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Rev | Author | Line No. | Line |
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164 | serge | 1 | |
212 | serge | 2 | |
164 | serge | 3 | |
4 | proc mem_test |
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5 | |||
214 | serge | 6 | |
164 | serge | 7 | and eax, not (CR0_CD+CR0_NW) |
212 | serge | 8 | or eax, CR0_CD ;disable caching |
214 | serge | 9 | mov cr0, eax |
164 | serge | 10 | wbinvd ;invalidate cache |
214 | serge | 11 | |
164 | serge | 12 | |
214 | serge | 13 | mov ebx, 'TEST' |
164 | serge | 14 | @@: |
15 | add edi, 0x400000 |
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16 | xchg ebx, dword [edi] |
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17 | cmp dword [edi], 'TEST' |
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18 | xchg ebx, dword [edi] |
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19 | je @b |
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20 | |||
21 | |||
212 | serge | 22 | mov cr0, eax |
164 | serge | 23 | mov eax, edi |
24 | mov [LFBSize], 0x00800000 |
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214 | serge | 25 | ret |
164 | serge | 26 | endp |
27 | |||
28 | |||
29 | proc init_memEx |
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30 | xor eax, eax |
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31 | mov edi, sys_pgdir |
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32 | mov ecx, 2048 |
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33 | rep stosd |
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34 | |||
35 | |||
36 | jnc .no_PSE |
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37 | |||
38 | |||
39 | or ebx, CR4_PSE |
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40 | mov eax, PG_LARGE+PG_SW |
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41 | bt [cpu_caps], CAPS_PGE |
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42 | jnc @F |
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43 | or eax, PG_GLOBAL |
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44 | or ebx, CR4_PGE |
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45 | @@: |
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46 | mov cr4, ebx |
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168 | serge | 47 | |
48 | |||
164 | serge | 49 | add eax, 0x00400000 |
50 | mov dword [sys_pgdir+4], eax |
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51 | add eax, 0x00400000 |
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52 | mov dword [sys_pgdir+8], eax |
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53 | |||
54 | |||
188 | serge | 55 | |
164 | serge | 56 | |
57 | sub ecx, 3 ;4 |
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212 | serge | 58 | mov eax, tmp_page_tab+PG_SW |
164 | serge | 59 | mov edi, sys_pgdir+12 ;16 |
212 | serge | 60 | |
164 | serge | 61 | |
62 | .no_PSE: |
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63 | mov eax, PG_SW |
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64 | mov esi, tmp_page_tab |
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65 | mov ecx, 3072/4; 4096/4 ;0x0 - 0x00FFFFFF |
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212 | serge | 66 | .map_low: |
164 | serge | 67 | mov [esi], eax |
68 | add eax, 0x1000 |
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69 | mov [esi+4], eax |
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70 | add eax, 0x1000 |
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71 | mov [esi+8], eax |
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72 | add eax, 0x1000 |
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73 | mov [esi+12], eax |
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74 | add eax, 0x1000 |
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75 | add esi, 16 |
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76 | dec ecx |
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77 | jnz .map_low ;ядро |
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78 | |||
79 | |||
80 | mov eax, tmp_page_tab+PG_SW |
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81 | mov edi, sys_pgdir |
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82 | |||
83 | |||
84 | |||
85 | |||
86 | add eax, 0x1000 |
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87 | add edi, 4 |
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88 | dec ecx |
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89 | jnz .map_kernel_tabs |
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90 | |||
91 | |||
92 | bt [cpu_caps], CAPS_PSE |
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93 | jc @F |
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94 | add edi, 3072*4 ;4096*4 ;skip low kernel memory |
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212 | serge | 95 | @@: |
164 | serge | 96 | mov ecx, [pg_data.kernel_tables] |
97 | sub ecx, 3 |
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212 | serge | 98 | shl ecx, 10 |
164 | serge | 99 | xor eax, eax |
100 | cld |
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101 | rep stosd |
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102 | |||
103 | |||
188 | serge | 104 | |
105 | |||
164 | serge | 106 | endp |
107 | |||
108 | |||
109 | proc init_page_map |
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110 | mov edi, sys_pgmap |
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111 | mov ecx, 384/4 |
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212 | serge | 112 | xor eax,eax |
164 | serge | 113 | cld |
114 | rep stosd |
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115 | |||
116 | |||
117 | mov ecx, [pg_data.pagemap_size] |
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118 | sub ecx, 384 |
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212 | serge | 119 | shr ecx, 2 |
164 | serge | 120 | rep stosd |
121 | |||
122 | |||
212 | serge | 123 | mov edx, [pg_data.pages_count] |
164 | serge | 124 | mov ecx, [pg_data.kernel_tables] |
125 | bt [cpu_caps], CAPS_PSE |
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126 | jnc @f |
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127 | sub ecx, 3 |
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212 | serge | 128 | @@: |
164 | serge | 129 | sub edx, 3072 |
212 | serge | 130 | sub edx, ecx |
164 | serge | 131 | mov [pg_data.pages_free], edx |
132 | |||
133 | |||
134 | mov ebx, ecx |
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135 | shr ecx, 5 |
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136 | rep stosd |
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137 | |||
138 | |||
139 | mov ecx, ebx |
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140 | and ecx, 31 |
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141 | shl eax, cl |
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142 | stosd |
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143 | |||
144 | |||
212 | serge | 145 | mov ebx, sys_pgmap |
164 | serge | 146 | add ebx, [pg_data.pagemap_size] |
147 | mov [page_end], ebx |
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148 | |||
149 | |||
150 | |||
151 | |||
152 | endp |
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153 | |||
154 | |||
155 | proc alloc_page |
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156 | |||
157 | |||
158 | cli |
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159 | mov ebx, [page_start] |
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160 | mov ecx, [page_end] |
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161 | .l1: |
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162 | bsf eax,[ebx]; |
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163 | jnz .found |
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164 | add ebx,4 |
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165 | cmp ebx, ecx |
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166 | jb .l1 |
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167 | popfd |
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168 | xor eax,eax |
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169 | ret |
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170 | .found: |
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171 | btr [ebx], eax |
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172 | mov [page_start],ebx |
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173 | sub ebx, sys_pgmap |
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174 | lea eax, [eax+ebx*8] |
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254 | serge | 175 | shl eax, 12 |
164 | serge | 176 | dec [pg_data.pages_free] |
177 | popfd |
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178 | ret |
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179 | endp |
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180 | |||
181 | |||
182 | proc alloc_pages stdcall, count:dword |
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183 | pushfd |
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184 | cli |
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185 | mov eax, [count] |
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186 | add eax, 7 |
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187 | shr eax, 3 |
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188 | mov [count], eax |
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189 | cmp eax, [pg_data.pages_free] |
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190 | ja .fail |
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191 | |||
192 | |||
193 | mov ebx, [page_end] |
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194 | .find: |
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195 | mov edx, [count] |
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196 | mov edi, ecx |
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197 | .match: |
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198 | cmp byte [ecx], 0xFF |
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199 | jne .next |
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200 | dec edx |
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201 | jz .ok |
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202 | inc ecx |
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203 | cmp ecx,ebx |
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204 | jb .match |
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205 | .fail: xor eax, eax |
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206 | popfd |
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207 | ret |
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208 | .next: |
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209 | inc ecx |
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210 | cmp ecx, ebx |
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211 | jb .find |
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212 | popfd |
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213 | xor eax, eax |
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214 | ret |
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215 | .ok: |
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216 | sub ecx, edi |
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217 | inc ecx |
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218 | mov esi, edi |
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219 | xor eax, eax |
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220 | rep stosb |
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221 | sub esi, sys_pgmap |
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222 | shl esi, 3+12 |
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223 | mov eax, esi |
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224 | mov ebx, [count] |
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225 | shl ebx, 3 |
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226 | sub [pg_data.pages_free], ebx |
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227 | popfd |
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228 | ret |
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229 | endp |
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230 | |||
231 | |||
232 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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233 | mov eax, [phis_addr] |
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234 | and eax, not 0xFFF |
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235 | or eax, [flags] |
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236 | mov ebx, [lin_addr] |
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237 | shr ebx, 12 |
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238 | mov [pages_tab+ebx*4], eax |
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239 | mov eax, [lin_addr] |
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240 | invlpg [eax] |
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241 | ret |
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242 | endp |
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243 | |||
244 | |||
245 | map_space: ;not implemented |
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281 | serge | 246 | |
247 | |||
248 | |||
249 | |||
250 | |||
251 | |||
252 | proc free_page |
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164 | serge | 253 | ;arg: eax page address |
254 | pushfd |
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255 | cli |
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256 | inc [pg_data.pages_free] |
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257 | shr eax, 12 ;page index |
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258 | mov ebx, sys_pgmap |
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259 | bts [ebx], eax ;that's all! |
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260 | shr eax, 3 |
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261 | and eax, not 3 ;dword offset from page_map |
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262 | add eax, ebx |
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263 | cmp [page_start], eax |
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264 | ja @f |
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265 | popfd |
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266 | ret |
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267 | @@: |
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268 | mov [page_start], eax |
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269 | popfd |
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270 | ret |
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271 | endp |
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272 | |||
273 | |||
279 | serge | 274 | ; eax= page base |
281 | serge | 275 | ; ebx= liear address |
276 | ; ecx= count |
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277 | |||
278 | |||
279 | commit_pages: ;not implemented |
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280 | |||
281 | |||
282 | |||
283 | |||
284 | |||
285 | ; eax= base |
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279 | serge | 286 | ; ecx= count |
281 | serge | 287 | |
279 | serge | 288 | |
164 | serge | 289 | release_pages: |
279 | serge | 290 | |
291 | |||
292 | call wait_mutex ;ebx |
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293 | |||
294 | |||
295 | mov edi, eax |
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296 | |||
297 | |||
298 | add esi, pages_tab |
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299 | |||
300 | |||
301 | mov edx, sys_pgmap |
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302 | @@: |
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303 | xor eax, eax |
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304 | xchg eax, [esi] |
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305 | invlpg [edi] |
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306 | |||
307 | |||
308 | jz .next |
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309 | |||
310 | |||
311 | bts [edx], eax |
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312 | inc [pg_data.pages_free] |
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313 | shr eax, 3 |
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314 | and eax, -4 |
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315 | add eax, edx |
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316 | cmp eax, ebx |
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317 | jae .next |
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318 | |||
319 | |||
320 | .next: |
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321 | add edi, 0x1000 |
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322 | add esi, 4 |
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323 | dec ecx |
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324 | jnz @B |
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325 | |||
326 | |||
327 | ret |
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328 | |||
329 | |||
330 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 331 | mov ebx, [lin_addr] |
164 | serge | 332 | shr ebx, 22 |
333 | mov eax, [phis_addr] |
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334 | and eax, not 0xFFF |
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335 | or eax, PG_UW ;+PG_NOCACHE |
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336 | mov dword [current_pgdir+ebx*4], eax |
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188 | serge | 337 | mov eax, [lin_addr] |
164 | serge | 338 | shr eax, 10 |
339 | add eax, pages_tab |
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340 | invlpg [eax] |
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341 | ret |
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342 | endp |
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343 | |||
344 | |||
345 | proc init_LFB |
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346 | cmp dword [LFBAddress], -1 |
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347 | jne @f |
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348 | mov [0x2f0000+0x901c],byte 2 |
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201 | serge | 349 | stdcall kernel_alloc, 0x280000 |
164 | serge | 350 | mov [LFBAddress], eax |
351 | ret |
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352 | @@: |
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353 | test [SCR_MODE],word 0100000000000000b |
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354 | jnz @f |
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211 | serge | 355 | mov [0x2f0000+0x901c],byte 2 |
356 | ret |
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357 | @@: |
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358 | call map_LFB |
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164 | serge | 359 | ret |
360 | endp |
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361 | |||
362 | |||
363 | proc map_LFB |
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364 | locals |
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365 | pg_count dd ? |
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366 | endl |
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367 | |||
368 | |||
369 | mov esi, [LFBAddress] |
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370 | mov dword [exp_lfb+4], esi |
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214 | serge | 371 | |
372 | |||
164 | serge | 373 | mov [pg_count], edi |
374 | shr edi, 10 |
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375 | |||
376 | |||
377 | jnc .map_page_tables |
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378 | mov ebx, esi |
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379 | or esi, PG_LARGE+PG_UW |
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380 | shr ebx, 20 |
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381 | mov ecx, ebx |
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382 | @@: |
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383 | mov [sys_pgdir+ebx], esi |
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384 | add ebx, 4 |
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385 | add esi, 0x00400000 |
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386 | dec edi |
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387 | jnz @B |
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388 | |||
389 | |||
207 | serge | 390 | jnc @F |
391 | or dword [sys_pgdir+ecx], PG_GLOBAL |
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164 | serge | 392 | @@: |
207 | serge | 393 | mov eax, cr3 ;flush TLB |
164 | serge | 394 | mov cr3, eax |
395 | ret |
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396 | |||
397 | |||
398 | |||
399 | |||
400 | call alloc_page |
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401 | stdcall map_page_table, esi, eax |
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188 | serge | 402 | add esi, 0x00400000 |
164 | serge | 403 | dec edi |
404 | jnz @B |
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405 | |||
406 | |||
407 | mov esi, eax |
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408 | shr esi, 10 |
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409 | add esi, pages_tab |
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410 | or eax, PG_UW |
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411 | mov ecx, [pg_count] |
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412 | shr ecx, 2 |
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413 | .map: |
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414 | mov [esi], eax |
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415 | add eax, 0x1000 |
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416 | mov [esi+4], eax |
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417 | add eax, 0x1000 |
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418 | mov [esi+8], eax |
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419 | add eax, 0x1000 |
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420 | mov [esi+12], eax |
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421 | add eax, 0x1000 |
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422 | add esi, 16 |
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423 | sub ecx, 1 |
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424 | jnz .map |
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425 | |||
426 | |||
427 | mov cr3, eax |
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428 | |||
429 | |||
430 | endp |
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431 | |||
432 | |||
433 | proc new_mem_resize stdcall, new_size:dword |
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434 | |||
435 | |||
276 | serge | 436 | call wait_mutex ;ebx |
437 | |||
164 | serge | 438 | |
439 | add edi,4095 |
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440 | and edi,not 4095 |
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441 | mov [new_size], edi |
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442 | |||
443 | |||
444 | shl edx,8 |
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445 | cmp [PROC_BASE+APPDATA.heap_base+edx],0 |
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172 | serge | 446 | jne .exit |
447 | |||
448 | |||
449 | add esi, 4095 |
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164 | serge | 450 | and esi, not 4095 |
451 | |||
452 | |||
453 | jae .expand |
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454 | |||
455 | |||
456 | shr esi, 12 |
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457 | @@: |
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458 | mov eax, [pages_tab+0x00181000+edi*4] |
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459 | test eax, 1 |
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460 | jz .next |
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461 | mov dword [pages_tab+0x00181000+edi*4], 2 |
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462 | mov ebx, edi |
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463 | shl ebx, 12 |
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464 | invlpg [ebx+std_application_base_address] |
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465 | call free_page |
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466 | |||
467 | |||
468 | cmp edi, esi |
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469 | jb @B |
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470 | |||
471 | |||
472 | |||
473 | |||
474 | mov [PROC_BASE+0x8c+edx],ebx |
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475 | |||
476 | |||
477 | ;application memory size infomation |
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478 | mov ecx,[PROC_BASE+0xb8+edx] |
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479 | mov eax,2 |
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480 | |||
481 | |||
482 | ;eax = current slot |
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483 | ;ebx = new memory size |
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484 | ;ecx = page directory |
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485 | cmp eax,[TASK_COUNT] |
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486 | jg .search_threads_end |
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487 | mov edx,eax |
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488 | shl edx,5 |
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489 | cmp word [CURRENT_TASK+edx+0xa],9 ;if slot empty? |
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490 | jz .search_threads_next |
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491 | shl edx,3 |
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492 | cmp [PROC_BASE+edx+0xb8],ecx ;if it is our thread? |
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493 | jnz .search_threads_next |
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494 | mov [PROC_BASE+edx+0x8c],ebx ;update memory size |
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495 | .search_threads_next: |
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496 | inc eax |
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497 | jmp .search_threads |
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498 | .search_threads_end: |
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499 | xor eax, eax |
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500 | dec [pg_data.pg_mutex] |
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501 | ret |
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502 | |||
503 | |||
504 | add edi, new_app_base |
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505 | add esi, new_app_base |
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506 | |||
507 | |||
508 | push edi |
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509 | |||
510 | |||
511 | and edi, not(0x3FFFFF) |
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512 | add esi, 0x3FFFFF |
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513 | and esi, not(0x3FFFFF) |
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514 | |||
515 | |||
516 | jae .grow |
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517 | |||
518 | |||
519 | |||
520 | |||
521 | call alloc_page |
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522 | test eax, eax |
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523 | jz .exit |
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524 | |||
525 | |||
188 | serge | 526 | |
164 | serge | 527 | |
528 | shr edi, 10 |
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529 | add edi, pages_tab |
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530 | mov ecx, 1024 |
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531 | xor eax, eax |
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532 | cld |
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533 | rep stosd |
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534 | pop edi |
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535 | |||
536 | |||
537 | cmp edi, esi |
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538 | jb @B |
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539 | .grow: |
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540 | pop edi |
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541 | pop esi |
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542 | @@: |
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543 | call alloc_page |
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544 | test eax, eax |
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545 | jz .exit |
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546 | stdcall map_page,esi,eax,dword PG_UW |
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547 | |||
548 | |||
549 | mov edi, esi |
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550 | xor eax, eax |
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551 | mov ecx, 1024 |
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552 | cld |
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553 | rep stosd |
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554 | pop edi |
||
555 | |||
556 | |||
557 | cmp esi, edi |
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558 | jna @B |
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559 | |||
560 | |||
561 | .exit: |
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562 | xor eax, eax |
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563 | inc eax |
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564 | dec [pg_data.pg_mutex] |
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565 | ret |
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566 | endp |
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567 | |||
568 | |||
569 | proc get_pg_addr stdcall, lin_addr:dword |
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570 | mov ebx, [lin_addr] |
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571 | shr ebx, 12 |
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572 | mov eax, [pages_tab+ebx*4] |
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573 | and eax, 0xFFFFF000 |
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574 | ret |
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575 | endp |
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576 | |||
577 | |||
188 | serge | 578 | proc page_fault_handler |
164 | serge | 579 | pushad |
580 | |||
581 | |||
582 | mov eax, cr2 |
||
583 | push eax |
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172 | serge | 584 | push ds |
164 | serge | 585 | push es |
188 | serge | 586 | |
164 | serge | 587 | |
588 | mov ds, ax |
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589 | mov es, ax |
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188 | serge | 590 | |
164 | serge | 591 | |
188 | serge | 592 | |
593 | |||
164 | serge | 594 | |
595 | |||
596 | jae .lfb_addr |
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597 | |||
598 | |||
599 | jae .user_space |
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600 | |||
601 | |||
188 | serge | 602 | jae .alloc |
603 | |||
604 | |||
164 | serge | 605 | jae .tab_space |
606 | |||
607 | |||
608 | |||
609 | |||
610 | shr ebx, 12 |
||
611 | mov ecx, ebx |
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172 | serge | 612 | shr ecx, 10 |
613 | mov edx, [master_tab+ecx*4] |
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614 | test edx, 1 |
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615 | jz .fail |
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616 | |||
617 | |||
164 | serge | 618 | test eax, 2 |
619 | jz .fail |
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172 | serge | 620 | .alloc: |
188 | serge | 621 | call alloc_page |
164 | serge | 622 | and eax, eax |
623 | jz .exit |
||
624 | |||
625 | |||
626 | |||
627 | |||
188 | serge | 628 | and edi, 0xFFFFF000 |
629 | mov ecx, 1024 |
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164 | serge | 630 | xor eax, eax |
631 | cld |
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188 | serge | 632 | rep stosd |
633 | .exit: |
||
164 | serge | 634 | pop es |
188 | serge | 635 | pop ds |
164 | serge | 636 | mov esp, ebp |
637 | popad |
||
638 | add esp, 4 |
||
639 | iretd |
||
640 | .fail: |
||
172 | serge | 641 | pop es |
188 | serge | 642 | pop ds |
172 | serge | 643 | mov esp, ebp |
644 | popad |
||
645 | add esp, 4 |
||
646 | |||
164 | serge | 647 | |
172 | serge | 648 | |
649 | |||
650 | jmp exc_c |
||
651 | iretd |
||
652 | |||
653 | |||
164 | serge | 654 | ; shr ebx, 12 |
188 | serge | 655 | ; mov eax, [pages_tab+ebx*4] |
656 | ; shr ebx, 10 |
||
657 | ; mov eax, [master_tab+ebx*4] |
||
658 | jmp .exit |
||
659 | .old_addr: |
||
164 | serge | 660 | ; shr ebx, 12 |
188 | serge | 661 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 662 | ; shr ebx, 10 |
188 | serge | 663 | ; mov eax, [master_tab+ebx*4] |
664 | jmp .exit |
||
665 | .lfb_addr: |
||
164 | serge | 666 | ; shr ebx, 22 |
188 | serge | 667 | ; ;mov ecx, [sys_page_dir] |
668 | ; mov eax, [master_tab+ebx*4] |
||
669 | jmp .exit |
||
670 | .tab_space: |
||
164 | serge | 671 | ; shr ebx, 12 |
188 | serge | 672 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 673 | ; shr ebx, 10 |
188 | serge | 674 | ; ;mov ecx, [sys_page_dir] |
675 | ; mov eax, [master_tab+ebx*4] |
||
676 | jmp .exit |
||
677 | endp |
||
164 | serge | 678 | |
679 | |||
680 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
681 | ofs:dword,buf_size:dword |
||
682 | mov eax, [buf_size] |
||
683 | test eax, eax |
||
684 | jz .exit |
||
685 | |||
686 | |||
687 | and eax, 0xFFFFF000 |
||
688 | |||
689 | |||
690 | mov ebx, [ofs] |
||
691 | shr ebx, 22 |
||
692 | mov esi, [ipc_pdir] |
||
693 | mov edi, [ipc_ptab] |
||
694 | mov eax, [esi+ebx*4] |
||
695 | and eax, 0xFFFFF000 |
||
696 | test eax, eax |
||
697 | jz .exit |
||
698 | stdcall map_page,edi,eax,dword PG_UW |
||
699 | ; inc ebx |
||
700 | ; add edi, 0x1000 |
||
701 | ; mov eax, [esi+ebx*4] |
||
702 | ; test eax, eax |
||
703 | ; jz @f |
||
704 | ; and eax, 0xFFFFF000 |
||
705 | ; stdcall map_page, edi, eax |
||
706 | |||
707 | |||
708 | and edi, 0xFFFFF000 |
||
709 | mov ecx, [buf_size] |
||
710 | add ecx, 4095 |
||
711 | shr ecx, 12 |
||
712 | inc ecx |
||
713 | |||
714 | |||
715 | shr edx, 12 |
||
716 | and edx, 0x3FF |
||
717 | mov esi, [ipc_ptab] |
||
718 | |||
719 | |||
720 | and eax, 0xFFFFF000 |
||
721 | test eax, eax |
||
722 | jz .exit |
||
723 | stdcall map_page,edi,eax,dword PG_UW |
||
724 | add edi, 0x1000 |
||
725 | inc edx |
||
726 | dec ecx |
||
727 | jnz .map |
||
728 | |||
729 | |||
730 | ret |
||
731 | endp |
||
732 | |||
733 | |||
734 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
735 | ofs:dword,buf_size:dword |
||
736 | mov eax, [buf_size] |
||
737 | test eax, eax |
||
738 | jz .exit |
||
739 | |||
740 | |||
741 | and eax, 0xFFFFF000 |
||
742 | |||
743 | |||
744 | mov ebx, [ofs] |
||
745 | shr ebx, 22 |
||
746 | mov esi, [proc_mem_pdir] |
||
747 | mov edi, [proc_mem_tab] |
||
748 | mov eax, [esi+ebx*4] |
||
749 | and eax, 0xFFFFF000 |
||
750 | test eax, eax |
||
751 | jz .exit |
||
752 | stdcall map_page,edi,eax,dword PG_UW |
||
753 | |||
754 | |||
755 | and edi, 0xFFFFF000 |
||
756 | mov ecx, [buf_size] |
||
757 | add ecx, 4095 |
||
758 | shr ecx, 12 |
||
759 | inc ecx |
||
760 | |||
761 | |||
762 | shr edx, 12 |
||
763 | and edx, 0x3FF |
||
764 | mov esi, [proc_mem_tab] |
||
765 | |||
766 | |||
767 | ; and eax, 0xFFFFF000 |
||
768 | ; test eax, eax |
||
769 | ; jz .exit |
||
770 | stdcall map_page,edi,eax,dword PG_UW |
||
771 | add edi, 0x1000 |
||
772 | inc edx |
||
773 | dec ecx |
||
774 | jnz .map |
||
775 | .exit: |
||
776 | ret |
||
777 | endp |
||
778 | |||
779 | |||
780 | |||
781 | |||
782 | |||
783 | ;input: |
||
784 | ; eax=1 - set ipc buffer area |
||
785 | ; ebx=address of buffer |
||
786 | ; ecx=size of buffer |
||
787 | ; eax=2 - send message |
||
788 | ; ebx=PID |
||
789 | ; ecx=address of message |
||
790 | ; edx=size of message |
||
791 | |||
792 | |||
793 | jne @f |
||
794 | call set_ipc_buff |
||
795 | mov [esp+36], eax |
||
796 | ret |
||
797 | @@: |
||
798 | cmp eax, 2 |
||
799 | jne @f |
||
800 | stdcall sys_ipc_send, ebx, ecx, edx |
||
801 | mov [esp+36], eax |
||
802 | ret |
||
803 | @@: |
||
804 | xor eax, eax |
||
805 | not eax |
||
806 | mov [esp+36], eax |
||
807 | ret |
||
808 | |||
809 | |||
810 | proc set_ipc_buff |
||
811 | |||
812 | |||
813 | shl eax,8 |
||
814 | add eax, PROC_BASE |
||
815 | pushf |
||
816 | cli |
||
817 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
818 | mov [eax+0xA4],ecx |
||
819 | |||
820 | |||
821 | add ecx, ebx |
||
822 | add ecx, 4095 |
||
823 | and ecx, not 4095 |
||
824 | |||
825 | |||
826 | add ebx, 0x1000 |
||
827 | cmp ebx, ecx |
||
828 | jna .touch |
||
829 | |||
830 | |||
831 | xor eax, eax |
||
832 | ret |
||
833 | endp |
||
834 | |||
835 | |||
836 | locals |
||
837 | dst_slot dd ? |
||
838 | dst_offset dd ? |
||
839 | buf_size dd ? |
||
840 | endl |
||
841 | |||
842 | |||
843 | cli |
||
844 | |||
845 | |||
846 | call pid_to_slot |
||
847 | test eax,eax |
||
848 | jz .no_pid |
||
849 | |||
850 | |||
851 | shl eax,8 |
||
852 | mov edi,[eax+PROC_BASE+0xa0] ;is ipc area defined? |
||
853 | test edi,edi |
||
854 | jz .no_ipc_area |
||
855 | |||
856 | |||
857 | add edi, new_app_base |
||
858 | and ebx, 0xFFF |
||
859 | mov [dst_offset], ebx |
||
860 | |||
861 | |||
862 | mov [buf_size], esi |
||
863 | |||
864 | |||
865 | edi, esi |
||
866 | |||
867 | |||
868 | add edi, [ipc_tmp] |
||
869 | cmp dword [edi], 0 |
||
870 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
871 | |||
227 | serge | 872 | |
164 | serge | 873 | mov edx, ebx |
874 | add ebx, 8 |
||
875 | add ebx, [msg_size] |
||
876 | cmp ebx, [buf_size] |
||
877 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
878 | |||
227 | serge | 879 | |
164 | serge | 880 | mov eax,[TASK_BASE] |
881 | mov eax, [eax+0x04] ;eax - our PID |
||
882 | mov edi, [dst_offset] |
||
883 | add edi, [ipc_tmp] |
||
884 | add edi, edx |
||
885 | mov [edi], eax |
||
886 | mov ecx, [msg_size] |
||
887 | |||
888 | |||
889 | add edi, 8 |
||
890 | mov esi, [msg_addr] |
||
891 | add esi, new_app_base |
||
892 | cld |
||
893 | rep movsb |
||
894 | |||
895 | |||
896 | mov edx, ebx |
||
897 | shr ebx, 12 |
||
898 | xor eax, eax |
||
899 | mov [pages_tab+ebx*4], eax |
||
900 | invlpg [edx] |
||
901 | |||
902 | |||
903 | mov edx, ebx |
||
904 | shr ebx, 12 |
||
905 | xor eax, eax |
||
906 | mov [pages_tab+ebx*4], eax |
||
907 | invlpg [edx] |
||
908 | |||
909 | |||
910 | mov edx, ebx |
||
911 | shr ebx, 12 |
||
912 | xor eax, eax |
||
913 | mov [pages_tab+ebx*4], eax |
||
914 | invlpg [edx] |
||
915 | |||
916 | |||
917 | shl eax, 8 |
||
918 | or [eax+PROC_BASE+0xA8],dword 0x40 |
||
919 | cmp dword [check_idle_semaphore],20 |
||
920 | jge .ipc_no_cis |
||
921 | |||
922 | |||
923 | .ipc_no_cis: |
||
924 | popf |
||
925 | xor eax, eax |
||
926 | ret |
||
927 | .no_pid: |
||
928 | popf |
||
929 | mov eax, 4 |
||
930 | ret |
||
931 | .no_ipc_area: |
||
932 | popf |
||
933 | xor eax, eax |
||
934 | inc eax |
||
935 | ret |
||
936 | .ipc_blocked: |
||
937 | popf |
||
938 | mov eax, 2 |
||
939 | ret |
||
940 | .buffer_overflow: |
||
941 | popf |
||
942 | mov eax, 3 |
||
943 | ret |
||
944 | endp |
||
945 | |||
946 | |||
947 | sysfn_meminfo: |
||
170 | serge | 948 | |
164 | serge | 949 | |
170 | serge | 950 | cmp ebx, new_app_base |
172 | serge | 951 | jb .fail |
952 | |||
953 | |||
164 | serge | 954 | mov [ebx], eax |
170 | serge | 955 | shl eax, 12 |
172 | serge | 956 | mov [esp+36], eax |
957 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 958 | mov [ebx+4], ecx |
959 | mov edx, [pg_data.pages_faults] |
||
960 | mov [ebx+8], edx |
||
961 | mov esi, [heap_size] |
||
962 | mov [ebx+12], esi |
||
963 | mov edi, [heap_free] |
||
964 | mov [ebx+16], edi |
||
965 | mov eax, [heap_blocks] |
||
966 | mov [ebx+20], eax |
||
967 | mov ecx, [free_blocks] |
||
968 | mov [ebx+24], ecx |
||
969 | ret |
||
164 | serge | 970 | .fail: |
172 | serge | 971 | mov dword [esp+36], -1 |
972 | ret |
||
973 | |||
164 | serge | 974 | |
975 | new_services: |
||
976 | |||
977 | |||
978 | jle sys_sheduler |
||
979 | |||
980 | |||
170 | serge | 981 | jb .fail |
164 | serge | 982 | ja @f |
983 | |||
984 | |||
188 | serge | 985 | mov [esp+36], eax |
164 | serge | 986 | ret |
987 | @@: |
||
988 | cmp eax, 12 |
||
989 | ja @f |
||
990 | |||
991 | |||
992 | mov [esp+36], eax |
||
993 | ret |
||
994 | @@: |
||
995 | cmp eax, 13 |
||
996 | ja @f |
||
997 | add ebx, new_app_base |
||
188 | serge | 998 | stdcall user_free, ebx |
164 | serge | 999 | mov [esp+36], eax |
1000 | ret |
||
1001 | @@: |
||
1002 | cmp eax, 14 |
||
1003 | ja @f |
||
1004 | add ebx, new_app_base |
||
227 | serge | 1005 | cmp ebx, new_app_base |
172 | serge | 1006 | jb .fail |
1007 | stdcall get_event_ex, ebx, ecx |
||
227 | serge | 1008 | mov [esp+36], eax |
1009 | ret |
||
164 | serge | 1010 | @@: |
1011 | cmp eax, 15 |
||
1012 | ja @f |
||
1013 | mov ecx, [CURRENT_TASK] |
||
1014 | shl ecx, 8 |
||
1015 | mov eax, [ecx+PROC_BASE+APPDATA.fpu_handler] |
||
1016 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], ebx |
||
1017 | mov [esp+36], eax |
||
1018 | ret |
||
1019 | @@: |
||
1020 | cmp eax, 16 |
||
1021 | ja @f |
||
1022 | |||
1023 | |||
188 | serge | 1024 | jz .fail |
1025 | add ebx, new_app_base |
||
164 | serge | 1026 | cmp ebx, new_app_base |
172 | serge | 1027 | jb .fail |
1028 | stdcall get_service, ebx |
||
164 | serge | 1029 | mov [esp+36], eax |
1030 | ret |
||
1031 | @@: |
||
1032 | cmp eax, 17 |
||
1033 | ja @f |
||
1034 | stdcall srv_handlerEx, ebx |
||
1035 | mov [esp+36], eax |
||
1036 | ret |
||
1037 | @@: |
||
168 | serge | 1038 | cmp eax, 18 |
1039 | ja @f |
||
1040 | mov ecx, [CURRENT_TASK] |
||
1041 | shl ecx, 8 |
||
1042 | mov eax, [ecx+PROC_BASE+APPDATA.sse_handler] |
||
1043 | mov [ecx+PROC_BASE+APPDATA.sse_handler], ebx |
||
1044 | mov [esp+36], eax |
||
1045 | ret |
||
1046 | @@: |
||
164 | serge | 1047 | cmp eax, 19 |
198 | serge | 1048 | ja .fail |
227 | serge | 1049 | add ebx, new_app_base |
198 | serge | 1050 | cmp ebx, new_app_base |
1051 | jb .fail |
||
1052 | stdcall load_library, ebx |
||
1053 | mov [esp+36], eax |
||
1054 | ret |
||
1055 | |||
227 | serge | 1056 | |
164 | serge | 1057 | xor eax, eax |
1058 | mov [esp+36], eax |
||
1059 | ret |
||
1060 | |||
1061 | |||
1062 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
||
1063 | |||
1064 | |||
1065 | jecxz .end |
||
1066 | |||
1067 | |||
1068 | |||
1069 | |||
1070 | mov esi,edi |
||
1071 | xor eax,eax |
||
1072 | repne scasb |
||
1073 | neg ecx ; cx = count - strlen |
||
1074 | add ecx,ebx ; strlen + count - strlen |
||
1075 | |||
1076 | |||
1077 | mov edi,esi |
||
1078 | mov esi,[str2] |
||
1079 | repe cmpsb |
||
1080 | mov al,[esi-1] |
||
1081 | xor ecx,ecx |
||
1082 | |||
1083 | |||
1084 | ja .str2_big |
||
1085 | je .end |
||
1086 | |||
1087 | |||
1088 | sub ecx,2 |
||
1089 | |||
1090 | |||
1091 | not ecx |
||
1092 | .end: |
||
1093 | mov eax,ecx |
||
1094 | ret |
||
1095 | endp |
||
1096 | |||
1097 | |||
1098 | proc test_cpu |
||
1099 | locals |
||
1100 | cpu_type dd ? |
||
166 | serge | 1101 | cpu_id dd ? |
1102 | cpu_Intel dd ? |
||
1103 | cpu_AMD dd ? |
||
1104 | endl |
||
164 | serge | 1105 | |
1106 | |||
1107 | xor eax, eax |
||
211 | serge | 1108 | mov [cpu_caps], eax |
1109 | mov [cpu_caps+4], eax |
||
1110 | |||
164 | serge | 1111 | |
1112 | pop eax |
||
1113 | mov ecx, eax |
||
1114 | xor eax, 0x40000 |
||
1115 | push eax |
||
1116 | popfd |
||
1117 | pushfd |
||
1118 | pop eax |
||
1119 | xor eax, ecx |
||
1120 | mov [cpu_type], CPU_386 |
||
1121 | jz .end_cpuid |
||
221 | serge | 1122 | push ecx |
164 | serge | 1123 | popfd |
1124 | |||
1125 | |||
1126 | mov eax, ecx |
||
1127 | xor eax, 0x200000 |
||
1128 | push eax |
||
1129 | popfd |
||
1130 | pushfd |
||
1131 | pop eax |
||
1132 | xor eax, ecx |
||
1133 | je .end_cpuid |
||
221 | serge | 1134 | mov [cpu_id], 1 |
164 | serge | 1135 | |
1136 | |||
1137 | cpuid |
||
1138 | mov [cpu_vendor], ebx |
||
1139 | mov [cpu_vendor+4], edx |
||
1140 | mov [cpu_vendor+8], ecx |
||
1141 | cmp ebx, dword [intel_str] |
||
1142 | jne .check_AMD |
||
1143 | cmp edx, dword [intel_str+4] |
||
1144 | jne .check_AMD |
||
1145 | cmp ecx, dword [intel_str+8] |
||
1146 | jne .check_AMD |
||
1147 | mov [cpu_Intel], 1 |
||
1148 | cmp eax, 1 |
||
1149 | jl .end_cpuid |
||
1150 | mov eax, 1 |
||
1151 | cpuid |
||
1152 | mov [cpu_sign], eax |
||
1153 | mov [cpu_info], ebx |
||
1154 | mov [cpu_caps], edx |
||
1155 | mov [cpu_caps+4],ecx |
||
1156 | |||
1157 | |||
1158 | and eax, 0x0f |
||
1159 | ret |
||
1160 | .end_cpuid: |
||
1161 | mov eax, [cpu_type] |
||
1162 | ret |
||
1163 | |||
1164 | |||
1165 | cmp ebx, dword [AMD_str] |
||
1166 | jne .unknown |
||
221 | serge | 1167 | cmp edx, dword [AMD_str+4] |
164 | serge | 1168 | jne .unknown |
221 | serge | 1169 | cmp ecx, dword [AMD_str+8] |
164 | serge | 1170 | jne .unknown |
221 | serge | 1171 | mov [cpu_AMD], 1 |
164 | serge | 1172 | cmp eax, 1 |
1173 | jl .unknown |
||
221 | serge | 1174 | mov eax, 1 |
164 | serge | 1175 | cpuid |
1176 | mov [cpu_sign], eax |
||
1177 | mov [cpu_info], ebx |
||
1178 | mov [cpu_caps], edx |
||
1179 | mov [cpu_caps+4],ecx |
||
1180 | shr eax, 8 |
||
1181 | and eax, 0x0f |
||
1182 | ret |
||
1183 | .unknown: |
||
221 | serge | 1184 | mov eax, 1 |
1185 | cpuid |
||
1186 | mov [cpu_sign], eax |
||
1187 | mov [cpu_info], ebx |
||
1188 | mov [cpu_caps], edx |
||
1189 | mov [cpu_caps+4],ecx |
||
1190 | shr eax, 8 |
||
1191 | and eax, 0x0f |
||
1192 | ret |
||
1193 | endp |
||
164 | serge | 1194 | |
1195 | |||
1196 | MEM_WC equ 1 ;write combined memory |
||
1197 | MEM_UC equ 0 ;uncached memory |
||
1198 | |||
1199 | |||
1200 | proc init_mtrr |
||
1201 | |||
1202 | |||
1203 | je .exit |
||
1204 | |||
1205 | |||
211 | serge | 1206 | jnc .exit |
1207 | |||
1208 | |||
164 | serge | 1209 | or eax, 0x60000000 ;disable caching |
1210 | mov cr0, eax |
||
1211 | wbinvd ;invalidate cache |
||
1212 | |||
1213 | |||
1214 | rdmsr ; |
||
1215 | push eax |
||
1216 | |||
1217 | |||
1218 | xor eax, eax |
||
1219 | mov ecx, 0x2FF |
||
1220 | wrmsr ;disable all MTRR |
||
1221 | |||
1222 | |||
1223 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1224 | xor edx, edx |
||
1225 | xor eax, eax |
||
1226 | mov ecx, 0x204 |
||
1227 | mov ebx, 6 |
||
1228 | @@: |
||
1229 | wrmsr ;disable unused MTRR |
||
1230 | inc ecx |
||
1231 | wrmsr |
||
1232 | inc ecx |
||
1233 | dec ebx |
||
1234 | jnz @b |
||
1235 | |||
1236 | |||
1237 | |||
1238 | |||
1239 | or eax, 0x800 ;set default memtype to UC |
||
1240 | and al, 0xF0 |
||
1241 | mov ecx, 0x2FF |
||
1242 | wrmsr ;and enable MTRR |
||
1243 | |||
1244 | |||
1245 | and eax, not 0x60000000 |
||
1246 | mov cr0, eax ; enable caching |
||
1247 | .exit: |
||
1248 | ret |
||
1249 | endp |
||
1250 | |||
1251 | |||
1252 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1253 | |||
1254 | |||
1255 | mov eax, [base] |
||
1256 | or eax, [mem_type] |
||
1257 | mov ecx, [reg] |
||
1258 | lea ecx, [0x200+ecx*2] |
||
1259 | wrmsr |
||
1260 | |||
1261 | |||
1262 | dec ebx |
||
1263 | mov eax, 0xFFFFFFFF |
||
1264 | mov edx, 0x0000000F |
||
1265 | sub eax, ebx |
||
1266 | sbb edx, 0 |
||
1267 | or eax, 0x800 |
||
1268 | inc ecx |
||
1269 | wrmsr |
||
1270 | ret |
||
1271 | endp |
||
1272 | |||
1273 | |||
172 | serge | 1274 | proc stall stdcall, delay:dword |
1275 | push ecx |
||
1276 | push edx |
||
1277 | push ebx |
||
1278 | push eax |
||
1279 | |||
1280 | |||
1281 | mul [stall_mcs] |
||
1282 | mov ebx, eax ;low |
||
1283 | mov ecx, edx ;high |
||
1284 | rdtsc |
||
1285 | add ebx, eax |
||
1286 | adc ecx,edx |
||
1287 | @@: |
||
1288 | rdtsc |
||
1289 | sub eax, ebx |
||
1290 | sbb edx, ecx |
||
1291 | jb @B |
||
1292 | |||
1293 | |||
1294 | pop ebx |
||
1295 | pop edx |
||
1296 | pop ecx |
||
1297 | ret |
||
1298 | endp |
||
1299 | |||
1300 | |||
164 | serge | 1301 | align 4 |
1302 | intel_str db "GenuineIntel",0 |
||
1303 | AMD_str db "AuthenticAMD",0 |
||
1304 | endg |
||
1305 | |||
1306 | |||
1307 | align 16 |
||
1308 | irq_tab rd 16 |
||
1309 | |||
1310 | |||
1311 | |||
1312 | |||
1313 | |||
1314 | ipc_pdir rd 1 |
||
1315 | ipc_ptab rd 1 |
||
1316 | |||
1317 | |||
1318 | proc_mem_pdir rd 1 |
||
1319 | proc_mem_tab rd 1 |
||
1320 | |||
1321 | |||
1322 | tmp_task_ptab rd 1 |
||
1323 | tmp_task_data rd 1 |
||
1324 | |||
1325 | |||
1326 | fdd_buff rd 1 |
||
1327 | LFBSize rd 1 |
||
214 | serge | 1328 | |
164 | serge | 1329 | |
172 | serge | 1330 | ;;CPUID information |
164 | serge | 1331 | |
1332 | |||
1333 | cpu_sign rd 1 |
||
1334 | cpu_info rd 1 |
||
1335 | |||
1336 | |||
221 | serge | 1337 | |
1338 | |||
1339 | cur_saved_data rb 4096 |
||
1340 | |||
1341 | |||
276 | serge | 1342 | ;cursor_map rd 2 |
1343 | ;cursor_start rd 1 |
||
1344 | ;cursor_end rd 1 |
||
1345 | |||
221 | serge | 1346 | |
1347 | hw_cursor rd 1 |
||
233 | serge | 1348 | |
221 | serge | 1349 | |
1350 | scr_height rd 1 |
||
1351 | |||
1352 | |||
1353 | cur_saved_base rd 1 |
||
1354 | cur_saved_interl rd 1 |
||
1355 | cur_saved_w rd 1 |
||
1356 | cur_saved_h rd 1 |
||
1357 | |||
1358 | |||
164 | serge | 1359 | |
1360 | |||
1361 | align 16 |
||
1362 | |||
227 | serge | 1363 | |
276 | serge | 1364 | |
1365 | |||
278 | serge | 1366 | ; srv_tab rb 36*32 |
1367 | mem_block_map rb 512 |
||
227 | serge | 1368 | event_map rb 128 |
1369 | mem_block_list rd 64 |
||
1370 | mem_block_mask rd 2 |
||
1371 | |||
1372 | |||
278 | serge | 1373 | ; srv_map rd 1 |
1374 | |||
164 | serge | 1375 | |
278 | serge | 1376 | srv.bk rd 1 |
1377 | |||
1378 | |||
164 | serge | 1379 | mem_block_arr rd 1 |
1380 | mem_block_start rd 1 |
||
1381 | mem_block_end rd 1 |
||
1382 | |||
279 | serge | 1383 | |
1384 | heap_size rd 1 |
||
170 | serge | 1385 | heap_free rd 1 |
1386 | heap_blocks rd 1 |
||
1387 | free_blocks rd 1 |
||
1388 | |||
164 | serge | 1389 | |
1390 | page_end rd 1 |
||
1391 | events rd 1 |
||
227 | serge | 1392 | event_start rd 1 |
1393 | event_end rd 1 |
||
1394 | |||
1395 | |||
164 | serge | 1396 | endg |
1397 | |||
1398 | |||
1399 | |||
1400 | ; push edx |
||
1401 | ; mov edx, 0x400 ;bocsh |
||
1402 | ; mov al,0xff ;bocsh |
||
1403 | ; out dx, al ;bocsh |
||
1404 | ; pop edx |
||
1405 | ; pop eax |
||
1406 | |||
1407 | |||
237 | serge | 1408 | |
1409 | k_strrchr: |
||
1410 | push eax |
||
1411 | xor eax,eax |
||
1412 | or ecx,-1 |
||
1413 | repne scasb |
||
1414 | add ecx,1 |
||
1415 | neg ecx |
||
1416 | sub edi,1 |
||
1417 | pop eax |
||
1418 | std |
||
1419 | repne scasb |
||
1420 | cld |
||
1421 | add edi,1 |
||
1422 | |||
1423 | |||
1424 | jne @F |
||
1425 | mov eax,edi |
||
1426 | ret |
||
1427 | @@: |
||
1428 | xor eax,eax |
||
1429 | ret |
||
1430 | |||
1431 | |||
1432 | proc k_strncpy stdcall, dest:dword, src:dword, maxlen:dword |
||
1433 | mov eax, [dest] |
||
1434 | mov esi, [src] |
||
1435 | mov ecx, [maxlen] |
||
1436 | test eax, eax |
||
1437 | jz .L9 |
||
1438 | test esi, esi |
||
1439 | jz .L9 |
||
1440 | test ecx, ecx |
||
1441 | jz .L9 |
||
1442 | |||
1443 | |||
1444 | jmp .L1 |
||
1445 | |||
1446 | |||
1447 | .L2: |
||
1448 | mov edx, [esi+eax] |
||
1449 | mov [eax], dl |
||
1450 | test dl, dl |
||
1451 | jz .L7 |
||
1452 | |||
1453 | |||
1454 | test dh, dh |
||
1455 | jz .L6 |
||
1456 | |||
1457 | |||
1458 | mov [eax+2],dl |
||
1459 | test dl, dl |
||
1460 | jz .L5 |
||
1461 | |||
1462 | |||
1463 | test dh, dh |
||
1464 | jz .L4 |
||
1465 | add eax, 4 |
||
1466 | .L1: |
||
1467 | sub ecx, 4 |
||
1468 | jae .L2 |
||
1469 | |||
1470 | |||
1471 | jz .L9 |
||
1472 | |||
1473 | |||
1474 | mov [eax], dl |
||
1475 | test dl, dl |
||
1476 | jz .L3 |
||
1477 | |||
1478 | |||
1479 | dec ecx |
||
1480 | jz .L9 |
||
1481 | |||
1482 | |||
1483 | mov [eax], dl |
||
1484 | test dl, dl |
||
1485 | jz .L3 |
||
1486 | |||
1487 | |||
1488 | dec ecx |
||
1489 | jz .L9 |
||
1490 | |||
1491 | |||
1492 | mov [eax], dl |
||
1493 | test dl, dl |
||
1494 | jz .L3 |
||
1495 | |||
1496 | |||
1497 | jmp .L9 |
||
1498 | |||
1499 | |||
1500 | inc eax |
||
1501 | |||
1502 | |||
1503 | inc eax |
||
1504 | |||
1505 | |||
1506 | inc eax |
||
1507 | .L7: |
||
1508 | add ecx,3 |
||
1509 | jz .L9 |
||
1510 | .L8: |
||
1511 | mov byte [ecx+eax], 0 |
||
1512 | .L3: |
||
1513 | dec ecx |
||
1514 | jnz .L8 |
||
1515 | .L9: |
||
1516 | ret |
||
1517 | endp |
||
1518 | |||
1519 | |||
1520 | |||
1521 | |||
1522 | |||
1523 | |||
1524 | mov eax,[esp+4] |
||
1525 | mov edx, 3 |
||
1526 | |||
1527 | |||
1528 | jz .L1 |
||
1529 | jp .L0 |
||
1530 | |||
1531 | |||
1532 | je .L2 |
||
1533 | |||
1534 | |||
1535 | cmp dh, byte [eax] |
||
1536 | |||
1537 | |||
1538 | |||
1539 | |||
1540 | xor edx, 2 |
||
1541 | |||
1542 | |||
1543 | .L0: |
||
1544 | cmp dh, [eax] |
||
1545 | je .L2 |
||
1546 | |||
1547 | |||
1548 | xor edx, edx |
||
1549 | |||
1550 | |||
1551 | mov ecx, [eax] |
||
1552 | add eax, 4 |
||
1553 | |||
1554 | |||
1555 | add ecx, magic |
||
1556 | |||
1557 | |||
1558 | jnc .L3 |
||
1559 | |||
1560 | |||
1561 | and edx, not magic |
||
1562 | jne .L3 |
||
1563 | |||
1564 | |||
1565 | add eax, 4 |
||
1566 | |||
1567 | |||
1568 | add ecx, magic |
||
1569 | dec edx |
||
1570 | jnc .L3 |
||
1571 | |||
1572 | |||
1573 | and edx, not magic |
||
1574 | jne .L3 |
||
1575 | |||
1576 | |||
1577 | add eax, 4 |
||
1578 | |||
1579 | |||
1580 | add ecx, magic |
||
1581 | |||
1582 | |||
1583 | jnc .L3 |
||
1584 | |||
1585 | |||
1586 | |||
1587 | |||
1588 | jne .L3 |
||
1589 | |||
1590 | |||
1591 | add eax, 4 |
||
1592 | |||
1593 | |||
1594 | add ecx, magic |
||
1595 | |||
1596 | |||
1597 | jnc .L3 |
||
1598 | |||
1599 | |||
1600 | |||
1601 | |||
1602 | je .L1 |
||
1603 | |||
1604 | |||
1605 | sub ecx, magic |
||
1606 | |||
1607 | |||
1608 | jz .L2 |
||
1609 | |||
1610 | |||
1611 | test ch, ch |
||
1612 | jz .L2 |
||
1613 | |||
1614 | |||
1615 | inc eax |
||
1616 | |||
1617 | |||
1618 | jz .L2 |
||
1619 | |||
1620 | |||
1621 | |||
1622 | |||
1623 | sub eax, [esp+4] |
||
1624 | ret |
||
1625 | |||
1626 | |||
1627 |