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Rev | Author | Line No. | Line |
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164 | serge | 1 | |
2 | proc alloc_page |
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3 | |||
4 | |||
5 | cli |
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6 | mov ebx, [page_start] |
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7 | mov ecx, [page_end] |
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8 | .l1: |
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9 | bsf eax,[ebx]; |
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10 | jnz .found |
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11 | add ebx,4 |
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12 | cmp ebx, ecx |
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13 | jb .l1 |
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14 | popfd |
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15 | xor eax,eax |
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16 | ret |
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17 | .found: |
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18 | btr [ebx], eax |
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19 | mov [page_start],ebx |
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20 | sub ebx, sys_pgmap |
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21 | lea eax, [eax+ebx*8] |
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254 | serge | 22 | shl eax, 12 |
164 | serge | 23 | dec [pg_data.pages_free] |
24 | popfd |
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25 | ret |
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26 | endp |
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27 | |||
28 | |||
29 | proc alloc_pages stdcall, count:dword |
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30 | pushfd |
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31 | cli |
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32 | mov eax, [count] |
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33 | add eax, 7 |
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34 | shr eax, 3 |
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35 | mov [count], eax |
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36 | cmp eax, [pg_data.pages_free] |
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37 | ja .fail |
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38 | |||
39 | |||
40 | mov ebx, [page_end] |
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41 | .find: |
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42 | mov edx, [count] |
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43 | mov edi, ecx |
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44 | .match: |
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45 | cmp byte [ecx], 0xFF |
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46 | jne .next |
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47 | dec edx |
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48 | jz .ok |
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49 | inc ecx |
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50 | cmp ecx,ebx |
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51 | jb .match |
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52 | .fail: xor eax, eax |
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53 | popfd |
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54 | ret |
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55 | .next: |
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56 | inc ecx |
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57 | cmp ecx, ebx |
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58 | jb .find |
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59 | popfd |
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60 | xor eax, eax |
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61 | ret |
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62 | .ok: |
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63 | sub ecx, edi |
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64 | inc ecx |
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65 | mov esi, edi |
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66 | xor eax, eax |
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67 | rep stosb |
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68 | sub esi, sys_pgmap |
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69 | shl esi, 3+12 |
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70 | mov eax, esi |
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71 | mov ebx, [count] |
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72 | shl ebx, 3 |
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73 | sub [pg_data.pages_free], ebx |
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74 | popfd |
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75 | ret |
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76 | endp |
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77 | |||
78 | |||
79 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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80 | push ebx |
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321 | diamond | 81 | mov eax, [phis_addr] |
164 | serge | 82 | and eax, not 0xFFF |
83 | or eax, [flags] |
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84 | mov ebx, [lin_addr] |
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85 | shr ebx, 12 |
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86 | mov [page_tabs+ebx*4], eax |
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365 | serge | 87 | mov eax, [lin_addr] |
164 | serge | 88 | invlpg [eax] |
89 | pop ebx |
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321 | diamond | 90 | ret |
164 | serge | 91 | endp |
92 | |||
93 | |||
94 | map_space: ;not implemented |
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281 | serge | 95 | |
96 | |||
97 | |||
98 | |||
99 | |||
100 | |||
101 | proc free_page |
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164 | serge | 102 | ;arg: eax page address |
103 | pushfd |
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104 | cli |
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105 | shr eax, 12 ;page index |
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106 | mov ebx, sys_pgmap |
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107 | bts [ebx], eax ;that's all! |
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108 | cmc |
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291 | serge | 109 | adc [pg_data.pages_free], 0 |
328 | serge | 110 | shr eax, 3 |
164 | serge | 111 | and eax, not 3 ;dword offset from page_map |
112 | add eax, ebx |
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113 | cmp [page_start], eax |
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114 | ja @f |
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115 | popfd |
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116 | ret |
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117 | @@: |
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118 | mov [page_start], eax |
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119 | popfd |
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120 | ret |
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121 | endp |
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122 | |||
123 | |||
279 | serge | 124 | ; eax= page base + page flags |
328 | serge | 125 | ; ebx= liear address |
281 | serge | 126 | ; ecx= count |
127 | |||
128 | |||
129 | commit_pages: |
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328 | serge | 130 | |
281 | serge | 131 | |
328 | serge | 132 | jz .fail |
133 | |||
281 | serge | 134 | |
328 | serge | 135 | mov ebx, pg_data.pg_mutex |
136 | call wait_mutex ;ebx |
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137 | |||
138 | |||
139 | mov ebx, edi |
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140 | shr ebx, 12 |
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141 | @@: |
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142 | mov [page_tabs+ebx*4], eax |
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365 | serge | 143 | invlpg [edi] |
328 | serge | 144 | add edi, edx |
145 | add eax, edx |
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146 | inc ebx |
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147 | dec ecx |
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148 | jnz @B |
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149 | mov [pg_data.pg_mutex],ecx |
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150 | .fail: |
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151 | ret |
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281 | serge | 152 | |
153 | |||
328 | serge | 154 | |
281 | serge | 155 | ; eax= base |
279 | serge | 156 | ; ecx= count |
281 | serge | 157 | |
279 | serge | 158 | |
164 | serge | 159 | release_pages: |
279 | serge | 160 | |
321 | diamond | 161 | |
162 | mov ebx, pg_data.pg_mutex |
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279 | serge | 163 | call wait_mutex ;ebx |
164 | |||
165 | |||
166 | mov edi, eax |
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167 | |||
168 | |||
169 | add esi, page_tabs |
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365 | serge | 170 | |
328 | serge | 171 | |
172 | mov ebx, [page_start] |
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279 | serge | 173 | mov edx, sys_pgmap |
174 | @@: |
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175 | xor eax, eax |
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176 | xchg eax, [esi] |
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177 | invlpg [edi] |
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178 | |||
179 | |||
180 | jz .next |
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181 | |||
182 | |||
183 | bts [edx], eax |
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184 | cmc |
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291 | serge | 185 | adc ebp, 0 |
328 | serge | 186 | shr eax, 3 |
279 | serge | 187 | and eax, -4 |
188 | add eax, edx |
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189 | cmp eax, ebx |
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190 | jae .next |
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191 | |||
192 | |||
193 | .next: |
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194 | add edi, 0x1000 |
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195 | add esi, 4 |
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196 | dec ecx |
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197 | jnz @B |
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198 | mov [pg_data.pages_free], ebp |
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328 | serge | 199 | and [pg_data.pg_mutex],0 |
279 | serge | 200 | popad |
321 | diamond | 201 | ret |
279 | serge | 202 | |
203 | |||
204 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 205 | push ebx |
321 | diamond | 206 | mov ebx, [lin_addr] |
164 | serge | 207 | shr ebx, 22 |
208 | mov eax, [phis_addr] |
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209 | and eax, not 0xFFF |
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210 | or eax, PG_UW ;+PG_NOCACHE |
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211 | mov dword [master_tab+ebx*4], eax |
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378 | serge | 212 | mov eax, [lin_addr] |
164 | serge | 213 | shr eax, 10 |
214 | add eax, page_tabs |
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365 | serge | 215 | invlpg [eax] |
164 | serge | 216 | pop ebx |
321 | diamond | 217 | ret |
164 | serge | 218 | endp |
219 | |||
220 | |||
221 | proc init_LFB |
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222 | locals |
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378 | serge | 223 | pg_count dd ? |
224 | endl |
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225 | |||
226 | |||
164 | serge | 227 | jne @f |
228 | mov [BOOT_VAR+0x901c],byte 2 |
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388 | serge | 229 | stdcall kernel_alloc, 0x280000 |
164 | serge | 230 | mov [LFBAddress], eax |
231 | ret |
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232 | @@: |
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233 | test [SCR_MODE],word 0100000000000000b |
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234 | jnz @f |
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211 | serge | 235 | mov [BOOT_VAR+0x901c],byte 2 |
388 | serge | 236 | ret |
211 | serge | 237 | @@: |
238 | mov edx, LFB_BASE |
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378 | serge | 239 | mov esi, [LFBAddress] |
240 | mov edi, 0x00800000 |
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388 | serge | 241 | mov dword [exp_lfb+4], edx |
379 | serge | 242 | |
214 | serge | 243 | |
388 | serge | 244 | push edx |
245 | mov edx, 0x400 ;bocsh |
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246 | mov al,0xff ;bocsh |
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247 | out dx, al ;bocsh |
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248 | pop edx |
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249 | pop eax |
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250 | |||
251 | |||
164 | serge | 252 | mov [pg_count], edi |
253 | shr edi, 10 |
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254 | |||
255 | |||
256 | jnc .map_page_tables |
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257 | or esi, PG_LARGE+PG_UW |
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258 | shr edx, 20 |
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378 | serge | 259 | mov ecx, edx |
260 | @@: |
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164 | serge | 261 | mov [sys_pgdir+edx], esi |
378 | serge | 262 | add edx, 4 |
263 | add esi, 0x00400000 |
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164 | serge | 264 | dec edi |
265 | jnz @B |
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266 | |||
267 | |||
207 | serge | 268 | jnc @F |
269 | or dword [sys_pgdir+ecx], PG_GLOBAL |
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164 | serge | 270 | @@: |
207 | serge | 271 | mov dword [LFBAddress], LFB_BASE |
378 | serge | 272 | mov eax, cr3 ;flush TLB |
164 | serge | 273 | mov cr3, eax |
274 | ret |
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275 | |||
276 | |||
277 | |||
278 | |||
279 | call alloc_page |
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280 | stdcall map_page_table, edx, eax |
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378 | serge | 281 | add edx, 0x00400000 |
388 | serge | 282 | dec edi |
164 | serge | 283 | jnz @B |
284 | |||
285 | |||
286 | mov edi, page_tabs + (LFB_BASE shr 10) |
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378 | serge | 287 | or eax, PG_UW |
164 | serge | 288 | mov ecx, [pg_count] |
289 | cld |
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378 | serge | 290 | @@: |
388 | serge | 291 | stosd |
292 | add eax, 0x1000 |
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293 | dec ecx |
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294 | jnz @B |
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295 | |||
164 | serge | 296 | |
378 | serge | 297 | mov eax, cr3 ;flush TLB |
164 | serge | 298 | mov cr3, eax |
299 | |||
300 | |||
301 | endp |
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302 | |||
303 | |||
304 | proc new_mem_resize stdcall, new_size:dword |
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305 | |||
306 | |||
276 | serge | 307 | call wait_mutex ;ebx |
308 | |||
164 | serge | 309 | |
310 | add edi,4095 |
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311 | and edi,not 4095 |
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312 | mov [new_size], edi |
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313 | |||
314 | |||
315 | shl edx,8 |
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316 | cmp [SLOT_BASE+APPDATA.heap_base+edx],0 |
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380 | serge | 317 | jne .exit |
172 | serge | 318 | |
319 | |||
380 | serge | 320 | add esi, 4095 |
164 | serge | 321 | and esi, not 4095 |
322 | |||
323 | |||
324 | jae .expand |
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325 | |||
326 | |||
327 | shr esi, 12 |
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328 | @@: |
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329 | mov eax, [app_page_tabs+edi*4] |
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378 | serge | 330 | test eax, 1 |
164 | serge | 331 | jz .next |
332 | mov dword [app_page_tabs+edi*4], 2 |
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378 | serge | 333 | mov ebx, edi |
164 | serge | 334 | shl ebx, 12 |
335 | invlpg [ebx+std_application_base_address] |
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336 | call free_page |
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337 | |||
338 | |||
339 | cmp edi, esi |
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340 | jb @B |
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341 | |||
342 | |||
343 | mov ebx, [new_size] |
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294 | diamond | 344 | call update_mem_size |
345 | |||
164 | serge | 346 | |
347 | dec [pg_data.pg_mutex] |
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348 | ret |
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349 | |||
350 | |||
351 | add edi, new_app_base |
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352 | add esi, new_app_base |
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353 | |||
354 | |||
355 | push edi |
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356 | |||
357 | |||
358 | and edi, not(0x3FFFFF) |
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359 | add esi, 0x3FFFFF |
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360 | and esi, not(0x3FFFFF) |
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361 | |||
362 | |||
363 | jae .grow |
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364 | |||
365 | |||
366 | |||
367 | |||
368 | call alloc_page |
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369 | test eax, eax |
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370 | jz .exit |
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371 | |||
372 | |||
188 | serge | 373 | |
164 | serge | 374 | |
375 | shr edi, 10 |
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376 | add edi, page_tabs |
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365 | serge | 377 | mov ecx, 1024 |
164 | serge | 378 | xor eax, eax |
379 | cld |
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380 | rep stosd |
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381 | pop edi |
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382 | |||
383 | |||
384 | cmp edi, esi |
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385 | jb @B |
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386 | .grow: |
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387 | pop edi |
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388 | pop esi |
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389 | @@: |
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390 | call alloc_page |
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391 | test eax, eax |
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392 | jz .exit |
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393 | stdcall map_page,esi,eax,dword PG_UW |
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394 | |||
395 | |||
396 | mov edi, esi |
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397 | xor eax, eax |
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398 | mov ecx, 1024 |
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399 | cld |
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400 | rep stosd |
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401 | pop edi |
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402 | |||
403 | |||
404 | cmp esi, edi |
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405 | jb @B |
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294 | diamond | 406 | |
164 | serge | 407 | |
408 | .exit: |
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409 | xor eax, eax |
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410 | inc eax |
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411 | dec [pg_data.pg_mutex] |
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412 | ret |
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413 | endp |
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414 | |||
415 | |||
294 | diamond | 416 | ; in: edx = slot shl 8 |
417 | ; ebx = new memory size |
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418 | ; destroys eax,ecx,edx |
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419 | |||
420 | |||
380 | serge | 421 | ;search threads and update |
294 | diamond | 422 | ;application memory size infomation |
423 | mov ecx,[SLOT_BASE+APPDATA.dir_table+edx] |
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380 | serge | 424 | mov eax,2 |
294 | diamond | 425 | |
426 | |||
427 | ;eax = current slot |
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428 | ;ebx = new memory size |
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429 | ;ecx = page directory |
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430 | cmp eax,[TASK_COUNT] |
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431 | jg .search_threads_end |
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432 | mov edx,eax |
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433 | shl edx,5 |
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434 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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435 | jz .search_threads_next |
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436 | shl edx,3 |
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437 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
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380 | serge | 438 | jnz .search_threads_next |
294 | diamond | 439 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
380 | serge | 440 | .search_threads_next: |
294 | diamond | 441 | inc eax |
442 | jmp .search_threads |
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443 | .search_threads_end: |
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444 | ret |
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445 | |||
446 | |||
285 | serge | 447 | ; eax= linear address |
448 | ; |
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449 | ; retval |
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450 | ; eax= phisical page address |
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451 | |||
452 | |||
164 | serge | 453 | get_pg_addr: |
285 | serge | 454 | shr eax, 12 |
455 | mov eax, [page_tabs+eax*4] |
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365 | serge | 456 | and eax, 0xFFFFF000 |
164 | serge | 457 | ret |
458 | |||
459 | |||
188 | serge | 460 | proc page_fault_handler |
164 | serge | 461 | pushad |
462 | |||
463 | |||
388 | serge | 464 | push edx |
465 | mov edx, 0x400 ;bocsh |
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466 | mov al,0xff ;bocsh |
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467 | out dx, al ;bocsh |
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468 | pop edx |
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469 | pop eax |
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470 | |||
471 | |||
164 | serge | 472 | mov eax, cr2 |
473 | push eax |
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172 | serge | 474 | push ds |
164 | serge | 475 | push es |
188 | serge | 476 | |
164 | serge | 477 | |
478 | mov ds, ax |
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479 | mov es, ax |
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188 | serge | 480 | |
164 | serge | 481 | |
188 | serge | 482 | |
483 | |||
164 | serge | 484 | |
485 | |||
378 | serge | 486 | jae .user_space |
164 | serge | 487 | |
488 | |||
378 | serge | 489 | jae .alloc |
188 | serge | 490 | |
491 | |||
378 | serge | 492 | jae .tab_space |
164 | serge | 493 | |
494 | |||
378 | serge | 495 | jae .lfb_addr |
496 | |||
497 | |||
164 | serge | 498 | |
499 | |||
500 | shr ebx, 12 |
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501 | mov ecx, ebx |
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172 | serge | 502 | shr ecx, 10 |
503 | mov edx, [master_tab+ecx*4] |
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504 | test edx, 1 |
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505 | jz .fail |
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506 | |||
507 | |||
365 | serge | 508 | test eax, 2 |
164 | serge | 509 | jz .fail |
172 | serge | 510 | .alloc: |
188 | serge | 511 | call alloc_page |
164 | serge | 512 | and eax, eax |
513 | jz .exit |
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514 | |||
515 | |||
516 | |||
517 | |||
188 | serge | 518 | and edi, 0xFFFFF000 |
519 | mov ecx, 1024 |
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164 | serge | 520 | xor eax, eax |
521 | cld |
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188 | serge | 522 | rep stosd |
523 | .exit: |
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164 | serge | 524 | pop es |
188 | serge | 525 | pop ds |
164 | serge | 526 | mov esp, ebp |
527 | popad |
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528 | add esp, 4 |
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529 | iretd |
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530 | .fail: |
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172 | serge | 531 | pop es |
188 | serge | 532 | pop ds |
172 | serge | 533 | mov esp, ebp |
534 | popad |
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535 | add esp, 4 |
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536 | iretd |
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388 | serge | 537 | |
164 | serge | 538 | |
172 | serge | 539 | |
540 | |||
541 | jmp exc_c |
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542 | iretd |
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543 | |||
544 | |||
164 | serge | 545 | ; shr ebx, 12 |
188 | serge | 546 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 547 | ; shr ebx, 10 |
188 | serge | 548 | ; mov eax, [master_tab+ebx*4] |
549 | jmp .exit |
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550 | .old_addr: |
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164 | serge | 551 | ; shr ebx, 12 |
188 | serge | 552 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 553 | ; shr ebx, 10 |
188 | serge | 554 | ; mov eax, [master_tab+ebx*4] |
555 | jmp .exit |
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556 | .lfb_addr: |
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164 | serge | 557 | ; shr ebx, 22 |
188 | serge | 558 | ; ;mov ecx, [sys_page_dir] |
559 | ; mov eax, [master_tab+ebx*4] |
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560 | jmp .exit |
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561 | .tab_space: |
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164 | serge | 562 | ; shr ebx, 12 |
188 | serge | 563 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 564 | ; shr ebx, 10 |
188 | serge | 565 | ; ;mov ecx, [sys_page_dir] |
566 | ; mov eax, [master_tab+ebx*4] |
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567 | jmp .exit |
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568 | endp |
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164 | serge | 569 | |
570 | |||
571 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
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572 | ofs:dword,buf_size:dword |
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573 | mov eax, [buf_size] |
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574 | test eax, eax |
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575 | jz .exit |
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576 | |||
577 | |||
578 | and eax, 0xFFFFF000 |
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579 | |||
580 | |||
581 | mov ebx, [ofs] |
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582 | shr ebx, 22 |
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583 | mov esi, [ipc_pdir] |
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584 | mov edi, [ipc_ptab] |
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585 | mov eax, [esi+ebx*4] |
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586 | and eax, 0xFFFFF000 |
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587 | test eax, eax |
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588 | jz .exit |
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589 | stdcall map_page,edi,eax,dword PG_UW |
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590 | ; inc ebx |
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591 | ; add edi, 0x1000 |
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592 | ; mov eax, [esi+ebx*4] |
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593 | ; test eax, eax |
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594 | ; jz @f |
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595 | ; and eax, 0xFFFFF000 |
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596 | ; stdcall map_page, edi, eax |
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597 | |||
598 | |||
599 | and edi, 0xFFFFF000 |
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600 | mov ecx, [buf_size] |
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601 | add ecx, 4095 |
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602 | shr ecx, 12 |
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603 | inc ecx |
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604 | |||
605 | |||
606 | shr edx, 12 |
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607 | and edx, 0x3FF |
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608 | mov esi, [ipc_ptab] |
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609 | |||
610 | |||
611 | and eax, 0xFFFFF000 |
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612 | test eax, eax |
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613 | jz .exit |
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614 | stdcall map_page,edi,eax,dword PG_UW |
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615 | add edi, 0x1000 |
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616 | inc edx |
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617 | dec ecx |
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618 | jnz .map |
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619 | |||
620 | |||
621 | ret |
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622 | endp |
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623 | |||
624 | |||
625 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
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626 | ofs:dword,buf_size:dword |
||
627 | mov eax, [buf_size] |
||
628 | test eax, eax |
||
629 | jz .exit |
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630 | |||
631 | |||
632 | and eax, 0xFFFFF000 |
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633 | |||
634 | |||
635 | mov ebx, [ofs] |
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636 | shr ebx, 22 |
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637 | mov esi, [proc_mem_pdir] |
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638 | mov edi, [proc_mem_tab] |
||
639 | mov eax, [esi+ebx*4] |
||
640 | and eax, 0xFFFFF000 |
||
641 | test eax, eax |
||
642 | jz .exit |
||
643 | stdcall map_page,edi,eax,dword PG_UW |
||
644 | |||
645 | |||
646 | and edi, 0xFFFFF000 |
||
647 | mov ecx, [buf_size] |
||
648 | add ecx, 4095 |
||
649 | shr ecx, 12 |
||
650 | inc ecx |
||
651 | |||
652 | |||
653 | shr edx, 12 |
||
654 | and edx, 0x3FF |
||
655 | mov esi, [proc_mem_tab] |
||
656 | |||
657 | |||
658 | ; and eax, 0xFFFFF000 |
||
659 | ; test eax, eax |
||
660 | ; jz .exit |
||
661 | stdcall map_page,edi,eax,dword PG_UW |
||
662 | add edi, 0x1000 |
||
663 | inc edx |
||
664 | dec ecx |
||
665 | jnz .map |
||
666 | .exit: |
||
667 | ret |
||
668 | endp |
||
669 | |||
670 | |||
671 | |||
672 | |||
673 | |||
674 | ;input: |
||
675 | ; eax=1 - set ipc buffer area |
||
676 | ; ebx=address of buffer |
||
677 | ; ecx=size of buffer |
||
678 | ; eax=2 - send message |
||
679 | ; ebx=PID |
||
680 | ; ecx=address of message |
||
681 | ; edx=size of message |
||
682 | |||
683 | |||
684 | jne @f |
||
685 | call set_ipc_buff |
||
686 | mov [esp+36], eax |
||
687 | ret |
||
688 | @@: |
||
689 | cmp eax, 2 |
||
690 | jne @f |
||
691 | stdcall sys_ipc_send, ebx, ecx, edx |
||
692 | mov [esp+36], eax |
||
693 | ret |
||
694 | @@: |
||
695 | xor eax, eax |
||
696 | not eax |
||
697 | mov [esp+36], eax |
||
698 | ret |
||
699 | |||
700 | |||
701 | proc set_ipc_buff |
||
702 | |||
703 | |||
704 | shl eax,8 |
||
705 | add eax, SLOT_BASE |
||
380 | serge | 706 | pushf |
164 | serge | 707 | cli |
708 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
709 | mov [eax+0xA4],ecx |
||
710 | |||
711 | |||
712 | add ecx, ebx |
||
713 | add ecx, 4095 |
||
714 | and ecx, not 4095 |
||
715 | |||
716 | |||
717 | add ebx, 0x1000 |
||
718 | cmp ebx, ecx |
||
719 | jna .touch |
||
720 | |||
721 | |||
722 | xor eax, eax |
||
723 | ret |
||
724 | endp |
||
725 | |||
726 | |||
727 | locals |
||
728 | dst_slot dd ? |
||
729 | dst_offset dd ? |
||
730 | buf_size dd ? |
||
731 | endl |
||
732 | |||
733 | |||
734 | cli |
||
735 | |||
736 | |||
737 | call pid_to_slot |
||
738 | test eax,eax |
||
739 | jz .no_pid |
||
740 | |||
741 | |||
742 | shl eax,8 |
||
743 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
||
380 | serge | 744 | test edi,edi |
164 | serge | 745 | jz .no_ipc_area |
746 | |||
747 | |||
748 | add edi, new_app_base |
||
749 | and ebx, 0xFFF |
||
750 | mov [dst_offset], ebx |
||
751 | |||
752 | |||
380 | serge | 753 | mov [buf_size], esi |
164 | serge | 754 | |
755 | |||
380 | serge | 756 | edi, esi |
164 | serge | 757 | |
758 | |||
759 | add edi, [ipc_tmp] |
||
760 | cmp dword [edi], 0 |
||
761 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
762 | |||
227 | serge | 763 | |
164 | serge | 764 | mov edx, ebx |
765 | add ebx, 8 |
||
766 | add ebx, [msg_size] |
||
767 | cmp ebx, [buf_size] |
||
768 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
769 | |||
227 | serge | 770 | |
164 | serge | 771 | mov eax,[TASK_BASE] |
772 | mov eax, [eax+0x04] ;eax - our PID |
||
773 | mov edi, [dst_offset] |
||
774 | add edi, [ipc_tmp] |
||
775 | add edi, edx |
||
776 | mov [edi], eax |
||
777 | mov ecx, [msg_size] |
||
778 | |||
779 | |||
780 | add edi, 8 |
||
781 | mov esi, [msg_addr] |
||
782 | add esi, new_app_base |
||
783 | cld |
||
784 | rep movsb |
||
785 | |||
786 | |||
787 | mov edx, ebx |
||
788 | shr ebx, 12 |
||
789 | xor eax, eax |
||
790 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 791 | invlpg [edx] |
164 | serge | 792 | |
793 | |||
794 | mov edx, ebx |
||
795 | shr ebx, 12 |
||
796 | xor eax, eax |
||
797 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 798 | invlpg [edx] |
164 | serge | 799 | |
800 | |||
801 | mov edx, ebx |
||
802 | shr ebx, 12 |
||
803 | xor eax, eax |
||
804 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 805 | invlpg [edx] |
164 | serge | 806 | |
807 | |||
808 | shl eax, 8 |
||
809 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
||
380 | serge | 810 | cmp dword [check_idle_semaphore],20 |
164 | serge | 811 | jge .ipc_no_cis |
812 | |||
813 | |||
814 | .ipc_no_cis: |
||
815 | popf |
||
816 | xor eax, eax |
||
817 | ret |
||
818 | .no_pid: |
||
819 | popf |
||
820 | mov eax, 4 |
||
821 | ret |
||
822 | .no_ipc_area: |
||
823 | popf |
||
824 | xor eax, eax |
||
825 | inc eax |
||
826 | ret |
||
827 | .ipc_blocked: |
||
828 | popf |
||
829 | mov eax, 2 |
||
830 | ret |
||
831 | .buffer_overflow: |
||
832 | popf |
||
833 | mov eax, 3 |
||
834 | ret |
||
835 | endp |
||
836 | |||
837 | |||
838 | sysfn_meminfo: |
||
170 | serge | 839 | |
164 | serge | 840 | |
170 | serge | 841 | cmp ebx, new_app_base |
172 | serge | 842 | jb .fail |
843 | |||
844 | |||
164 | serge | 845 | mov [ebx], eax |
170 | serge | 846 | shl eax, 12 |
172 | serge | 847 | mov [esp+36], eax |
848 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 849 | mov [ebx+4], ecx |
850 | mov edx, [pg_data.pages_faults] |
||
851 | mov [ebx+8], edx |
||
852 | mov esi, [heap_size] |
||
853 | mov [ebx+12], esi |
||
854 | mov edi, [heap_free] |
||
855 | mov [ebx+16], edi |
||
856 | mov eax, [heap_blocks] |
||
857 | mov [ebx+20], eax |
||
858 | mov ecx, [free_blocks] |
||
859 | mov [ebx+24], ecx |
||
860 | ret |
||
164 | serge | 861 | .fail: |
172 | serge | 862 | mov dword [esp+36], -1 |
863 | ret |
||
864 | |||
164 | serge | 865 | |
866 | new_services: |
||
867 | |||
868 | |||
869 | jle sys_sheduler |
||
870 | |||
871 | |||
170 | serge | 872 | jb .fail |
164 | serge | 873 | ja @f |
874 | |||
875 | |||
188 | serge | 876 | mov [esp+36], eax |
164 | serge | 877 | ret |
878 | @@: |
||
879 | cmp eax, 12 |
||
880 | ja @f |
||
881 | |||
882 | |||
883 | mov [esp+36], eax |
||
884 | ret |
||
885 | @@: |
||
886 | cmp eax, 13 |
||
887 | ja @f |
||
888 | add ebx, new_app_base |
||
188 | serge | 889 | stdcall user_free, ebx |
164 | serge | 890 | mov [esp+36], eax |
891 | ret |
||
892 | @@: |
||
893 | cmp eax, 14 |
||
894 | ja @f |
||
895 | add ebx, new_app_base |
||
227 | serge | 896 | cmp ebx, new_app_base |
172 | serge | 897 | jb .fail |
898 | stdcall get_event_ex, ebx, ecx |
||
227 | serge | 899 | mov [esp+36], eax |
900 | ret |
||
164 | serge | 901 | @@: |
902 | cmp eax, 15 |
||
903 | ja @f |
||
904 | mov ecx, [CURRENT_TASK] |
||
905 | shl ecx, 8 |
||
906 | mov eax, [ecx+SLOT_BASE+APPDATA.fpu_handler] |
||
380 | serge | 907 | mov [ecx+SLOT_BASE+APPDATA.fpu_handler], ebx |
908 | mov [esp+36], eax |
||
164 | serge | 909 | ret |
910 | @@: |
||
911 | cmp eax, 16 |
||
912 | ja @f |
||
913 | |||
914 | |||
188 | serge | 915 | jz .fail |
916 | add ebx, new_app_base |
||
164 | serge | 917 | cmp ebx, new_app_base |
172 | serge | 918 | jb .fail |
919 | stdcall get_service, ebx |
||
164 | serge | 920 | mov [esp+36], eax |
921 | ret |
||
922 | @@: |
||
923 | cmp eax, 17 |
||
924 | ja @f |
||
925 | call srv_handlerEx ;ebx |
||
378 | serge | 926 | mov [esp+36], eax |
164 | serge | 927 | ret |
928 | @@: |
||
168 | serge | 929 | cmp eax, 18 |
930 | ja @f |
||
931 | mov ecx, [CURRENT_TASK] |
||
932 | shl ecx, 8 |
||
933 | mov eax, [ecx+SLOT_BASE+APPDATA.sse_handler] |
||
380 | serge | 934 | mov [ecx+SLOT_BASE+APPDATA.sse_handler], ebx |
935 | mov [esp+36], eax |
||
168 | serge | 936 | ret |
937 | @@: |
||
164 | serge | 938 | cmp eax, 19 |
198 | serge | 939 | ja .fail |
227 | serge | 940 | add ebx, new_app_base |
198 | serge | 941 | cmp ebx, new_app_base |
942 | jb .fail |
||
943 | stdcall load_library, ebx |
||
944 | mov [esp+36], eax |
||
945 | ret |
||
946 | |||
227 | serge | 947 | |
164 | serge | 948 | xor eax, eax |
949 | mov [esp+36], eax |
||
950 | ret |
||
951 | |||
952 | |||
953 | proc init_mtrr |
||
954 | |||
955 | |||
388 | serge | 956 | je .exit |
164 | serge | 957 | |
958 | |||
211 | serge | 959 | jnc .exit |
960 | |||
961 | |||
164 | serge | 962 | or eax, 0x60000000 ;disable caching |
963 | mov cr0, eax |
||
964 | wbinvd ;invalidate cache |
||
965 | |||
966 | |||
967 | rdmsr ; |
||
968 | push eax |
||
969 | |||
970 | |||
971 | xor eax, eax |
||
972 | mov ecx, 0x2FF |
||
973 | wrmsr ;disable all MTRR |
||
974 | |||
975 | |||
976 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
977 | xor edx, edx |
||
978 | xor eax, eax |
||
979 | mov ecx, 0x204 |
||
980 | mov ebx, 6 |
||
981 | @@: |
||
982 | wrmsr ;disable unused MTRR |
||
983 | inc ecx |
||
984 | wrmsr |
||
985 | inc ecx |
||
986 | dec ebx |
||
987 | jnz @b |
||
988 | |||
989 | |||
990 | |||
991 | |||
992 | or eax, 0x800 ;set default memtype to UC |
||
993 | and al, 0xF0 |
||
994 | mov ecx, 0x2FF |
||
995 | wrmsr ;and enable MTRR |
||
996 | |||
997 | |||
998 | and eax, not 0x60000000 |
||
999 | mov cr0, eax ; enable caching |
||
1000 | .exit: |
||
1001 | ret |
||
1002 | endp |
||
1003 | |||
1004 | |||
1005 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1006 | |||
1007 | |||
1008 | mov eax, [base] |
||
1009 | or eax, [mem_type] |
||
1010 | mov ecx, [reg] |
||
1011 | lea ecx, [0x200+ecx*2] |
||
1012 | wrmsr |
||
1013 | |||
1014 | |||
1015 | dec ebx |
||
1016 | mov eax, 0xFFFFFFFF |
||
1017 | mov edx, 0x0000000F |
||
1018 | sub eax, ebx |
||
1019 | sbb edx, 0 |
||
1020 | or eax, 0x800 |
||
1021 | inc ecx |
||
1022 | wrmsr |
||
1023 | ret |
||
1024 | endp |
||
1025 | |||
1026 | |||
388 | serge | 1027 | |
172 | serge | 1028 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
388 | serge | 1029 | |
1030 | |||
1031 | jecxz .end |
||
1032 | |||
1033 | |||
1034 | |||
1035 | |||
1036 | mov esi,edi |
||
1037 | xor eax,eax |
||
1038 | repne scasb |
||
1039 | neg ecx ; cx = count - strlen |
||
1040 | add ecx,ebx ; strlen + count - strlen |
||
1041 | |||
1042 | |||
1043 | mov edi,esi |
||
1044 | mov esi,[str2] |
||
1045 | repe cmpsb |
||
1046 | mov al,[esi-1] |
||
1047 | xor ecx,ecx |
||
1048 | |||
1049 | |||
1050 | ja .str2_big |
||
1051 | je .end |
||
1052 | |||
1053 | |||
1054 | sub ecx,2 |
||
1055 | |||
1056 | |||
1057 | not ecx |
||
1058 | .end: |
||
1059 | mov eax,ecx |
||
1060 | ret |
||
1061 | endp |
||
1062 | |||
1063 | |||
1064 | proc stall stdcall, delay:dword |
||
172 | serge | 1065 | push ecx |
1066 | push edx |
||
1067 | push ebx |
||
1068 | push eax |
||
1069 | |||
1070 | |||
1071 | mul [stall_mcs] |
||
1072 | mov ebx, eax ;low |
||
1073 | mov ecx, edx ;high |
||
1074 | rdtsc |
||
1075 | add ebx, eax |
||
1076 | adc ecx,edx |
||
1077 | @@: |
||
1078 | rdtsc |
||
1079 | sub eax, ebx |
||
1080 | sbb edx, ecx |
||
1081 | jb @B |
||
1082 | |||
1083 | |||
1084 | pop ebx |
||
1085 | pop edx |
||
1086 | pop ecx |
||
1087 | ret |
||
1088 | endp |
||
1089 | |||
1090 | |||
164 | serge | 1091 | k_strrchr: |
237 | serge | 1092 | push eax |
1093 | xor eax,eax |
||
1094 | or ecx,-1 |
||
1095 | repne scasb |
||
1096 | add ecx,1 |
||
1097 | neg ecx |
||
1098 | sub edi,1 |
||
1099 | pop eax |
||
1100 | std |
||
1101 | repne scasb |
||
1102 | cld |
||
1103 | add edi,1 |
||
1104 | |||
1105 | |||
1106 | jne @F |
||
1107 | mov eax,edi |
||
1108 | ret |
||
1109 | @@: |
||
1110 | xor eax,eax |
||
1111 | ret |
||
1112 | |||
1113 | |||
1114 | proc k_strncpy stdcall, dest:dword, src:dword, maxlen:dword |
||
1115 | mov eax, [dest] |
||
1116 | mov esi, [src] |
||
1117 | mov ecx, [maxlen] |
||
1118 | test eax, eax |
||
1119 | jz .L9 |
||
1120 | test esi, esi |
||
1121 | jz .L9 |
||
1122 | test ecx, ecx |
||
1123 | jz .L9 |
||
1124 | |||
1125 | |||
1126 | jmp .L1 |
||
1127 | |||
1128 | |||
1129 | .L2: |
||
1130 | mov edx, [esi+eax] |
||
1131 | mov [eax], dl |
||
1132 | test dl, dl |
||
1133 | jz .L7 |
||
1134 | |||
1135 | |||
1136 | test dh, dh |
||
1137 | jz .L6 |
||
1138 | |||
1139 | |||
1140 | mov [eax+2],dl |
||
1141 | test dl, dl |
||
1142 | jz .L5 |
||
1143 | |||
1144 | |||
1145 | test dh, dh |
||
1146 | jz .L4 |
||
1147 | add eax, 4 |
||
1148 | .L1: |
||
1149 | sub ecx, 4 |
||
1150 | jae .L2 |
||
1151 | |||
1152 | |||
1153 | jz .L9 |
||
1154 | |||
1155 | |||
1156 | mov [eax], dl |
||
1157 | test dl, dl |
||
1158 | jz .L3 |
||
1159 | |||
1160 | |||
1161 | dec ecx |
||
1162 | jz .L9 |
||
1163 | |||
1164 | |||
1165 | mov [eax], dl |
||
1166 | test dl, dl |
||
1167 | jz .L3 |
||
1168 | |||
1169 | |||
1170 | dec ecx |
||
1171 | jz .L9 |
||
1172 | |||
1173 | |||
1174 | mov [eax], dl |
||
1175 | test dl, dl |
||
1176 | jz .L3 |
||
1177 | |||
1178 | |||
1179 | jmp .L9 |
||
1180 | |||
1181 | |||
1182 | inc eax |
||
1183 | |||
1184 | |||
1185 | inc eax |
||
1186 | |||
1187 | |||
1188 | inc eax |
||
1189 | .L7: |
||
1190 | add ecx,3 |
||
1191 | jz .L9 |
||
1192 | .L8: |
||
1193 | mov byte [ecx+eax], 0 |
||
1194 | .L3: |
||
1195 | dec ecx |
||
1196 | jnz .L8 |
||
1197 | .L9: |
||
1198 | ret |
||
1199 | endp |
||
1200 | |||
1201 | |||
1202 | |||
1203 | |||
1204 | |||
1205 | |||
1206 | mov eax,[esp+4] |
||
1207 | mov edx, 3 |
||
1208 | |||
1209 | |||
1210 | jz .L1 |
||
1211 | jp .L0 |
||
1212 | |||
1213 | |||
1214 | je .L2 |
||
1215 | |||
1216 | |||
1217 | cmp dh, byte [eax] |
||
1218 | |||
1219 | |||
1220 | |||
1221 | |||
1222 | xor edx, 2 |
||
1223 | |||
1224 | |||
1225 | .L0: |
||
1226 | cmp dh, [eax] |
||
1227 | je .L2 |
||
1228 | |||
1229 | |||
1230 | xor edx, edx |
||
1231 | |||
1232 | |||
1233 | mov ecx, [eax] |
||
1234 | add eax, 4 |
||
1235 | |||
1236 | |||
1237 | add ecx, magic |
||
1238 | |||
1239 | |||
1240 | jnc .L3 |
||
1241 | |||
1242 | |||
1243 | and edx, not magic |
||
1244 | jne .L3 |
||
1245 | |||
1246 | |||
1247 | add eax, 4 |
||
1248 | |||
1249 | |||
1250 | add ecx, magic |
||
1251 | dec edx |
||
1252 | jnc .L3 |
||
1253 | |||
1254 | |||
1255 | and edx, not magic |
||
1256 | jne .L3 |
||
1257 | |||
1258 | |||
1259 | add eax, 4 |
||
1260 | |||
1261 | |||
1262 | add ecx, magic |
||
1263 | |||
1264 | |||
1265 | jnc .L3 |
||
1266 | |||
1267 | |||
1268 | |||
1269 | |||
1270 | jne .L3 |
||
1271 | |||
1272 | |||
1273 | add eax, 4 |
||
1274 | |||
1275 | |||
1276 | add ecx, magic |
||
1277 | |||
1278 | |||
1279 | jnc .L3 |
||
1280 | |||
1281 | |||
1282 | |||
1283 | |||
1284 | je .L1 |
||
1285 | |||
1286 | |||
1287 | sub ecx, magic |
||
1288 | |||
1289 | |||
1290 | jz .L2 |
||
1291 | |||
1292 | |||
1293 | test ch, ch |
||
1294 | jz .L2 |
||
1295 | |||
1296 | |||
1297 | inc eax |
||
1298 | |||
1299 | |||
1300 | jz .L2 |
||
1301 | |||
1302 | |||
1303 | |||
1304 | |||
1305 | sub eax, [esp+4] |
||
1306 | ret |
||
1307 | |||
1308 | |||
1309 | |||
388 | serge | 1310 | |
1311 | push eax |
||
1312 | push edx |
||
1313 | mov edx, 0x400 ;bocsh |
||
1314 | mov al,0xff ;bocsh |
||
1315 | out dx, al ;bocsh |
||
1316 | pop edx |
||
1317 | pop eax |
||
1318 | end if0>> |
||
1319 |