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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1289 | diamond | 3 | ;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
593 | mikedld | 8 | $Revision: 1379 $ |
9 | |||
10 | |||
521 | diamond | 11 | image_of_eax EQU esp+36 |
12 | image_of_ebx EQU esp+24 |
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488 | spraid | 13 | |
72 | diamond | 14 | ; System function 70 - files with long names (LFN) |
71 | diamond | 15 | ; diamond, 2006 |
16 | |||
17 | iglobal |
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18 | ; in this table names must be in lowercase |
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19 | rootdirs: |
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585 | mario79 | 20 | db 2,'rd' |
21 | dd fs_OnRamdisk |
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22 | dd fs_NextRamdisk |
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23 | db 7,'ramdisk' |
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24 | dd fs_OnRamdisk |
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25 | dd fs_NextRamdisk |
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26 | db 2,'fd' |
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27 | dd fs_OnFloppy |
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28 | dd fs_NextFloppy |
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29 | db 10,'floppydisk' |
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30 | dd fs_OnFloppy |
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31 | dd fs_NextFloppy |
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32 | db 3,'hd0' |
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33 | dd fs_OnHd0 |
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34 | dd fs_NextHd0 |
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35 | db 3,'hd1' |
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36 | dd fs_OnHd1 |
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37 | dd fs_NextHd1 |
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38 | db 3,'hd2' |
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39 | dd fs_OnHd2 |
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40 | dd fs_NextHd2 |
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41 | db 3,'hd3' |
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42 | dd fs_OnHd3 |
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43 | dd fs_NextHd3 |
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87 | mario79 | 44 | ;********************************************** |
585 | mario79 | 45 | db 3,'cd0' |
46 | dd fs_OnCd0 |
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47 | dd fs_NextCd |
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48 | db 3,'cd1' |
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49 | dd fs_OnCd1 |
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50 | dd fs_NextCd |
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51 | db 3,'cd2' |
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52 | dd fs_OnCd2 |
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53 | dd fs_NextCd |
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54 | db 3,'cd3' |
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55 | dd fs_OnCd3 |
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56 | dd fs_NextCd |
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237 | serge | 57 | ;*********************************************** |
585 | mario79 | 58 | db 0 |
75 | diamond | 59 | |
87 | mario79 | 60 | |
75 | diamond | 61 | virtual_root_query: |
585 | mario79 | 62 | dd fs_HasRamdisk |
63 | db 'rd',0 |
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64 | dd fs_HasFloppy |
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65 | db 'fd',0 |
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66 | dd fs_HasHd0 |
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67 | db 'hd0',0 |
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68 | dd fs_HasHd1 |
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69 | db 'hd1',0 |
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70 | dd fs_HasHd2 |
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71 | db 'hd2',0 |
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72 | dd fs_HasHd3 |
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73 | db 'hd3',0 |
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87 | mario79 | 74 | ;********************************************** |
585 | mario79 | 75 | dd fs_HasCd0 |
76 | db 'cd0',0 |
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77 | dd fs_HasCd1 |
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78 | db 'cd1',0 |
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79 | dd fs_HasCd2 |
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80 | db 'cd2',0 |
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81 | dd fs_HasCd3 |
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82 | db 'cd3',0 |
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87 | mario79 | 83 | ;********************************************** |
585 | mario79 | 84 | dd 0 |
709 | diamond | 85 | |
86 | fs_additional_handlers: |
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87 | dd biosdisk_handler, biosdisk_enum_root |
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88 | ; add new handlers here |
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89 | dd 0 |
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90 | |||
71 | diamond | 91 | endg |
92 | |||
93 | file_system_lfn: |
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94 | ; in: eax->fileinfo block |
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95 | ; operation codes: |
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72 | diamond | 96 | ; 0 : read file |
75 | diamond | 97 | ; 1 : read folder |
83 | diamond | 98 | ; 2 : create/rewrite file |
133 | diamond | 99 | ; 3 : write/append to file |
100 | ; 4 : set end of file |
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86 | diamond | 101 | ; 5 : get file/directory attributes structure |
102 | ; 6 : set file/directory attributes structure |
||
91 | diamond | 103 | ; 7 : start application |
171 | diamond | 104 | ; 8 : delete file |
321 | diamond | 105 | ; 9 : create directory |
71 | diamond | 106 | |
1379 | turbanoff | 107 | ; parse file name |
585 | mario79 | 108 | xchg ebx, eax |
109 | lea esi, [ebx+20] |
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110 | lodsb |
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111 | test al, al |
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112 | jnz @f |
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113 | mov esi, [esi] |
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114 | lodsb |
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84 | diamond | 115 | @@: |
585 | mario79 | 116 | cmp al, '/' |
117 | jz .notcurdir |
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118 | dec esi |
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119 | mov ebp, esi |
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120 | test al, al |
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121 | jnz @f |
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122 | xor ebp, ebp |
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521 | diamond | 123 | @@: |
585 | mario79 | 124 | mov esi, [current_slot] |
125 | mov esi, [esi+APPDATA.cur_dir] |
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126 | jmp .parse_normal |
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521 | diamond | 127 | .notcurdir: |
585 | mario79 | 128 | cmp byte [esi], 0 |
129 | jz .rootdir |
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130 | call process_replace_file_name |
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521 | diamond | 131 | .parse_normal: |
585 | mario79 | 132 | cmp dword [ebx], 7 |
133 | jne @F |
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134 | mov edx, [ebx+4] |
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135 | mov ebx, [ebx+8] |
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136 | call fs_execute ; esi+ebp, ebx, edx |
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137 | mov [image_of_eax], eax |
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138 | ret |
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237 | serge | 139 | @@: |
585 | mario79 | 140 | mov edi, rootdirs-8 |
141 | xor ecx, ecx |
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142 | push esi |
||
71 | diamond | 143 | .scan1: |
585 | mario79 | 144 | pop esi |
145 | add edi, ecx |
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146 | scasd |
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147 | scasd |
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148 | mov cl, byte [edi] |
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149 | test cl, cl |
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709 | diamond | 150 | jz .notfound_try |
585 | mario79 | 151 | inc edi |
152 | push esi |
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71 | diamond | 153 | @@: |
585 | mario79 | 154 | lodsb |
155 | or al, 20h |
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156 | scasb |
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157 | loopz @b |
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158 | jnz .scan1 |
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159 | lodsb |
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160 | cmp al, '/' |
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161 | jz .found1 |
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162 | test al, al |
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163 | jnz .scan1 |
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164 | pop eax |
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71 | diamond | 165 | ; directory /xxx |
166 | .maindir: |
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709 | diamond | 167 | mov esi, [edi+4] |
168 | .maindir_noesi: |
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585 | mario79 | 169 | cmp dword [ebx], 1 |
170 | jnz .access_denied |
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171 | xor eax, eax |
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1378 | turbanoff | 172 | mov ebp, [ebx+12] ;количество блоков для считывания |
173 | mov edx, [ebx+16] ;куда записывать рузельтат |
||
465 | serge | 174 | ; add edx, std_application_base_address |
585 | mario79 | 175 | push dword [ebx+4] ; first block |
176 | mov ebx, [ebx+8] ; flags |
||
78 | diamond | 177 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 178 | mov edi, edx |
709 | diamond | 179 | push ecx |
585 | mario79 | 180 | mov ecx, 32/4 |
181 | rep stosd |
||
709 | diamond | 182 | pop ecx |
585 | mario79 | 183 | mov byte [edx], 1 ; version |
75 | diamond | 184 | .maindir_loop: |
1379 | turbanoff | 185 | call esi |
585 | mario79 | 186 | jc .maindir_done |
187 | inc dword [edx+8] |
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188 | dec dword [esp] |
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189 | jns .maindir_loop |
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190 | dec ebp |
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191 | js .maindir_loop |
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192 | inc dword [edx+4] |
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193 | mov dword [edi], 0x10 ; attributes: folder |
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194 | mov dword [edi+4], 1 ; name type: UNICODE |
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195 | push eax |
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196 | xor eax, eax |
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197 | add edi, 8 |
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709 | diamond | 198 | push ecx |
585 | mario79 | 199 | mov ecx, 40/4-2 |
200 | rep stosd |
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709 | diamond | 201 | pop ecx |
585 | mario79 | 202 | pop eax |
203 | push eax edx |
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75 | diamond | 204 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 205 | push edi |
709 | diamond | 206 | push ecx |
585 | mario79 | 207 | push -'0' |
709 | diamond | 208 | mov ecx, 10 |
75 | diamond | 209 | @@: |
585 | mario79 | 210 | xor edx, edx |
211 | div ecx |
||
212 | push edx |
||
213 | test eax, eax |
||
214 | jnz @b |
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75 | diamond | 215 | @@: |
585 | mario79 | 216 | pop eax |
217 | add al, '0' |
||
218 | stosb |
||
219 | test bl, 1 ; UNICODE name? |
||
220 | jz .ansi2 |
||
221 | mov byte [edi], 0 |
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222 | inc edi |
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78 | diamond | 223 | .ansi2: |
585 | mario79 | 224 | test al, al |
225 | jnz @b |
||
226 | mov byte [edi-1], 0 |
||
709 | diamond | 227 | pop ecx |
585 | mario79 | 228 | pop edi |
78 | diamond | 229 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 230 | add edi, 520 |
231 | test bl, 1 |
||
232 | jnz @f |
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233 | sub edi, 520-264 |
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78 | diamond | 234 | @@: |
585 | mario79 | 235 | pop edx eax |
236 | jmp .maindir_loop |
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75 | diamond | 237 | .maindir_done: |
585 | mario79 | 238 | pop eax |
239 | mov ebx, [edx+4] |
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240 | xor eax, eax |
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241 | dec ebp |
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242 | js @f |
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243 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 244 | @@: |
585 | mario79 | 245 | mov [image_of_eax], eax |
246 | mov [image_of_ebx], ebx |
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247 | ret |
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71 | diamond | 248 | ; directory / |
249 | .rootdir: |
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585 | mario79 | 250 | cmp dword [ebx], 1 ; read folder? |
251 | jz .readroot |
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75 | diamond | 252 | .access_denied: |
585 | mario79 | 253 | mov dword [image_of_eax], 10 ; access denied |
254 | ret |
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71 | diamond | 255 | |
75 | diamond | 256 | .readroot: |
257 | ; virtual root folder - special handler |
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585 | mario79 | 258 | mov esi, virtual_root_query |
259 | mov ebp, [ebx+12] |
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260 | mov edx, [ebx+16] |
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465 | serge | 261 | ; add edx, std_application_base_address |
585 | mario79 | 262 | push dword [ebx+4] ; first block |
263 | mov ebx, [ebx+8] ; flags |
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264 | xor eax, eax |
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78 | diamond | 265 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 266 | mov edi, edx |
267 | mov ecx, 32/4 |
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268 | rep stosd |
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269 | mov byte [edx], 1 ; version |
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75 | diamond | 270 | .readroot_loop: |
585 | mario79 | 271 | cmp dword [esi], eax |
709 | diamond | 272 | jz .readroot_done_static |
585 | mario79 | 273 | call dword [esi] |
274 | add esi, 4 |
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275 | test eax, eax |
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276 | jnz @f |
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75 | diamond | 277 | .readroot_next: |
585 | mario79 | 278 | or ecx, -1 |
279 | xchg esi, edi |
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280 | repnz scasb |
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281 | xchg esi, edi |
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282 | jmp .readroot_loop |
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75 | diamond | 283 | @@: |
585 | mario79 | 284 | xor eax, eax |
285 | inc dword [edx+8] |
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286 | dec dword [esp] |
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287 | jns .readroot_next |
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288 | dec ebp |
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289 | js .readroot_next |
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290 | inc dword [edx+4] |
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291 | mov dword [edi], 0x10 ; attributes: folder |
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709 | diamond | 292 | mov dword [edi+4], ebx ; name type: UNICODE |
585 | mario79 | 293 | add edi, 8 |
294 | mov ecx, 40/4-2 |
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295 | rep stosd |
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296 | push edi |
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75 | diamond | 297 | @@: |
585 | mario79 | 298 | lodsb |
299 | stosb |
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300 | test bl, 1 |
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301 | jz .ansi |
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302 | mov byte [edi], 0 |
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303 | inc edi |
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78 | diamond | 304 | .ansi: |
585 | mario79 | 305 | test eax, eax |
306 | jnz @b |
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307 | pop edi |
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308 | add edi, 520 |
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309 | test bl, 1 |
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310 | jnz .readroot_loop |
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311 | sub edi, 520-264 |
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312 | jmp .readroot_loop |
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709 | diamond | 313 | .readroot_done_static: |
314 | mov esi, fs_additional_handlers-8 |
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315 | sub esp, 16 |
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316 | .readroot_ah_loop: |
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317 | add esi, 8 |
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318 | cmp dword [esi], 0 |
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319 | jz .readroot_done |
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320 | xor eax, eax |
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321 | .readroot_ah_loop2: |
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322 | push edi |
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323 | lea edi, [esp+4] |
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324 | call dword [esi+4] |
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325 | pop edi |
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326 | test eax, eax |
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327 | jz .readroot_ah_loop |
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328 | inc dword [edx+8] |
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329 | dec dword [esp+16] |
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330 | jns .readroot_ah_loop2 |
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331 | dec ebp |
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332 | js .readroot_ah_loop2 |
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333 | push eax |
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334 | xor eax, eax |
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335 | inc dword [edx+4] |
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336 | mov dword [edi], 0x10 ; attributes: folder |
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337 | mov dword [edi+4], ebx |
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338 | add edi, 8 |
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339 | mov ecx, 40/4-2 |
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340 | rep stosd |
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341 | push esi edi |
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342 | lea esi, [esp+12] |
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343 | @@: |
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344 | lodsb |
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345 | stosb |
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346 | test bl, 1 |
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347 | jz .ansi3 |
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348 | mov byte [edi], 0 |
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349 | inc edi |
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350 | .ansi3: |
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351 | test al, al |
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352 | jnz @b |
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353 | pop edi esi eax |
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354 | add edi, 520 |
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355 | test bl, 1 |
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356 | jnz .readroot_ah_loop2 |
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357 | sub edi, 520-264 |
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358 | jmp .readroot_ah_loop2 |
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75 | diamond | 359 | .readroot_done: |
709 | diamond | 360 | add esp, 16 |
585 | mario79 | 361 | pop eax |
362 | mov ebx, [edx+4] |
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363 | xor eax, eax |
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364 | dec ebp |
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365 | js @f |
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366 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 367 | @@: |
585 | mario79 | 368 | mov [image_of_eax], eax |
369 | mov [image_of_ebx], ebx |
||
370 | ret |
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709 | diamond | 371 | .notfound_try: |
372 | mov edi, fs_additional_handlers |
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373 | @@: |
||
374 | cmp dword [edi], 0 |
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1270 | diamond | 375 | jz .notfound |
709 | diamond | 376 | call dword [edi] |
377 | scasd |
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378 | scasd |
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379 | jmp @b |
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521 | diamond | 380 | .notfound: |
585 | mario79 | 381 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
382 | and dword [image_of_ebx], 0 |
||
383 | ret |
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75 | diamond | 384 | |
709 | diamond | 385 | .notfounda: |
386 | cmp edi, esp |
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387 | jnz .notfound |
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388 | add esp, 8 |
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389 | jmp .notfound |
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390 | |||
71 | diamond | 391 | .found1: |
585 | mario79 | 392 | pop eax |
393 | cmp byte [esi], 0 |
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394 | jz .maindir |
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709 | diamond | 395 | .found2: |
71 | diamond | 396 | ; read partition number |
585 | mario79 | 397 | xor ecx, ecx |
398 | xor eax, eax |
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71 | diamond | 399 | @@: |
585 | mario79 | 400 | lodsb |
401 | cmp al, '/' |
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402 | jz .done1 |
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403 | test al, al |
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404 | jz .done1 |
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405 | sub al, '0' |
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406 | cmp al, 9 |
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709 | diamond | 407 | ja .notfounda |
585 | mario79 | 408 | lea ecx, [ecx*5] |
409 | lea ecx, [ecx*2+eax] |
||
410 | jmp @b |
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71 | diamond | 411 | .done1: |
709 | diamond | 412 | jecxz .notfounda |
585 | mario79 | 413 | test al, al |
414 | jnz @f |
||
415 | dec esi |
||
71 | diamond | 416 | @@: |
585 | mario79 | 417 | cmp byte [esi], 0 |
418 | jnz @f |
||
419 | test ebp, ebp |
||
420 | jz @f |
||
421 | mov esi, ebp |
||
422 | xor ebp, ebp |
||
521 | diamond | 423 | @@: |
75 | diamond | 424 | ; now [edi] contains handler address, ecx - partition number, |
425 | ; esi points to ASCIIZ string - rest of name |
||
585 | mario79 | 426 | jmp dword [edi] |
71 | diamond | 427 | |
428 | ; handlers for devices |
||
75 | diamond | 429 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 430 | ; in: ecx = partition number |
431 | ; esi -> relative (for device) name |
||
432 | ; ebx -> fileinfo |
||
521 | diamond | 433 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 434 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 435 | |
436 | fs_OnRamdisk: |
||
585 | mario79 | 437 | cmp ecx, 1 |
438 | jnz file_system_lfn.notfound |
||
439 | mov eax, [ebx] |
||
440 | cmp eax, fs_NumRamdiskServices |
||
441 | jae .not_impl |
||
442 | mov ecx, [ebx+12] |
||
443 | mov edx, [ebx+16] |
||
465 | serge | 444 | ; add edx, std_application_base_address |
585 | mario79 | 445 | add ebx, 4 |
446 | call dword [fs_RamdiskServices + eax*4] |
||
447 | mov [image_of_eax], eax |
||
448 | mov [image_of_ebx], ebx |
||
449 | ret |
||
71 | diamond | 450 | .not_impl: |
585 | mario79 | 451 | mov dword [image_of_eax], 2 ; not implemented |
452 | ret |
||
71 | diamond | 453 | |
86 | diamond | 454 | fs_NotImplemented: |
585 | mario79 | 455 | mov eax, 2 |
456 | ret |
||
86 | diamond | 457 | |
71 | diamond | 458 | fs_RamdiskServices: |
585 | mario79 | 459 | dd fs_RamdiskRead |
460 | dd fs_RamdiskReadFolder |
||
461 | dd fs_RamdiskRewrite |
||
462 | dd fs_RamdiskWrite |
||
463 | dd fs_RamdiskSetFileEnd |
||
464 | dd fs_RamdiskGetFileInfo |
||
465 | dd fs_RamdiskSetFileInfo |
||
466 | dd 0 |
||
467 | dd fs_RamdiskDelete |
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468 | dd fs_RamdiskCreateFolder |
||
83 | diamond | 469 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 470 | |
471 | fs_OnFloppy: |
||
585 | mario79 | 472 | cmp ecx, 2 |
473 | ja file_system_lfn.notfound |
||
474 | mov eax, [ebx] |
||
475 | cmp eax, fs_NumFloppyServices |
||
476 | jae fs_OnRamdisk.not_impl |
||
477 | call reserve_flp |
||
478 | mov [flp_number], cl |
||
479 | mov ecx, [ebx+12] |
||
480 | mov edx, [ebx+16] |
||
465 | serge | 481 | ; add edx, std_application_base_address |
585 | mario79 | 482 | add ebx, 4 |
483 | call dword [fs_FloppyServices + eax*4] |
||
484 | and [flp_status], 0 |
||
485 | mov [image_of_eax], eax |
||
486 | mov [image_of_ebx], ebx |
||
487 | ret |
||
71 | diamond | 488 | |
489 | fs_FloppyServices: |
||
585 | mario79 | 490 | dd fs_FloppyRead |
491 | dd fs_FloppyReadFolder |
||
492 | dd fs_FloppyRewrite |
||
493 | dd fs_FloppyWrite |
||
494 | dd fs_FloppySetFileEnd |
||
495 | dd fs_FloppyGetFileInfo |
||
496 | dd fs_FloppySetFileInfo |
||
497 | dd 0 |
||
498 | dd fs_FloppyDelete |
||
499 | dd fs_FloppyCreateFolder |
||
83 | diamond | 500 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 501 | |
502 | fs_OnHd0: |
||
585 | mario79 | 503 | call reserve_hd1 |
504 | mov [hdbase], 0x1F0 |
||
505 | mov [hdid], 0 |
||
506 | push 1 |
||
507 | jmp fs_OnHd |
||
71 | diamond | 508 | fs_OnHd1: |
585 | mario79 | 509 | call reserve_hd1 |
510 | mov [hdbase], 0x1F0 |
||
511 | mov [hdid], 0x10 |
||
512 | push 2 |
||
513 | jmp fs_OnHd |
||
71 | diamond | 514 | fs_OnHd2: |
585 | mario79 | 515 | call reserve_hd1 |
516 | mov [hdbase], 0x170 |
||
517 | mov [hdid], 0 |
||
518 | push 3 |
||
519 | jmp fs_OnHd |
||
71 | diamond | 520 | fs_OnHd3: |
585 | mario79 | 521 | call reserve_hd1 |
522 | mov [hdbase], 0x170 |
||
523 | mov [hdid], 0x10 |
||
524 | push 4 |
||
71 | diamond | 525 | fs_OnHd: |
585 | mario79 | 526 | call reserve_hd_channel |
527 | pop eax |
||
528 | mov [hdpos], eax |
||
529 | cmp ecx, 0x100 |
||
709 | diamond | 530 | jae fs_OnHdAndBd.nf |
585 | mario79 | 531 | cmp cl, [DRIVE_DATA+1+eax] |
709 | diamond | 532 | fs_OnHdAndBd: |
585 | mario79 | 533 | jbe @f |
75 | diamond | 534 | .nf: |
585 | mario79 | 535 | call free_hd_channel |
536 | and [hd1_status], 0 |
||
537 | mov dword [image_of_eax], 5 ; not found |
||
538 | ret |
||
71 | diamond | 539 | @@: |
1378 | turbanoff | 540 | mov [known_part], ecx ; mov [fat32part], ecx |
585 | mario79 | 541 | push ebx esi |
542 | call choice_necessity_partition_1 |
||
543 | pop esi ebx |
||
544 | mov ecx, [ebx+12] |
||
545 | mov edx, [ebx+16] |
||
465 | serge | 546 | ; add edx, std_application_base_address |
585 | mario79 | 547 | mov eax, [ebx] |
548 | cmp eax, fs_NumHdServices |
||
549 | jae .not_impl |
||
550 | add ebx, 4 |
||
551 | call dword [fs_HdServices + eax*4] |
||
552 | call free_hd_channel |
||
553 | and [hd1_status], 0 |
||
554 | mov [image_of_eax], eax |
||
555 | mov [image_of_ebx], ebx |
||
556 | ret |
||
75 | diamond | 557 | .not_impl: |
585 | mario79 | 558 | call free_hd_channel |
559 | and [hd1_status], 0 |
||
560 | mov dword [image_of_eax], 2 ; not implemented |
||
561 | ret |
||
71 | diamond | 562 | |
563 | fs_HdServices: |
||
585 | mario79 | 564 | dd fs_HdRead |
565 | dd fs_HdReadFolder |
||
566 | dd fs_HdRewrite |
||
567 | dd fs_HdWrite |
||
568 | dd fs_HdSetFileEnd |
||
569 | dd fs_HdGetFileInfo |
||
570 | dd fs_HdSetFileInfo |
||
571 | dd 0 |
||
572 | dd fs_HdDelete |
||
573 | dd fs_HdCreateFolder |
||
83 | diamond | 574 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 575 | |
87 | mario79 | 576 | ;******************************************************* |
577 | fs_OnCd0: |
||
585 | mario79 | 578 | call reserve_cd |
579 | mov [ChannelNumber],1 |
||
580 | mov [DiskNumber],0 |
||
581 | push 6 |
||
582 | push 1 |
||
583 | jmp fs_OnCd |
||
87 | mario79 | 584 | fs_OnCd1: |
585 | mario79 | 585 | call reserve_cd |
586 | mov [ChannelNumber],1 |
||
587 | mov [DiskNumber],1 |
||
588 | push 4 |
||
589 | push 2 |
||
590 | jmp fs_OnCd |
||
87 | mario79 | 591 | fs_OnCd2: |
585 | mario79 | 592 | call reserve_cd |
593 | mov [ChannelNumber],2 |
||
594 | mov [DiskNumber],0 |
||
595 | push 2 |
||
596 | push 3 |
||
597 | jmp fs_OnCd |
||
87 | mario79 | 598 | fs_OnCd3: |
585 | mario79 | 599 | call reserve_cd |
600 | mov [ChannelNumber],2 |
||
601 | mov [DiskNumber],1 |
||
602 | push 0 |
||
603 | push 4 |
||
87 | mario79 | 604 | fs_OnCd: |
585 | mario79 | 605 | call reserve_cd_channel |
606 | pop eax |
||
607 | mov [cdpos], eax |
||
608 | pop eax |
||
609 | cmp ecx, 0x100 |
||
610 | jae .nf |
||
611 | push ecx ebx |
||
612 | mov cl,al |
||
613 | mov bl,[DRIVE_DATA+1] |
||
614 | shr bl,cl |
||
615 | test bl,2 |
||
616 | pop ebx ecx |
||
87 | mario79 | 617 | |
585 | mario79 | 618 | jnz @f |
87 | mario79 | 619 | .nf: |
585 | mario79 | 620 | call free_cd_channel |
621 | and [cd_status], 0 |
||
622 | mov dword [image_of_eax], 5 ; not found |
||
623 | ret |
||
87 | mario79 | 624 | @@: |
585 | mario79 | 625 | mov ecx, [ebx+12] |
626 | mov edx, [ebx+16] |
||
465 | serge | 627 | ; add edx, std_application_base_address |
585 | mario79 | 628 | mov eax, [ebx] |
629 | cmp eax,fs_NumCdServices |
||
630 | jae .not_impl |
||
631 | add ebx, 4 |
||
632 | call dword [fs_CdServices + eax*4] |
||
633 | call free_cd_channel |
||
634 | and [cd_status], 0 |
||
635 | mov [image_of_eax], eax |
||
636 | mov [image_of_ebx], ebx |
||
637 | ret |
||
87 | mario79 | 638 | .not_impl: |
585 | mario79 | 639 | call free_cd_channel |
640 | and [cd_status], 0 |
||
641 | mov dword [image_of_eax], 2 ; not implemented |
||
642 | ret |
||
87 | mario79 | 643 | |
644 | fs_CdServices: |
||
585 | mario79 | 645 | dd fs_CdRead |
646 | dd fs_CdReadFolder |
||
647 | dd fs_NotImplemented |
||
648 | dd fs_NotImplemented |
||
649 | dd fs_NotImplemented |
||
650 | dd fs_CdGetFileInfo |
||
651 | dd fs_NotImplemented |
||
652 | dd 0 |
||
653 | dd fs_NotImplemented |
||
654 | dd fs_NotImplemented |
||
90 | mario79 | 655 | fs_NumCdServices = ($ - fs_CdServices)/4 |
656 | |||
87 | mario79 | 657 | ;******************************************************* |
658 | |||
75 | diamond | 659 | fs_HasRamdisk: |
585 | mario79 | 660 | mov al, 1 ; we always have ramdisk |
661 | ret |
||
75 | diamond | 662 | |
663 | fs_HasFloppy: |
||
585 | mario79 | 664 | cmp byte [DRIVE_DATA], 0 |
665 | setnz al |
||
666 | ret |
||
75 | diamond | 667 | |
668 | fs_HasHd0: |
||
585 | mario79 | 669 | mov al, [DRIVE_DATA+1] |
670 | and al, 11000000b |
||
671 | cmp al, 01000000b |
||
672 | setz al |
||
673 | ret |
||
75 | diamond | 674 | fs_HasHd1: |
585 | mario79 | 675 | mov al, [DRIVE_DATA+1] |
676 | and al, 00110000b |
||
677 | cmp al, 00010000b |
||
678 | setz al |
||
679 | ret |
||
75 | diamond | 680 | fs_HasHd2: |
585 | mario79 | 681 | mov al, [DRIVE_DATA+1] |
682 | and al, 00001100b |
||
683 | cmp al, 00000100b |
||
684 | setz al |
||
685 | ret |
||
75 | diamond | 686 | fs_HasHd3: |
585 | mario79 | 687 | mov al, [DRIVE_DATA+1] |
688 | and al, 00000011b |
||
689 | cmp al, 00000001b |
||
690 | setz al |
||
691 | ret |
||
75 | diamond | 692 | |
87 | mario79 | 693 | ;******************************************************* |
694 | fs_HasCd0: |
||
585 | mario79 | 695 | mov al, [DRIVE_DATA+1] |
696 | and al, 11000000b |
||
697 | cmp al, 10000000b |
||
698 | setz al |
||
699 | ret |
||
87 | mario79 | 700 | fs_HasCd1: |
585 | mario79 | 701 | mov al, [DRIVE_DATA+1] |
702 | and al, 00110000b |
||
703 | cmp al, 00100000b |
||
704 | setz al |
||
705 | ret |
||
87 | mario79 | 706 | fs_HasCd2: |
585 | mario79 | 707 | mov al, [DRIVE_DATA+1] |
708 | and al, 00001100b |
||
709 | cmp al, 00001000b |
||
710 | setz al |
||
711 | ret |
||
87 | mario79 | 712 | fs_HasCd3: |
585 | mario79 | 713 | mov al, [DRIVE_DATA+1] |
714 | and al, 00000011b |
||
715 | cmp al, 00000010b |
||
716 | setz al |
||
717 | ret |
||
237 | serge | 718 | ;******************************************************* |
87 | mario79 | 719 | |
75 | diamond | 720 | ; fs_NextXXX functions: |
721 | ; in: eax = partition number, from which start to scan |
||
722 | ; out: CF=1 => no more partitions |
||
723 | ; CF=0 => eax=next partition number |
||
724 | |||
725 | fs_NextRamdisk: |
||
726 | ; we always have /rd/1 |
||
585 | mario79 | 727 | test eax, eax |
728 | stc |
||
729 | jnz @f |
||
730 | mov al, 1 |
||
731 | clc |
||
75 | diamond | 732 | @@: |
585 | mario79 | 733 | ret |
75 | diamond | 734 | |
735 | fs_NextFloppy: |
||
381 | serge | 736 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 737 | test byte [DRIVE_DATA], 0xF0 |
738 | jz .no1 |
||
739 | test eax, eax |
||
740 | jnz .no1 |
||
741 | inc eax |
||
742 | ret ; CF cleared |
||
75 | diamond | 743 | .no1: |
585 | mario79 | 744 | test byte [DRIVE_DATA], 0x0F |
745 | jz .no2 |
||
746 | cmp al, 2 |
||
747 | jae .no2 |
||
748 | mov al, 2 |
||
749 | clc |
||
750 | ret |
||
75 | diamond | 751 | .no2: |
585 | mario79 | 752 | stc |
753 | ret |
||
75 | diamond | 754 | |
755 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
756 | fs_NextHd0: |
||
585 | mario79 | 757 | push 0 |
758 | jmp fs_NextHd |
||
75 | diamond | 759 | fs_NextHd1: |
585 | mario79 | 760 | push 1 |
761 | jmp fs_NextHd |
||
75 | diamond | 762 | fs_NextHd2: |
585 | mario79 | 763 | push 2 |
764 | jmp fs_NextHd |
||
75 | diamond | 765 | fs_NextHd3: |
585 | mario79 | 766 | push 3 |
75 | diamond | 767 | fs_NextHd: |
585 | mario79 | 768 | pop ecx |
769 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
770 | cmp eax, ecx |
||
771 | jae fs_NextFloppy.no2 |
||
772 | inc eax |
||
773 | clc |
||
774 | ret |
||
237 | serge | 775 | |
87 | mario79 | 776 | ;******************************************************* |
777 | fs_NextCd: |
||
778 | ; we always have /cdX/1 |
||
585 | mario79 | 779 | test eax, eax |
780 | stc |
||
781 | jnz @f |
||
782 | mov al, 1 |
||
783 | clc |
||
87 | mario79 | 784 | @@: |
585 | mario79 | 785 | ret |
87 | mario79 | 786 | ;******************************************************* |
787 | |||
709 | diamond | 788 | ; Additional FS handlers. |
789 | ; This handler gets the control each time when fn 70 is called |
||
790 | ; with unknown item of root subdirectory. |
||
791 | ; in: esi -> name |
||
792 | ; ebp = 0 or rest of name relative to esi |
||
793 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
794 | ; but instead pop return address and return directly to the caller |
||
795 | ; otherwise simply return |
||
796 | |||
797 | ; here we test for /bd |
||
798 | biosdisk_handler: |
||
799 | cmp [NumBiosDisks], 0 |
||
800 | jz .ret |
||
801 | mov al, [esi] |
||
802 | or al, 20h |
||
803 | cmp al, 'b' |
||
804 | jnz .ret |
||
805 | mov al, [esi+1] |
||
806 | or al, 20h |
||
807 | cmp al, 'd' |
||
808 | jnz .ret |
||
809 | push esi |
||
810 | inc esi |
||
811 | inc esi |
||
812 | cmp byte [esi], '0' |
||
813 | jb .ret2 |
||
814 | cmp byte [esi], '9' |
||
815 | ja .ret2 |
||
816 | xor edx, edx |
||
817 | @@: |
||
818 | lodsb |
||
819 | test al, al |
||
820 | jz .ok |
||
821 | cmp al, '/' |
||
822 | jz .ok |
||
823 | sub al, '0' |
||
824 | cmp al, 9 |
||
825 | ja .ret2 |
||
826 | lea edx, [edx*5] |
||
827 | lea edx, [edx*2+eax] |
||
828 | jmp @b |
||
829 | .ret2: |
||
830 | pop esi |
||
831 | .ret: |
||
832 | ret |
||
833 | .ok: |
||
834 | cmp al, '/' |
||
835 | jz @f |
||
836 | dec esi |
||
837 | @@: |
||
838 | add dl, 80h |
||
839 | xor ecx, ecx |
||
840 | @@: |
||
841 | cmp dl, [BiosDisksData+ecx*4] |
||
842 | jz .ok2 |
||
843 | inc ecx |
||
844 | cmp ecx, [NumBiosDisks] |
||
845 | jb @b |
||
846 | jmp .ret2 |
||
847 | .ok2: |
||
848 | add esp, 8 |
||
849 | test al, al |
||
850 | jnz @f |
||
851 | mov esi, fs_BdNext |
||
852 | jmp file_system_lfn.maindir_noesi |
||
853 | @@: |
||
854 | push ecx |
||
855 | push fs_OnBd |
||
856 | mov edi, esp |
||
857 | jmp file_system_lfn.found2 |
||
858 | |||
859 | fs_BdNext: |
||
860 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
861 | inc eax |
||
862 | cmc |
||
863 | ret |
||
864 | |||
865 | fs_OnBd: |
||
866 | pop edx edx |
||
867 | ; edx = disk number, ecx = partition number |
||
868 | ; esi+ebp = name |
||
869 | call reserve_hd1 |
||
870 | add edx, 0x80 |
||
871 | mov [hdpos], edx |
||
872 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
873 | jmp fs_OnHdAndBd |
||
874 | |||
875 | ; This handler is called when virtual root is enumerated |
||
876 | ; and must return all items which can be handled by this. |
||
877 | ; It is called several times, first time with eax=0 |
||
878 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
879 | ; out: eax = 0 => no more items |
||
880 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
881 | |||
882 | ; here we enumerate existing BIOS disks /bd |
||
883 | biosdisk_enum_root: |
||
884 | cmp eax, [NumBiosDisks] |
||
885 | jae .end |
||
886 | push eax |
||
887 | movzx eax, byte [BiosDisksData+eax*4] |
||
888 | sub al, 80h |
||
889 | push eax |
||
890 | mov al, 'b' |
||
891 | stosb |
||
892 | mov al, 'd' |
||
893 | stosb |
||
894 | pop eax |
||
895 | cmp al, 10 |
||
896 | jae .big |
||
897 | add al, '0' |
||
898 | stosb |
||
899 | mov byte [edi], 0 |
||
900 | pop eax |
||
901 | inc eax |
||
902 | ret |
||
903 | .end: |
||
904 | xor eax, eax |
||
905 | ret |
||
906 | .big: |
||
907 | push ecx |
||
908 | push -'0' |
||
909 | mov ecx, 10 |
||
910 | @@: |
||
911 | xor edx, edx |
||
912 | div ecx |
||
913 | push edx |
||
914 | test eax, eax |
||
915 | jnz @b |
||
916 | xchg eax, edx |
||
917 | @@: |
||
918 | pop eax |
||
919 | add al, '0' |
||
920 | stosb |
||
921 | jnz @b |
||
922 | pop ecx |
||
923 | pop eax |
||
924 | inc eax |
||
925 | ret |
||
926 | |||
521 | diamond | 927 | process_replace_file_name: |
585 | mario79 | 928 | mov ebp, [full_file_name_table] |
929 | mov edi, [full_file_name_table.size] |
||
930 | dec edi |
||
931 | shl edi, 7 |
||
932 | add edi, ebp |
||
521 | diamond | 933 | .loop: |
585 | mario79 | 934 | cmp edi, ebp |
935 | jb .notfound |
||
936 | push esi edi |
||
521 | diamond | 937 | @@: |
585 | mario79 | 938 | cmp byte [edi], 0 |
939 | jz .dest_done |
||
940 | lodsb |
||
941 | test al, al |
||
942 | jz .cont |
||
943 | or al, 20h |
||
944 | scasb |
||
945 | jz @b |
||
946 | jmp .cont |
||
521 | diamond | 947 | .dest_done: |
585 | mario79 | 948 | cmp byte [esi], 0 |
949 | jz .found |
||
950 | cmp byte [esi], '/' |
||
951 | jnz .cont |
||
952 | inc esi |
||
953 | jmp .found |
||
521 | diamond | 954 | .cont: |
585 | mario79 | 955 | pop edi esi |
956 | sub edi, 128 |
||
957 | jmp .loop |
||
521 | diamond | 958 | .found: |
585 | mario79 | 959 | pop edi eax |
960 | mov ebp, esi |
||
961 | cmp byte [esi], 0 |
||
962 | lea esi, [edi+64] |
||
963 | jnz .ret |
||
521 | diamond | 964 | .notfound: |
585 | mario79 | 965 | xor ebp, ebp |
521 | diamond | 966 | .ret: |
585 | mario79 | 967 | ret |
521 | diamond | 968 | |
969 | sys_current_directory: |
||
1304 | Lrz | 970 | ; mov esi, [current_slot] |
971 | ; mov esi, [esi+APPDATA.cur_dir] |
||
972 | ; mov edx, esi |
||
973 | |||
1305 | diamond | 974 | ;get length string of appdata.cur_dir |
975 | mov eax, [current_slot] |
||
976 | mov edi, [eax+APPDATA.cur_dir] |
||
1304 | Lrz | 977 | |
978 | dec ebx |
||
585 | mario79 | 979 | jz .set |
1304 | Lrz | 980 | dec ebx |
585 | mario79 | 981 | jz .get |
982 | ret |
||
521 | diamond | 983 | .get: |
984 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
985 | ; for our code: ebx->buffer,ecx=len |
||
1304 | Lrz | 986 | max_cur_dir equ 0x1000 |
987 | |||
988 | mov ebx,edi |
||
989 | |||
990 | push ecx |
||
991 | push edi |
||
992 | |||
993 | xor eax,eax |
||
994 | mov ecx,max_cur_dir |
||
995 | |||
996 | repne scasb ;find zerro at and string |
||
1305 | diamond | 997 | jnz .error ; no zero in cur_dir: internal error, should not happen |
1304 | Lrz | 998 | |
999 | sub edi,ebx ;lenght for copy |
||
1000 | inc edi |
||
1001 | mov [esp+32+8],edi ;return in eax |
||
1002 | |||
1305 | diamond | 1003 | cmp edx, edi |
1004 | jbe @f |
||
1005 | mov edx, edi |
||
1006 | @@: |
||
1007 | ;source string |
||
1304 | Lrz | 1008 | pop esi |
1009 | ;destination string |
||
1010 | pop edi |
||
1305 | diamond | 1011 | cmp edx, 1 |
1012 | jbe .ret |
||
1304 | Lrz | 1013 | |
1014 | mov al,'/' ;start string with '/' |
||
585 | mario79 | 1015 | stosb |
1304 | Lrz | 1016 | mov ecx,edx |
1017 | rep movsb ;copy string |
||
1018 | .ret: ret |
||
1019 | |||
1020 | .error: add esp,8 |
||
1021 | or dword [esp+32],-1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
585 | mario79 | 1022 | ret |
521 | diamond | 1023 | .set: |
1024 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1025 | ; for our code: ebx->string to set |
||
1289 | diamond | 1026 | ; use generic resolver with APPDATA.cur_dir as destination |
1304 | Lrz | 1027 | push max_cur_dir ;0x1000 |
1028 | push edi ;destination |
||
1029 | mov ebx,ecx |
||
1289 | diamond | 1030 | call get_full_file_name |
1031 | ret |
||
1032 | |||
1033 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
1034 | ; destroys all registers except ebp,esp |
||
1035 | get_full_file_name: |
||
1036 | push ebp |
||
1037 | mov esi, [current_slot] |
||
1038 | mov esi, [esi+APPDATA.cur_dir] |
||
1039 | mov edx, esi |
||
521 | diamond | 1040 | @@: |
585 | mario79 | 1041 | inc esi |
1042 | cmp byte [esi-1], 0 |
||
1043 | jnz @b |
||
1044 | dec esi |
||
1045 | cmp byte [ebx], '/' |
||
1046 | jz .set_absolute |
||
521 | diamond | 1047 | ; string gives relative path |
1289 | diamond | 1048 | mov edi, [esp+8] ; destination |
521 | diamond | 1049 | .relative: |
585 | mario79 | 1050 | cmp byte [ebx], 0 |
1051 | jz .set_ok |
||
1052 | cmp word [ebx], '.' |
||
1053 | jz .set_ok |
||
1054 | cmp word [ebx], './' |
||
1055 | jnz @f |
||
1056 | add ebx, 2 |
||
1057 | jmp .relative |
||
521 | diamond | 1058 | @@: |
585 | mario79 | 1059 | cmp word [ebx], '..' |
1060 | jnz .doset_relative |
||
1061 | cmp byte [ebx+2], 0 |
||
1062 | jz @f |
||
1063 | cmp byte [ebx+2], '/' |
||
1064 | jnz .doset_relative |
||
521 | diamond | 1065 | @@: |
585 | mario79 | 1066 | dec esi |
1067 | cmp byte [esi], '/' |
||
1068 | jnz @b |
||
1069 | add ebx, 3 |
||
1070 | jmp .relative |
||
1289 | diamond | 1071 | .set_ok: |
1072 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
1073 | jz .set_ok.cur_dir |
||
1074 | sub esi, edx |
||
1075 | cmp esi, [esp+12] |
||
1076 | jb .set_ok.copy |
||
1077 | .fail: |
||
1078 | mov byte [edi], 0 |
||
1079 | xor eax, eax ; fail |
||
1080 | pop ebp |
||
1081 | ret 8 |
||
1082 | .set_ok.copy: |
||
1083 | mov ecx, esi |
||
1084 | mov esi, edx |
||
1085 | rep movsb |
||
1086 | mov byte [edi], 0 |
||
1087 | .ret.ok: |
||
1088 | mov al, 1 ; ok |
||
1089 | pop ebp |
||
1090 | ret 8 |
||
1091 | .set_ok.cur_dir: |
||
1092 | mov byte [esi], 0 |
||
1093 | jmp .ret.ok |
||
521 | diamond | 1094 | .doset_relative: |
1289 | diamond | 1095 | cmp edx, edi |
1096 | jz .doset_relative.cur_dir |
||
1097 | sub esi, edx |
||
1098 | cmp esi, [esp+12] |
||
1099 | jae .fail |
||
1100 | mov ecx, esi |
||
1101 | mov esi, edx |
||
1102 | mov edx, edi |
||
1103 | rep movsb |
||
1104 | jmp .doset_relative.copy |
||
1105 | .doset_relative.cur_dir: |
||
1106 | mov edi, esi |
||
1107 | .doset_relative.copy: |
||
1108 | add edx, [esp+12] |
||
1109 | mov byte [edi], '/' |
||
1110 | inc edi |
||
1111 | cmp edi, edx |
||
1112 | jae .overflow |
||
521 | diamond | 1113 | @@: |
585 | mario79 | 1114 | mov al, [ebx] |
1115 | inc ebx |
||
1289 | diamond | 1116 | stosb |
585 | mario79 | 1117 | test al, al |
1289 | diamond | 1118 | jz .ret.ok |
1119 | cmp edi, edx |
||
585 | mario79 | 1120 | jb @b |
1289 | diamond | 1121 | .overflow: |
1122 | dec edi |
||
1123 | jmp .fail |
||
521 | diamond | 1124 | .set_absolute: |
585 | mario79 | 1125 | lea esi, [ebx+1] |
1126 | call process_replace_file_name |
||
1289 | diamond | 1127 | mov edi, [esp+8] |
1128 | mov edx, [esp+12] |
||
1129 | add edx, edi |
||
521 | diamond | 1130 | .set_copy: |
585 | mario79 | 1131 | lodsb |
1132 | stosb |
||
1133 | test al, al |
||
1134 | jz .set_part2 |
||
521 | diamond | 1135 | .set_copy_cont: |
585 | mario79 | 1136 | cmp edi, edx |
1137 | jb .set_copy |
||
1289 | diamond | 1138 | jmp .overflow |
521 | diamond | 1139 | .set_part2: |
585 | mario79 | 1140 | mov esi, ebp |
1141 | xor ebp, ebp |
||
1142 | test esi, esi |
||
1289 | diamond | 1143 | jz .ret.ok |
585 | mario79 | 1144 | mov byte [edi-1], '/' |
1379 | turbanoff | 1145 | jmp .set_copy_cont |