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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 | |||
168 | serge | 43 | |
164 | serge | 44 | mov cr4, ebx |
168 | serge | 45 | |
46 | |||
164 | serge | 47 | add eax, 0x00400000 |
48 | mov dword [sys_pgdir+4], eax |
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49 | add eax, 0x00400000 |
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50 | mov dword [sys_pgdir+8], eax |
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51 | add eax, 0x00400000 |
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52 | mov dword [sys_pgdir+12], eax |
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53 | |||
54 | |||
188 | serge | 55 | |
164 | serge | 56 | |
57 | sub ecx, 4 |
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58 | mov eax, tmp_page_tab+PG_SW |
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59 | mov edi, sys_pgdir+16 |
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60 | |||
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, 4096/4 ;0x0 - 0x00FFFFFF |
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66 | .map_low: |
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67 | mov [esi], eax |
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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, 4096*4 ;skip low kernel memory |
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95 | @@: |
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96 | mov ecx, [pg_data.kernel_tables] |
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97 | sub ecx, 4 |
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98 | shl ecx, 10 |
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99 | xor eax, eax |
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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, 512/4 |
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112 | xor eax,eax |
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113 | cld |
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114 | rep stosd |
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115 | |||
116 | |||
117 | mov ecx, [pg_data.pagemap_size] |
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118 | sub ecx, 512 |
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119 | shr ecx, 2 |
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120 | rep stosd |
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121 | |||
122 | |||
123 | mov edx, [pg_data.pages_count] |
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124 | mov ecx, [pg_data.kernel_tables] |
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125 | bt [cpu_caps], CAPS_PSE |
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126 | jnc @f |
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127 | sub ecx, 4 |
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128 | @@: |
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129 | sub edx, 4096 |
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130 | sub edx, ecx |
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131 | mov [pg_data.pages_free], edx |
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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 | |||
145 | mov ebx, sys_pgmap |
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146 | add ebx, [pg_data.pagemap_size] |
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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 | shl ebx, 3 |
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175 | add eax,ebx |
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176 | shl eax, 12 |
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177 | dec [pg_data.pages_free] |
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178 | popfd |
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179 | ret |
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180 | endp |
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181 | |||
182 | |||
183 | proc alloc_pages stdcall, count:dword |
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184 | pushfd |
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185 | cli |
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186 | mov eax, [count] |
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187 | add eax, 7 |
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188 | shr eax, 3 |
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189 | mov [count], eax |
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190 | cmp eax, [pg_data.pages_free] |
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191 | ja .fail |
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192 | |||
193 | |||
194 | mov ebx, [page_end] |
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195 | .find: |
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196 | mov edx, [count] |
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197 | mov edi, ecx |
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198 | .match: |
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199 | cmp byte [ecx], 0xFF |
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200 | jne .next |
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201 | dec edx |
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202 | jz .ok |
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203 | inc ecx |
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204 | cmp ecx,ebx |
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205 | jb .match |
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206 | .fail: xor eax, eax |
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207 | popfd |
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208 | ret |
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209 | .next: |
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210 | inc ecx |
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211 | cmp ecx, ebx |
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212 | jb .find |
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213 | popfd |
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214 | xor eax, eax |
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215 | ret |
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216 | .ok: |
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217 | sub ecx, edi |
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218 | inc ecx |
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219 | mov esi, edi |
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220 | xor eax, eax |
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221 | rep stosb |
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222 | sub esi, sys_pgmap |
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223 | shl esi, 3+12 |
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224 | mov eax, esi |
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225 | mov ebx, [count] |
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226 | shl ebx, 3 |
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227 | sub [pg_data.pages_free], ebx |
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228 | popfd |
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229 | ret |
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230 | endp |
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231 | |||
232 | |||
233 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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234 | mov eax, [phis_addr] |
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235 | and eax, not 0xFFF |
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236 | or eax, [flags] |
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237 | mov ebx, [lin_addr] |
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238 | shr ebx, 12 |
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239 | mov [pages_tab+ebx*4], eax |
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240 | mov eax, [lin_addr] |
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241 | invlpg [eax] |
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242 | ret |
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243 | endp |
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244 | |||
245 | |||
246 | proc free_page |
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247 | ;arg: eax page address |
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248 | pushfd |
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249 | cli |
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250 | inc [pg_data.pages_free] |
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251 | shr eax, 12 ;page index |
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252 | mov ebx, sys_pgmap |
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253 | bts [ebx], eax ;that's all! |
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254 | shr eax, 3 |
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255 | and eax, not 3 ;dword offset from page_map |
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256 | add eax, ebx |
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257 | cmp [page_start], eax |
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258 | ja @f |
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259 | popfd |
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260 | ret |
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261 | @@: |
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262 | mov [page_start], eax |
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263 | popfd |
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264 | ret |
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265 | endp |
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266 | |||
267 | |||
268 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 269 | mov ebx, [lin_addr] |
164 | serge | 270 | shr ebx, 22 |
271 | mov eax, [phis_addr] |
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272 | and eax, not 0xFFF |
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273 | or eax, PG_UW ;+PG_NOCACHE |
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274 | mov dword [current_pgdir+ebx*4], eax |
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188 | serge | 275 | mov eax, [lin_addr] |
164 | serge | 276 | shr eax, 10 |
277 | add eax, pages_tab |
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278 | invlpg [eax] |
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279 | ret |
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280 | endp |
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281 | |||
282 | |||
283 | proc init_LFB |
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284 | |||
285 | |||
286 | jne @f |
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287 | |||
288 | |||
201 | serge | 289 | stdcall kernel_alloc, 0x280000 |
164 | serge | 290 | mov [LFBAddress], eax |
291 | |||
201 | serge | 292 | |
164 | serge | 293 | @@: |
294 | test [SCR_MODE],word 0100000000000000b |
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295 | jz @f |
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296 | call map_LFB |
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297 | @@: |
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298 | ret |
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299 | endp |
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300 | |||
301 | |||
302 | proc map_LFB |
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303 | locals |
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304 | pg_count dd ? |
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305 | endl |
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306 | |||
307 | |||
308 | mov esi, [LFBAddress] |
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309 | shr edi, 12 |
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310 | mov [pg_count], edi |
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311 | shr edi, 10 |
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312 | |||
313 | |||
314 | jnc .map_page_tables |
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315 | mov ebx, esi |
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316 | or esi, PG_LARGE+PG_UW |
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317 | shr ebx, 20 |
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318 | mov ecx, ebx |
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319 | @@: |
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320 | mov [sys_pgdir+ebx], esi |
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321 | add ebx, 4 |
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322 | add esi, 0x00400000 |
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323 | dec edi |
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324 | jnz @B |
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325 | |||
326 | |||
327 | mov eax, cr3 ;flush TLB |
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328 | mov cr3, eax |
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329 | ret |
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330 | |||
331 | |||
332 | |||
333 | |||
334 | call alloc_page |
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335 | stdcall map_page_table, esi, eax |
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188 | serge | 336 | add esi, 0x00400000 |
164 | serge | 337 | dec edi |
338 | jnz @B |
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339 | |||
340 | |||
341 | mov esi, eax |
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342 | shr esi, 10 |
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343 | add esi, pages_tab |
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344 | or eax, PG_UW |
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345 | mov ecx, [pg_count] |
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346 | shr ecx, 2 |
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347 | .map: |
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348 | mov [esi], eax |
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349 | add eax, 0x1000 |
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350 | mov [esi+4], eax |
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351 | add eax, 0x1000 |
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352 | mov [esi+8], eax |
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353 | add eax, 0x1000 |
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354 | mov [esi+12], eax |
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355 | add eax, 0x1000 |
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356 | add esi, 16 |
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357 | sub ecx, 1 |
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358 | jnz .map |
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359 | |||
360 | |||
361 | mov cr3, eax |
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362 | |||
363 | |||
364 | endp |
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365 | |||
366 | |||
367 | proc new_mem_resize stdcall, new_size:dword |
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368 | |||
369 | |||
370 | |||
371 | |||
372 | add edi,4095 |
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373 | and edi,not 4095 |
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374 | mov [new_size], edi |
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375 | |||
376 | |||
377 | shl edx,8 |
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378 | cmp [PROC_BASE+APPDATA.heap_base+edx],0 |
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172 | serge | 379 | jne .exit |
380 | |||
381 | |||
382 | add esi, 4095 |
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164 | serge | 383 | and esi, not 4095 |
384 | |||
385 | |||
386 | jae .expand |
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387 | |||
388 | |||
389 | shr esi, 12 |
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390 | @@: |
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391 | mov eax, [pages_tab+0x00181000+edi*4] |
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392 | test eax, 1 |
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393 | jz .next |
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394 | mov dword [pages_tab+0x00181000+edi*4], 2 |
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395 | mov ebx, edi |
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396 | shl ebx, 12 |
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397 | invlpg [ebx+std_application_base_address] |
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398 | call free_page |
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399 | |||
400 | |||
401 | cmp edi, esi |
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402 | jb @B |
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403 | |||
404 | |||
405 | |||
406 | |||
407 | mov [PROC_BASE+0x8c+edx],ebx |
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408 | |||
409 | |||
410 | ;application memory size infomation |
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411 | mov ecx,[PROC_BASE+0xb8+edx] |
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412 | mov eax,2 |
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413 | |||
414 | |||
415 | ;eax = current slot |
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416 | ;ebx = new memory size |
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417 | ;ecx = page directory |
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418 | cmp eax,[TASK_COUNT] |
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419 | jg .search_threads_end |
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420 | mov edx,eax |
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421 | shl edx,5 |
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422 | cmp word [CURRENT_TASK+edx+0xa],9 ;if slot empty? |
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423 | jz .search_threads_next |
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424 | shl edx,3 |
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425 | cmp [PROC_BASE+edx+0xb8],ecx ;if it is our thread? |
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426 | jnz .search_threads_next |
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427 | mov [PROC_BASE+edx+0x8c],ebx ;update memory size |
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428 | .search_threads_next: |
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429 | inc eax |
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430 | jmp .search_threads |
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431 | .search_threads_end: |
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432 | xor eax, eax |
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433 | dec [pg_data.pg_mutex] |
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434 | ret |
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435 | |||
436 | |||
437 | add edi, new_app_base |
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438 | add esi, new_app_base |
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439 | |||
440 | |||
441 | push edi |
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442 | |||
443 | |||
444 | and edi, not(0x3FFFFF) |
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445 | add esi, 0x3FFFFF |
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446 | and esi, not(0x3FFFFF) |
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447 | |||
448 | |||
449 | jae .grow |
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450 | |||
451 | |||
452 | |||
453 | |||
454 | call alloc_page |
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455 | test eax, eax |
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456 | jz .exit |
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457 | |||
458 | |||
188 | serge | 459 | |
164 | serge | 460 | |
461 | shr edi, 10 |
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462 | add edi, pages_tab |
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463 | mov ecx, 1024 |
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464 | xor eax, eax |
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465 | cld |
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466 | rep stosd |
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467 | pop edi |
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468 | |||
469 | |||
470 | cmp edi, esi |
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471 | jb @B |
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472 | .grow: |
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473 | pop edi |
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474 | pop esi |
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475 | @@: |
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476 | call alloc_page |
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477 | test eax, eax |
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478 | jz .exit |
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479 | stdcall map_page,esi,eax,dword PG_UW |
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480 | |||
481 | |||
482 | mov edi, esi |
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483 | xor eax, eax |
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484 | mov ecx, 1024 |
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485 | cld |
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486 | rep stosd |
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487 | pop edi |
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488 | |||
489 | |||
490 | cmp esi, edi |
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491 | jna @B |
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492 | |||
493 | |||
494 | .exit: |
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495 | xor eax, eax |
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496 | inc eax |
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497 | dec [pg_data.pg_mutex] |
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498 | ret |
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499 | endp |
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500 | |||
501 | |||
502 | proc get_pg_addr stdcall, lin_addr:dword |
||
503 | mov ebx, [lin_addr] |
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504 | shr ebx, 12 |
||
505 | mov eax, [pages_tab+ebx*4] |
||
506 | and eax, 0xFFFFF000 |
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507 | ret |
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508 | endp |
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509 | |||
510 | |||
188 | serge | 511 | proc page_fault_handler |
164 | serge | 512 | pushad |
513 | |||
514 | |||
515 | mov eax, cr2 |
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516 | push eax |
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172 | serge | 517 | push ds |
164 | serge | 518 | push es |
188 | serge | 519 | |
164 | serge | 520 | |
521 | mov ds, ax |
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522 | mov es, ax |
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188 | serge | 523 | |
164 | serge | 524 | |
188 | serge | 525 | |
526 | |||
164 | serge | 527 | |
528 | |||
529 | jae .lfb_addr |
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530 | |||
531 | |||
532 | jae .user_space |
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533 | |||
534 | |||
188 | serge | 535 | jae .alloc |
536 | |||
537 | |||
164 | serge | 538 | jae .tab_space |
539 | |||
540 | |||
541 | |||
542 | |||
543 | shr ebx, 12 |
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544 | mov ecx, ebx |
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172 | serge | 545 | shr ecx, 10 |
546 | mov edx, [master_tab+ecx*4] |
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547 | test edx, 1 |
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548 | jz .fail |
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549 | |||
550 | |||
164 | serge | 551 | test eax, 2 |
552 | jz .fail |
||
172 | serge | 553 | .alloc: |
188 | serge | 554 | call alloc_page |
164 | serge | 555 | and eax, eax |
556 | jz .exit |
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557 | |||
558 | |||
559 | |||
560 | |||
188 | serge | 561 | and edi, 0xFFFFF000 |
562 | mov ecx, 1024 |
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164 | serge | 563 | xor eax, eax |
564 | cld |
||
188 | serge | 565 | rep stosd |
566 | .exit: |
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164 | serge | 567 | pop es |
188 | serge | 568 | pop ds |
164 | serge | 569 | mov esp, ebp |
570 | popad |
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571 | add esp, 4 |
||
572 | iretd |
||
573 | .fail: |
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172 | serge | 574 | pop es |
188 | serge | 575 | pop ds |
172 | serge | 576 | mov esp, ebp |
577 | popad |
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578 | add esp, 4 |
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579 | |||
164 | serge | 580 | |
172 | serge | 581 | |
582 | |||
583 | jmp exc_c |
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584 | iretd |
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585 | |||
586 | |||
164 | serge | 587 | ; shr ebx, 12 |
188 | serge | 588 | ; mov eax, [pages_tab+ebx*4] |
589 | ; shr ebx, 10 |
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590 | ; mov eax, [master_tab+ebx*4] |
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591 | jmp .exit |
||
592 | .old_addr: |
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164 | serge | 593 | ; shr ebx, 12 |
188 | serge | 594 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 595 | ; shr ebx, 10 |
188 | serge | 596 | ; mov eax, [master_tab+ebx*4] |
597 | jmp .exit |
||
598 | .lfb_addr: |
||
164 | serge | 599 | ; shr ebx, 22 |
188 | serge | 600 | ; ;mov ecx, [sys_page_dir] |
601 | ; mov eax, [master_tab+ebx*4] |
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602 | jmp .exit |
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603 | .tab_space: |
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164 | serge | 604 | ; shr ebx, 12 |
188 | serge | 605 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 606 | ; shr ebx, 10 |
188 | serge | 607 | ; ;mov ecx, [sys_page_dir] |
608 | ; mov eax, [master_tab+ebx*4] |
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609 | jmp .exit |
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610 | endp |
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164 | serge | 611 | |
612 | |||
613 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
614 | ofs:dword,buf_size:dword |
||
615 | mov eax, [buf_size] |
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616 | test eax, eax |
||
617 | jz .exit |
||
618 | |||
619 | |||
620 | and eax, 0xFFFFF000 |
||
621 | |||
622 | |||
623 | mov ebx, [ofs] |
||
624 | shr ebx, 22 |
||
625 | mov esi, [ipc_pdir] |
||
626 | mov edi, [ipc_ptab] |
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627 | mov eax, [esi+ebx*4] |
||
628 | and eax, 0xFFFFF000 |
||
629 | test eax, eax |
||
630 | jz .exit |
||
631 | stdcall map_page,edi,eax,dword PG_UW |
||
632 | ; inc ebx |
||
633 | ; add edi, 0x1000 |
||
634 | ; mov eax, [esi+ebx*4] |
||
635 | ; test eax, eax |
||
636 | ; jz @f |
||
637 | ; and eax, 0xFFFFF000 |
||
638 | ; stdcall map_page, edi, eax |
||
639 | |||
640 | |||
641 | and edi, 0xFFFFF000 |
||
642 | mov ecx, [buf_size] |
||
643 | add ecx, 4095 |
||
644 | shr ecx, 12 |
||
645 | inc ecx |
||
646 | |||
647 | |||
648 | shr edx, 12 |
||
649 | and edx, 0x3FF |
||
650 | mov esi, [ipc_ptab] |
||
651 | |||
652 | |||
653 | and eax, 0xFFFFF000 |
||
654 | test eax, eax |
||
655 | jz .exit |
||
656 | stdcall map_page,edi,eax,dword PG_UW |
||
657 | add edi, 0x1000 |
||
658 | inc edx |
||
659 | dec ecx |
||
660 | jnz .map |
||
661 | |||
662 | |||
663 | ret |
||
664 | endp |
||
665 | |||
666 | |||
667 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
668 | ofs:dword,buf_size:dword |
||
669 | mov eax, [buf_size] |
||
670 | test eax, eax |
||
671 | jz .exit |
||
672 | |||
673 | |||
674 | and eax, 0xFFFFF000 |
||
675 | |||
676 | |||
677 | mov ebx, [ofs] |
||
678 | shr ebx, 22 |
||
679 | mov esi, [proc_mem_pdir] |
||
680 | mov edi, [proc_mem_tab] |
||
681 | mov eax, [esi+ebx*4] |
||
682 | and eax, 0xFFFFF000 |
||
683 | test eax, eax |
||
684 | jz .exit |
||
685 | stdcall map_page,edi,eax,dword PG_UW |
||
686 | |||
687 | |||
688 | and edi, 0xFFFFF000 |
||
689 | mov ecx, [buf_size] |
||
690 | add ecx, 4095 |
||
691 | shr ecx, 12 |
||
692 | inc ecx |
||
693 | |||
694 | |||
695 | shr edx, 12 |
||
696 | and edx, 0x3FF |
||
697 | mov esi, [proc_mem_tab] |
||
698 | |||
699 | |||
700 | ; and eax, 0xFFFFF000 |
||
701 | ; test eax, eax |
||
702 | ; jz .exit |
||
703 | stdcall map_page,edi,eax,dword PG_UW |
||
704 | add edi, 0x1000 |
||
705 | inc edx |
||
706 | dec ecx |
||
707 | jnz .map |
||
708 | .exit: |
||
709 | ret |
||
710 | endp |
||
711 | |||
712 | |||
713 | |||
714 | |||
715 | |||
716 | ;input: |
||
717 | ; eax=1 - set ipc buffer area |
||
718 | ; ebx=address of buffer |
||
719 | ; ecx=size of buffer |
||
720 | ; eax=2 - send message |
||
721 | ; ebx=PID |
||
722 | ; ecx=address of message |
||
723 | ; edx=size of message |
||
724 | |||
725 | |||
726 | jne @f |
||
727 | call set_ipc_buff |
||
728 | mov [esp+36], eax |
||
729 | ret |
||
730 | @@: |
||
731 | cmp eax, 2 |
||
732 | jne @f |
||
733 | stdcall sys_ipc_send, ebx, ecx, edx |
||
734 | mov [esp+36], eax |
||
735 | ret |
||
736 | @@: |
||
737 | xor eax, eax |
||
738 | not eax |
||
739 | mov [esp+36], eax |
||
740 | ret |
||
741 | |||
742 | |||
743 | proc set_ipc_buff |
||
744 | |||
745 | |||
746 | shl eax,8 |
||
747 | add eax, PROC_BASE |
||
748 | pushf |
||
749 | cli |
||
750 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
751 | mov [eax+0xA4],ecx |
||
752 | |||
753 | |||
754 | add ecx, ebx |
||
755 | add ecx, 4095 |
||
756 | and ecx, not 4095 |
||
757 | |||
758 | |||
759 | add ebx, 0x1000 |
||
760 | cmp ebx, ecx |
||
761 | jna .touch |
||
762 | |||
763 | |||
764 | xor eax, eax |
||
765 | ret |
||
766 | endp |
||
767 | |||
768 | |||
769 | locals |
||
770 | dst_slot dd ? |
||
771 | dst_offset dd ? |
||
772 | buf_size dd ? |
||
773 | endl |
||
774 | |||
775 | |||
776 | cli |
||
777 | |||
778 | |||
779 | call pid_to_slot |
||
780 | test eax,eax |
||
781 | jz .no_pid |
||
782 | |||
783 | |||
784 | shl eax,8 |
||
785 | mov edi,[eax+PROC_BASE+0xa0] ;is ipc area defined? |
||
786 | test edi,edi |
||
787 | jz .no_ipc_area |
||
788 | |||
789 | |||
790 | add edi, new_app_base |
||
791 | and ebx, 0xFFF |
||
792 | mov [dst_offset], ebx |
||
793 | |||
794 | |||
795 | mov [buf_size], esi |
||
796 | |||
797 | |||
798 | edi, esi |
||
799 | |||
800 | |||
801 | add edi, [ipc_tmp] |
||
802 | cmp dword [edi], 0 |
||
803 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
804 | mov ebx, dword [edi+4] |
||
805 | mov edx, ebx |
||
806 | add ebx, 8 |
||
807 | add ebx, [msg_size] |
||
808 | cmp ebx, [buf_size] |
||
809 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
810 | mov dword [edi+4], ebx |
||
811 | mov eax,[TASK_BASE] |
||
812 | mov eax, [eax+0x04] ;eax - our PID |
||
813 | mov edi, [dst_offset] |
||
814 | add edi, [ipc_tmp] |
||
815 | add edi, edx |
||
816 | mov [edi], eax |
||
817 | mov ecx, [msg_size] |
||
818 | |||
819 | |||
820 | add edi, 8 |
||
821 | mov esi, [msg_addr] |
||
822 | add esi, new_app_base |
||
823 | cld |
||
824 | rep movsb |
||
825 | |||
826 | |||
827 | mov edx, ebx |
||
828 | shr ebx, 12 |
||
829 | xor eax, eax |
||
830 | mov [pages_tab+ebx*4], eax |
||
831 | invlpg [edx] |
||
832 | |||
833 | |||
834 | mov edx, ebx |
||
835 | shr ebx, 12 |
||
836 | xor eax, eax |
||
837 | mov [pages_tab+ebx*4], eax |
||
838 | invlpg [edx] |
||
839 | |||
840 | |||
841 | mov edx, ebx |
||
842 | shr ebx, 12 |
||
843 | xor eax, eax |
||
844 | mov [pages_tab+ebx*4], eax |
||
845 | invlpg [edx] |
||
846 | |||
847 | |||
848 | shl eax, 8 |
||
849 | or [eax+PROC_BASE+0xA8],dword 0x40 |
||
850 | cmp dword [check_idle_semaphore],20 |
||
851 | jge .ipc_no_cis |
||
852 | |||
853 | |||
854 | .ipc_no_cis: |
||
855 | popf |
||
856 | xor eax, eax |
||
857 | ret |
||
858 | .no_pid: |
||
859 | popf |
||
860 | mov eax, 4 |
||
861 | ret |
||
862 | .no_ipc_area: |
||
863 | popf |
||
864 | xor eax, eax |
||
865 | inc eax |
||
866 | ret |
||
867 | .ipc_blocked: |
||
868 | popf |
||
869 | mov eax, 2 |
||
870 | ret |
||
871 | .buffer_overflow: |
||
872 | popf |
||
873 | mov eax, 3 |
||
874 | ret |
||
875 | endp |
||
876 | |||
877 | |||
878 | sysfn_meminfo: |
||
170 | serge | 879 | |
164 | serge | 880 | |
170 | serge | 881 | cmp ebx, new_app_base |
172 | serge | 882 | jb .fail |
883 | |||
884 | |||
164 | serge | 885 | mov [ebx], eax |
170 | serge | 886 | shl eax, 12 |
172 | serge | 887 | mov [esp+36], eax |
888 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 889 | mov [ebx+4], ecx |
890 | mov edx, [pg_data.pages_faults] |
||
891 | mov [ebx+8], edx |
||
892 | mov esi, [heap_size] |
||
893 | mov [ebx+12], esi |
||
894 | mov edi, [heap_free] |
||
895 | mov [ebx+16], edi |
||
896 | mov eax, [heap_blocks] |
||
897 | mov [ebx+20], eax |
||
898 | mov ecx, [free_blocks] |
||
899 | mov [ebx+24], ecx |
||
900 | ret |
||
164 | serge | 901 | .fail: |
172 | serge | 902 | mov dword [esp+36], -1 |
903 | ret |
||
904 | |||
164 | serge | 905 | |
906 | new_services: |
||
907 | |||
908 | |||
909 | jle sys_sheduler |
||
910 | |||
911 | |||
170 | serge | 912 | jb .fail |
164 | serge | 913 | ja @f |
914 | |||
915 | |||
188 | serge | 916 | mov [esp+36], eax |
164 | serge | 917 | ret |
918 | @@: |
||
919 | cmp eax, 12 |
||
920 | ja @f |
||
921 | |||
922 | |||
923 | mov [esp+36], eax |
||
924 | ret |
||
925 | @@: |
||
926 | cmp eax, 13 |
||
927 | ja @f |
||
928 | add ebx, new_app_base |
||
188 | serge | 929 | stdcall user_free, ebx |
164 | serge | 930 | mov [esp+36], eax |
931 | ret |
||
932 | @@: |
||
933 | cmp eax, 14 |
||
934 | ja @f |
||
935 | add ebx,new_app_base |
||
936 | cmp ebx, new_app_base |
||
172 | serge | 937 | jb .fail |
938 | stdcall get_notify, ebx |
||
164 | serge | 939 | ret |
940 | @@: |
||
941 | cmp eax, 15 |
||
942 | ja @f |
||
943 | mov ecx, [CURRENT_TASK] |
||
944 | shl ecx, 8 |
||
945 | mov eax, [ecx+PROC_BASE+APPDATA.fpu_handler] |
||
946 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], ebx |
||
947 | mov [esp+36], eax |
||
948 | ret |
||
949 | @@: |
||
950 | cmp eax, 16 |
||
951 | ja @f |
||
952 | |||
953 | |||
188 | serge | 954 | jz .fail |
955 | add ebx, new_app_base |
||
164 | serge | 956 | cmp ebx, new_app_base |
172 | serge | 957 | jb .fail |
958 | stdcall get_service, ebx |
||
164 | serge | 959 | mov [esp+36], eax |
960 | ret |
||
961 | @@: |
||
962 | cmp eax, 17 |
||
963 | ja @f |
||
964 | stdcall srv_handlerEx, ebx |
||
965 | mov [esp+36], eax |
||
966 | ret |
||
967 | @@: |
||
168 | serge | 968 | cmp eax, 18 |
969 | ja @f |
||
970 | mov ecx, [CURRENT_TASK] |
||
971 | shl ecx, 8 |
||
972 | mov eax, [ecx+PROC_BASE+APPDATA.sse_handler] |
||
973 | mov [ecx+PROC_BASE+APPDATA.sse_handler], ebx |
||
974 | mov [esp+36], eax |
||
975 | ret |
||
976 | @@: |
||
164 | serge | 977 | cmp eax, 19 |
198 | serge | 978 | ja @f |
979 | add ebx, new_app_base |
||
980 | cmp ebx, new_app_base |
||
981 | jb .fail |
||
982 | stdcall load_library, ebx |
||
983 | mov [esp+36], eax |
||
984 | ret |
||
985 | @@: |
||
986 | .fail: |
||
164 | serge | 987 | xor eax, eax |
988 | mov [esp+36], eax |
||
989 | ret |
||
990 | |||
991 | |||
992 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
||
993 | |||
994 | |||
995 | jecxz .end |
||
996 | |||
997 | |||
998 | |||
999 | |||
1000 | mov esi,edi |
||
1001 | xor eax,eax |
||
1002 | repne scasb |
||
1003 | neg ecx ; cx = count - strlen |
||
1004 | add ecx,ebx ; strlen + count - strlen |
||
1005 | |||
1006 | |||
1007 | mov edi,esi |
||
1008 | mov esi,[str2] |
||
1009 | repe cmpsb |
||
1010 | mov al,[esi-1] |
||
1011 | xor ecx,ecx |
||
1012 | |||
1013 | |||
1014 | ja .str2_big |
||
1015 | je .end |
||
1016 | |||
1017 | |||
1018 | sub ecx,2 |
||
1019 | |||
1020 | |||
1021 | not ecx |
||
1022 | .end: |
||
1023 | mov eax,ecx |
||
1024 | ret |
||
1025 | endp |
||
1026 | |||
1027 | |||
1028 | proc fpu_save |
||
1029 | clts |
||
1030 | mov ebx, [fpu_owner] |
||
1031 | shl ebx, 8 |
||
1032 | mov eax, [ebx+PROC_BASE+0x10] |
||
1033 | mov ebx, [CURRENT_TASK] |
||
1034 | mov [fpu_owner], ebx |
||
1035 | |||
1036 | |||
1037 | jnc .no_SSE |
||
1038 | |||
1039 | |||
1040 | ret |
||
1041 | .no_SSE: |
||
1042 | fnsave [eax] |
||
1043 | ret |
||
1044 | endp |
||
1045 | |||
1046 | |||
1047 | proc fpu_restore |
||
1048 | mov ebx, [CURRENT_TASK] |
||
1049 | shl ebx, 8 |
||
1050 | mov eax, [ebx+PROC_BASE+0x10] |
||
1051 | bt [cpu_caps], CAPS_FXSR |
||
1052 | jnc .no_SSE |
||
1053 | |||
1054 | |||
1055 | ret |
||
1056 | .no_SSE: |
||
1057 | frstor [eax] |
||
1058 | ret |
||
1059 | endp |
||
1060 | |||
1061 | |||
1062 | proc test_cpu |
||
1063 | locals |
||
1064 | cpu_type dd ? |
||
166 | serge | 1065 | cpu_id dd ? |
1066 | cpu_Intel dd ? |
||
1067 | cpu_AMD dd ? |
||
1068 | endl |
||
164 | serge | 1069 | |
1070 | |||
1071 | |||
1072 | |||
1073 | pop eax |
||
1074 | mov ecx, eax |
||
1075 | xor eax, 0x40000 |
||
1076 | push eax |
||
1077 | popfd |
||
1078 | pushfd |
||
1079 | pop eax |
||
1080 | xor eax, ecx |
||
1081 | mov [cpu_type], CPU_386 |
||
1082 | jz .end_cpu |
||
1083 | push ecx |
||
1084 | popfd |
||
1085 | |||
1086 | |||
1087 | mov eax, ecx |
||
1088 | xor eax, 0x200000 |
||
1089 | push eax |
||
1090 | popfd |
||
1091 | pushfd |
||
1092 | pop eax |
||
1093 | xor eax, ecx |
||
1094 | je .end_cpu |
||
1095 | mov [cpu_id], 1 |
||
1096 | |||
1097 | |||
1098 | cpuid |
||
1099 | mov [cpu_vendor], ebx |
||
1100 | mov [cpu_vendor+4], edx |
||
1101 | mov [cpu_vendor+8], ecx |
||
1102 | cmp ebx, dword [intel_str] |
||
1103 | jne .check_AMD |
||
1104 | cmp edx, dword [intel_str+4] |
||
1105 | jne .check_AMD |
||
1106 | cmp ecx, dword [intel_str+8] |
||
1107 | jne .check_AMD |
||
1108 | mov [cpu_Intel], 1 |
||
1109 | cmp eax, 1 |
||
1110 | jl .end_cpuid |
||
1111 | mov eax, 1 |
||
1112 | cpuid |
||
1113 | mov [cpu_sign], eax |
||
1114 | mov [cpu_info], ebx |
||
1115 | mov [cpu_caps], edx |
||
1116 | mov [cpu_caps+4],ecx |
||
1117 | |||
1118 | |||
1119 | and eax, 0x0f |
||
1120 | mov [cpu_type], eax |
||
1121 | ret |
||
1122 | |||
1123 | |||
1124 | mov eax, [cpu_type] |
||
1125 | ret |
||
1126 | |||
1127 | |||
1128 | cmp ebx, dword [AMD_str] |
||
1129 | jne .end_cpu |
||
1130 | cmp edx, dword [AMD_str+4] |
||
1131 | jne .end_cpu |
||
1132 | cmp ecx, dword [AMD_str+8] |
||
1133 | jne .end_cpu |
||
1134 | mov [cpu_AMD], 1 |
||
1135 | cmp eax, 1 |
||
1136 | jl .end_cpuid |
||
1137 | mov eax, 1 |
||
1138 | cpuid |
||
1139 | mov [cpu_sign], eax |
||
1140 | mov [cpu_info], ebx |
||
1141 | mov [cpu_caps], edx |
||
1142 | mov [cpu_caps+4],ecx |
||
1143 | shr eax, 8 |
||
1144 | and eax, 0x0f |
||
1145 | mov [cpu_type], eax |
||
1146 | .end_cpu: |
||
1147 | mov eax, [cpu_type] |
||
1148 | ret |
||
1149 | endp |
||
1150 | |||
1151 | |||
1152 | MEM_WC equ 1 ;write combined memory |
||
1153 | MEM_UC equ 0 ;uncached memory |
||
1154 | |||
1155 | |||
1156 | proc init_mtrr |
||
1157 | |||
1158 | |||
1159 | je .exit |
||
1160 | |||
1161 | |||
1162 | or eax, 0x60000000 ;disable caching |
||
1163 | mov cr0, eax |
||
1164 | wbinvd ;invalidate cache |
||
1165 | |||
1166 | |||
1167 | rdmsr ; |
||
1168 | push eax |
||
1169 | |||
1170 | |||
1171 | xor eax, eax |
||
1172 | mov ecx, 0x2FF |
||
1173 | wrmsr ;disable all MTRR |
||
1174 | |||
1175 | |||
1176 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1177 | xor edx, edx |
||
1178 | xor eax, eax |
||
1179 | mov ecx, 0x204 |
||
1180 | mov ebx, 6 |
||
1181 | @@: |
||
1182 | wrmsr ;disable unused MTRR |
||
1183 | inc ecx |
||
1184 | wrmsr |
||
1185 | inc ecx |
||
1186 | dec ebx |
||
1187 | jnz @b |
||
1188 | |||
1189 | |||
1190 | |||
1191 | |||
1192 | or eax, 0x800 ;set default memtype to UC |
||
1193 | and al, 0xF0 |
||
1194 | mov ecx, 0x2FF |
||
1195 | wrmsr ;and enable MTRR |
||
1196 | |||
1197 | |||
1198 | and eax, not 0x60000000 |
||
1199 | mov cr0, eax ; enable caching |
||
1200 | .exit: |
||
1201 | ret |
||
1202 | endp |
||
1203 | |||
1204 | |||
1205 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1206 | |||
1207 | |||
1208 | mov eax, [base] |
||
1209 | or eax, [mem_type] |
||
1210 | mov ecx, [reg] |
||
1211 | lea ecx, [0x200+ecx*2] |
||
1212 | wrmsr |
||
1213 | |||
1214 | |||
1215 | dec ebx |
||
1216 | mov eax, 0xFFFFFFFF |
||
1217 | mov edx, 0x0000000F |
||
1218 | sub eax, ebx |
||
1219 | sbb edx, 0 |
||
1220 | or eax, 0x800 |
||
1221 | inc ecx |
||
1222 | wrmsr |
||
1223 | ret |
||
1224 | endp |
||
1225 | |||
1226 | |||
172 | serge | 1227 | proc stall stdcall, delay:dword |
1228 | push ecx |
||
1229 | push edx |
||
1230 | push ebx |
||
1231 | push eax |
||
1232 | |||
1233 | |||
1234 | mul [stall_mcs] |
||
1235 | mov ebx, eax ;low |
||
1236 | mov ecx, edx ;high |
||
1237 | rdtsc |
||
1238 | add ebx, eax |
||
1239 | adc ecx,edx |
||
1240 | @@: |
||
1241 | rdtsc |
||
1242 | sub eax, ebx |
||
1243 | sbb edx, ecx |
||
1244 | jb @B |
||
1245 | |||
1246 | |||
1247 | pop ebx |
||
1248 | pop edx |
||
1249 | pop ecx |
||
1250 | ret |
||
1251 | endp |
||
1252 | |||
1253 | |||
164 | serge | 1254 | align 4 |
1255 | intel_str db "GenuineIntel",0 |
||
1256 | AMD_str db "AuthenticAMD",0 |
||
1257 | endg |
||
1258 | |||
1259 | |||
1260 | align 16 |
||
1261 | irq_tab rd 16 |
||
1262 | |||
1263 | |||
1264 | |||
1265 | |||
1266 | |||
1267 | ipc_pdir rd 1 |
||
1268 | ipc_ptab rd 1 |
||
1269 | |||
1270 | |||
1271 | proc_mem_pdir rd 1 |
||
1272 | proc_mem_tab rd 1 |
||
1273 | |||
1274 | |||
1275 | tmp_task_ptab rd 1 |
||
1276 | tmp_task_data rd 1 |
||
1277 | |||
1278 | |||
188 | serge | 1279 | |
164 | serge | 1280 | |
1281 | fdd_buff rd 1 |
||
1282 | |||
1283 | |||
172 | serge | 1284 | ;;CPUID information |
164 | serge | 1285 | |
1286 | |||
1287 | cpu_sign rd 1 |
||
1288 | cpu_info rd 1 |
||
1289 | |||
1290 | |||
1291 | |||
1292 | |||
1293 | align 16 |
||
1294 | dll_tab rb 32*32 |
||
1295 | srv_tab rb 32*32 |
||
1296 | dll_map rd 1 |
||
1297 | srv_map rd 1 |
||
1298 | |||
1299 | |||
1300 | mem_block_list rd 64 |
||
1301 | mem_block_map rb 512 |
||
1302 | mem_block_arr rd 1 |
||
1303 | mem_block_start rd 1 |
||
1304 | mem_block_end rd 1 |
||
1305 | mem_block_mask rd 2 |
||
1306 | heap_size rd 1 |
||
170 | serge | 1307 | heap_free rd 1 |
1308 | heap_blocks rd 1 |
||
1309 | free_blocks rd 1 |
||
1310 | |||
164 | serge | 1311 | |
1312 | page_end rd 1 |
||
1313 | sys_page_map rd 1 |
||
1314 | ; app_load rd 1 |
||
170 | serge | 1315 | endg |
164 | serge | 1316 | |
1317 | |||
1318 | |||
1319 | ; push edx |
||
1320 | ; mov edx, 0x400 ;bocsh |
||
1321 | ; mov al,0xff ;bocsh |
||
1322 | ; out dx, al ;bocsh |
||
1323 | ; pop edx |
||
1324 | ; pop eax0>> |
||
1325 |