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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 | graph_data_l: |
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39 | |||
40 | dw 0x3ff |
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41 | dw 0x0000 |
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42 | db 0x00 |
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43 | dw 11010000b *256 +11110010b |
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44 | db 0x00 |
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45 | |||
46 | tss0_l: |
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47 | times (max_processes+10) dd 0,0 |
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48 | |||
49 | tss0i_l: |
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50 | times 0x41 dq 0 ;(256+10) dd 0,0 |
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51 | |||
52 | app_code_l: |
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4 | poddubny | 53 | dw ((0x80000000-std_application_base_address) shr 12) and 0xffff |
54 | dw 0 |
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55 | db 0 |
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56 | dw 11010000b*256+11111010b+256*((0x80000000-std_application_base_address) shr 28) |
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57 | db std_application_base_address shr 24 |
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1 | ha | 58 | |
59 | app_data_l: |
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4 | poddubny | 60 | dw (0x80000000-std_application_base_address) shr 12 and 0xffff |
61 | dw 0 |
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62 | db 0 |
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63 | dw 11010000b*256+11110010b+256*((0x80000000-std_application_base_address) shr 28) |
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64 | db std_application_base_address shr 24 |
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1 | ha | 65 | |
66 | |||
67 | gdte: |
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68 | |||
69 | |||
70 | |||
71 | idtreg: |
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72 | dw 8*0x41-1 |
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73 | dd idts+8 |
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74 | |||
75 | label idts at 0xB100-8 |
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76 | ;idte = idts + 8 + 0x60 |
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77 | |||
78 | |||
79 | |||
80 | build_process_gdt_tss_pointer: |
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81 | |||
82 | mov ecx,tss_data |
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83 | mov edi,0 |
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84 | setgdtl2: |
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85 | mov [edi+gdts+ tss0 +0], word tss_step |
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86 | mov [edi+gdts+ tss0 +2], cx |
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87 | mov eax,ecx |
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88 | shr eax,16 |
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89 | mov [edi+gdts+ tss0 +4], al |
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90 | mov [edi+gdts+ tss0 +7], ah |
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91 | mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b |
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92 | add ecx,tss_step |
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93 | add edi,8 |
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94 | cmp edi,8*(max_processes+5) |
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95 | jbe setgdtl2 |
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96 | |||
97 | ret |
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98 | |||
99 | |||
100 | build_interrupt_table: |
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101 | |||
102 | mov [l.eflags],dword 0x11002 |
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103 | mov [l.ss0], int_data |
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104 | ;mov [l.ss1], ring1_data |
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105 | ;mov [l.ss2], ring2_data |
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106 | mov [l.esp0], 0x52000 |
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107 | mov [l.esp1], 0x53000 |
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108 | mov [l.esp2], 0x54000 |
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109 | |||
110 | mov eax,cr3 |
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111 | mov [l.cr3],eax |
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112 | mov [l.cs],int_code |
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113 | mov [l.ss],int_data |
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114 | mov [l.ds],int_data |
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115 | mov [l.es],int_data |
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116 | mov [l.fs],int_data |
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117 | mov [l.gs],int_data |
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118 | |||
119 | mov eax,sys_int |
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120 | mov [l.esp],0x720000 |
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121 | mov edi,0x290000 |
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122 | |||
123 | newint: |
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124 | push edi |
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125 | mov ebx,[eax] |
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126 | mov [l.eip],ebx |
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127 | mov esi,tss_sceleton |
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128 | mov ecx,120/4 |
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129 | cld |
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130 | rep movsd |
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131 | pop edi |
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132 | |||
133 | add edi,128 |
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134 | add [l.esp],1024 |
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135 | add eax,4 |
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136 | |||
137 | cmp eax,sys_int+4*0x40 ;0x60 |
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138 | jbe newint ;jb |
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139 | |||
140 | ;; |
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141 | |||
142 | mov esi,boot_sched_3_2 |
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143 | call boot_log |
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144 | |||
145 | mov ecx,0x290000 |
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146 | mov edi,0 |
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147 | setgdtl2i: |
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148 | mov [edi+gdts+ tss0i +0], word 128 |
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149 | mov [edi+gdts+ tss0i +2], cx |
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150 | mov eax,ecx |
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151 | shr eax,16 |
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152 | mov [edi+gdts+ tss0i +4], al |
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153 | mov [edi+gdts+ tss0i +7], ah |
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154 | mov [edi+gdts+ tss0i +5], word 01010000b *256 +11101001b |
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155 | add ecx,128 |
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156 | add edi,8 |
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157 | cmp edi,8*0x40 ;0x60 |
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158 | jbe setgdtl2i |
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159 | |||
160 | ;; |
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161 | |||
162 | mov esi,boot_sched_3_3 |
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163 | call boot_log |
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164 | |||
165 | mov edi,0 |
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166 | mov edx,tss0i |
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6 | poddubny | 167 | @@: |
1 | ha | 168 | mov [edi+idts+ 8 +0], word 0 |
169 | mov [edi+idts+ 8 +2], dx |
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170 | mov [edi+idts+ 8 +4], word 10000101b*256 ; task gate DPL=0 |
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171 | mov [edi+idts+ 8 +6], word 0 |
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172 | add edx,8 |
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173 | add edi,8 |
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174 | |||
6 | poddubny | 175 | cmp edi,8*0x40 |
176 | jb @b |
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177 | |||
178 | ; Exceptions |
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179 | mov edi, idts+8 |
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180 | mov esi, sys_int |
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181 | mov ecx, 32 |
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182 | @@: |
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183 | mov eax, [esi] |
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184 | mov [edi], ax ; lower part of offset |
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185 | mov [edi+2], word os_code ; segment selector |
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186 | shr eax, 16 |
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187 | mov [edi+4], word 10001110b shl 8 ; interrupt descriptor |
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188 | mov [edi+6], ax |
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189 | add esi, 4 |
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190 | add edi, 8 |
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191 | dec ecx |
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192 | jnz @b |
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1 | ha | 193 | |
194 | ret |
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195 | |||
196 | build_syscall_interrupt_table: |
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197 | |||
198 | ;mov dx,tss0sys |
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199 | mov edi,8*0x40+idts+8 |
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3 | halyavin | 200 | mov [edi + 0], word (i40 and ((1 shl 16)-1)) |
201 | mov [edi + 2], word os_code |
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202 | mov [edi + 4], word 11101110b*256 |
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203 | mov [edi + 6], word (i40 shr 16) |
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1 | ha | 204 | |
205 | ret |
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206 | |||
207 | |||
208 | |||
209 | iglobal |
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210 | sys_int: |
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211 | dd s0,s1,s2,s3,s4,s5,s6,s7,s8,s9,sa,sb,sc,sd,se,sf |
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212 | |||
213 | dd s10 ,s11 ; ,i_unknown12,i_unknown13 |
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214 | ; dd i_unknown14,i_unknown15,i_unknown16,i_unknown17 |
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215 | ; dd i_unknown18,i_unknown19,i_unknown1a,i_unknown1b |
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216 | ; dd i_unknown1c,i_unknown1d,i_unknown1e,i_unknown1f |
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217 | times 14 dd unknown_interrupt |
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218 | |||
219 | dd irq0 ,irq1 ,p_irq2 ,p_irq3 ,p_irq4 ,p_irq5,p_irq6 ,p_irq7 |
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220 | dd p_irq8,p_irq9,p_irq10,p_irq11,p_irq12,irqD ,p_irq14,p_irq15 |
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221 | |||
222 | ;dd i_unknown30,i_unknown31,i_unknown32,i_unknown33 |
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223 | ;dd i_unknown34,i_unknown35,i_unknown36,i_unknown37 |
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224 | ;dd i_unknown38,i_unknown39,i_unknown3a,i_unknown3b |
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225 | ;dd i_unknown3c,i_unknown3d,i_unknown3e,i_unknown3f |
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226 | times 16 dd unknown_interrupt |
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227 | |||
228 | dd i40 |
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229 | endg |
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230 | |||
231 | uglobal |
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232 | tss_sceleton: |
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233 | l.back dw 0,0 |
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234 | l.esp0 dd 0 |
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235 | l.ss0 dw 0,0 |
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236 | l.esp1 dd 0 |
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237 | l.ss1 dw 0,0 |
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238 | l.esp2 dd 0 |
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239 | l.ss2 dw 0,0 |
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240 | l.cr3 dd 0 |
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241 | l.eip dd 0 |
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242 | l.eflags dd 0 |
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243 | l.eax dd 0 |
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244 | l.ecx dd 0 |
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245 | l.edx dd 0 |
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246 | l.ebx dd 0 |
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247 | l.esp dd 0 |
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248 | l.ebp dd 0 |
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249 | l.esi dd 0 |
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250 | l.edi dd 0 |
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251 | l.es dw 0,0 |
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252 | l.cs dw 0,0 |
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253 | l.ss dw 0,0 |
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254 | l.ds dw 0,0 |
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255 | l.fs dw 0,0 |
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256 | l.gs dw 0,0 |
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257 | l.ldt dw 0,0 |
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258 | l.trap dw 0 |
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259 | l.io dw 0 |
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260 | endg |
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261 | |||
262 | s0: |
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6 | poddubny | 263 | mov ax, os_data |
264 | mov ds, ax |
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265 | mov es, ax |
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1 | ha | 266 | |
267 | mov [error_interrupt],0x0 |
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268 | mov [error_interrupt_entry],dword s0 |
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269 | |||
270 | call show_error_parameters |
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271 | |||
272 | mov edx,[0x3010] |
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273 | mov [edx+0xa],byte 4 |
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274 | |||
275 | jmp change_task |
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276 | |||
277 | |||
278 | s1: |
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6 | poddubny | 279 | mov ax, os_data |
280 | mov ds, ax |
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281 | mov es, ax |
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1 | ha | 282 | |
283 | mov [error_interrupt],0x1 |
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284 | mov [error_interrupt_entry],dword s1 |
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285 | |||
286 | call show_error_parameters |
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287 | |||
288 | mov edx,[0x3010] |
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289 | mov [edx+0xa],byte 4 |
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290 | |||
291 | jmp change_task |
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292 | |||
293 | s2: |
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6 | poddubny | 294 | mov ax, os_data |
295 | mov ds, ax |
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296 | mov es, ax |
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1 | ha | 297 | |
298 | mov [error_interrupt],0x2 |
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299 | mov [error_interrupt_entry],dword s2 |
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300 | |||
301 | call show_error_parameters |
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302 | |||
303 | mov edx,[0x3010] |
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304 | mov [edx+0xa],byte 4 |
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305 | |||
306 | jmp change_task |
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307 | |||
308 | s3: |
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6 | poddubny | 309 | mov ax, os_data |
310 | mov ds, ax |
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311 | mov es, ax |
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1 | ha | 312 | |
313 | mov [error_interrupt],0x3 |
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314 | mov [error_interrupt_entry],dword s3 |
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315 | |||
316 | call show_error_parameters |
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317 | |||
318 | mov edx,[0x3010] |
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319 | mov [edx+0xa],byte 4 |
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320 | |||
321 | jmp change_task |
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322 | |||
323 | s4: |
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6 | poddubny | 324 | mov ax, os_data |
325 | mov ds, ax |
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326 | mov es, ax |
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1 | ha | 327 | |
328 | mov [error_interrupt],0x4 |
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329 | mov [error_interrupt_entry],dword s4 |
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330 | |||
331 | call show_error_parameters |
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332 | |||
333 | mov edx,[0x3010] |
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334 | mov [edx+0xa],byte 4 |
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335 | |||
336 | jmp change_task |
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337 | |||
338 | s5: |
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6 | poddubny | 339 | mov ax, os_data |
340 | mov ds, ax |
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341 | mov es, ax |
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1 | ha | 342 | |
343 | mov [error_interrupt],0x5 |
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344 | mov [error_interrupt_entry],dword s5 |
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345 | |||
346 | call show_error_parameters |
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347 | |||
348 | mov edx,[0x3010] |
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349 | mov [edx+0xa],byte 4 |
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350 | |||
351 | jmp change_task |
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352 | |||
353 | s6: |
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6 | poddubny | 354 | mov ax, os_data |
355 | mov ds, ax |
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356 | mov es, ax |
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1 | ha | 357 | |
358 | mov [error_interrupt],0x6 |
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359 | mov [error_interrupt_entry],dword s6 |
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360 | |||
361 | call show_error_parameters |
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362 | |||
363 | mov edx,[0x3010] |
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364 | mov [edx+0xa],byte 4 |
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365 | |||
366 | jmp change_task |
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367 | |||
368 | |||
369 | ;;;;;;;;;;;;;;;;;;;;;;; |
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370 | ;; FPU ERROR HANDLER ;; |
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371 | ;;;;;;;;;;;;;;;;;;;;;;; |
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372 | |||
373 | align 4 |
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374 | s7: |
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6 | poddubny | 375 | clts |
376 | |||
377 | push eax |
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378 | push ds es |
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379 | |||
380 | mov ax, os_data |
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381 | mov ds, ax |
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382 | mov es, ax |
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383 | |||
384 | mov eax, [prev_user_of_fpu] |
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385 | shl eax, 8 |
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386 | add eax, 0x80000 + 0x10 |
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387 | fsave [eax] |
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388 | |||
389 | mov eax, [0x3000] |
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390 | mov [prev_user_of_fpu], eax |
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391 | shl eax, 8 |
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392 | add eax, 0x80000 |
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393 | cmp [eax + 0x7f], byte 0 |
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394 | je @f |
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395 | frstor [eax+0x10] |
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396 | @@: |
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397 | mov [eax + 0x7f], byte 1 |
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398 | |||
399 | pop es ds |
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400 | pop eax |
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401 | |||
402 | iret |
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403 | |||
404 | iglobal |
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405 | prev_user_of_fpu dd 1 |
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406 | endg |
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1 | ha | 407 | |
408 | |||
409 | s8: |
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6 | poddubny | 410 | add esp, 4 ; zero on the stack! |
411 | mov ax, os_data |
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412 | mov ds, ax |
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413 | mov es, ax |
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1 | ha | 414 | |
415 | mov [error_interrupt],0x8 |
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416 | mov [error_interrupt_entry],dword s8 |
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417 | |||
418 | call show_error_parameters |
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419 | |||
420 | mov edx,[0x3010] |
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421 | mov [edx+0xa],byte 4 |
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422 | |||
423 | jmp change_task |
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424 | |||
425 | s9: |
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6 | poddubny | 426 | mov ax, os_data |
427 | mov ds, ax |
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428 | mov es, ax |
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1 | ha | 429 | |
430 | mov [error_interrupt],0x9 |
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431 | mov [error_interrupt_entry],dword s9 |
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432 | |||
433 | call show_error_parameters |
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434 | |||
435 | mov edx,[0x3010] |
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436 | mov [edx+0xa],byte 4 |
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437 | |||
438 | jmp change_task |
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439 | |||
6 | poddubny | 440 | ; Invalid TSS |
1 | ha | 441 | sa: |
6 | poddubny | 442 | add esp, 4 ; error code |
443 | mov ax, os_data |
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444 | mov ds, ax |
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445 | mov es, ax |
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1 | ha | 446 | |
447 | mov [error_interrupt],0xa |
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448 | mov [error_interrupt_entry],dword sa |
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449 | |||
450 | call show_error_parameters |
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451 | |||
452 | mov edx,[0x3010] |
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453 | mov [edx+0xa],byte 4 |
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454 | |||
455 | jmp change_task |
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456 | |||
6 | poddubny | 457 | ; Segment not present |
1 | ha | 458 | sb: |
6 | poddubny | 459 | add esp, 4 |
460 | mov ax, os_data |
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461 | mov ds, ax |
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462 | mov es, ax |
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1 | ha | 463 | |
464 | mov [error_interrupt],0xb |
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465 | mov [error_interrupt_entry],dword sb |
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466 | |||
467 | call show_error_parameters |
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468 | |||
469 | mov edx,[0x3010] |
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470 | mov [edx+0xa],byte 4 |
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471 | |||
472 | jmp change_task |
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473 | |||
6 | poddubny | 474 | ; Stack fault exception |
1 | ha | 475 | sc: |
6 | poddubny | 476 | add esp, 4 |
477 | mov ax, os_data |
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478 | mov ds, ax |
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479 | mov es, ax |
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1 | ha | 480 | |
481 | mov [error_interrupt],0xc |
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482 | mov [error_interrupt_entry],dword sc |
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483 | |||
484 | call show_error_parameters |
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485 | |||
486 | mov edx,[0x3010] |
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487 | mov [edx+0xa],byte 4 |
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488 | |||
489 | jmp change_task |
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490 | |||
6 | poddubny | 491 | ; General Protection Fault |
1 | ha | 492 | sd: |
6 | poddubny | 493 | add esp, 4 |
494 | mov ax, os_data |
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495 | mov ds, ax |
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496 | mov es, ax |
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1 | ha | 497 | |
498 | mov [error_interrupt],0xd |
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499 | mov [error_interrupt_entry],dword sd |
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500 | |||
501 | call show_error_parameters |
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502 | |||
503 | mov edx,[0x3010] |
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504 | mov [edx+0xa],byte 4 |
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505 | |||
506 | jmp change_task |
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507 | |||
6 | poddubny | 508 | ; Page-Fault Exception |
1 | ha | 509 | se: |
6 | poddubny | 510 | add esp, 4 |
511 | mov ax, os_data |
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512 | mov ds, ax |
||
513 | mov es, ax |
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1 | ha | 514 | |
515 | mov [error_interrupt],0xe |
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516 | mov [error_interrupt_entry],dword se |
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517 | |||
518 | call show_error_parameters |
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519 | |||
520 | mov edx,[0x3010] |
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521 | mov [edx+0xa],byte 4 |
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522 | |||
523 | jmp change_task |
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524 | |||
6 | poddubny | 525 | ; ?? |
1 | ha | 526 | sf: |
6 | poddubny | 527 | mov ax, os_data |
528 | mov ds, ax |
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529 | mov es, ax |
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1 | ha | 530 | |
531 | mov [error_interrupt],0xf |
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532 | mov [error_interrupt_entry],dword sf |
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533 | |||
534 | call show_error_parameters |
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535 | |||
536 | mov edx,[0x3010] |
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537 | mov [edx+0xa],byte 4 |
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538 | |||
539 | jmp change_task |
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540 | |||
6 | poddubny | 541 | ; x87 FPU Floating-Point Error |
1 | ha | 542 | s10: |
6 | poddubny | 543 | mov ax, os_data |
544 | mov ds, ax |
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545 | mov es, ax |
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1 | ha | 546 | |
547 | mov [error_interrupt],0x10 |
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548 | mov [error_interrupt_entry],dword s10 |
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549 | |||
550 | call show_error_parameters |
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551 | |||
552 | mov edx,[0x3010] |
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553 | mov [edx+0xa],byte 4 |
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554 | |||
555 | jmp change_task |
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556 | |||
6 | poddubny | 557 | ; Alignment Check Exception |
1 | ha | 558 | s11: |
6 | poddubny | 559 | add esp, 4 |
560 | mov ax, os_data |
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561 | mov ds, ax |
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562 | mov es, ax |
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1 | ha | 563 | |
564 | mov [error_interrupt],0x11 |
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565 | mov [error_interrupt_entry],dword s11 |
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566 | |||
567 | call show_error_parameters |
||
568 | |||
569 | mov edx,[0x3010] |
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570 | mov [edx+0xa],byte 4 |
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571 | |||
572 | jmp change_task |
||
573 | |||
6 | poddubny | 574 | |
575 | |||
576 | |||
1 | ha | 577 | writehex: |
578 | |||
579 | pusha |
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580 | |||
581 | mov ecx,eax |
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582 | mov ax,word [printerrorat] |
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583 | shl eax,16 |
||
584 | mov ax,[esp+32+4] |
||
585 | sub ax,60 |
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586 | mov edx,1 |
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587 | mov esi,8 |
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588 | mov ebx,0xffffff |
||
589 | whl1: |
||
590 | push ecx |
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591 | and ecx,0xf |
||
592 | add ecx,hexletters |
||
593 | mov edi,1 |
||
594 | |||
595 | mov cl,[ecx] |
||
596 | mov edi,[write_error_to] |
||
597 | mov [edi],cl |
||
598 | dec [write_error_to] |
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599 | |||
600 | pop ecx |
||
601 | shr ecx,4 |
||
602 | sub eax,6*65536 |
||
603 | dec esi |
||
604 | jnz whl1 |
||
605 | |||
606 | popa |
||
607 | ret |
||
608 | |||
609 | iglobal |
||
610 | hexletters db '0123456789ABCDEF' |
||
611 | |||
612 | error_interrupt dd -1 |
||
613 | error_interrupt_entry dd -1 |
||
614 | |||
615 | printerrorat dd 300 |
||
616 | |||
617 | process_error db 'K : Process - forced terminate INT: 00000000',13,10,0 |
||
618 | process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0 |
||
619 | process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0 |
||
620 | system_error db 'K : Kernel error',13,10,0 |
||
621 | endg |
||
622 | |||
623 | uglobal |
||
624 | write_error_to dd 0x0 |
||
625 | endg |
||
626 | |||
627 | show_error_parameters: |
||
628 | |||
629 | mov [write_error_to],process_pid+43 |
||
630 | mov eax,[0x3000] |
||
631 | shl eax, 5 |
||
632 | mov eax,[0x3000+4+eax] |
||
633 | call writehex |
||
634 | |||
635 | mov [write_error_to],process_error+43 |
||
636 | mov eax,[error_interrupt] |
||
637 | call writehex |
||
638 | |||
639 | mov eax,[0x3000] |
||
640 | shl eax,8 |
||
641 | cmp [0x80000+eax+0xB0],dword 0 |
||
642 | jnz .system_error |
||
643 | |||
644 | mov eax,[0x3000] |
||
645 | imul eax,tss_step |
||
646 | mov eax,[eax+tss_data+l.eip-tss_sceleton] |
||
647 | .out_eip: |
||
648 | mov [write_error_to],process_eip+43 |
||
649 | call writehex |
||
650 | |||
651 | mov esi,process_error |
||
652 | call sys_msg_board_str |
||
653 | |||
654 | mov esi,process_pid |
||
655 | call sys_msg_board_str |
||
656 | |||
657 | mov esi,process_eip |
||
658 | call sys_msg_board_str |
||
659 | |||
660 | ret |
||
661 | |||
662 | .system_error: |
||
663 | mov esi,system_error |
||
664 | call sys_msg_board_str |
||
665 | mov eax,[0x3000] |
||
666 | shl eax,7 |
||
667 | mov eax,[eax+0x298000+l.eip-tss_sceleton] |
||
668 | jmp .out_eip |
||
669 | |||
670 | |||
671 | |||
672 | |||
6 | poddubny | 673 | ; irq1 -> hid/keyboard.inc |
1 | ha | 674 | |
675 | p_irq2: |
||
676 | |||
677 | call restore_caller |
||
678 | |||
679 | mov edi,2 ; 1 |
||
680 | call irqhandler ; 2/5 |
||
681 | |||
682 | call return_to_caller |
||
683 | |||
684 | jmp p_irq2 |
||
685 | |||
686 | p_irq3: |
||
687 | |||
688 | call restore_caller |
||
689 | |||
690 | mov edi,3 |
||
691 | call irqhandler |
||
692 | |||
693 | call return_to_caller |
||
694 | |||
695 | jmp p_irq3 |
||
696 | |||
697 | p_irq4: |
||
698 | |||
699 | call restore_caller |
||
700 | |||
701 | mov edi,4 |
||
702 | call irqhandler |
||
703 | |||
704 | call return_to_caller |
||
705 | |||
706 | jmp p_irq4 |
||
707 | |||
708 | p_irq5: |
||
709 | |||
710 | call restore_caller |
||
711 | |||
712 | mov edi,5 |
||
713 | call irqhandler |
||
714 | |||
715 | call return_to_caller |
||
716 | |||
717 | jmp p_irq5 |
||
718 | |||
719 | p_irq6: |
||
720 | |||
721 | call restore_caller |
||
722 | |||
723 | call fdc_irq |
||
724 | |||
725 | mov edi,6 |
||
726 | call irqhandler |
||
727 | |||
728 | call return_to_caller |
||
729 | |||
730 | jmp p_irq6 |
||
731 | |||
732 | p_irq7: |
||
733 | |||
734 | call restore_caller |
||
735 | |||
736 | mov edi,7 |
||
737 | call irqhandler |
||
738 | |||
739 | call return_to_caller |
||
740 | |||
741 | jmp p_irq7 |
||
742 | |||
743 | p_irq8: |
||
744 | |||
745 | call restore_caller |
||
746 | |||
747 | mov edi,8 |
||
748 | call irqhandler |
||
749 | |||
750 | call return_to_caller |
||
751 | |||
752 | jmp p_irq8 |
||
753 | |||
754 | p_irq9: |
||
755 | |||
756 | call restore_caller |
||
757 | |||
758 | mov edi,9 |
||
759 | call irqhandler |
||
760 | |||
761 | call return_to_caller |
||
762 | |||
763 | jmp p_irq9 |
||
764 | |||
765 | p_irq10: |
||
766 | |||
767 | call restore_caller |
||
768 | |||
769 | mov edi,10 |
||
770 | call irqhandler |
||
771 | |||
772 | call return_to_caller |
||
773 | |||
774 | jmp p_irq10 |
||
775 | |||
776 | p_irq11: |
||
777 | |||
778 | call restore_caller |
||
779 | |||
780 | mov edi,11 |
||
781 | call irqhandler |
||
782 | |||
783 | call return_to_caller |
||
784 | |||
785 | jmp p_irq11 |
||
786 | |||
787 | p_irq12: |
||
788 | |||
789 | call restore_caller |
||
790 | |||
791 | mov edi,12 |
||
792 | call irqhandler |
||
793 | |||
794 | call return_to_caller |
||
795 | |||
796 | jmp p_irq12 |
||
797 | |||
6 | poddubny | 798 | irqD: |
799 | call restore_caller |
||
1 | ha | 800 | |
6 | poddubny | 801 | mov dx,0xf0 |
802 | mov al,0 |
||
803 | out dx,al |
||
1 | ha | 804 | |
6 | poddubny | 805 | mov dx,0xa0 |
806 | mov al,0x20 |
||
807 | out dx,al |
||
808 | mov dx,0x20 |
||
809 | out dx,al |
||
1 | ha | 810 | |
811 | call return_to_caller |
||
812 | |||
6 | poddubny | 813 | jmp irqD |
814 | |||
1 | ha | 815 | |
816 | p_irq14: |
||
817 | |||
818 | call restore_caller |
||
819 | |||
820 | mov edi,14 |
||
821 | call irqhandler |
||
822 | |||
823 | call return_to_caller |
||
824 | |||
825 | jmp p_irq14 |
||
826 | |||
827 | p_irq15: |
||
828 | |||
829 | call restore_caller |
||
830 | |||
831 | mov edi,15 |
||
832 | call irqhandler |
||
833 | |||
834 | call return_to_caller |
||
835 | |||
836 | jmp p_irq15 |
||
837 | |||
838 | |||
839 | |||
840 | align 4 |
||
841 | restore_caller: |
||
842 | |||
843 | mov edi,[0x3000] |
||
844 | shl edi, 3 |
||
845 | mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b |
||
846 | |||
847 | ret |
||
848 | |||
849 | align 4 |
||
850 | return_to_caller: |
||
851 | |||
852 | mov ebx,[0x3000] |
||
853 | shl bx,3 |
||
854 | add bx,tss0;t |
||
855 | mov [tss_irq12],bx |
||
856 | |||
857 | db 0xea |
||
858 | dd 0 |
||
859 | tss_irq12 dw tss0;t |
||
860 | |||
861 | ret |
||
862 | |||
863 | uglobal |
||
864 | irqh dd 0x0 |
||
865 | endg |
||
866 | |||
867 | irqhandler: |
||
868 | |||
869 | push edi |
||
870 | |||
871 | mov esi,edi ; 1 |
||
872 | shl esi,6 ; 1 |
||
873 | add esi,irq00read ; 1 |
||
874 | shl edi,12 ; 1 |
||
875 | add edi,0x2E0000 |
||
876 | |||
877 | mov [check_idle_semaphore],5 |
||
878 | |||
879 | irqnewread: |
||
880 | |||
881 | mov dx,[esi] ; 2+ |
||
882 | |||
883 | cmp dx,0 ; 1 |
||
884 | jz irqover |
||
885 | cmp [esi+3],byte 1 ; 2 ; byte read |
||
886 | jne noirqbyte ; 4-11 |
||
887 | |||
888 | in al,dx |
||
889 | |||
890 | mov edx,[edi] |
||
891 | cmp edx,4000 |
||
892 | je irqfull |
||
893 | mov ebx,edi |
||
894 | add ebx,0x10 |
||
895 | add ebx,edx |
||
896 | mov [ebx],al |
||
897 | inc edx |
||
898 | mov [edi],edx |
||
899 | |||
900 | add esi,4 |
||
901 | jmp irqnewread |
||
902 | |||
903 | noirqbyte: |
||
904 | |||
905 | |||
906 | cmp [esi+3],byte 2 ; word read |
||
907 | jne noirqword |
||
908 | |||
909 | in ax,dx |
||
910 | |||
911 | mov edx,[edi] |
||
912 | cmp edx,4000 |
||
913 | je irqfull |
||
914 | mov ebx,edi |
||
915 | add ebx,0x10 |
||
916 | add ebx,edx |
||
917 | mov [ebx],ax |
||
918 | add edx,2 |
||
919 | mov [edi],edx |
||
920 | add esi,4 |
||
921 | jmp irqnewread |
||
922 | |||
923 | noirqword: |
||
924 | irqfull: |
||
925 | irqover: |
||
926 | |||
927 | mov al,0x20 ; ready for next irq |
||
928 | out 0x20,al |
||
929 | |||
930 | pop ebx |
||
931 | cmp ebx,7 |
||
932 | jbe noa0 |
||
933 | out 0xa0,al |
||
934 | noa0: |
||
935 | |||
936 | ret |
||
937 | |||
938 | |||
6 | poddubny | 939 | ; simply return control to interrupted process |
1 | ha | 940 | unknown_interrupt: |
6 | poddubny | 941 | iret |
1 | ha | 942 | |
943 | |||
944 | |||
945 | |||
946 | set_application_table_status: |
||
947 | push eax |
||
948 | |||
949 | mov eax,[0x3000] |
||
950 | ;imul eax,32 |
||
951 | shl eax, 5 |
||
952 | add eax,0x3000+4 |
||
953 | mov eax,[eax] |
||
954 | |||
955 | mov [application_table_status],eax |
||
956 | |||
957 | pop eax |
||
958 | |||
959 | ret |
||
960 | |||
961 | |||
962 | clear_application_table_status: |
||
963 | push eax |
||
964 | |||
965 | mov eax,[0x3000] |
||
966 | ;imul eax,32 |
||
967 | shl eax, 5 |
||
968 | add eax,0x3000+4 |
||
969 | mov eax,[eax] |
||
970 | |||
971 | cmp eax,[application_table_status] |
||
972 | jne apptsl1 |
||
973 | mov [application_table_status],0 |
||
974 | apptsl1: |
||
975 | |||
976 | pop eax |
||
977 | |||
978 | ret |
||
979 | |||
980 | |||
981 | |||
982 | sys_resize_app_memory: |
||
983 | ; eax = 1 - resize |
||
984 | ; ebx = new amount of memory |
||
985 | |||
986 | cmp eax,1 |
||
4 | poddubny | 987 | jne .no_application_mem_resize |
1 | ha | 988 | |
4 | poddubny | 989 | jmp new_mem_resize ;resize for new type of processes |
1 | ha | 990 | |
991 | |||
4 | poddubny | 992 | .no_application_mem_resize: |
1 | ha | 993 | |
994 | ret |
||
995 | |||
996 | |||
997 | |||
998 | get_app_params: |
||
999 | |||
1000 | push eax |
||
1001 | |||
1002 | cmp [0x90000+6],word '00' |
||
1003 | jne no_00_header |
||
1004 | |||
1005 | mov eax,[0x90000+12] |
||
1006 | mov [app_start],eax |
||
1007 | mov eax,[0x90000+16] |
||
1008 | mov [app_i_end],eax |
||
1009 | mov eax,[0x90000+20] |
||
1010 | mov [app_mem],eax |
||
1011 | shr eax,1 |
||
1012 | sub eax,0x10 |
||
1013 | mov [app_esp],eax |
||
1014 | mov eax,[0x90000+24] |
||
1015 | mov [app_i_param],eax |
||
1016 | mov [app_i_icon],dword 0 |
||
1017 | |||
1018 | pop eax |
||
1019 | mov esi,1 |
||
1020 | ret |
||
1021 | |||
1022 | no_00_header: |
||
1023 | |||
1024 | |||
1025 | cmp [0x90000+6],word '01' |
||
1026 | jne no_01_header |
||
1027 | |||
1028 | mov eax,[0x90000+12] |
||
1029 | mov [app_start],eax |
||
1030 | mov eax,[0x90000+16] |
||
1031 | mov [app_i_end],eax |
||
1032 | mov eax,[0x90000+20] |
||
1033 | mov [app_mem],eax |
||
1034 | mov eax,[0x90000+24] |
||
1035 | mov [app_esp],eax |
||
1036 | mov eax,[0x90000+28] |
||
1037 | mov [app_i_param],eax |
||
1038 | mov eax,[0x90000+32] |
||
1039 | mov [app_i_icon],eax |
||
1040 | |||
1041 | pop eax |
||
1042 | mov esi,1 |
||
1043 | ret |
||
1044 | |||
1045 | no_01_header: |
||
1046 | |||
1047 | pop eax |
||
1048 | mov esi,0 |
||
1049 | ret |
||
1050 | |||
1051 | |||
1052 | start_application_fl: |
||
1053 | jmp new_start_application_fl |
||
1054 | |||
1055 | ;************************************************************************ |
||
1056 | |||
1057 | start_application_floppy: |
||
1058 | jmp new_start_application_floppy |
||
1059 | |||
1060 | ;******************************************************************** |
||
1061 | |||
1062 | start_application_hd: |
||
1063 | jmp new_start_application_hd |
||
1064 | |||
1065 | uglobal |
||
1066 | new_process_place dd 0x0 |
||
1067 | app_start dd 0x0 |
||
1068 | app_i_end dd 0x0 |
||
1069 | app_mem dd 0x0 |
||
1070 | app_esp dd 0x0 |
||
1071 | app_i_param dd 0x0 |
||
1072 | app_i_icon dd 0x0 |
||
1073 | app_mem_pos dd 0x0 |
||
5 | halyavin | 1074 | appl_path dd 0x0 |
1075 | appl_path_size dd 0x0 |
||
1 | ha | 1076 | endg |
1077 | |||
1078 | iglobal |
||
1079 | hd_app_string db 'HDAPP ' |
||
1080 | process_loading db 'K : Process - loading ',13,10,0 |
||
1081 | process_running db 'K : Process - done',13,10,0 |
||
1082 | first_gdt_search dd 0x2 |
||
1083 | endg |
||
1084 | |||
1085 | |||
1086 | sys_threads: |
||
1087 | |||
1088 | ; eax=1 create thread |
||
1089 | ; |
||
1090 | ; ebx=thread start |
||
1091 | ; ecx=thread stack value |
||
1092 | ; |
||
1093 | ; on return : eax = pid |
||
1094 | jmp new_sys_threads |
||
1095 | |||
1096 | iglobal |
||
1097 | process_terminating db 'K : Process - terminating',13,10,0 |
||
1098 | process_terminated db 'K : Process - done',13,10,0 |
||
1099 | endg |
||
1100 | |||
1101 | |||
1102 | terminate: ; terminate application |
||
1103 | push esi |
||
1104 | mov esi,process_terminating |
||
1105 | call sys_msg_board_str |
||
1106 | pop esi |
||
1107 | ;start memory manager code |
||
1108 | ; mov eax,esi |
||
1109 | ; call MEM_Heap_Clean |
||
1110 | ;end memory manager code |
||
1111 | |||
1112 | |||
1113 | cli |
||
1114 | cmp [application_table_status],0 |
||
1115 | je term9 |
||
1116 | sti |
||
1117 | call change_task |
||
1118 | jmp terminate |
||
1119 | term9: |
||
1120 | |||
1121 | call set_application_table_status |
||
1122 | |||
1123 | mov eax,esi |
||
1124 | call dispose_app_cr3_table |
||
1125 | |||
1126 | cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1 |
||
1127 | jne fpu_ok_1 |
||
1128 | mov [prev_user_of_fpu],1 |
||
1129 | fpu_ok_1: |
||
1130 | |||
1131 | mov [0xf400],byte 0 ; empty keyboard buffer |
||
1132 | mov [0xf500],byte 0 ; empty button buffer |
||
1133 | |||
1134 | |||
1135 | mov ecx,esi ; remove buttons |
||
1136 | bnewba2: |
||
1137 | mov edi,[0xfe88] |
||
1138 | mov eax,edi |
||
1139 | cld |
||
1140 | movzx ebx,word [edi] |
||
1141 | inc bx |
||
1142 | bnewba: |
||
1143 | dec bx |
||
1144 | jz bnmba |
||
1145 | add eax,0x10 |
||
1146 | cmp cx,[eax] |
||
1147 | jnz bnewba |
||
1148 | pusha |
||
1149 | mov ecx,ebx |
||
1150 | inc ecx |
||
1151 | shl ecx,4 |
||
1152 | mov ebx,eax |
||
1153 | add eax,0x10 |
||
1154 | call memmove |
||
1155 | dec dword [edi] |
||
1156 | popa |
||
1157 | jmp bnewba2 |
||
1158 | bnmba: |
||
1159 | |||
1160 | pusha ; save window coordinates for window restoring |
||
1161 | cld |
||
1162 | shl esi,5 |
||
1163 | add esi,window_data |
||
1164 | mov ax,[esi+0] |
||
1165 | mov word [dlx],ax |
||
1166 | mov bx,[esi+8] |
||
1167 | add ax,bx |
||
1168 | mov word [dlxe],ax |
||
1169 | mov ax,[esi+4] |
||
1170 | mov word [dly],ax |
||
1171 | mov bx,[esi+12] |
||
1172 | add ax,bx |
||
1173 | mov word [dlye],ax |
||
1174 | mov [esi+0],word 0 |
||
1175 | mov [esi+8],word 5 |
||
1176 | mov ax,[0xFE04] |
||
1177 | mov [esi+4],ax |
||
1178 | mov [esi+12],word 5 |
||
1179 | xor eax, eax |
||
1180 | mov [esi+16],eax;dword 0 |
||
1181 | mov [esi+20],eax;dword 0 |
||
1182 | mov [esi+24],eax;dword 0 |
||
1183 | mov [esi+28],eax;dword 0 |
||
1184 | popa |
||
1185 | |||
1186 | pusha |
||
1187 | mov edi,esi |
||
1188 | shl edi,5 |
||
1189 | add edi,window_data |
||
1190 | mov ecx,32/4 |
||
1191 | xor eax, eax |
||
1192 | ; cld |
||
1193 | rep stosd |
||
1194 | |||
1195 | mov eax,[0xFE04] ; set window to start from maxy+1 |
||
1196 | add eax,2 |
||
1197 | |||
1198 | mov edi,esi |
||
1199 | shl edi,5 |
||
1200 | add edi,window_data |
||
1201 | mov [edi+4],eax |
||
1202 | |||
1203 | popa |
||
1204 | |||
1205 | pusha |
||
1206 | mov edi,esi |
||
1207 | shl edi,5 |
||
1208 | add edi,draw_data |
||
1209 | mov ecx,32/4 |
||
1210 | xor eax, eax |
||
1211 | ; cld |
||
1212 | rep stosd |
||
1213 | popa |
||
1214 | |||
1215 | pusha ; at 0x80000+ |
||
1216 | mov edi,esi |
||
1217 | shl edi,8 |
||
1218 | add edi,0x80000 |
||
1219 | mov ecx,256/4 |
||
1220 | xor eax, eax |
||
1221 | ; cld |
||
1222 | rep stosd |
||
1223 | popa |
||
1224 | |||
1225 | pusha ; name to spaces |
||
1226 | mov edi,esi |
||
1227 | shl edi,8 |
||
1228 | add edi,0x80000 |
||
1229 | mov ecx,11 |
||
1230 | mov eax,' ' |
||
1231 | ; cld |
||
1232 | rep stosb |
||
1233 | popa |
||
1234 | |||
1235 | pusha ; C000 --> C400 |
||
1236 | mov eax, 0xc000 |
||
1237 | mov esi, 0 |
||
1238 | nlc40: |
||
1239 | add eax, 2 |
||
1240 | inc esi |
||
1241 | cmp esi, [0x3004] |
||
1242 | jae nlc41 |
||
1243 | movzx ecx, word [eax] |
||
1244 | mov [0xC400 + ecx*2], si |
||
1245 | jmp nlc40 |
||
1246 | nlc41: |
||
1247 | popa |
||
1248 | |||
1249 | pusha ; remove hd1 reservation |
||
1250 | mov edx,esi |
||
1251 | shl edx, 5 ;imul edx,0x20 |
||
1252 | add edx,0x3000 |
||
1253 | mov edx,[edx+4] |
||
1254 | cmp [hd1_status],edx |
||
1255 | jne no_hd1_s_remove |
||
1256 | mov [hd1_status],0 |
||
1257 | no_hd1_s_remove: |
||
1258 | popa |
||
1259 | |||
1260 | pusha ; remove all irq reservations |
||
1261 | mov edx,esi |
||
1262 | shl edx, 5 ;imul edx,0x20 |
||
1263 | add edx,0x3000 |
||
1264 | mov edx,[edx+4] |
||
1265 | mov edi,irq_owner |
||
1266 | mov ecx,16 |
||
1267 | newirqfree: |
||
1268 | cmp [edi],edx |
||
1269 | jne nofreeirq |
||
1270 | mov [edi],dword 0 |
||
1271 | nofreeirq: |
||
1272 | add edi,4 |
||
1273 | loop newirqfree |
||
1274 | popa |
||
1275 | |||
1276 | |||
1277 | pusha ; remove all port reservations |
||
1278 | |||
1279 | mov edx,esi |
||
1280 | shl edx, 5 ;imul edx,0x20 |
||
1281 | add edx,0x3000 |
||
1282 | mov edx,[edx+4] |
||
1283 | |||
1284 | rmpr0: |
||
1285 | |||
1286 | mov esi,[0x2d0000] |
||
1287 | |||
1288 | cmp esi,0 |
||
1289 | je rmpr9 |
||
1290 | |||
1291 | rmpr3: |
||
1292 | |||
1293 | mov edi,esi |
||
1294 | shl edi,4 |
||
1295 | add edi,0x2d0000 |
||
1296 | |||
1297 | cmp edx,[edi] |
||
1298 | je rmpr4 |
||
1299 | |||
1300 | dec esi |
||
1301 | jnz rmpr3 |
||
1302 | |||
1303 | jmp rmpr9 |
||
1304 | |||
1305 | rmpr4: |
||
1306 | |||
1307 | mov ecx,256 |
||
1308 | sub ecx,esi |
||
1309 | shl ecx,4 |
||
1310 | |||
1311 | mov esi,edi |
||
1312 | add esi,16 |
||
1313 | cld |
||
1314 | rep movsb |
||
1315 | |||
1316 | dec dword [0x2d0000] |
||
1317 | |||
1318 | jmp rmpr0 |
||
1319 | |||
1320 | rmpr9: |
||
1321 | |||
1322 | popa |
||
1323 | mov edi,esi ; do not run this process slot |
||
6 | poddubny | 1324 | shl edi, 5 |
1 | ha | 1325 | mov [edi+0x300A],byte 9 |
1326 | ; call systest |
||
1327 | sti ; .. and life goes on |
||
1328 | |||
1329 | ; movzx eax,word [dlx] |
||
1330 | ; movzx ebx,word [dly] |
||
1331 | ; movzx ecx,word [dlxe] |
||
1332 | ; movzx edx,word [dlye] |
||
1333 | call calculatescreen |
||
1334 | |||
1335 | xor eax, eax |
||
1336 | xor esi, esi |
||
1337 | call redrawscreen |
||
1338 | |||
1339 | mov [0xfff4],byte 0 ; no mouse background |
||
1340 | mov [0xfff5],byte 0 ; draw mouse |
||
1341 | |||
1342 | mov [application_table_status],0 |
||
1343 | |||
1344 | mov esi,process_terminated |
||
1345 | call sys_msg_board_str |
||
1346 | |||
1347 | ;* start code - fix error redraw for terminate (2) - Mario79 |
||
1348 | ; cmp [draw_present],1 |
||
1349 | ; je no_draw_background_temp |
||
1350 | ; mov [0xfff0],byte 1 |
||
1351 | ;no_draw_background_temp: |
||
1352 | ; mov [draw_present],0 |
||
1353 | ret |
||
1354 | ;draw_present db 0 |
||
1355 | ;* end code - fix error redraw for terminate (2) - Mario79 |
||
1356 | |||
1357 | iglobal |
||
1358 | boot_sched_1 db 'Building gdt tss pointer',0 |
||
1359 | ;boot_sched_2 db 'Building gdt gate pointer',0 |
||
1360 | boot_sched_3 db 'Building interrupt table - TSS',0 |
||
1361 | boot_sched_3_2 db 'Building interrupt table - GDT',0 |
||
1362 | boot_sched_3_3 db 'Building interrupt table - IDT',0 |
||
1363 | boot_sched_4 db 'Building syscall interrupt table',0 |
||
1364 | endg |
||
1365 | |||
1366 | |||
1367 | build_scheduler: |
||
1368 | |||
1369 | mov esi,boot_sched_1 |
||
1370 | call boot_log |
||
1371 | call build_process_gdt_tss_pointer |
||
1372 | |||
1373 | ; mov esi,boot_sched_2 |
||
1374 | ; call boot_log |
||
1375 | ; call build_process_gdt_gate_pointer |
||
1376 | |||
1377 | mov esi,boot_sched_3 |
||
1378 | call boot_log |
||
1379 | call build_interrupt_table |
||
1380 | |||
1381 | mov esi,boot_sched_4 |
||
1382 | call boot_log |
||
1383 | call build_syscall_interrupt_table |
||
1384 | |||
1385 | ret |
||
1386 |