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