659 | add ax,bx |
||
660 | mov word [dlye],ax |
||
661 | mov [esi+0],word 0 |
||
662 | mov [esi+8],word 5 |
||
663 | mov ax,[0xFE04] |
||
664 | mov [esi+4],ax |
||
665 | mov [esi+12],word 5 |
||
666 | xor eax, eax |
||
667 | mov [esi+16],eax;dword 0 |
||
668 | mov [esi+20],eax;dword 0 |
||
669 | mov [esi+24],eax;dword 0 |
||
670 | mov [esi+28],eax;dword 0 |
||
671 | popa |
||
672 | |||
673 | pusha |
||
674 | mov edi,esi |
||
675 | shl edi,5 |
||
676 | add edi,window_data |
||
677 | mov ecx,32/4 |
||
678 | xor eax, eax |
||
679 | ; cld |
||
680 | rep stosd |
||
681 | |||
682 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
683 | add eax,2 |
||
684 | |||
685 | mov edi,esi |
||
686 | shl edi,5 |
||
687 | add edi,window_data |
||
688 | mov [edi+4],eax |
||
689 | |||
690 | popa |
||
691 | |||
692 | pusha |
||
693 | mov edi,esi |
||
694 | shl edi,5 |
||
695 | add edi,draw_data |
||
696 | mov ecx,32/4 |
||
697 | xor eax, eax |
||
698 | ; cld |
||
699 | rep stosd |
||
700 | popa |
||
701 | |||
702 | pusha ; at 0x80000+ |
||
703 | mov edi,esi |
||
704 | shl edi,8 |
||
705 | add edi,0x80000 |
||
706 | mov ecx,256/4 |
||
707 | xor eax, eax |
||
708 | ; cld |
||
709 | rep stosd |
||
710 | popa |
||
711 | |||
712 | pusha ; name to spaces |
||
713 | mov edi,esi |
||
714 | shl edi,8 |
||
715 | add edi,0x80000 |
||
716 | mov ecx,11 |
||
717 | mov eax,' ' |
||
718 | ; cld |
||
719 | rep stosb |
||
720 | popa |
||
721 | |||
722 | pusha ; C000 --> C400 |
||
723 | mov eax, 0xc000 |
||
724 | mov esi, 0 |
||
725 | nlc40: |
||
726 | add eax, 2 |
||
727 | inc esi |
||
728 | cmp esi, [0x3004] |
||
729 | jae nlc41 |
||
730 | movzx ecx, word [eax] |
||
731 | mov [0xC400 + ecx*2], si |
||
732 | jmp nlc40 |
||
733 | nlc41: |
||
734 | popa |
||
735 | |||
736 | pusha ; remove hd1 reservation |
||
737 | mov edx,esi |
||
738 | shl edx, 5 ;imul edx,0x20 |
||
739 | add edx,0x3000 |
||
740 | mov edx,[edx+4] |
||
741 | cmp [hd1_status],edx |
||
742 | jne no_hd1_s_remove |
||
743 | mov [hd1_status],0 |
||
744 | no_hd1_s_remove: |
||
745 | popa |
||
746 | |||
747 | pusha ; remove all irq reservations |
||
748 | mov edx,esi |
||
749 | shl edx, 5 ;imul edx,0x20 |
||
750 | add edx,0x3000 |
||
751 | mov edx,[edx+4] |
||
752 | mov edi,irq_owner |
||
753 | mov ecx,16 |
||
754 | newirqfree: |
||
755 | cmp [edi],edx |
||
756 | jne nofreeirq |
||
757 | mov [edi],dword 0 |
||
758 | nofreeirq: |
||
759 | add edi,4 |
||
760 | loop newirqfree |
||
761 | popa |
||
762 | |||
763 | |||
764 | pusha ; remove all port reservations |
||
765 | |||
766 | mov edx,esi |
||
767 | shl edx, 5 ;imul edx,0x20 |
||
768 | add edx,0x3000 |
||
769 | mov edx,[edx+4] |
||
770 | |||
771 | rmpr0: |
||
772 | |||
773 | mov esi,[0x2d0000] |
||
774 | |||
775 | cmp esi,0 |
||
776 | je rmpr9 |
||
777 | |||
778 | rmpr3: |
||
779 | |||
780 | mov edi,esi |
||
781 | shl edi,4 |
||
782 | add edi,0x2d0000 |
||
783 | |||
784 | cmp edx,[edi] |
||
785 | je rmpr4 |
||
786 | |||
787 | dec esi |
||
788 | jnz rmpr3 |
||
789 | |||
790 | jmp rmpr9 |
||
791 | |||
792 | rmpr4: |
||
793 | |||
794 | mov ecx,256 |
||
795 | sub ecx,esi |
||
796 | shl ecx,4 |
||
797 | |||
798 | mov esi,edi |
||
799 | add esi,16 |
||
800 | cld |
||
801 | rep movsb |
||
802 | |||
803 | dec dword [0x2d0000] |
||
804 | |||
805 | jmp rmpr0 |
||
806 | |||
807 | rmpr9: |
||
808 | |||
809 | popa |
||
810 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 811 | shl edi, 5 |
1 | ha | 812 | mov [edi+0x300A],byte 9 |
813 | ; call systest |
||
814 | sti ; .. and life goes on |
||
815 | |||
816 | ; movzx eax,word [dlx] |
||
817 | ; movzx ebx,word [dly] |
||
818 | ; movzx ecx,word [dlxe] |
||
819 | ; movzx edx,word [dlye] |
||
820 | call calculatescreen |
||
821 | |||
822 | xor eax, eax |
||
823 | xor esi, esi |
||
824 | call redrawscreen |
||
825 | |||
826 | mov [0xfff4],byte 0 ; no mouse background |
||
827 | mov [0xfff5],byte 0 ; draw mouse |
||
828 | |||
829 | mov [application_table_status],0 |
||
830 | |||
831 | mov esi,process_terminated |
||
832 | call sys_msg_board_str |
||
833 | |||
834 | ;* start code - fix error redraw for terminate (2) - Mario79 |
||
835 | ; cmp [draw_present],1 |
||
836 | ; je no_draw_background_temp |
||
837 | ; mov [0xfff0],byte 1 |
||
838 | ;no_draw_background_temp: |
||
839 | ; mov [draw_present],0 |
||
840 | ret |
||
841 | ;draw_present db 0 |
||
842 | ;* end code - fix error redraw for terminate (2) - Mario79 |
||
843 | |||
844 | iglobal |
||
845 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
8 | poddubny | 846 | boot_sched_2 db 'Building IDT table',0 |
1 | ha | 847 | endg |
848 | |||
849 | |||
850 | build_scheduler: |
||
851 | |||
852 | mov esi,boot_sched_1 |
||
853 | call boot_log |
||
854 | call build_process_gdt_tss_pointer |
||
855 | |||
8 | poddubny | 856 | mov esi,boot_sched_2 |
1 | ha | 857 | call boot_log |
858 | call build_interrupt_table |
||
859 | |||
860 | ret |
||
861 |