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Rev | Author | Line No. | Line |
---|---|---|---|
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 | push ebx |
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321 | diamond | 234 | mov eax, [phis_addr] |
164 | serge | 235 | and eax, not 0xFFF |
236 | or eax, [flags] |
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237 | mov ebx, [lin_addr] |
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238 | shr ebx, 12 |
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239 | mov [pages_tab+ebx*4], eax |
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240 | mov eax, [lin_addr] |
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241 | invlpg [eax] |
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242 | pop ebx |
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321 | diamond | 243 | ret |
164 | serge | 244 | endp |
245 | |||
246 | |||
247 | map_space: ;not implemented |
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281 | serge | 248 | |
249 | |||
250 | |||
251 | |||
252 | |||
253 | |||
254 | proc free_page |
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164 | serge | 255 | ;arg: eax page address |
256 | pushfd |
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257 | cli |
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258 | shr eax, 12 ;page index |
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259 | mov ebx, sys_pgmap |
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260 | bts [ebx], eax ;that's all! |
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261 | cmc |
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291 | serge | 262 | adc [pg_data.pages_free], 0 |
263 | shr eax, 3 |
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164 | serge | 264 | and eax, not 3 ;dword offset from page_map |
265 | add eax, ebx |
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266 | cmp [page_start], eax |
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267 | ja @f |
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268 | popfd |
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269 | ret |
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270 | @@: |
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271 | mov [page_start], eax |
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272 | popfd |
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273 | ret |
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274 | endp |
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275 | |||
276 | |||
279 | serge | 277 | ; eax= page base |
281 | serge | 278 | ; ebx= liear address |
279 | ; ecx= count |
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280 | |||
281 | |||
282 | commit_pages: ;not implemented |
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283 | |||
284 | |||
285 | |||
286 | |||
287 | |||
288 | ; eax= base |
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279 | serge | 289 | ; ecx= count |
281 | serge | 290 | |
279 | serge | 291 | |
164 | serge | 292 | release_pages: |
279 | serge | 293 | |
321 | diamond | 294 | |
295 | mov ebx, pg_data.pg_mutex |
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279 | serge | 296 | call wait_mutex ;ebx |
297 | |||
298 | |||
299 | mov edi, eax |
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300 | |||
301 | |||
302 | add esi, pages_tab |
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303 | |||
291 | serge | 304 | |
305 | mov ebx, [page_start] |
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279 | serge | 306 | mov edx, sys_pgmap |
307 | @@: |
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308 | xor eax, eax |
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309 | xchg eax, [esi] |
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310 | invlpg [edi] |
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311 | |||
312 | |||
313 | jz .next |
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314 | |||
315 | |||
316 | bts [edx], eax |
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317 | cmc |
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291 | serge | 318 | adc ebp, 0 |
319 | shr eax, 3 |
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279 | serge | 320 | and eax, -4 |
321 | add eax, edx |
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322 | cmp eax, ebx |
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323 | jae .next |
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324 | |||
325 | |||
326 | .next: |
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327 | add edi, 0x1000 |
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328 | add esi, 4 |
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329 | dec ecx |
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330 | jnz @B |
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331 | mov [pg_data.pages_free], ebp |
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291 | serge | 332 | and [pg_data.pg_mutex],0 |
279 | serge | 333 | popad |
321 | diamond | 334 | ret |
279 | serge | 335 | |
336 | |||
337 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 338 | push ebx |
321 | diamond | 339 | mov ebx, [lin_addr] |
164 | serge | 340 | shr ebx, 22 |
341 | mov eax, [phis_addr] |
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342 | and eax, not 0xFFF |
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343 | or eax, PG_UW ;+PG_NOCACHE |
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344 | mov dword [current_pgdir+ebx*4], eax |
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188 | serge | 345 | mov eax, [lin_addr] |
164 | serge | 346 | shr eax, 10 |
347 | add eax, pages_tab |
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348 | invlpg [eax] |
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349 | pop ebx |
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321 | diamond | 350 | ret |
164 | serge | 351 | endp |
352 | |||
353 | |||
354 | proc init_LFB |
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355 | cmp dword [LFBAddress], -1 |
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356 | jne @f |
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357 | mov [0x2f0000+0x901c],byte 2 |
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201 | serge | 358 | stdcall kernel_alloc, 0x280000 |
164 | serge | 359 | mov [LFBAddress], eax |
360 | ret |
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361 | @@: |
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362 | test [SCR_MODE],word 0100000000000000b |
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363 | jnz @f |
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211 | serge | 364 | mov [0x2f0000+0x901c],byte 2 |
365 | ret |
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366 | @@: |
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367 | call map_LFB |
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164 | serge | 368 | ret |
369 | endp |
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370 | |||
371 | |||
372 | proc map_LFB |
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373 | locals |
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374 | pg_count dd ? |
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375 | endl |
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376 | |||
377 | |||
378 | mov esi, [LFBAddress] |
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379 | mov dword [exp_lfb+4], esi |
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214 | serge | 380 | |
381 | |||
164 | serge | 382 | mov [pg_count], edi |
383 | shr edi, 10 |
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384 | |||
385 | |||
386 | jnc .map_page_tables |
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387 | mov ebx, esi |
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388 | or esi, PG_LARGE+PG_UW |
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389 | shr ebx, 20 |
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390 | mov ecx, ebx |
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391 | @@: |
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392 | mov [sys_pgdir+ebx], esi |
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393 | add ebx, 4 |
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394 | add esi, 0x00400000 |
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395 | dec edi |
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396 | jnz @B |
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397 | |||
398 | |||
207 | serge | 399 | jnc @F |
400 | or dword [sys_pgdir+ecx], PG_GLOBAL |
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164 | serge | 401 | @@: |
207 | serge | 402 | mov eax, cr3 ;flush TLB |
164 | serge | 403 | mov cr3, eax |
404 | ret |
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405 | |||
406 | |||
407 | |||
408 | |||
409 | call alloc_page |
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410 | stdcall map_page_table, esi, eax |
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188 | serge | 411 | add esi, 0x00400000 |
164 | serge | 412 | dec edi |
413 | jnz @B |
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414 | |||
415 | |||
416 | mov esi, eax |
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417 | shr esi, 10 |
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418 | add esi, pages_tab |
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419 | or eax, PG_UW |
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420 | mov ecx, [pg_count] |
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421 | shr ecx, 2 |
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422 | .map: |
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423 | mov [esi], eax |
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424 | add eax, 0x1000 |
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425 | mov [esi+4], eax |
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426 | add eax, 0x1000 |
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427 | mov [esi+8], eax |
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428 | add eax, 0x1000 |
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429 | mov [esi+12], eax |
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430 | add eax, 0x1000 |
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431 | add esi, 16 |
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432 | sub ecx, 1 |
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433 | jnz .map |
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434 | |||
435 | |||
436 | mov cr3, eax |
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437 | |||
438 | |||
439 | endp |
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440 | |||
441 | |||
442 | proc new_mem_resize stdcall, new_size:dword |
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443 | |||
444 | |||
276 | serge | 445 | call wait_mutex ;ebx |
446 | |||
164 | serge | 447 | |
448 | add edi,4095 |
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449 | and edi,not 4095 |
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450 | mov [new_size], edi |
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451 | |||
452 | |||
453 | shl edx,8 |
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454 | cmp [PROC_BASE+APPDATA.heap_base+edx],0 |
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172 | serge | 455 | jne .exit |
456 | |||
457 | |||
458 | add esi, 4095 |
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164 | serge | 459 | and esi, not 4095 |
460 | |||
461 | |||
462 | jae .expand |
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463 | |||
464 | |||
465 | shr esi, 12 |
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466 | @@: |
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467 | mov eax, [pages_tab+0x00181000+edi*4] |
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468 | test eax, 1 |
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469 | jz .next |
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470 | mov dword [pages_tab+0x00181000+edi*4], 2 |
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471 | mov ebx, edi |
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472 | shl ebx, 12 |
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473 | invlpg [ebx+std_application_base_address] |
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474 | call free_page |
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475 | |||
476 | |||
477 | cmp edi, esi |
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478 | jb @B |
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479 | |||
480 | |||
481 | mov ebx, [new_size] |
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294 | diamond | 482 | call update_mem_size |
483 | |||
164 | serge | 484 | |
485 | dec [pg_data.pg_mutex] |
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486 | ret |
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487 | |||
488 | |||
489 | add edi, new_app_base |
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490 | add esi, new_app_base |
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491 | |||
492 | |||
493 | push edi |
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494 | |||
495 | |||
496 | and edi, not(0x3FFFFF) |
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497 | add esi, 0x3FFFFF |
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498 | and esi, not(0x3FFFFF) |
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499 | |||
500 | |||
501 | jae .grow |
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502 | |||
503 | |||
504 | |||
505 | |||
506 | call alloc_page |
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507 | test eax, eax |
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508 | jz .exit |
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509 | |||
510 | |||
188 | serge | 511 | |
164 | serge | 512 | |
513 | shr edi, 10 |
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514 | add edi, pages_tab |
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515 | mov ecx, 1024 |
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516 | xor eax, eax |
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517 | cld |
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518 | rep stosd |
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519 | pop edi |
||
520 | |||
521 | |||
522 | cmp edi, esi |
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523 | jb @B |
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524 | .grow: |
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525 | pop edi |
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526 | pop esi |
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527 | @@: |
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528 | call alloc_page |
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529 | test eax, eax |
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530 | jz .exit |
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531 | stdcall map_page,esi,eax,dword PG_UW |
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532 | |||
533 | |||
534 | mov edi, esi |
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535 | xor eax, eax |
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536 | mov ecx, 1024 |
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537 | cld |
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538 | rep stosd |
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539 | pop edi |
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540 | |||
541 | |||
542 | cmp esi, edi |
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543 | jb @B |
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294 | diamond | 544 | |
164 | serge | 545 | |
546 | .exit: |
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547 | xor eax, eax |
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548 | inc eax |
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549 | dec [pg_data.pg_mutex] |
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550 | ret |
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551 | endp |
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552 | |||
553 | |||
294 | diamond | 554 | ; in: edx = slot shl 8 |
555 | ; ebx = new memory size |
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556 | ; destroys eax,ecx,edx |
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557 | |||
558 | |||
559 | ;search threads and update |
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560 | ;application memory size infomation |
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561 | mov ecx,[PROC_BASE+APPDATA.dir_table+edx] |
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562 | mov eax,2 |
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563 | |||
564 | |||
565 | ;eax = current slot |
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566 | ;ebx = new memory size |
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567 | ;ecx = page directory |
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568 | cmp eax,[TASK_COUNT] |
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569 | jg .search_threads_end |
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570 | mov edx,eax |
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571 | shl edx,5 |
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572 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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573 | jz .search_threads_next |
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574 | shl edx,3 |
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575 | cmp [PROC_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
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576 | jnz .search_threads_next |
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577 | mov [PROC_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
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578 | .search_threads_next: |
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579 | inc eax |
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580 | jmp .search_threads |
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581 | .search_threads_end: |
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582 | ret |
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583 | |||
584 | |||
285 | serge | 585 | ; eax= linear address |
586 | ; |
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587 | ; retval |
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588 | ; eax= phisical page address |
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589 | |||
590 | |||
164 | serge | 591 | get_pg_addr: |
285 | serge | 592 | shr eax, 12 |
593 | mov eax, [pages_tab+eax*4] |
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594 | and eax, 0xFFFFF000 |
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164 | serge | 595 | ret |
596 | |||
597 | |||
188 | serge | 598 | proc page_fault_handler |
164 | serge | 599 | pushad |
600 | |||
601 | |||
602 | mov eax, cr2 |
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603 | push eax |
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172 | serge | 604 | push ds |
164 | serge | 605 | push es |
188 | serge | 606 | |
164 | serge | 607 | |
608 | mov ds, ax |
||
609 | mov es, ax |
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188 | serge | 610 | |
164 | serge | 611 | |
188 | serge | 612 | |
613 | |||
164 | serge | 614 | |
615 | |||
616 | jae .lfb_addr |
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617 | |||
618 | |||
619 | jae .user_space |
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620 | |||
621 | |||
188 | serge | 622 | jae .alloc |
623 | |||
624 | |||
164 | serge | 625 | jae .tab_space |
626 | |||
627 | |||
628 | |||
629 | |||
630 | shr ebx, 12 |
||
631 | mov ecx, ebx |
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172 | serge | 632 | shr ecx, 10 |
633 | mov edx, [master_tab+ecx*4] |
||
634 | test edx, 1 |
||
635 | jz .fail |
||
636 | |||
637 | |||
164 | serge | 638 | test eax, 2 |
639 | jz .fail |
||
172 | serge | 640 | .alloc: |
188 | serge | 641 | call alloc_page |
164 | serge | 642 | and eax, eax |
643 | jz .exit |
||
644 | |||
645 | |||
646 | |||
647 | |||
188 | serge | 648 | and edi, 0xFFFFF000 |
649 | mov ecx, 1024 |
||
164 | serge | 650 | xor eax, eax |
651 | cld |
||
188 | serge | 652 | rep stosd |
653 | .exit: |
||
164 | serge | 654 | pop es |
188 | serge | 655 | pop ds |
164 | serge | 656 | mov esp, ebp |
657 | popad |
||
658 | add esp, 4 |
||
659 | iretd |
||
660 | .fail: |
||
172 | serge | 661 | pop es |
188 | serge | 662 | pop ds |
172 | serge | 663 | mov esp, ebp |
664 | popad |
||
665 | add esp, 4 |
||
666 | |||
164 | serge | 667 | |
172 | serge | 668 | |
669 | |||
670 | jmp exc_c |
||
671 | iretd |
||
672 | |||
673 | |||
164 | serge | 674 | ; shr ebx, 12 |
188 | serge | 675 | ; mov eax, [pages_tab+ebx*4] |
676 | ; shr ebx, 10 |
||
677 | ; mov eax, [master_tab+ebx*4] |
||
678 | jmp .exit |
||
679 | .old_addr: |
||
164 | serge | 680 | ; shr ebx, 12 |
188 | serge | 681 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 682 | ; shr ebx, 10 |
188 | serge | 683 | ; mov eax, [master_tab+ebx*4] |
684 | jmp .exit |
||
685 | .lfb_addr: |
||
164 | serge | 686 | ; shr ebx, 22 |
188 | serge | 687 | ; ;mov ecx, [sys_page_dir] |
688 | ; mov eax, [master_tab+ebx*4] |
||
689 | jmp .exit |
||
690 | .tab_space: |
||
164 | serge | 691 | ; shr ebx, 12 |
188 | serge | 692 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 693 | ; shr ebx, 10 |
188 | serge | 694 | ; ;mov ecx, [sys_page_dir] |
695 | ; mov eax, [master_tab+ebx*4] |
||
696 | jmp .exit |
||
697 | endp |
||
164 | serge | 698 | |
699 | |||
700 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
701 | ofs:dword,buf_size:dword |
||
702 | mov eax, [buf_size] |
||
703 | test eax, eax |
||
704 | jz .exit |
||
705 | |||
706 | |||
707 | and eax, 0xFFFFF000 |
||
708 | |||
709 | |||
710 | mov ebx, [ofs] |
||
711 | shr ebx, 22 |
||
712 | mov esi, [ipc_pdir] |
||
713 | mov edi, [ipc_ptab] |
||
714 | mov eax, [esi+ebx*4] |
||
715 | and eax, 0xFFFFF000 |
||
716 | test eax, eax |
||
717 | jz .exit |
||
718 | stdcall map_page,edi,eax,dword PG_UW |
||
719 | ; inc ebx |
||
720 | ; add edi, 0x1000 |
||
721 | ; mov eax, [esi+ebx*4] |
||
722 | ; test eax, eax |
||
723 | ; jz @f |
||
724 | ; and eax, 0xFFFFF000 |
||
725 | ; stdcall map_page, edi, eax |
||
726 | |||
727 | |||
728 | and edi, 0xFFFFF000 |
||
729 | mov ecx, [buf_size] |
||
730 | add ecx, 4095 |
||
731 | shr ecx, 12 |
||
732 | inc ecx |
||
733 | |||
734 | |||
735 | shr edx, 12 |
||
736 | and edx, 0x3FF |
||
737 | mov esi, [ipc_ptab] |
||
738 | |||
739 | |||
740 | and eax, 0xFFFFF000 |
||
741 | test eax, eax |
||
742 | jz .exit |
||
743 | stdcall map_page,edi,eax,dword PG_UW |
||
744 | add edi, 0x1000 |
||
745 | inc edx |
||
746 | dec ecx |
||
747 | jnz .map |
||
748 | |||
749 | |||
750 | ret |
||
751 | endp |
||
752 | |||
753 | |||
754 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
755 | ofs:dword,buf_size:dword |
||
756 | mov eax, [buf_size] |
||
757 | test eax, eax |
||
758 | jz .exit |
||
759 | |||
760 | |||
761 | and eax, 0xFFFFF000 |
||
762 | |||
763 | |||
764 | mov ebx, [ofs] |
||
765 | shr ebx, 22 |
||
766 | mov esi, [proc_mem_pdir] |
||
767 | mov edi, [proc_mem_tab] |
||
768 | mov eax, [esi+ebx*4] |
||
769 | and eax, 0xFFFFF000 |
||
770 | test eax, eax |
||
771 | jz .exit |
||
772 | stdcall map_page,edi,eax,dword PG_UW |
||
773 | |||
774 | |||
775 | and edi, 0xFFFFF000 |
||
776 | mov ecx, [buf_size] |
||
777 | add ecx, 4095 |
||
778 | shr ecx, 12 |
||
779 | inc ecx |
||
780 | |||
781 | |||
782 | shr edx, 12 |
||
783 | and edx, 0x3FF |
||
784 | mov esi, [proc_mem_tab] |
||
785 | |||
786 | |||
787 | ; and eax, 0xFFFFF000 |
||
788 | ; test eax, eax |
||
789 | ; jz .exit |
||
790 | stdcall map_page,edi,eax,dword PG_UW |
||
791 | add edi, 0x1000 |
||
792 | inc edx |
||
793 | dec ecx |
||
794 | jnz .map |
||
795 | .exit: |
||
796 | ret |
||
797 | endp |
||
798 | |||
799 | |||
800 | |||
801 | |||
802 | |||
803 | ;input: |
||
804 | ; eax=1 - set ipc buffer area |
||
805 | ; ebx=address of buffer |
||
806 | ; ecx=size of buffer |
||
807 | ; eax=2 - send message |
||
808 | ; ebx=PID |
||
809 | ; ecx=address of message |
||
810 | ; edx=size of message |
||
811 | |||
812 | |||
813 | jne @f |
||
814 | call set_ipc_buff |
||
815 | mov [esp+36], eax |
||
816 | ret |
||
817 | @@: |
||
818 | cmp eax, 2 |
||
819 | jne @f |
||
820 | stdcall sys_ipc_send, ebx, ecx, edx |
||
821 | mov [esp+36], eax |
||
822 | ret |
||
823 | @@: |
||
824 | xor eax, eax |
||
825 | not eax |
||
826 | mov [esp+36], eax |
||
827 | ret |
||
828 | |||
829 | |||
830 | proc set_ipc_buff |
||
831 | |||
832 | |||
833 | shl eax,8 |
||
834 | add eax, PROC_BASE |
||
835 | pushf |
||
836 | cli |
||
837 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
838 | mov [eax+0xA4],ecx |
||
839 | |||
840 | |||
841 | add ecx, ebx |
||
842 | add ecx, 4095 |
||
843 | and ecx, not 4095 |
||
844 | |||
845 | |||
846 | add ebx, 0x1000 |
||
847 | cmp ebx, ecx |
||
848 | jna .touch |
||
849 | |||
850 | |||
851 | xor eax, eax |
||
852 | ret |
||
853 | endp |
||
854 | |||
855 | |||
856 | locals |
||
857 | dst_slot dd ? |
||
858 | dst_offset dd ? |
||
859 | buf_size dd ? |
||
860 | endl |
||
861 | |||
862 | |||
863 | cli |
||
864 | |||
865 | |||
866 | call pid_to_slot |
||
867 | test eax,eax |
||
868 | jz .no_pid |
||
869 | |||
870 | |||
871 | shl eax,8 |
||
872 | mov edi,[eax+PROC_BASE+0xa0] ;is ipc area defined? |
||
873 | test edi,edi |
||
874 | jz .no_ipc_area |
||
875 | |||
876 | |||
877 | add edi, new_app_base |
||
878 | and ebx, 0xFFF |
||
879 | mov [dst_offset], ebx |
||
880 | |||
881 | |||
882 | mov [buf_size], esi |
||
883 | |||
884 | |||
885 | edi, esi |
||
886 | |||
887 | |||
888 | add edi, [ipc_tmp] |
||
889 | cmp dword [edi], 0 |
||
890 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
891 | |||
227 | serge | 892 | |
164 | serge | 893 | mov edx, ebx |
894 | add ebx, 8 |
||
895 | add ebx, [msg_size] |
||
896 | cmp ebx, [buf_size] |
||
897 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
898 | |||
227 | serge | 899 | |
164 | serge | 900 | mov eax,[TASK_BASE] |
901 | mov eax, [eax+0x04] ;eax - our PID |
||
902 | mov edi, [dst_offset] |
||
903 | add edi, [ipc_tmp] |
||
904 | add edi, edx |
||
905 | mov [edi], eax |
||
906 | mov ecx, [msg_size] |
||
907 | |||
908 | |||
909 | add edi, 8 |
||
910 | mov esi, [msg_addr] |
||
911 | add esi, new_app_base |
||
912 | cld |
||
913 | rep movsb |
||
914 | |||
915 | |||
916 | mov edx, ebx |
||
917 | shr ebx, 12 |
||
918 | xor eax, eax |
||
919 | mov [pages_tab+ebx*4], eax |
||
920 | invlpg [edx] |
||
921 | |||
922 | |||
923 | mov edx, ebx |
||
924 | shr ebx, 12 |
||
925 | xor eax, eax |
||
926 | mov [pages_tab+ebx*4], eax |
||
927 | invlpg [edx] |
||
928 | |||
929 | |||
930 | mov edx, ebx |
||
931 | shr ebx, 12 |
||
932 | xor eax, eax |
||
933 | mov [pages_tab+ebx*4], eax |
||
934 | invlpg [edx] |
||
935 | |||
936 | |||
937 | shl eax, 8 |
||
938 | or [eax+PROC_BASE+0xA8],dword 0x40 |
||
939 | cmp dword [check_idle_semaphore],20 |
||
940 | jge .ipc_no_cis |
||
941 | |||
942 | |||
943 | .ipc_no_cis: |
||
944 | popf |
||
945 | xor eax, eax |
||
946 | ret |
||
947 | .no_pid: |
||
948 | popf |
||
949 | mov eax, 4 |
||
950 | ret |
||
951 | .no_ipc_area: |
||
952 | popf |
||
953 | xor eax, eax |
||
954 | inc eax |
||
955 | ret |
||
956 | .ipc_blocked: |
||
957 | popf |
||
958 | mov eax, 2 |
||
959 | ret |
||
960 | .buffer_overflow: |
||
961 | popf |
||
962 | mov eax, 3 |
||
963 | ret |
||
964 | endp |
||
965 | |||
966 | |||
967 | sysfn_meminfo: |
||
170 | serge | 968 | |
164 | serge | 969 | |
170 | serge | 970 | cmp ebx, new_app_base |
172 | serge | 971 | jb .fail |
972 | |||
973 | |||
164 | serge | 974 | mov [ebx], eax |
170 | serge | 975 | shl eax, 12 |
172 | serge | 976 | mov [esp+36], eax |
977 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 978 | mov [ebx+4], ecx |
979 | mov edx, [pg_data.pages_faults] |
||
980 | mov [ebx+8], edx |
||
981 | mov esi, [heap_size] |
||
982 | mov [ebx+12], esi |
||
983 | mov edi, [heap_free] |
||
984 | mov [ebx+16], edi |
||
985 | mov eax, [heap_blocks] |
||
986 | mov [ebx+20], eax |
||
987 | mov ecx, [free_blocks] |
||
988 | mov [ebx+24], ecx |
||
989 | ret |
||
164 | serge | 990 | .fail: |
172 | serge | 991 | mov dword [esp+36], -1 |
992 | ret |
||
993 | |||
164 | serge | 994 | |
995 | new_services: |
||
996 | |||
997 | |||
998 | jle sys_sheduler |
||
999 | |||
1000 | |||
170 | serge | 1001 | jb .fail |
164 | serge | 1002 | ja @f |
1003 | |||
1004 | |||
188 | serge | 1005 | mov [esp+36], eax |
164 | serge | 1006 | ret |
1007 | @@: |
||
1008 | cmp eax, 12 |
||
1009 | ja @f |
||
1010 | |||
1011 | |||
1012 | mov [esp+36], eax |
||
1013 | ret |
||
1014 | @@: |
||
1015 | cmp eax, 13 |
||
1016 | ja @f |
||
1017 | add ebx, new_app_base |
||
188 | serge | 1018 | stdcall user_free, ebx |
164 | serge | 1019 | mov [esp+36], eax |
1020 | ret |
||
1021 | @@: |
||
1022 | cmp eax, 14 |
||
1023 | ja @f |
||
1024 | add ebx, new_app_base |
||
227 | serge | 1025 | cmp ebx, new_app_base |
172 | serge | 1026 | jb .fail |
1027 | stdcall get_event_ex, ebx, ecx |
||
227 | serge | 1028 | mov [esp+36], eax |
1029 | ret |
||
164 | serge | 1030 | @@: |
1031 | cmp eax, 15 |
||
1032 | ja @f |
||
1033 | mov ecx, [CURRENT_TASK] |
||
1034 | shl ecx, 8 |
||
1035 | mov eax, [ecx+PROC_BASE+APPDATA.fpu_handler] |
||
1036 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], ebx |
||
1037 | mov [esp+36], eax |
||
1038 | ret |
||
1039 | @@: |
||
1040 | cmp eax, 16 |
||
1041 | ja @f |
||
1042 | |||
1043 | |||
188 | serge | 1044 | jz .fail |
1045 | add ebx, new_app_base |
||
164 | serge | 1046 | cmp ebx, new_app_base |
172 | serge | 1047 | jb .fail |
1048 | stdcall get_service, ebx |
||
164 | serge | 1049 | mov [esp+36], eax |
1050 | ret |
||
1051 | @@: |
||
1052 | cmp eax, 17 |
||
1053 | ja @f |
||
1054 | stdcall srv_handlerEx, ebx |
||
1055 | mov [esp+36], eax |
||
1056 | ret |
||
1057 | @@: |
||
168 | serge | 1058 | cmp eax, 18 |
1059 | ja @f |
||
1060 | mov ecx, [CURRENT_TASK] |
||
1061 | shl ecx, 8 |
||
1062 | mov eax, [ecx+PROC_BASE+APPDATA.sse_handler] |
||
1063 | mov [ecx+PROC_BASE+APPDATA.sse_handler], ebx |
||
1064 | mov [esp+36], eax |
||
1065 | ret |
||
1066 | @@: |
||
164 | serge | 1067 | cmp eax, 19 |
198 | serge | 1068 | ja .fail |
227 | serge | 1069 | add ebx, new_app_base |
198 | serge | 1070 | cmp ebx, new_app_base |
1071 | jb .fail |
||
1072 | stdcall load_library, ebx |
||
1073 | mov [esp+36], eax |
||
1074 | ret |
||
1075 | |||
227 | serge | 1076 | |
164 | serge | 1077 | xor eax, eax |
1078 | mov [esp+36], eax |
||
1079 | ret |
||
1080 | |||
1081 | |||
1082 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
||
1083 | |||
1084 | |||
1085 | jecxz .end |
||
1086 | |||
1087 | |||
1088 | |||
1089 | |||
1090 | mov esi,edi |
||
1091 | xor eax,eax |
||
1092 | repne scasb |
||
1093 | neg ecx ; cx = count - strlen |
||
1094 | add ecx,ebx ; strlen + count - strlen |
||
1095 | |||
1096 | |||
1097 | mov edi,esi |
||
1098 | mov esi,[str2] |
||
1099 | repe cmpsb |
||
1100 | mov al,[esi-1] |
||
1101 | xor ecx,ecx |
||
1102 | |||
1103 | |||
1104 | ja .str2_big |
||
1105 | je .end |
||
1106 | |||
1107 | |||
1108 | sub ecx,2 |
||
1109 | |||
1110 | |||
1111 | not ecx |
||
1112 | .end: |
||
1113 | mov eax,ecx |
||
1114 | ret |
||
1115 | endp |
||
1116 | |||
1117 | |||
1118 | proc test_cpu |
||
1119 | locals |
||
1120 | cpu_type dd ? |
||
166 | serge | 1121 | cpu_id dd ? |
1122 | cpu_Intel dd ? |
||
1123 | cpu_AMD dd ? |
||
1124 | endl |
||
164 | serge | 1125 | |
1126 | |||
1127 | xor eax, eax |
||
211 | serge | 1128 | mov [cpu_caps], eax |
1129 | mov [cpu_caps+4], eax |
||
1130 | |||
164 | serge | 1131 | |
1132 | pop eax |
||
1133 | mov ecx, eax |
||
1134 | xor eax, 0x40000 |
||
1135 | push eax |
||
1136 | popfd |
||
1137 | pushfd |
||
1138 | pop eax |
||
1139 | xor eax, ecx |
||
1140 | mov [cpu_type], CPU_386 |
||
1141 | jz .end_cpuid |
||
221 | serge | 1142 | push ecx |
164 | serge | 1143 | popfd |
1144 | |||
1145 | |||
1146 | mov eax, ecx |
||
1147 | xor eax, 0x200000 |
||
1148 | push eax |
||
1149 | popfd |
||
1150 | pushfd |
||
1151 | pop eax |
||
1152 | xor eax, ecx |
||
1153 | je .end_cpuid |
||
221 | serge | 1154 | mov [cpu_id], 1 |
164 | serge | 1155 | |
1156 | |||
1157 | cpuid |
||
1158 | mov [cpu_vendor], ebx |
||
1159 | mov [cpu_vendor+4], edx |
||
1160 | mov [cpu_vendor+8], ecx |
||
1161 | cmp ebx, dword [intel_str] |
||
1162 | jne .check_AMD |
||
1163 | cmp edx, dword [intel_str+4] |
||
1164 | jne .check_AMD |
||
1165 | cmp ecx, dword [intel_str+8] |
||
1166 | jne .check_AMD |
||
1167 | mov [cpu_Intel], 1 |
||
1168 | cmp eax, 1 |
||
1169 | jl .end_cpuid |
||
1170 | mov eax, 1 |
||
1171 | cpuid |
||
1172 | mov [cpu_sign], eax |
||
1173 | mov [cpu_info], ebx |
||
1174 | mov [cpu_caps], edx |
||
1175 | mov [cpu_caps+4],ecx |
||
1176 | |||
1177 | |||
1178 | and eax, 0x0f |
||
1179 | ret |
||
1180 | .end_cpuid: |
||
1181 | mov eax, [cpu_type] |
||
1182 | ret |
||
1183 | |||
1184 | |||
1185 | cmp ebx, dword [AMD_str] |
||
1186 | jne .unknown |
||
221 | serge | 1187 | cmp edx, dword [AMD_str+4] |
164 | serge | 1188 | jne .unknown |
221 | serge | 1189 | cmp ecx, dword [AMD_str+8] |
164 | serge | 1190 | jne .unknown |
221 | serge | 1191 | mov [cpu_AMD], 1 |
164 | serge | 1192 | cmp eax, 1 |
1193 | jl .unknown |
||
221 | serge | 1194 | mov eax, 1 |
164 | serge | 1195 | cpuid |
1196 | mov [cpu_sign], eax |
||
1197 | mov [cpu_info], ebx |
||
1198 | mov [cpu_caps], edx |
||
1199 | mov [cpu_caps+4],ecx |
||
1200 | shr eax, 8 |
||
1201 | and eax, 0x0f |
||
1202 | ret |
||
1203 | .unknown: |
||
221 | serge | 1204 | mov eax, 1 |
1205 | cpuid |
||
1206 | mov [cpu_sign], eax |
||
1207 | mov [cpu_info], ebx |
||
1208 | mov [cpu_caps], edx |
||
1209 | mov [cpu_caps+4],ecx |
||
1210 | shr eax, 8 |
||
1211 | and eax, 0x0f |
||
1212 | ret |
||
1213 | endp |
||
164 | serge | 1214 | |
1215 | |||
1216 | MEM_WC equ 1 ;write combined memory |
||
1217 | MEM_UC equ 0 ;uncached memory |
||
1218 | |||
1219 | |||
1220 | proc init_mtrr |
||
1221 | |||
1222 | |||
1223 | je .exit |
||
1224 | |||
1225 | |||
211 | serge | 1226 | jnc .exit |
1227 | |||
1228 | |||
164 | serge | 1229 | or eax, 0x60000000 ;disable caching |
1230 | mov cr0, eax |
||
1231 | wbinvd ;invalidate cache |
||
1232 | |||
1233 | |||
1234 | rdmsr ; |
||
1235 | push eax |
||
1236 | |||
1237 | |||
1238 | xor eax, eax |
||
1239 | mov ecx, 0x2FF |
||
1240 | wrmsr ;disable all MTRR |
||
1241 | |||
1242 | |||
1243 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1244 | xor edx, edx |
||
1245 | xor eax, eax |
||
1246 | mov ecx, 0x204 |
||
1247 | mov ebx, 6 |
||
1248 | @@: |
||
1249 | wrmsr ;disable unused MTRR |
||
1250 | inc ecx |
||
1251 | wrmsr |
||
1252 | inc ecx |
||
1253 | dec ebx |
||
1254 | jnz @b |
||
1255 | |||
1256 | |||
1257 | |||
1258 | |||
1259 | or eax, 0x800 ;set default memtype to UC |
||
1260 | and al, 0xF0 |
||
1261 | mov ecx, 0x2FF |
||
1262 | wrmsr ;and enable MTRR |
||
1263 | |||
1264 | |||
1265 | and eax, not 0x60000000 |
||
1266 | mov cr0, eax ; enable caching |
||
1267 | .exit: |
||
1268 | ret |
||
1269 | endp |
||
1270 | |||
1271 | |||
1272 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1273 | |||
1274 | |||
1275 | mov eax, [base] |
||
1276 | or eax, [mem_type] |
||
1277 | mov ecx, [reg] |
||
1278 | lea ecx, [0x200+ecx*2] |
||
1279 | wrmsr |
||
1280 | |||
1281 | |||
1282 | dec ebx |
||
1283 | mov eax, 0xFFFFFFFF |
||
1284 | mov edx, 0x0000000F |
||
1285 | sub eax, ebx |
||
1286 | sbb edx, 0 |
||
1287 | or eax, 0x800 |
||
1288 | inc ecx |
||
1289 | wrmsr |
||
1290 | ret |
||
1291 | endp |
||
1292 | |||
1293 | |||
172 | serge | 1294 | proc stall stdcall, delay:dword |
1295 | push ecx |
||
1296 | push edx |
||
1297 | push ebx |
||
1298 | push eax |
||
1299 | |||
1300 | |||
1301 | mul [stall_mcs] |
||
1302 | mov ebx, eax ;low |
||
1303 | mov ecx, edx ;high |
||
1304 | rdtsc |
||
1305 | add ebx, eax |
||
1306 | adc ecx,edx |
||
1307 | @@: |
||
1308 | rdtsc |
||
1309 | sub eax, ebx |
||
1310 | sbb edx, ecx |
||
1311 | jb @B |
||
1312 | |||
1313 | |||
1314 | pop ebx |
||
1315 | pop edx |
||
1316 | pop ecx |
||
1317 | ret |
||
1318 | endp |
||
1319 | |||
1320 | |||
164 | serge | 1321 | align 4 |
1322 | intel_str db "GenuineIntel",0 |
||
1323 | AMD_str db "AuthenticAMD",0 |
||
1324 | endg |
||
1325 | |||
1326 | |||
1327 | align 16 |
||
1328 | irq_tab rd 16 |
||
1329 | |||
1330 | |||
1331 | |||
1332 | |||
1333 | |||
1334 | ipc_pdir rd 1 |
||
1335 | ipc_ptab rd 1 |
||
1336 | |||
1337 | |||
1338 | proc_mem_pdir rd 1 |
||
1339 | proc_mem_tab rd 1 |
||
1340 | |||
1341 | |||
1342 | tmp_task_ptab rd 1 |
||
1343 | tmp_task_data rd 1 |
||
1344 | |||
1345 | |||
1346 | fdd_buff rd 1 |
||
1347 | LFBSize rd 1 |
||
214 | serge | 1348 | |
164 | serge | 1349 | |
172 | serge | 1350 | ;;CPUID information |
164 | serge | 1351 | |
1352 | |||
1353 | cpu_sign rd 1 |
||
1354 | cpu_info rd 1 |
||
1355 | |||
1356 | |||
221 | serge | 1357 | |
1358 | |||
1359 | cur_saved_data rb 4096 |
||
1360 | |||
1361 | |||
276 | serge | 1362 | ;cursor_map rd 2 |
1363 | ;cursor_start rd 1 |
||
1364 | ;cursor_end rd 1 |
||
1365 | |||
221 | serge | 1366 | |
1367 | hw_cursor rd 1 |
||
233 | serge | 1368 | |
221 | serge | 1369 | |
1370 | scr_height rd 1 |
||
1371 | |||
1372 | |||
1373 | cur_saved_base rd 1 |
||
1374 | cur_saved_interl rd 1 |
||
1375 | cur_saved_w rd 1 |
||
1376 | cur_saved_h rd 1 |
||
1377 | |||
1378 | |||
164 | serge | 1379 | |
1380 | |||
1381 | align 16 |
||
1382 | |||
227 | serge | 1383 | |
276 | serge | 1384 | |
1385 | |||
278 | serge | 1386 | ; srv_tab rb 36*32 |
1387 | mem_block_map rb 512 |
||
227 | serge | 1388 | event_map rb 128 |
1389 | mem_block_list rd 64 |
||
1390 | mem_block_mask rd 2 |
||
1391 | |||
1392 | |||
278 | serge | 1393 | ; srv_map rd 1 |
1394 | |||
164 | serge | 1395 | |
278 | serge | 1396 | srv.bk rd 1 |
1397 | |||
1398 | |||
164 | serge | 1399 | mem_block_arr rd 1 |
1400 | mem_block_start rd 1 |
||
1401 | mem_block_end rd 1 |
||
1402 | |||
279 | serge | 1403 | |
1404 | heap_size rd 1 |
||
170 | serge | 1405 | heap_free rd 1 |
1406 | heap_blocks rd 1 |
||
1407 | free_blocks rd 1 |
||
1408 | |||
164 | serge | 1409 | |
1410 | page_end rd 1 |
||
1411 | events rd 1 |
||
227 | serge | 1412 | event_start rd 1 |
1413 | event_end rd 1 |
||
1414 | |||
1415 | |||
164 | serge | 1416 | endg |
1417 | |||
1418 | |||
1419 | |||
1420 | ; push edx |
||
1421 | ; mov edx, 0x400 ;bocsh |
||
1422 | ; mov al,0xff ;bocsh |
||
1423 | ; out dx, al ;bocsh |
||
1424 | ; pop edx |
||
1425 | ; pop eax |
||
1426 | |||
1427 | |||
237 | serge | 1428 | |
1429 | k_strrchr: |
||
1430 | push eax |
||
1431 | xor eax,eax |
||
1432 | or ecx,-1 |
||
1433 | repne scasb |
||
1434 | add ecx,1 |
||
1435 | neg ecx |
||
1436 | sub edi,1 |
||
1437 | pop eax |
||
1438 | std |
||
1439 | repne scasb |
||
1440 | cld |
||
1441 | add edi,1 |
||
1442 | |||
1443 | |||
1444 | jne @F |
||
1445 | mov eax,edi |
||
1446 | ret |
||
1447 | @@: |
||
1448 | xor eax,eax |
||
1449 | ret |
||
1450 | |||
1451 | |||
1452 | proc k_strncpy stdcall, dest:dword, src:dword, maxlen:dword |
||
1453 | mov eax, [dest] |
||
1454 | mov esi, [src] |
||
1455 | mov ecx, [maxlen] |
||
1456 | test eax, eax |
||
1457 | jz .L9 |
||
1458 | test esi, esi |
||
1459 | jz .L9 |
||
1460 | test ecx, ecx |
||
1461 | jz .L9 |
||
1462 | |||
1463 | |||
1464 | jmp .L1 |
||
1465 | |||
1466 | |||
1467 | .L2: |
||
1468 | mov edx, [esi+eax] |
||
1469 | mov [eax], dl |
||
1470 | test dl, dl |
||
1471 | jz .L7 |
||
1472 | |||
1473 | |||
1474 | test dh, dh |
||
1475 | jz .L6 |
||
1476 | |||
1477 | |||
1478 | mov [eax+2],dl |
||
1479 | test dl, dl |
||
1480 | jz .L5 |
||
1481 | |||
1482 | |||
1483 | test dh, dh |
||
1484 | jz .L4 |
||
1485 | add eax, 4 |
||
1486 | .L1: |
||
1487 | sub ecx, 4 |
||
1488 | jae .L2 |
||
1489 | |||
1490 | |||
1491 | jz .L9 |
||
1492 | |||
1493 | |||
1494 | mov [eax], dl |
||
1495 | test dl, dl |
||
1496 | jz .L3 |
||
1497 | |||
1498 | |||
1499 | dec ecx |
||
1500 | jz .L9 |
||
1501 | |||
1502 | |||
1503 | mov [eax], dl |
||
1504 | test dl, dl |
||
1505 | jz .L3 |
||
1506 | |||
1507 | |||
1508 | dec ecx |
||
1509 | jz .L9 |
||
1510 | |||
1511 | |||
1512 | mov [eax], dl |
||
1513 | test dl, dl |
||
1514 | jz .L3 |
||
1515 | |||
1516 | |||
1517 | jmp .L9 |
||
1518 | |||
1519 | |||
1520 | inc eax |
||
1521 | |||
1522 | |||
1523 | inc eax |
||
1524 | |||
1525 | |||
1526 | inc eax |
||
1527 | .L7: |
||
1528 | add ecx,3 |
||
1529 | jz .L9 |
||
1530 | .L8: |
||
1531 | mov byte [ecx+eax], 0 |
||
1532 | .L3: |
||
1533 | dec ecx |
||
1534 | jnz .L8 |
||
1535 | .L9: |
||
1536 | ret |
||
1537 | endp |
||
1538 | |||
1539 | |||
1540 | |||
1541 | |||
1542 | |||
1543 | |||
1544 | mov eax,[esp+4] |
||
1545 | mov edx, 3 |
||
1546 | |||
1547 | |||
1548 | jz .L1 |
||
1549 | jp .L0 |
||
1550 | |||
1551 | |||
1552 | je .L2 |
||
1553 | |||
1554 | |||
1555 | cmp dh, byte [eax] |
||
1556 | |||
1557 | |||
1558 | |||
1559 | |||
1560 | xor edx, 2 |
||
1561 | |||
1562 | |||
1563 | .L0: |
||
1564 | cmp dh, [eax] |
||
1565 | je .L2 |
||
1566 | |||
1567 | |||
1568 | xor edx, edx |
||
1569 | |||
1570 | |||
1571 | mov ecx, [eax] |
||
1572 | add eax, 4 |
||
1573 | |||
1574 | |||
1575 | add ecx, magic |
||
1576 | |||
1577 | |||
1578 | jnc .L3 |
||
1579 | |||
1580 | |||
1581 | and edx, not magic |
||
1582 | jne .L3 |
||
1583 | |||
1584 | |||
1585 | add eax, 4 |
||
1586 | |||
1587 | |||
1588 | add ecx, magic |
||
1589 | dec edx |
||
1590 | jnc .L3 |
||
1591 | |||
1592 | |||
1593 | and edx, not magic |
||
1594 | jne .L3 |
||
1595 | |||
1596 | |||
1597 | add eax, 4 |
||
1598 | |||
1599 | |||
1600 | add ecx, magic |
||
1601 | |||
1602 | |||
1603 | jnc .L3 |
||
1604 | |||
1605 | |||
1606 | |||
1607 | |||
1608 | jne .L3 |
||
1609 | |||
1610 | |||
1611 | add eax, 4 |
||
1612 | |||
1613 | |||
1614 | add ecx, magic |
||
1615 | |||
1616 | |||
1617 | jnc .L3 |
||
1618 | |||
1619 | |||
1620 | |||
1621 | |||
1622 | je .L1 |
||
1623 | |||
1624 | |||
1625 | sub ecx, magic |
||
1626 | |||
1627 | |||
1628 | jz .L2 |
||
1629 | |||
1630 | |||
1631 | test ch, ch |
||
1632 | jz .L2 |
||
1633 | |||
1634 | |||
1635 | inc eax |
||
1636 | |||
1637 | |||
1638 | jz .L2 |
||
1639 | |||
1640 | |||
1641 | |||
1642 | |||
1643 | sub eax, [esp+4] |
||
1644 | ret |
||
1645 | |||
1646 | |||
1647 |