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Rev | Author | Line No. | Line |
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425 | victor | 1 | $Revision: 585 $ |
431 | serge | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Distributed under terms of the GNU General Public License ;; |
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6 | ;; ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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94 | mario79 | 8 | |
87 | mario79 | 9 | uglobal |
10 | cd_current_pointer_of_input dd 0 |
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11 | cd_current_pointer_of_input_2 dd 0 |
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585 | mario79 | 12 | cd_mem_location dd 0 |
13 | cd_counter_block dd 0 |
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14 | IDE_Channel_1 db 0 |
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15 | IDE_Channel_2 db 0 |
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87 | mario79 | 16 | endg |
17 | |||
18 | reserve_cd: |
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19 | |||
20 | cli |
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21 | cmp [cd_status],0 |
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585 | mario79 | 22 | je reserve_ok2 |
87 | mario79 | 23 | |
24 | sti |
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25 | call change_task |
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95 | mario79 | 26 | jmp reserve_cd |
87 | mario79 | 27 | |
28 | reserve_ok2: |
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29 | |||
30 | push eax |
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379 | serge | 31 | mov eax,[CURRENT_TASK] |
87 | mario79 | 32 | shl eax,5 |
379 | serge | 33 | mov eax,[eax+CURRENT_TASK+TASKDATA.pid] |
87 | mario79 | 34 | mov [cd_status],eax |
35 | pop eax |
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36 | sti |
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37 | ret |
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95 | mario79 | 38 | |
39 | reserve_cd_channel: |
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40 | cmp [ChannelNumber],1 |
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41 | jne .IDE_Channel_2 |
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42 | .IDE_Channel_1: |
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43 | cli |
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44 | cmp [IDE_Channel_1],0 |
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585 | mario79 | 45 | je .reserve_ok_1 |
95 | mario79 | 46 | sti |
47 | call change_task |
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48 | jmp .IDE_Channel_1 |
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49 | .IDE_Channel_2: |
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50 | cli |
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51 | cmp [IDE_Channel_2],0 |
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585 | mario79 | 52 | je .reserve_ok_2 |
95 | mario79 | 53 | sti |
54 | call change_task |
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55 | jmp .IDE_Channel_1 |
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56 | .reserve_ok_1: |
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57 | mov [IDE_Channel_1],1 |
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58 | ret |
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59 | .reserve_ok_2: |
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60 | mov [IDE_Channel_2],1 |
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61 | ret |
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62 | |||
63 | free_cd_channel: |
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64 | cmp [ChannelNumber],1 |
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65 | jne .IDE_Channel_2 |
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66 | .IDE_Channel_1: |
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379 | serge | 67 | mov [IDE_Channel_1],0 |
95 | mario79 | 68 | ret |
69 | .IDE_Channel_2: |
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70 | mov [IDE_Channel_2],0 |
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71 | ret |
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364 | diamond | 72 | |
379 | serge | 73 | uglobal |
87 | mario79 | 74 | cd_status dd 0 |
364 | diamond | 75 | endg |
87 | mario79 | 76 | |
77 | ;---------------------------------------------------------------- |
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78 | ; |
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79 | ; fs_CdRead - LFN variant for reading CD disk |
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80 | ; |
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81 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
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82 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
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83 | ; may be ebx=0 - start from first byte |
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84 | ; ecx number of bytes to read, 0+ |
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85 | ; edx mem location to return data |
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86 | ; |
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87 | ; ret ebx = bytes read or 0xffffffff file not found |
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88 | ; eax = 0 ok read or other = errormsg |
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89 | ; |
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90 | ;-------------------------------------------------------------- |
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91 | fs_CdRead: |
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92 | push edi |
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93 | cmp byte [esi], 0 |
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94 | jnz @f |
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95 | .noaccess: |
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96 | pop edi |
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97 | .noaccess_2: |
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585 | mario79 | 98 | or ebx, -1 |
87 | mario79 | 99 | mov eax, ERROR_ACCESS_DENIED |
100 | ret |
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379 | serge | 101 | |
87 | mario79 | 102 | .noaccess_3: |
103 | pop eax edx ecx edi |
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104 | jmp .noaccess_2 |
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105 | |||
106 | @@: |
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107 | call cd_find_lfn |
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108 | jnc .found |
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109 | pop edi |
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110 | cmp [DevErrorCode],0 |
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111 | jne .noaccess_2 |
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585 | mario79 | 112 | or ebx, -1 |
87 | mario79 | 113 | mov eax, ERROR_FILE_NOT_FOUND |
114 | ret |
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115 | |||
116 | .found: |
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117 | mov edi,[cd_current_pointer_of_input] |
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585 | mario79 | 118 | test byte [edi+25],10b ; do not allow read directories |
87 | mario79 | 119 | jnz .noaccess |
120 | test ebx, ebx |
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585 | mario79 | 121 | jz .l1 |
87 | mario79 | 122 | cmp dword [ebx+4], 0 |
585 | mario79 | 123 | jz @f |
124 | xor ebx, ebx |
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87 | mario79 | 125 | .reteof: |
126 | mov eax, 6 ; end of file |
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127 | pop edi |
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128 | ret |
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129 | @@: |
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130 | mov ebx, [ebx] |
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131 | .l1: |
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585 | mario79 | 132 | push ecx edx |
133 | push 0 |
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134 | mov eax, [edi+10] ; реальный размер файловой секции |
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135 | sub eax, ebx |
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136 | jb .eof |
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137 | cmp eax, ecx |
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138 | jae @f |
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139 | mov ecx, eax |
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140 | mov byte [esp], 6 |
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87 | mario79 | 141 | @@: |
142 | mov eax,[edi+2] |
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143 | mov [CDSectorAddress],eax |
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144 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
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145 | .new_sector: |
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146 | test ecx, ecx |
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585 | mario79 | 147 | jz .done |
87 | mario79 | 148 | sub ebx, 2048 |
154 | diamond | 149 | jae .next |
87 | mario79 | 150 | add ebx, 2048 |
151 | jnz .incomplete_sector |
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152 | cmp ecx, 2048 |
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585 | mario79 | 153 | jb .incomplete_sector |
87 | mario79 | 154 | ; we may read and memmove complete sector |
155 | mov [CDDataBuf_pointer],edx |
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585 | mario79 | 156 | call ReadCDWRetr ; читаем сектор файла |
87 | mario79 | 157 | cmp [DevErrorCode],0 |
158 | jne .noaccess_3 |
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159 | add edx, 2048 |
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160 | sub ecx, 2048 |
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154 | diamond | 161 | .next: |
162 | inc dword [CDSectorAddress] |
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87 | mario79 | 163 | jmp .new_sector |
164 | .incomplete_sector: |
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165 | ; we must read and memmove incomplete sector |
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166 | mov [CDDataBuf_pointer],CDDataBuf |
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585 | mario79 | 167 | call ReadCDWRetr ; читаем сектор файла |
87 | mario79 | 168 | cmp [DevErrorCode],0 |
379 | serge | 169 | jne .noaccess_3 |
87 | mario79 | 170 | push ecx |
171 | add ecx, ebx |
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172 | cmp ecx, 2048 |
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173 | jbe @f |
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174 | mov ecx, 2048 |
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175 | @@: |
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176 | sub ecx, ebx |
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177 | push edi esi ecx |
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178 | mov edi,edx |
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585 | mario79 | 179 | lea esi, [CDDataBuf + ebx] |
87 | mario79 | 180 | cld |
181 | rep movsb |
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182 | pop ecx esi edi |
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183 | add edx, ecx |
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184 | sub [esp], ecx |
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185 | pop ecx |
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186 | xor ebx, ebx |
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154 | diamond | 187 | jmp .next |
379 | serge | 188 | |
87 | mario79 | 189 | .done: |
585 | mario79 | 190 | mov ebx, edx |
191 | pop eax edx ecx edi |
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192 | sub ebx, edx |
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193 | ret |
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87 | mario79 | 194 | .eof: |
585 | mario79 | 195 | mov ebx, edx |
196 | pop eax edx ecx |
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197 | sub ebx, edx |
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198 | jmp .reteof |
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87 | mario79 | 199 | |
200 | ;---------------------------------------------------------------- |
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201 | ; |
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202 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
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203 | ; |
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204 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
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205 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
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206 | ; & flags (bitfields) |
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207 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
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208 | ; ecx number of blocks to read, 0+ |
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209 | ; edx mem location to return data |
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210 | ; |
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211 | ; ret ebx = blocks read or 0xffffffff folder not found |
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212 | ; eax = 0 ok read or other = errormsg |
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213 | ; |
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214 | ;-------------------------------------------------------------- |
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215 | fs_CdReadFolder: |
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585 | mario79 | 216 | push edi |
217 | call cd_find_lfn |
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218 | jnc .found |
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219 | pop edi |
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220 | cmp [DevErrorCode], 0 |
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221 | jne .noaccess_1 |
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222 | or ebx, -1 |
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223 | mov eax, ERROR_FILE_NOT_FOUND |
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224 | ret |
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87 | mario79 | 225 | .found: |
585 | mario79 | 226 | mov edi, [cd_current_pointer_of_input] |
227 | test byte [edi+25], 10b ; do not allow read directories |
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228 | jnz .found_dir |
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229 | pop edi |
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87 | mario79 | 230 | .noaccess_1: |
585 | mario79 | 231 | or ebx, -1 |
232 | mov eax, ERROR_ACCESS_DENIED |
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233 | ret |
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87 | mario79 | 234 | .found_dir: |
585 | mario79 | 235 | mov eax, [edi+2] ; eax=cluster |
236 | mov [CDSectorAddress], eax |
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237 | mov eax, [edi+10] ; размер директрории |
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87 | mario79 | 238 | .doit: |
239 | ; init header |
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585 | mario79 | 240 | push eax ecx |
241 | mov edi, edx |
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242 | mov ecx, 32/4 |
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243 | xor eax, eax |
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244 | rep stosd |
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245 | pop ecx eax |
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246 | mov byte [edx], 1 ; version |
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247 | mov [cd_mem_location], edx |
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248 | add [cd_mem_location], 32 |
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87 | mario79 | 249 | ; начинаем переброску БДВК в УСВК |
250 | ;.mainloop: |
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585 | mario79 | 251 | mov [cd_counter_block], dword 0 |
252 | dec dword [CDSectorAddress] |
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253 | push ecx |
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87 | mario79 | 254 | .read_to_buffer: |
585 | mario79 | 255 | inc dword [CDSectorAddress] |
256 | mov [CDDataBuf_pointer], CDDataBuf |
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257 | call ReadCDWRetr ; читаем сектор директории |
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258 | cmp [DevErrorCode], 0 |
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259 | jne .noaccess_1 |
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260 | call .get_names_from_buffer |
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261 | sub eax,2048 |
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87 | mario79 | 262 | ; директория закончилась? |
585 | mario79 | 263 | ja .read_to_buffer |
264 | mov edi, [cd_counter_block] |
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265 | mov [edx+8], edi |
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266 | mov edi, [ebx] |
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267 | sub [edx+4], edi |
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268 | xor eax, eax |
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269 | dec ecx |
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270 | js @f |
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271 | mov al, ERROR_END_OF_FILE |
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364 | diamond | 272 | @@: |
585 | mario79 | 273 | pop ecx edi |
274 | mov ebx, [edx+4] |
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275 | ret |
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364 | diamond | 276 | |
87 | mario79 | 277 | .get_names_from_buffer: |
278 | mov [cd_current_pointer_of_input_2],CDDataBuf |
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279 | push eax esi edi edx |
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280 | .get_names_from_buffer_1: |
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281 | call cd_get_name |
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585 | mario79 | 282 | jc .end_buffer |
87 | mario79 | 283 | inc dword [cd_counter_block] |
284 | mov eax,[cd_counter_block] |
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285 | cmp [ebx],eax |
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286 | jae .get_names_from_buffer_1 |
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287 | test ecx, ecx |
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585 | mario79 | 288 | jz .get_names_from_buffer_1 |
87 | mario79 | 289 | mov edi,[cd_counter_block] |
379 | serge | 290 | mov [edx+4],edi |
87 | mario79 | 291 | dec ecx |
292 | mov esi,ebp |
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293 | mov edi,[cd_mem_location] |
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294 | add edi,40 |
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295 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
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296 | jnz .unicode |
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297 | ; jmp .unicode |
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298 | .ansi: |
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299 | cmp [cd_counter_block],2 |
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300 | jbe .ansi_parent_directory |
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301 | cld |
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302 | lodsw |
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303 | xchg ah,al |
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304 | call uni2ansi_char |
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305 | cld |
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306 | stosb |
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307 | ; проверка конца файла |
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96 | mario79 | 308 | mov ax,[esi] |
309 | cmp ax,word 3B00h ; сепаратор конца файла ';' |
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585 | mario79 | 310 | je .cd_get_parameters_of_file_1 |
87 | mario79 | 311 | ; проверка для файлов не заканчивающихся сепаратором |
312 | movzx eax,byte [ebp-33] |
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313 | add eax,ebp |
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314 | sub eax,34 |
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315 | cmp esi,eax |
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585 | mario79 | 316 | je .cd_get_parameters_of_file_1 |
87 | mario79 | 317 | ; проверка конца папки |
318 | movzx eax,byte [ebp-1] |
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319 | add eax,ebp |
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320 | cmp esi,eax |
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585 | mario79 | 321 | jb .ansi |
87 | mario79 | 322 | .cd_get_parameters_of_file_1: |
323 | mov [edi],byte 0 |
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90 | mario79 | 324 | call cd_get_parameters_of_file |
87 | mario79 | 325 | add [cd_mem_location],304 |
326 | jmp .get_names_from_buffer_1 |
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327 | |||
328 | .ansi_parent_directory: |
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329 | cmp [cd_counter_block],2 |
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585 | mario79 | 330 | je @f |
87 | mario79 | 331 | mov [edi],byte '.' |
332 | inc edi |
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333 | jmp .cd_get_parameters_of_file_1 |
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334 | @@: |
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335 | mov [edi],word '..' |
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336 | add edi,2 |
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337 | jmp .cd_get_parameters_of_file_1 |
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338 | |||
339 | .unicode: |
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340 | cmp [cd_counter_block],2 |
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341 | jbe .unicode_parent_directory |
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342 | cld |
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343 | movsw |
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344 | ; проверка конца файла |
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345 | mov ax,[esi] |
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346 | cmp ax,word 3B00h ; сепаратор конца файла ';' |
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585 | mario79 | 347 | je .cd_get_parameters_of_file_2 |
87 | mario79 | 348 | ; проверка для файлов не заканчивающихся сепаратором |
349 | movzx eax,byte [ebp-33] |
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350 | add eax,ebp |
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351 | sub eax,34 |
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352 | cmp esi,eax |
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585 | mario79 | 353 | je .cd_get_parameters_of_file_2 |
87 | mario79 | 354 | ; проверка конца папки |
355 | movzx eax,byte [ebp-1] |
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356 | add eax,ebp |
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357 | cmp esi,eax |
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585 | mario79 | 358 | jb .unicode |
87 | mario79 | 359 | .cd_get_parameters_of_file_2: |
360 | mov [edi],word 0 |
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90 | mario79 | 361 | call cd_get_parameters_of_file |
87 | mario79 | 362 | add [cd_mem_location],560 |
363 | jmp .get_names_from_buffer_1 |
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364 | |||
365 | .unicode_parent_directory: |
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366 | cmp [cd_counter_block],2 |
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585 | mario79 | 367 | je @f |
87 | mario79 | 368 | mov [edi],word 2E00h ; '.' |
369 | add edi,2 |
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370 | jmp .cd_get_parameters_of_file_2 |
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371 | @@: |
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372 | mov [edi],dword 2E002E00h ; '..' |
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373 | add edi,4 |
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374 | jmp .cd_get_parameters_of_file_2 |
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375 | |||
90 | mario79 | 376 | .end_buffer: |
377 | pop edx edi esi eax |
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378 | ret |
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379 | |||
380 | cd_get_parameters_of_file: |
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87 | mario79 | 381 | mov edi,[cd_mem_location] |
90 | mario79 | 382 | cd_get_parameters_of_file_1: |
87 | mario79 | 383 | ; получаем атрибуты файла |
384 | xor eax,eax |
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536 | diamond | 385 | ; файл не архивировался |
386 | inc eax |
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87 | mario79 | 387 | shl eax,1 |
388 | ; это каталог? |
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389 | test [ebp-8],byte 2 |
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585 | mario79 | 390 | jz .file |
536 | diamond | 391 | inc eax |
87 | mario79 | 392 | .file: |
393 | ; метка тома не как в FAT, в этом виде отсутсвует |
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394 | ; файл не является системным |
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395 | shl eax,3 |
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396 | ; файл является скрытым? (атрибут существование) |
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397 | test [ebp-8],byte 1 |
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585 | mario79 | 398 | jz .hidden |
536 | diamond | 399 | inc eax |
87 | mario79 | 400 | .hidden: |
401 | shl eax,1 |
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402 | ; файл всегда только для чтения, так как это CD |
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536 | diamond | 403 | inc eax |
87 | mario79 | 404 | mov [edi],eax |
405 | ; получаем время для файла |
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406 | ;час |
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407 | movzx eax,byte [ebp-12] |
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408 | shl eax,8 |
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409 | ;минута |
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410 | mov al,[ebp-11] |
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411 | shl eax,8 |
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412 | ;секунда |
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413 | mov al,[ebp-10] |
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414 | ;время создания файла |
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415 | mov [edi+8],eax |
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416 | ;время последнего доступа |
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417 | mov [edi+16],eax |
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418 | ;время последней записи |
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419 | mov [edi+24],eax |
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420 | ; получаем дату для файла |
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421 | ;год |
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422 | movzx eax,byte [ebp-15] |
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423 | add eax,1900 |
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424 | shl eax,8 |
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425 | ;месяц |
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426 | mov al,[ebp-14] |
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427 | shl eax,8 |
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428 | ;день |
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429 | mov al,[ebp-13] |
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430 | ;дата создания файла |
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431 | mov [edi+12],eax |
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432 | ;время последнего доступа |
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433 | mov [edi+20],eax |
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434 | ;время последней записи |
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435 | mov [edi+28],eax |
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436 | ; получаем тип данных имени |
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437 | xor eax,eax |
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438 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
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439 | jnz .unicode_1 |
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440 | mov [edi+4],eax |
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441 | jmp @f |
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442 | .unicode_1: |
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443 | inc eax |
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444 | mov [edi+4],eax |
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445 | @@: |
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446 | ; получаем размер файла в байтах |
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447 | xor eax,eax |
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448 | mov [edi+32+4],eax |
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449 | mov eax,[ebp-23] |
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450 | mov [edi+32],eax |
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451 | ret |
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452 | |||
90 | mario79 | 453 | ;---------------------------------------------------------------- |
454 | ; |
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455 | ; fs_CdGetFileInfo - LFN variant for CD |
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456 | ; get file/directory attributes structure |
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379 | serge | 457 | ; |
90 | mario79 | 458 | ;---------------------------------------------------------------- |
459 | fs_CdGetFileInfo: |
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585 | mario79 | 460 | cmp byte [esi], 0 |
461 | jnz @f |
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462 | mov eax, 2 |
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463 | ret |
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90 | mario79 | 464 | @@: |
585 | mario79 | 465 | push edi |
466 | call cd_find_lfn |
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467 | pushfd |
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468 | cmp [DevErrorCode], 0 |
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469 | jz @f |
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470 | popfd |
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471 | pop edi |
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472 | mov eax, 11 |
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473 | ret |
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90 | mario79 | 474 | @@: |
585 | mario79 | 475 | popfd |
476 | jnc @f |
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477 | pop edi |
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478 | mov eax, ERROR_FILE_NOT_FOUND |
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479 | ret |
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90 | mario79 | 480 | @@: |
481 | |||
585 | mario79 | 482 | mov edi, edx |
483 | push ebp |
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484 | mov ebp, [cd_current_pointer_of_input] |
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485 | add ebp, 33 |
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486 | call cd_get_parameters_of_file_1 |
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487 | pop ebp |
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488 | and dword [edi+4], 0 |
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489 | pop edi |
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490 | xor eax, eax |
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491 | ret |
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492 | ;---------------------------------------------------------------- |
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493 | fs_EjectDeviceTray: |
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494 | call clear_CD_cache |
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495 | call allow_medium_removal |
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496 | call EjectMedium |
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497 | ret |
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498 | ;---------------------------------------------------------------- |
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499 | fs_LoadDeviceTray: |
||
500 | call LoadMedium |
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501 | ret |
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502 | ;---------------------------------------------------------------- |
||
90 | mario79 | 503 | |
87 | mario79 | 504 | cd_find_lfn: |
585 | mario79 | 505 | mov [cd_appl_data],0 |
521 | diamond | 506 | ; in: esi+ebp -> name |
87 | mario79 | 507 | ; out: CF=1 - file not found |
508 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
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585 | mario79 | 509 | push eax esi |
87 | mario79 | 510 | ; 16 сектор начало набора дескрипторов томов |
585 | mario79 | 511 | mov [CDSectorAddress],dword 15 |
512 | mov [CDDataBuf_pointer],CDDataBuf |
||
513 | call prevent_medium_removal |
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87 | mario79 | 514 | .start: |
585 | mario79 | 515 | inc dword [CDSectorAddress] |
516 | call ReadCDWRetr ;_1 |
||
87 | mario79 | 517 | cmp [DevErrorCode],0 |
518 | jne .access_denied |
||
519 | ; проверка на вшивость |
||
585 | mario79 | 520 | cmp [CDDataBuf+1],dword 'CD00' |
521 | jne .access_denied |
||
522 | cmp [CDDataBuf+5],byte '1' |
||
523 | jne .access_denied |
||
87 | mario79 | 524 | ; сектор является терминатором набор дескрипторов томов? |
585 | mario79 | 525 | cmp [CDDataBuf],byte 0xff |
526 | je .access_denied |
||
87 | mario79 | 527 | ; сектор является дополнительным и улучшенным дескриптором тома? |
585 | mario79 | 528 | cmp [CDDataBuf],byte 0x2 |
529 | jne .start |
||
87 | mario79 | 530 | ; сектор является дополнительным дескриптором тома? |
585 | mario79 | 531 | cmp [CDDataBuf+6],byte 0x1 |
532 | jne .start |
||
87 | mario79 | 533 | ; параметры root директрории |
585 | mario79 | 534 | mov eax,[CDDataBuf+0x9c+2] ; начало root директрории |
535 | mov [CDSectorAddress],eax |
||
536 | mov eax,[CDDataBuf+0x9c+10] ; размер root директрории |
||
537 | cmp byte [esi], 0 |
||
538 | jnz @f |
||
539 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
||
540 | jmp .done |
||
87 | mario79 | 541 | @@: |
542 | ; начинаем поиск |
||
543 | .mainloop: |
||
585 | mario79 | 544 | dec dword [CDSectorAddress] |
87 | mario79 | 545 | .read_to_buffer: |
585 | mario79 | 546 | inc dword [CDSectorAddress] |
547 | mov [CDDataBuf_pointer],CDDataBuf |
||
548 | call ReadCDWRetr ; читаем сектор директории |
||
549 | cmp [DevErrorCode],0 |
||
550 | jne .access_denied |
||
551 | push ebp |
||
552 | call cd_find_name_in_buffer |
||
553 | pop ebp |
||
554 | jnc .found |
||
555 | sub eax,2048 |
||
87 | mario79 | 556 | ; директория закончилась? |
585 | mario79 | 557 | cmp eax,0 |
558 | ja .read_to_buffer |
||
87 | mario79 | 559 | ; нет искомого элемента цепочки |
560 | .access_denied: |
||
585 | mario79 | 561 | pop esi eax |
562 | mov [cd_appl_data],1 |
||
563 | stc |
||
564 | ret |
||
87 | mario79 | 565 | ; искомый элемент цепочки найден |
566 | .found: |
||
567 | ; конец пути файла |
||
585 | mario79 | 568 | cmp byte [esi-1], 0 |
569 | jz .done |
||
521 | diamond | 570 | .nested: |
585 | mario79 | 571 | mov eax,[cd_current_pointer_of_input] |
572 | push dword [eax+2] |
||
573 | pop dword [CDSectorAddress] ; начало директории |
||
574 | mov eax,[eax+2+8] ; размер директории |
||
575 | jmp .mainloop |
||
87 | mario79 | 576 | ; указатель файла найден |
577 | .done: |
||
585 | mario79 | 578 | test ebp, ebp |
579 | jz @f |
||
580 | mov esi, ebp |
||
581 | xor ebp, ebp |
||
582 | jmp .nested |
||
521 | diamond | 583 | @@: |
585 | mario79 | 584 | pop esi eax |
585 | mov [cd_appl_data],1 |
||
586 | clc |
||
587 | ret |
||
379 | serge | 588 | |
87 | mario79 | 589 | cd_find_name_in_buffer: |
585 | mario79 | 590 | mov [cd_current_pointer_of_input_2],CDDataBuf |
87 | mario79 | 591 | .start: |
585 | mario79 | 592 | call cd_get_name |
593 | jc .not_found |
||
594 | call cd_compare_name |
||
595 | jc .start |
||
379 | serge | 596 | .found: |
585 | mario79 | 597 | clc |
598 | ret |
||
87 | mario79 | 599 | .not_found: |
585 | mario79 | 600 | stc |
601 | ret |
||
87 | mario79 | 602 | |
603 | cd_get_name: |
||
585 | mario79 | 604 | push eax |
605 | mov ebp,[cd_current_pointer_of_input_2] |
||
606 | mov [cd_current_pointer_of_input],ebp |
||
607 | mov eax,[ebp] |
||
608 | cmp eax,0 ; входы закончились? |
||
609 | je .next_sector |
||
610 | cmp ebp,CDDataBuf+2048 ; буфер закончился? |
||
611 | jae .next_sector |
||
612 | movzx eax, byte [ebp] |
||
613 | add [cd_current_pointer_of_input_2],eax ; следующий вход каталога |
||
614 | add ebp,33 ; указатель установлен на начало имени |
||
615 | pop eax |
||
616 | clc |
||
617 | ret |
||
87 | mario79 | 618 | .next_sector: |
585 | mario79 | 619 | pop eax |
620 | stc |
||
621 | ret |
||
87 | mario79 | 622 | |
623 | cd_compare_name: |
||
624 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
||
625 | ; in: esi->name, ebp->name |
||
626 | ; out: if names match: ZF=1 and esi->next component of name |
||
627 | ; else: ZF=0, esi is not changed |
||
628 | ; destroys eax |
||
379 | serge | 629 | push esi eax edi |
87 | mario79 | 630 | mov edi,ebp |
631 | .loop: |
||
632 | cld |
||
633 | lodsb |
||
536 | diamond | 634 | push eax |
99 | mario79 | 635 | call char_todown |
87 | mario79 | 636 | call ansi2uni_char |
637 | xchg ah,al |
||
638 | scasw |
||
536 | diamond | 639 | pop eax |
585 | mario79 | 640 | je .coincides |
99 | mario79 | 641 | call char_toupper |
87 | mario79 | 642 | call ansi2uni_char |
643 | xchg ah,al |
||
644 | sub edi,2 |
||
645 | scasw |
||
646 | jne .name_not_coincide |
||
647 | .coincides: |
||
648 | cmp [esi],byte '/' ; разделитель пути, конец имени текущего элемента |
||
585 | mario79 | 649 | je .done |
650 | cmp [esi],byte 0 ; разделитель пути, конец имени текущего элемента |
||
651 | je .done |
||
87 | mario79 | 652 | jmp .loop |
653 | .name_not_coincide: |
||
654 | pop edi eax esi |
||
655 | stc |
||
656 | ret |
||
657 | .done: |
||
658 | ; проверка конца файла |
||
659 | cmp [edi],word 3B00h ; сепаратор конца файла ';' |
||
585 | mario79 | 660 | je .done_1 |
87 | mario79 | 661 | ; проверка для файлов не заканчивающихся сепаратором |
662 | movzx eax,byte [ebp-33] |
||
663 | add eax,ebp |
||
664 | sub eax,34 |
||
665 | cmp edi,eax |
||
585 | mario79 | 666 | je .done_1 |
87 | mario79 | 667 | ; проверка конца папки |
668 | movzx eax,byte [ebp-1] |
||
669 | add eax,ebp |
||
670 | cmp edi,eax |
||
671 | jne .name_not_coincide |
||
672 | .done_1: |
||
673 | pop edi eax |
||
674 | add esp,4 |
||
675 | inc esi |
||
676 | clc |
||
677 | ret |
||
379 | serge | 678 | |
87 | mario79 | 679 | char_todown: |
680 | ; convert character to uppercase, using cp866 encoding |
||
681 | ; in: al=symbol |
||
682 | ; out: al=converted symbol |
||
585 | mario79 | 683 | cmp al, 'A' |
684 | jb .ret |
||
685 | cmp al, 'Z' |
||
686 | jbe .az |
||
687 | cmp al, 'Ђ' |
||
688 | jb .ret |
||
689 | cmp al, 'ђ' |
||
690 | jb .rus1 |
||
691 | cmp al, 'џ' |
||
692 | ja .ret |
||
87 | mario79 | 693 | ; 0x90-0x9F -> 0xE0-0xEF |
585 | mario79 | 694 | add al, 'а'-'ђ' |
87 | mario79 | 695 | .ret: |
585 | mario79 | 696 | ret |
87 | mario79 | 697 | .rus1: |
698 | ; 0x80-0x8F -> 0xA0-0xAF |
||
699 | .az: |
||
585 | mario79 | 700 | add al, 0x20 |
701 | ret |
||
379 | serge | 702 | |
87 | mario79 | 703 | uni2ansi_char: |
704 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
||
705 | ; in: ax=UNICODE character |
||
706 | ; out: al=converted ANSI character |
||
585 | mario79 | 707 | cmp ax, 0x80 |
708 | jb .ascii |
||
709 | cmp ax, 0x401 |
||
710 | jz .yo1 |
||
711 | cmp ax, 0x451 |
||
712 | jz .yo2 |
||
713 | cmp ax, 0x410 |
||
714 | jb .unk |
||
715 | cmp ax, 0x440 |
||
716 | jb .rus1 |
||
717 | cmp ax, 0x450 |
||
718 | jb .rus2 |
||
87 | mario79 | 719 | .unk: |
585 | mario79 | 720 | mov al, '_' |
721 | jmp .doit |
||
87 | mario79 | 722 | .yo1: |
585 | mario79 | 723 | mov al, 'р' |
724 | jmp .doit |
||
87 | mario79 | 725 | .yo2: |
585 | mario79 | 726 | mov al, 'с' |
727 | jmp .doit |
||
87 | mario79 | 728 | .rus1: |
729 | ; 0x410-0x43F -> 0x80-0xAF |
||
585 | mario79 | 730 | add al, 0x70 |
731 | jmp .doit |
||
87 | mario79 | 732 | .rus2: |
733 | ; 0x440-0x44F -> 0xE0-0xEF |
||
585 | mario79 | 734 | add al, 0xA0 |
87 | mario79 | 735 | .ascii: |
736 | .doit: |
||
585 | mario79 | 737 | ret |