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Rev | Author | Line No. | Line |
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164 | serge | 1 | |
2 | |||
3 | |||
4 | proc mem_test |
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5 | mov eax, cr0 |
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6 | or eax, (CR0_CD+CR0_NW);disable caching |
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168 | serge | 7 | mov cr0, eax |
164 | serge | 8 | wbinvd ;invalidate cache |
168 | serge | 9 | |
164 | serge | 10 | |
11 | mov ebx, 'TEST' |
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12 | @@: |
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13 | add edi, 0x400000 |
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14 | xchg ebx, dword [edi] |
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15 | cmp dword [edi], 'TEST' |
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16 | xchg ebx, dword [edi] |
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17 | je @b |
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18 | |||
19 | |||
168 | serge | 20 | mov cr0, eax |
164 | serge | 21 | mov eax, edi |
22 | ret |
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23 | endp |
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24 | |||
25 | |||
26 | proc init_memEx |
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27 | xor eax, eax |
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28 | mov edi, sys_pgdir |
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29 | mov ecx, 2048 |
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30 | rep stosd |
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31 | |||
32 | |||
33 | jnc .no_PSE |
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34 | |||
35 | |||
36 | or ebx, CR4_PSE |
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37 | mov eax, PG_LARGE+PG_SW |
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38 | bt [cpu_caps], CAPS_PGE |
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39 | jnc @F |
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40 | or eax, PG_GLOBAL |
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41 | or ebx, CR4_PGE |
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42 | @@: |
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43 | mov cr4, ebx |
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168 | serge | 44 | |
45 | |||
164 | serge | 46 | add eax, 0x00400000 |
47 | mov dword [sys_pgdir+4], eax |
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48 | add eax, 0x00400000 |
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49 | mov dword [sys_pgdir+8], eax |
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50 | add eax, 0x00400000 |
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51 | mov dword [sys_pgdir+12], eax |
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52 | |||
53 | |||
188 | serge | 54 | |
164 | serge | 55 | |
56 | sub ecx, 4 |
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57 | mov eax, tmp_page_tab+PG_SW |
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58 | mov edi, sys_pgdir+16 |
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59 | |||
60 | |||
61 | .no_PSE: |
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62 | mov eax, PG_SW |
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63 | mov esi, tmp_page_tab |
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64 | mov ecx, 4096/4 ;0x0 - 0x00FFFFFF |
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65 | .map_low: |
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66 | mov [esi], eax |
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67 | add eax, 0x1000 |
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68 | mov [esi+4], eax |
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69 | add eax, 0x1000 |
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70 | mov [esi+8], eax |
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71 | add eax, 0x1000 |
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72 | mov [esi+12], eax |
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73 | add eax, 0x1000 |
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74 | add esi, 16 |
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75 | dec ecx |
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76 | jnz .map_low ;ядро |
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77 | |||
78 | |||
79 | mov eax, tmp_page_tab+PG_SW |
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80 | mov edi, sys_pgdir |
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81 | |||
82 | |||
83 | |||
84 | |||
85 | add eax, 0x1000 |
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86 | add edi, 4 |
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87 | dec ecx |
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88 | jnz .map_kernel_tabs |
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89 | |||
90 | |||
91 | bt [cpu_caps], CAPS_PSE |
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92 | jc @F |
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93 | add edi, 4096*4 ;skip low kernel memory |
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94 | @@: |
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95 | mov ecx, [pg_data.kernel_tables] |
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96 | sub ecx, 4 |
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97 | shl ecx, 10 |
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98 | xor eax, eax |
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99 | cld |
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100 | rep stosd |
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101 | |||
102 | |||
188 | serge | 103 | |
104 | |||
164 | serge | 105 | endp |
106 | |||
107 | |||
108 | proc init_page_map |
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109 | mov edi, sys_pgmap |
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110 | mov ecx, 512/4 |
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111 | xor eax,eax |
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112 | cld |
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113 | rep stosd |
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114 | |||
115 | |||
116 | mov ecx, [pg_data.pagemap_size] |
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117 | sub ecx, 512 |
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118 | shr ecx, 2 |
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119 | rep stosd |
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120 | |||
121 | |||
122 | mov edx, [pg_data.pages_count] |
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123 | mov ecx, [pg_data.kernel_tables] |
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124 | bt [cpu_caps], CAPS_PSE |
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125 | jnc @f |
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126 | sub ecx, 4 |
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127 | @@: |
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128 | sub edx, 4096 |
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129 | sub edx, ecx |
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130 | mov [pg_data.pages_free], edx |
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131 | |||
132 | |||
133 | mov ebx, ecx |
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134 | shr ecx, 5 |
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135 | rep stosd |
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136 | |||
137 | |||
138 | mov ecx, ebx |
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139 | and ecx, 31 |
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140 | shl eax, cl |
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141 | stosd |
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142 | |||
143 | |||
144 | mov ebx, sys_pgmap |
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145 | add ebx, [pg_data.pagemap_size] |
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146 | mov [page_end], ebx |
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147 | |||
148 | |||
149 | |||
150 | |||
151 | endp |
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152 | |||
153 | |||
154 | proc alloc_page |
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155 | |||
156 | |||
157 | cli |
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158 | mov ebx, [page_start] |
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159 | mov ecx, [page_end] |
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160 | .l1: |
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161 | bsf eax,[ebx]; |
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162 | jnz .found |
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163 | add ebx,4 |
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164 | cmp ebx, ecx |
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165 | jb .l1 |
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166 | popfd |
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167 | xor eax,eax |
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168 | ret |
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169 | .found: |
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170 | btr [ebx], eax |
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171 | mov [page_start],ebx |
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172 | sub ebx, sys_pgmap |
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173 | shl ebx, 3 |
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174 | add eax,ebx |
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175 | shl eax, 12 |
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176 | dec [pg_data.pages_free] |
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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 | |||
267 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 268 | mov ebx, [lin_addr] |
164 | serge | 269 | shr ebx, 22 |
270 | mov eax, [phis_addr] |
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271 | and eax, not 0xFFF |
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272 | or eax, PG_UW ;+PG_NOCACHE |
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273 | mov dword [current_pgdir+ebx*4], eax |
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188 | serge | 274 | mov eax, [lin_addr] |
164 | serge | 275 | shr eax, 10 |
276 | add eax, pages_tab |
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277 | invlpg [eax] |
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278 | ret |
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279 | endp |
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280 | |||
281 | |||
282 | proc init_LFB |
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283 | cmp dword [LFBAddress], -1 |
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284 | jne @f |
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285 | mov [0x2f0000+0x901c],byte 2 |
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201 | serge | 286 | stdcall kernel_alloc, 0x280000 |
164 | serge | 287 | mov [LFBAddress], eax |
288 | ret |
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289 | @@: |
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290 | test [SCR_MODE],word 0100000000000000b |
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291 | jnz @f |
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211 | serge | 292 | mov [0x2f0000+0x901c],byte 2 |
293 | ret |
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294 | @@: |
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295 | call map_LFB |
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164 | serge | 296 | ret |
297 | endp |
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298 | |||
299 | |||
300 | proc map_LFB |
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301 | locals |
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302 | pg_count dd ? |
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303 | endl |
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304 | |||
305 | |||
306 | mov esi, [LFBAddress] |
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307 | shr edi, 12 |
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308 | mov [pg_count], edi |
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309 | shr edi, 10 |
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310 | |||
311 | |||
312 | jnc .map_page_tables |
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313 | mov ebx, esi |
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314 | or esi, PG_LARGE+PG_UW |
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315 | shr ebx, 20 |
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316 | mov ecx, ebx |
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317 | @@: |
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318 | mov [sys_pgdir+ebx], esi |
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319 | add ebx, 4 |
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320 | add esi, 0x00400000 |
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321 | dec edi |
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322 | jnz @B |
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323 | |||
324 | |||
207 | serge | 325 | jnc @F |
326 | or dword [sys_pgdir+ecx], PG_GLOBAL |
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164 | serge | 327 | @@: |
207 | serge | 328 | mov eax, cr3 ;flush TLB |
164 | serge | 329 | mov cr3, eax |
330 | ret |
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331 | |||
332 | |||
333 | |||
334 | |||
335 | call alloc_page |
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336 | stdcall map_page_table, esi, eax |
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188 | serge | 337 | add esi, 0x00400000 |
164 | serge | 338 | dec edi |
339 | jnz @B |
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340 | |||
341 | |||
342 | mov esi, eax |
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343 | shr esi, 10 |
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344 | add esi, pages_tab |
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345 | or eax, PG_UW |
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346 | mov ecx, [pg_count] |
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347 | shr ecx, 2 |
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348 | .map: |
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349 | mov [esi], eax |
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350 | add eax, 0x1000 |
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351 | mov [esi+4], eax |
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352 | add eax, 0x1000 |
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353 | mov [esi+8], eax |
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354 | add eax, 0x1000 |
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355 | mov [esi+12], eax |
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356 | add eax, 0x1000 |
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357 | add esi, 16 |
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358 | sub ecx, 1 |
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359 | jnz .map |
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360 | |||
361 | |||
362 | mov cr3, eax |
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363 | |||
364 | |||
365 | endp |
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366 | |||
367 | |||
368 | proc new_mem_resize stdcall, new_size:dword |
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369 | |||
370 | |||
371 | |||
372 | |||
373 | add edi,4095 |
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374 | and edi,not 4095 |
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375 | mov [new_size], edi |
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376 | |||
377 | |||
378 | shl edx,8 |
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379 | cmp [PROC_BASE+APPDATA.heap_base+edx],0 |
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172 | serge | 380 | jne .exit |
381 | |||
382 | |||
383 | add esi, 4095 |
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164 | serge | 384 | and esi, not 4095 |
385 | |||
386 | |||
387 | jae .expand |
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388 | |||
389 | |||
390 | shr esi, 12 |
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391 | @@: |
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392 | mov eax, [pages_tab+0x00181000+edi*4] |
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393 | test eax, 1 |
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394 | jz .next |
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395 | mov dword [pages_tab+0x00181000+edi*4], 2 |
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396 | mov ebx, edi |
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397 | shl ebx, 12 |
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398 | invlpg [ebx+std_application_base_address] |
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399 | call free_page |
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400 | |||
401 | |||
402 | cmp edi, esi |
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403 | jb @B |
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404 | |||
405 | |||
406 | |||
407 | |||
408 | mov [PROC_BASE+0x8c+edx],ebx |
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409 | |||
410 | |||
411 | ;application memory size infomation |
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412 | mov ecx,[PROC_BASE+0xb8+edx] |
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413 | mov eax,2 |
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414 | |||
415 | |||
416 | ;eax = current slot |
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417 | ;ebx = new memory size |
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418 | ;ecx = page directory |
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419 | cmp eax,[TASK_COUNT] |
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420 | jg .search_threads_end |
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421 | mov edx,eax |
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422 | shl edx,5 |
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423 | cmp word [CURRENT_TASK+edx+0xa],9 ;if slot empty? |
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424 | jz .search_threads_next |
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425 | shl edx,3 |
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426 | cmp [PROC_BASE+edx+0xb8],ecx ;if it is our thread? |
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427 | jnz .search_threads_next |
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428 | mov [PROC_BASE+edx+0x8c],ebx ;update memory size |
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429 | .search_threads_next: |
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430 | inc eax |
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431 | jmp .search_threads |
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432 | .search_threads_end: |
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433 | xor eax, eax |
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434 | dec [pg_data.pg_mutex] |
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435 | ret |
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436 | |||
437 | |||
438 | add edi, new_app_base |
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439 | add esi, new_app_base |
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440 | |||
441 | |||
442 | push edi |
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443 | |||
444 | |||
445 | and edi, not(0x3FFFFF) |
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446 | add esi, 0x3FFFFF |
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447 | and esi, not(0x3FFFFF) |
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448 | |||
449 | |||
450 | jae .grow |
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451 | |||
452 | |||
453 | |||
454 | |||
455 | call alloc_page |
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456 | test eax, eax |
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457 | jz .exit |
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458 | |||
459 | |||
188 | serge | 460 | |
164 | serge | 461 | |
462 | shr edi, 10 |
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463 | add edi, pages_tab |
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464 | mov ecx, 1024 |
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465 | xor eax, eax |
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466 | cld |
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467 | rep stosd |
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468 | pop edi |
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469 | |||
470 | |||
471 | cmp edi, esi |
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472 | jb @B |
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473 | .grow: |
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474 | pop edi |
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475 | pop esi |
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476 | @@: |
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477 | call alloc_page |
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478 | test eax, eax |
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479 | jz .exit |
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480 | stdcall map_page,esi,eax,dword PG_UW |
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481 | |||
482 | |||
483 | mov edi, esi |
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484 | xor eax, eax |
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485 | mov ecx, 1024 |
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486 | cld |
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487 | rep stosd |
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488 | pop edi |
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489 | |||
490 | |||
491 | cmp esi, edi |
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492 | jna @B |
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493 | |||
494 | |||
495 | .exit: |
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496 | xor eax, eax |
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497 | inc eax |
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498 | dec [pg_data.pg_mutex] |
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499 | ret |
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500 | endp |
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501 | |||
502 | |||
503 | proc get_pg_addr stdcall, lin_addr:dword |
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504 | mov ebx, [lin_addr] |
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505 | shr ebx, 12 |
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506 | mov eax, [pages_tab+ebx*4] |
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507 | and eax, 0xFFFFF000 |
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508 | ret |
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509 | endp |
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510 | |||
511 | |||
188 | serge | 512 | proc page_fault_handler |
164 | serge | 513 | pushad |
514 | |||
515 | |||
516 | mov eax, cr2 |
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517 | push eax |
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172 | serge | 518 | push ds |
164 | serge | 519 | push es |
188 | serge | 520 | |
164 | serge | 521 | |
522 | mov ds, ax |
||
523 | mov es, ax |
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188 | serge | 524 | |
164 | serge | 525 | |
188 | serge | 526 | |
527 | |||
164 | serge | 528 | |
529 | |||
530 | jae .lfb_addr |
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531 | |||
532 | |||
533 | jae .user_space |
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534 | |||
535 | |||
188 | serge | 536 | jae .alloc |
537 | |||
538 | |||
164 | serge | 539 | jae .tab_space |
540 | |||
541 | |||
542 | |||
543 | |||
544 | shr ebx, 12 |
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545 | mov ecx, ebx |
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172 | serge | 546 | shr ecx, 10 |
547 | mov edx, [master_tab+ecx*4] |
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548 | test edx, 1 |
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549 | jz .fail |
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550 | |||
551 | |||
164 | serge | 552 | test eax, 2 |
553 | jz .fail |
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172 | serge | 554 | .alloc: |
188 | serge | 555 | call alloc_page |
164 | serge | 556 | and eax, eax |
557 | jz .exit |
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558 | |||
559 | |||
560 | |||
561 | |||
188 | serge | 562 | and edi, 0xFFFFF000 |
563 | mov ecx, 1024 |
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164 | serge | 564 | xor eax, eax |
565 | cld |
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188 | serge | 566 | rep stosd |
567 | .exit: |
||
164 | serge | 568 | pop es |
188 | serge | 569 | pop ds |
164 | serge | 570 | mov esp, ebp |
571 | popad |
||
572 | add esp, 4 |
||
573 | iretd |
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574 | .fail: |
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172 | serge | 575 | pop es |
188 | serge | 576 | pop ds |
172 | serge | 577 | mov esp, ebp |
578 | popad |
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579 | add esp, 4 |
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580 | |||
164 | serge | 581 | |
172 | serge | 582 | |
583 | |||
584 | jmp exc_c |
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585 | iretd |
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586 | |||
587 | |||
164 | serge | 588 | ; shr ebx, 12 |
188 | serge | 589 | ; mov eax, [pages_tab+ebx*4] |
590 | ; shr ebx, 10 |
||
591 | ; mov eax, [master_tab+ebx*4] |
||
592 | jmp .exit |
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593 | .old_addr: |
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164 | serge | 594 | ; shr ebx, 12 |
188 | serge | 595 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 596 | ; shr ebx, 10 |
188 | serge | 597 | ; mov eax, [master_tab+ebx*4] |
598 | jmp .exit |
||
599 | .lfb_addr: |
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164 | serge | 600 | ; shr ebx, 22 |
188 | serge | 601 | ; ;mov ecx, [sys_page_dir] |
602 | ; mov eax, [master_tab+ebx*4] |
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603 | jmp .exit |
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604 | .tab_space: |
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164 | serge | 605 | ; shr ebx, 12 |
188 | serge | 606 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 607 | ; shr ebx, 10 |
188 | serge | 608 | ; ;mov ecx, [sys_page_dir] |
609 | ; mov eax, [master_tab+ebx*4] |
||
610 | jmp .exit |
||
611 | endp |
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164 | serge | 612 | |
613 | |||
614 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
615 | ofs:dword,buf_size:dword |
||
616 | mov eax, [buf_size] |
||
617 | test eax, eax |
||
618 | jz .exit |
||
619 | |||
620 | |||
621 | and eax, 0xFFFFF000 |
||
622 | |||
623 | |||
624 | mov ebx, [ofs] |
||
625 | shr ebx, 22 |
||
626 | mov esi, [ipc_pdir] |
||
627 | mov edi, [ipc_ptab] |
||
628 | mov eax, [esi+ebx*4] |
||
629 | and eax, 0xFFFFF000 |
||
630 | test eax, eax |
||
631 | jz .exit |
||
632 | stdcall map_page,edi,eax,dword PG_UW |
||
633 | ; inc ebx |
||
634 | ; add edi, 0x1000 |
||
635 | ; mov eax, [esi+ebx*4] |
||
636 | ; test eax, eax |
||
637 | ; jz @f |
||
638 | ; and eax, 0xFFFFF000 |
||
639 | ; stdcall map_page, edi, eax |
||
640 | |||
641 | |||
642 | and edi, 0xFFFFF000 |
||
643 | mov ecx, [buf_size] |
||
644 | add ecx, 4095 |
||
645 | shr ecx, 12 |
||
646 | inc ecx |
||
647 | |||
648 | |||
649 | shr edx, 12 |
||
650 | and edx, 0x3FF |
||
651 | mov esi, [ipc_ptab] |
||
652 | |||
653 | |||
654 | and eax, 0xFFFFF000 |
||
655 | test eax, eax |
||
656 | jz .exit |
||
657 | stdcall map_page,edi,eax,dword PG_UW |
||
658 | add edi, 0x1000 |
||
659 | inc edx |
||
660 | dec ecx |
||
661 | jnz .map |
||
662 | |||
663 | |||
664 | ret |
||
665 | endp |
||
666 | |||
667 | |||
668 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
669 | ofs:dword,buf_size:dword |
||
670 | mov eax, [buf_size] |
||
671 | test eax, eax |
||
672 | jz .exit |
||
673 | |||
674 | |||
675 | and eax, 0xFFFFF000 |
||
676 | |||
677 | |||
678 | mov ebx, [ofs] |
||
679 | shr ebx, 22 |
||
680 | mov esi, [proc_mem_pdir] |
||
681 | mov edi, [proc_mem_tab] |
||
682 | mov eax, [esi+ebx*4] |
||
683 | and eax, 0xFFFFF000 |
||
684 | test eax, eax |
||
685 | jz .exit |
||
686 | stdcall map_page,edi,eax,dword PG_UW |
||
687 | |||
688 | |||
689 | and edi, 0xFFFFF000 |
||
690 | mov ecx, [buf_size] |
||
691 | add ecx, 4095 |
||
692 | shr ecx, 12 |
||
693 | inc ecx |
||
694 | |||
695 | |||
696 | shr edx, 12 |
||
697 | and edx, 0x3FF |
||
698 | mov esi, [proc_mem_tab] |
||
699 | |||
700 | |||
701 | ; and eax, 0xFFFFF000 |
||
702 | ; test eax, eax |
||
703 | ; jz .exit |
||
704 | stdcall map_page,edi,eax,dword PG_UW |
||
705 | add edi, 0x1000 |
||
706 | inc edx |
||
707 | dec ecx |
||
708 | jnz .map |
||
709 | .exit: |
||
710 | ret |
||
711 | endp |
||
712 | |||
713 | |||
714 | |||
715 | |||
716 | |||
717 | ;input: |
||
718 | ; eax=1 - set ipc buffer area |
||
719 | ; ebx=address of buffer |
||
720 | ; ecx=size of buffer |
||
721 | ; eax=2 - send message |
||
722 | ; ebx=PID |
||
723 | ; ecx=address of message |
||
724 | ; edx=size of message |
||
725 | |||
726 | |||
727 | jne @f |
||
728 | call set_ipc_buff |
||
729 | mov [esp+36], eax |
||
730 | ret |
||
731 | @@: |
||
732 | cmp eax, 2 |
||
733 | jne @f |
||
734 | stdcall sys_ipc_send, ebx, ecx, edx |
||
735 | mov [esp+36], eax |
||
736 | ret |
||
737 | @@: |
||
738 | xor eax, eax |
||
739 | not eax |
||
740 | mov [esp+36], eax |
||
741 | ret |
||
742 | |||
743 | |||
744 | proc set_ipc_buff |
||
745 | |||
746 | |||
747 | shl eax,8 |
||
748 | add eax, PROC_BASE |
||
749 | pushf |
||
750 | cli |
||
751 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
752 | mov [eax+0xA4],ecx |
||
753 | |||
754 | |||
755 | add ecx, ebx |
||
756 | add ecx, 4095 |
||
757 | and ecx, not 4095 |
||
758 | |||
759 | |||
760 | add ebx, 0x1000 |
||
761 | cmp ebx, ecx |
||
762 | jna .touch |
||
763 | |||
764 | |||
765 | xor eax, eax |
||
766 | ret |
||
767 | endp |
||
768 | |||
769 | |||
770 | locals |
||
771 | dst_slot dd ? |
||
772 | dst_offset dd ? |
||
773 | buf_size dd ? |
||
774 | endl |
||
775 | |||
776 | |||
777 | cli |
||
778 | |||
779 | |||
780 | call pid_to_slot |
||
781 | test eax,eax |
||
782 | jz .no_pid |
||
783 | |||
784 | |||
785 | shl eax,8 |
||
786 | mov edi,[eax+PROC_BASE+0xa0] ;is ipc area defined? |
||
787 | test edi,edi |
||
788 | jz .no_ipc_area |
||
789 | |||
790 | |||
791 | add edi, new_app_base |
||
792 | and ebx, 0xFFF |
||
793 | mov [dst_offset], ebx |
||
794 | |||
795 | |||
796 | mov [buf_size], esi |
||
797 | |||
798 | |||
799 | edi, esi |
||
800 | |||
801 | |||
802 | add edi, [ipc_tmp] |
||
803 | cmp dword [edi], 0 |
||
804 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
805 | mov ebx, dword [edi+4] |
||
806 | mov edx, ebx |
||
807 | add ebx, 8 |
||
808 | add ebx, [msg_size] |
||
809 | cmp ebx, [buf_size] |
||
810 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
811 | mov dword [edi+4], ebx |
||
812 | mov eax,[TASK_BASE] |
||
813 | mov eax, [eax+0x04] ;eax - our PID |
||
814 | mov edi, [dst_offset] |
||
815 | add edi, [ipc_tmp] |
||
816 | add edi, edx |
||
817 | mov [edi], eax |
||
818 | mov ecx, [msg_size] |
||
819 | |||
820 | |||
821 | add edi, 8 |
||
822 | mov esi, [msg_addr] |
||
823 | add esi, new_app_base |
||
824 | cld |
||
825 | rep movsb |
||
826 | |||
827 | |||
828 | mov edx, ebx |
||
829 | shr ebx, 12 |
||
830 | xor eax, eax |
||
831 | mov [pages_tab+ebx*4], eax |
||
832 | invlpg [edx] |
||
833 | |||
834 | |||
835 | mov edx, ebx |
||
836 | shr ebx, 12 |
||
837 | xor eax, eax |
||
838 | mov [pages_tab+ebx*4], eax |
||
839 | invlpg [edx] |
||
840 | |||
841 | |||
842 | mov edx, ebx |
||
843 | shr ebx, 12 |
||
844 | xor eax, eax |
||
845 | mov [pages_tab+ebx*4], eax |
||
846 | invlpg [edx] |
||
847 | |||
848 | |||
849 | shl eax, 8 |
||
850 | or [eax+PROC_BASE+0xA8],dword 0x40 |
||
851 | cmp dword [check_idle_semaphore],20 |
||
852 | jge .ipc_no_cis |
||
853 | |||
854 | |||
855 | .ipc_no_cis: |
||
856 | popf |
||
857 | xor eax, eax |
||
858 | ret |
||
859 | .no_pid: |
||
860 | popf |
||
861 | mov eax, 4 |
||
862 | ret |
||
863 | .no_ipc_area: |
||
864 | popf |
||
865 | xor eax, eax |
||
866 | inc eax |
||
867 | ret |
||
868 | .ipc_blocked: |
||
869 | popf |
||
870 | mov eax, 2 |
||
871 | ret |
||
872 | .buffer_overflow: |
||
873 | popf |
||
874 | mov eax, 3 |
||
875 | ret |
||
876 | endp |
||
877 | |||
878 | |||
879 | sysfn_meminfo: |
||
170 | serge | 880 | |
164 | serge | 881 | |
170 | serge | 882 | cmp ebx, new_app_base |
172 | serge | 883 | jb .fail |
884 | |||
885 | |||
164 | serge | 886 | mov [ebx], eax |
170 | serge | 887 | shl eax, 12 |
172 | serge | 888 | mov [esp+36], eax |
889 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 890 | mov [ebx+4], ecx |
891 | mov edx, [pg_data.pages_faults] |
||
892 | mov [ebx+8], edx |
||
893 | mov esi, [heap_size] |
||
894 | mov [ebx+12], esi |
||
895 | mov edi, [heap_free] |
||
896 | mov [ebx+16], edi |
||
897 | mov eax, [heap_blocks] |
||
898 | mov [ebx+20], eax |
||
899 | mov ecx, [free_blocks] |
||
900 | mov [ebx+24], ecx |
||
901 | ret |
||
164 | serge | 902 | .fail: |
172 | serge | 903 | mov dword [esp+36], -1 |
904 | ret |
||
905 | |||
164 | serge | 906 | |
907 | new_services: |
||
908 | |||
909 | |||
910 | jle sys_sheduler |
||
911 | |||
912 | |||
170 | serge | 913 | jb .fail |
164 | serge | 914 | ja @f |
915 | |||
916 | |||
188 | serge | 917 | mov [esp+36], eax |
164 | serge | 918 | ret |
919 | @@: |
||
920 | cmp eax, 12 |
||
921 | ja @f |
||
922 | |||
923 | |||
924 | mov [esp+36], eax |
||
925 | ret |
||
926 | @@: |
||
927 | cmp eax, 13 |
||
928 | ja @f |
||
929 | add ebx, new_app_base |
||
188 | serge | 930 | stdcall user_free, ebx |
164 | serge | 931 | mov [esp+36], eax |
932 | ret |
||
933 | @@: |
||
934 | cmp eax, 14 |
||
935 | ja @f |
||
936 | add ebx,new_app_base |
||
937 | cmp ebx, new_app_base |
||
172 | serge | 938 | jb .fail |
939 | stdcall get_notify, ebx |
||
164 | serge | 940 | ret |
941 | @@: |
||
942 | cmp eax, 15 |
||
943 | ja @f |
||
944 | mov ecx, [CURRENT_TASK] |
||
945 | shl ecx, 8 |
||
946 | mov eax, [ecx+PROC_BASE+APPDATA.fpu_handler] |
||
947 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], ebx |
||
948 | mov [esp+36], eax |
||
949 | ret |
||
950 | @@: |
||
951 | cmp eax, 16 |
||
952 | ja @f |
||
953 | |||
954 | |||
188 | serge | 955 | jz .fail |
956 | add ebx, new_app_base |
||
164 | serge | 957 | cmp ebx, new_app_base |
172 | serge | 958 | jb .fail |
959 | stdcall get_service, ebx |
||
164 | serge | 960 | mov [esp+36], eax |
961 | ret |
||
962 | @@: |
||
963 | cmp eax, 17 |
||
964 | ja @f |
||
965 | stdcall srv_handlerEx, ebx |
||
966 | mov [esp+36], eax |
||
967 | ret |
||
968 | @@: |
||
168 | serge | 969 | cmp eax, 18 |
970 | ja @f |
||
971 | mov ecx, [CURRENT_TASK] |
||
972 | shl ecx, 8 |
||
973 | mov eax, [ecx+PROC_BASE+APPDATA.sse_handler] |
||
974 | mov [ecx+PROC_BASE+APPDATA.sse_handler], ebx |
||
975 | mov [esp+36], eax |
||
976 | ret |
||
977 | @@: |
||
164 | serge | 978 | cmp eax, 19 |
198 | serge | 979 | ja @f |
980 | add ebx, new_app_base |
||
981 | cmp ebx, new_app_base |
||
982 | jb .fail |
||
983 | stdcall load_library, ebx |
||
984 | mov [esp+36], eax |
||
985 | ret |
||
986 | @@: |
||
987 | .fail: |
||
164 | serge | 988 | xor eax, eax |
989 | mov [esp+36], eax |
||
990 | ret |
||
991 | |||
992 | |||
993 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
||
994 | |||
995 | |||
996 | jecxz .end |
||
997 | |||
998 | |||
999 | |||
1000 | |||
1001 | mov esi,edi |
||
1002 | xor eax,eax |
||
1003 | repne scasb |
||
1004 | neg ecx ; cx = count - strlen |
||
1005 | add ecx,ebx ; strlen + count - strlen |
||
1006 | |||
1007 | |||
1008 | mov edi,esi |
||
1009 | mov esi,[str2] |
||
1010 | repe cmpsb |
||
1011 | mov al,[esi-1] |
||
1012 | xor ecx,ecx |
||
1013 | |||
1014 | |||
1015 | ja .str2_big |
||
1016 | je .end |
||
1017 | |||
1018 | |||
1019 | sub ecx,2 |
||
1020 | |||
1021 | |||
1022 | not ecx |
||
1023 | .end: |
||
1024 | mov eax,ecx |
||
1025 | ret |
||
1026 | endp |
||
1027 | |||
1028 | |||
1029 | proc fpu_save |
||
1030 | clts |
||
1031 | mov ebx, [fpu_owner] |
||
1032 | shl ebx, 8 |
||
1033 | mov eax, [ebx+PROC_BASE+0x10] |
||
1034 | mov ebx, [CURRENT_TASK] |
||
1035 | mov [fpu_owner], ebx |
||
1036 | |||
1037 | |||
1038 | jnc .no_SSE |
||
1039 | |||
1040 | |||
1041 | fninit ;re-init fpu |
||
203 | serge | 1042 | ret |
164 | serge | 1043 | .no_SSE: |
1044 | fnsave [eax] |
||
1045 | ret |
||
1046 | endp |
||
1047 | |||
1048 | |||
1049 | proc fpu_restore |
||
1050 | mov ebx, [CURRENT_TASK] |
||
1051 | shl ebx, 8 |
||
1052 | mov eax, [ebx+PROC_BASE+0x10] |
||
1053 | bt [cpu_caps], CAPS_FXSR |
||
1054 | jnc .no_SSE |
||
1055 | |||
1056 | |||
1057 | ret |
||
1058 | .no_SSE: |
||
1059 | fnclex ;fix possible problems |
||
203 | serge | 1060 | frstor [eax] |
164 | serge | 1061 | ret |
1062 | endp |
||
1063 | |||
1064 | |||
1065 | proc test_cpu |
||
1066 | locals |
||
1067 | cpu_type dd ? |
||
166 | serge | 1068 | cpu_id dd ? |
1069 | cpu_Intel dd ? |
||
1070 | cpu_AMD dd ? |
||
1071 | endl |
||
164 | serge | 1072 | |
1073 | |||
1074 | xor eax, eax |
||
211 | serge | 1075 | mov [cpu_caps], eax |
1076 | mov [cpu_caps+4], eax |
||
1077 | |||
164 | serge | 1078 | |
1079 | pop eax |
||
1080 | mov ecx, eax |
||
1081 | xor eax, 0x40000 |
||
1082 | push eax |
||
1083 | popfd |
||
1084 | pushfd |
||
1085 | pop eax |
||
1086 | xor eax, ecx |
||
1087 | mov [cpu_type], CPU_386 |
||
1088 | jz .end_cpu |
||
1089 | push ecx |
||
1090 | popfd |
||
1091 | |||
1092 | |||
1093 | mov eax, ecx |
||
1094 | xor eax, 0x200000 |
||
1095 | push eax |
||
1096 | popfd |
||
1097 | pushfd |
||
1098 | pop eax |
||
1099 | xor eax, ecx |
||
1100 | je .end_cpu |
||
1101 | mov [cpu_id], 1 |
||
1102 | |||
1103 | |||
1104 | cpuid |
||
1105 | mov [cpu_vendor], ebx |
||
1106 | mov [cpu_vendor+4], edx |
||
1107 | mov [cpu_vendor+8], ecx |
||
1108 | cmp ebx, dword [intel_str] |
||
1109 | jne .check_AMD |
||
1110 | cmp edx, dword [intel_str+4] |
||
1111 | jne .check_AMD |
||
1112 | cmp ecx, dword [intel_str+8] |
||
1113 | jne .check_AMD |
||
1114 | mov [cpu_Intel], 1 |
||
1115 | cmp eax, 1 |
||
1116 | jl .end_cpuid |
||
1117 | mov eax, 1 |
||
1118 | cpuid |
||
1119 | mov [cpu_sign], eax |
||
1120 | mov [cpu_info], ebx |
||
1121 | mov [cpu_caps], edx |
||
1122 | mov [cpu_caps+4],ecx |
||
1123 | |||
1124 | |||
1125 | and eax, 0x0f |
||
1126 | mov [cpu_type], eax |
||
1127 | ret |
||
1128 | |||
1129 | |||
1130 | mov eax, [cpu_type] |
||
1131 | ret |
||
1132 | |||
1133 | |||
1134 | cmp ebx, dword [AMD_str] |
||
1135 | jne .end_cpu |
||
1136 | cmp edx, dword [AMD_str+4] |
||
1137 | jne .end_cpu |
||
1138 | cmp ecx, dword [AMD_str+8] |
||
1139 | jne .end_cpu |
||
1140 | mov [cpu_AMD], 1 |
||
1141 | cmp eax, 1 |
||
1142 | jl .end_cpuid |
||
1143 | mov eax, 1 |
||
1144 | cpuid |
||
1145 | mov [cpu_sign], eax |
||
1146 | mov [cpu_info], ebx |
||
1147 | mov [cpu_caps], edx |
||
1148 | mov [cpu_caps+4],ecx |
||
1149 | shr eax, 8 |
||
1150 | and eax, 0x0f |
||
1151 | mov [cpu_type], eax |
||
1152 | .end_cpu: |
||
1153 | mov eax, [cpu_type] |
||
1154 | ret |
||
1155 | endp |
||
1156 | |||
1157 | |||
1158 | MEM_WC equ 1 ;write combined memory |
||
1159 | MEM_UC equ 0 ;uncached memory |
||
1160 | |||
1161 | |||
1162 | proc init_mtrr |
||
1163 | |||
1164 | |||
1165 | je .exit |
||
1166 | |||
1167 | |||
211 | serge | 1168 | jnc .exit |
1169 | |||
1170 | |||
164 | serge | 1171 | or eax, 0x60000000 ;disable caching |
1172 | mov cr0, eax |
||
1173 | wbinvd ;invalidate cache |
||
1174 | |||
1175 | |||
1176 | rdmsr ; |
||
1177 | push eax |
||
1178 | |||
1179 | |||
1180 | xor eax, eax |
||
1181 | mov ecx, 0x2FF |
||
1182 | wrmsr ;disable all MTRR |
||
1183 | |||
1184 | |||
1185 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1186 | xor edx, edx |
||
1187 | xor eax, eax |
||
1188 | mov ecx, 0x204 |
||
1189 | mov ebx, 6 |
||
1190 | @@: |
||
1191 | wrmsr ;disable unused MTRR |
||
1192 | inc ecx |
||
1193 | wrmsr |
||
1194 | inc ecx |
||
1195 | dec ebx |
||
1196 | jnz @b |
||
1197 | |||
1198 | |||
1199 | |||
1200 | |||
1201 | or eax, 0x800 ;set default memtype to UC |
||
1202 | and al, 0xF0 |
||
1203 | mov ecx, 0x2FF |
||
1204 | wrmsr ;and enable MTRR |
||
1205 | |||
1206 | |||
1207 | and eax, not 0x60000000 |
||
1208 | mov cr0, eax ; enable caching |
||
1209 | .exit: |
||
1210 | ret |
||
1211 | endp |
||
1212 | |||
1213 | |||
1214 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1215 | |||
1216 | |||
1217 | mov eax, [base] |
||
1218 | or eax, [mem_type] |
||
1219 | mov ecx, [reg] |
||
1220 | lea ecx, [0x200+ecx*2] |
||
1221 | wrmsr |
||
1222 | |||
1223 | |||
1224 | dec ebx |
||
1225 | mov eax, 0xFFFFFFFF |
||
1226 | mov edx, 0x0000000F |
||
1227 | sub eax, ebx |
||
1228 | sbb edx, 0 |
||
1229 | or eax, 0x800 |
||
1230 | inc ecx |
||
1231 | wrmsr |
||
1232 | ret |
||
1233 | endp |
||
1234 | |||
1235 | |||
172 | serge | 1236 | proc stall stdcall, delay:dword |
1237 | push ecx |
||
1238 | push edx |
||
1239 | push ebx |
||
1240 | push eax |
||
1241 | |||
1242 | |||
1243 | mul [stall_mcs] |
||
1244 | mov ebx, eax ;low |
||
1245 | mov ecx, edx ;high |
||
1246 | rdtsc |
||
1247 | add ebx, eax |
||
1248 | adc ecx,edx |
||
1249 | @@: |
||
1250 | rdtsc |
||
1251 | sub eax, ebx |
||
1252 | sbb edx, ecx |
||
1253 | jb @B |
||
1254 | |||
1255 | |||
1256 | pop ebx |
||
1257 | pop edx |
||
1258 | pop ecx |
||
1259 | ret |
||
1260 | endp |
||
1261 | |||
1262 | |||
164 | serge | 1263 | align 4 |
1264 | intel_str db "GenuineIntel",0 |
||
1265 | AMD_str db "AuthenticAMD",0 |
||
1266 | endg |
||
1267 | |||
1268 | |||
1269 | align 16 |
||
1270 | irq_tab rd 16 |
||
1271 | |||
1272 | |||
1273 | |||
1274 | |||
1275 | |||
1276 | ipc_pdir rd 1 |
||
1277 | ipc_ptab rd 1 |
||
1278 | |||
1279 | |||
1280 | proc_mem_pdir rd 1 |
||
1281 | proc_mem_tab rd 1 |
||
1282 | |||
1283 | |||
1284 | tmp_task_ptab rd 1 |
||
1285 | tmp_task_data rd 1 |
||
1286 | |||
1287 | |||
188 | serge | 1288 | |
164 | serge | 1289 | |
1290 | fdd_buff rd 1 |
||
1291 | |||
1292 | |||
172 | serge | 1293 | ;;CPUID information |
164 | serge | 1294 | |
1295 | |||
1296 | cpu_sign rd 1 |
||
1297 | cpu_info rd 1 |
||
1298 | |||
1299 | |||
1300 | |||
1301 | |||
1302 | align 16 |
||
1303 | dll_tab rb 32*32 |
||
1304 | srv_tab rb 32*32 |
||
1305 | dll_map rd 1 |
||
1306 | srv_map rd 1 |
||
1307 | |||
1308 | |||
1309 | mem_block_list rd 64 |
||
1310 | mem_block_map rb 512 |
||
1311 | mem_block_arr rd 1 |
||
1312 | mem_block_start rd 1 |
||
1313 | mem_block_end rd 1 |
||
1314 | mem_block_mask rd 2 |
||
1315 | heap_size rd 1 |
||
170 | serge | 1316 | heap_free rd 1 |
1317 | heap_blocks rd 1 |
||
1318 | free_blocks rd 1 |
||
1319 | |||
164 | serge | 1320 | |
1321 | page_end rd 1 |
||
1322 | sys_page_map rd 1 |
||
1323 | ; app_load rd 1 |
||
170 | serge | 1324 | endg |
164 | serge | 1325 | |
1326 | |||
1327 | |||
1328 | ; push edx |
||
1329 | ; mov edx, 0x400 ;bocsh |
||
1330 | ; mov al,0xff ;bocsh |
||
1331 | ; out dx, al ;bocsh |
||
1332 | ; pop edx |
||
1333 | ; pop eax0>> |
||
1334 |