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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: 1378 $ |
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 |
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91 | diamond | 103 | ; 7 : start application |
171 | diamond | 104 | ; 8 : delete file |
321 | diamond | 105 | ; 9 : create directory |
71 | diamond | 106 | |
1378 | turbanoff | 107 | ; parse file name |
108 | cmp dword [eax], 1 |
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109 | jne @F |
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110 | ;xchg bx,bx |
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111 | @@: |
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112 | ;up to file_system_lfn - TEMP!!! |
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585 | mario79 | 113 | xchg ebx, eax |
114 | lea esi, [ebx+20] |
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115 | lodsb |
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116 | test al, al |
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117 | jnz @f |
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118 | mov esi, [esi] |
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119 | lodsb |
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84 | diamond | 120 | @@: |
585 | mario79 | 121 | cmp al, '/' |
122 | jz .notcurdir |
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123 | dec esi |
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124 | mov ebp, esi |
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125 | test al, al |
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126 | jnz @f |
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127 | xor ebp, ebp |
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521 | diamond | 128 | @@: |
585 | mario79 | 129 | mov esi, [current_slot] |
130 | mov esi, [esi+APPDATA.cur_dir] |
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131 | jmp .parse_normal |
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521 | diamond | 132 | .notcurdir: |
585 | mario79 | 133 | cmp byte [esi], 0 |
134 | jz .rootdir |
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135 | call process_replace_file_name |
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521 | diamond | 136 | .parse_normal: |
585 | mario79 | 137 | cmp dword [ebx], 7 |
138 | jne @F |
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139 | mov edx, [ebx+4] |
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140 | mov ebx, [ebx+8] |
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141 | call fs_execute ; esi+ebp, ebx, edx |
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142 | mov [image_of_eax], eax |
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143 | ret |
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237 | serge | 144 | @@: |
585 | mario79 | 145 | mov edi, rootdirs-8 |
146 | xor ecx, ecx |
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147 | push esi |
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71 | diamond | 148 | .scan1: |
585 | mario79 | 149 | pop esi |
150 | add edi, ecx |
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151 | scasd |
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152 | scasd |
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153 | mov cl, byte [edi] |
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154 | test cl, cl |
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709 | diamond | 155 | jz .notfound_try |
585 | mario79 | 156 | inc edi |
157 | push esi |
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71 | diamond | 158 | @@: |
585 | mario79 | 159 | lodsb |
160 | or al, 20h |
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161 | scasb |
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162 | loopz @b |
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163 | jnz .scan1 |
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164 | lodsb |
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165 | cmp al, '/' |
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166 | jz .found1 |
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167 | test al, al |
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168 | jnz .scan1 |
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169 | pop eax |
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71 | diamond | 170 | ; directory /xxx |
171 | .maindir: |
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709 | diamond | 172 | mov esi, [edi+4] |
173 | .maindir_noesi: |
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585 | mario79 | 174 | cmp dword [ebx], 1 |
175 | jnz .access_denied |
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176 | xor eax, eax |
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1378 | turbanoff | 177 | mov ebp, [ebx+12] ;количество блоков для считывания |
178 | mov edx, [ebx+16] ;куда записывать рузельтат |
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465 | serge | 179 | ; add edx, std_application_base_address |
585 | mario79 | 180 | push dword [ebx+4] ; first block |
181 | mov ebx, [ebx+8] ; flags |
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78 | diamond | 182 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 183 | mov edi, edx |
709 | diamond | 184 | push ecx |
585 | mario79 | 185 | mov ecx, 32/4 |
186 | rep stosd |
||
709 | diamond | 187 | pop ecx |
585 | mario79 | 188 | mov byte [edx], 1 ; version |
75 | diamond | 189 | .maindir_loop: |
1378 | turbanoff | 190 | call esi ;!!!!!!!!!!!!!!!!!! |
585 | mario79 | 191 | jc .maindir_done |
192 | inc dword [edx+8] |
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193 | dec dword [esp] |
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194 | jns .maindir_loop |
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195 | dec ebp |
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196 | js .maindir_loop |
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197 | inc dword [edx+4] |
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198 | mov dword [edi], 0x10 ; attributes: folder |
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199 | mov dword [edi+4], 1 ; name type: UNICODE |
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200 | push eax |
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201 | xor eax, eax |
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202 | add edi, 8 |
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709 | diamond | 203 | push ecx |
585 | mario79 | 204 | mov ecx, 40/4-2 |
205 | rep stosd |
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709 | diamond | 206 | pop ecx |
585 | mario79 | 207 | pop eax |
208 | push eax edx |
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75 | diamond | 209 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 210 | push edi |
709 | diamond | 211 | push ecx |
585 | mario79 | 212 | push -'0' |
709 | diamond | 213 | mov ecx, 10 |
75 | diamond | 214 | @@: |
585 | mario79 | 215 | xor edx, edx |
216 | div ecx |
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217 | push edx |
||
218 | test eax, eax |
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219 | jnz @b |
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75 | diamond | 220 | @@: |
585 | mario79 | 221 | pop eax |
222 | add al, '0' |
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223 | stosb |
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224 | test bl, 1 ; UNICODE name? |
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225 | jz .ansi2 |
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226 | mov byte [edi], 0 |
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227 | inc edi |
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78 | diamond | 228 | .ansi2: |
585 | mario79 | 229 | test al, al |
230 | jnz @b |
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231 | mov byte [edi-1], 0 |
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709 | diamond | 232 | pop ecx |
585 | mario79 | 233 | pop edi |
78 | diamond | 234 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 235 | add edi, 520 |
236 | test bl, 1 |
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237 | jnz @f |
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238 | sub edi, 520-264 |
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78 | diamond | 239 | @@: |
585 | mario79 | 240 | pop edx eax |
241 | jmp .maindir_loop |
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75 | diamond | 242 | .maindir_done: |
585 | mario79 | 243 | pop eax |
244 | mov ebx, [edx+4] |
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245 | xor eax, eax |
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246 | dec ebp |
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247 | js @f |
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248 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 249 | @@: |
585 | mario79 | 250 | mov [image_of_eax], eax |
251 | mov [image_of_ebx], ebx |
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252 | ret |
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71 | diamond | 253 | ; directory / |
254 | .rootdir: |
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585 | mario79 | 255 | cmp dword [ebx], 1 ; read folder? |
256 | jz .readroot |
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75 | diamond | 257 | .access_denied: |
585 | mario79 | 258 | mov dword [image_of_eax], 10 ; access denied |
259 | ret |
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71 | diamond | 260 | |
75 | diamond | 261 | .readroot: |
262 | ; virtual root folder - special handler |
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585 | mario79 | 263 | mov esi, virtual_root_query |
264 | mov ebp, [ebx+12] |
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265 | mov edx, [ebx+16] |
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465 | serge | 266 | ; add edx, std_application_base_address |
585 | mario79 | 267 | push dword [ebx+4] ; first block |
268 | mov ebx, [ebx+8] ; flags |
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269 | xor eax, eax |
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78 | diamond | 270 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 271 | mov edi, edx |
272 | mov ecx, 32/4 |
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273 | rep stosd |
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274 | mov byte [edx], 1 ; version |
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75 | diamond | 275 | .readroot_loop: |
585 | mario79 | 276 | cmp dword [esi], eax |
709 | diamond | 277 | jz .readroot_done_static |
585 | mario79 | 278 | call dword [esi] |
279 | add esi, 4 |
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280 | test eax, eax |
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281 | jnz @f |
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75 | diamond | 282 | .readroot_next: |
585 | mario79 | 283 | or ecx, -1 |
284 | xchg esi, edi |
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285 | repnz scasb |
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286 | xchg esi, edi |
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287 | jmp .readroot_loop |
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75 | diamond | 288 | @@: |
585 | mario79 | 289 | xor eax, eax |
290 | inc dword [edx+8] |
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291 | dec dword [esp] |
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292 | jns .readroot_next |
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293 | dec ebp |
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294 | js .readroot_next |
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295 | inc dword [edx+4] |
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296 | mov dword [edi], 0x10 ; attributes: folder |
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709 | diamond | 297 | mov dword [edi+4], ebx ; name type: UNICODE |
585 | mario79 | 298 | add edi, 8 |
299 | mov ecx, 40/4-2 |
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300 | rep stosd |
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301 | push edi |
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75 | diamond | 302 | @@: |
585 | mario79 | 303 | lodsb |
304 | stosb |
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305 | test bl, 1 |
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306 | jz .ansi |
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307 | mov byte [edi], 0 |
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308 | inc edi |
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78 | diamond | 309 | .ansi: |
585 | mario79 | 310 | test eax, eax |
311 | jnz @b |
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312 | pop edi |
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313 | add edi, 520 |
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314 | test bl, 1 |
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315 | jnz .readroot_loop |
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316 | sub edi, 520-264 |
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317 | jmp .readroot_loop |
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709 | diamond | 318 | .readroot_done_static: |
319 | mov esi, fs_additional_handlers-8 |
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320 | sub esp, 16 |
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321 | .readroot_ah_loop: |
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322 | add esi, 8 |
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323 | cmp dword [esi], 0 |
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324 | jz .readroot_done |
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325 | xor eax, eax |
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326 | .readroot_ah_loop2: |
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327 | push edi |
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328 | lea edi, [esp+4] |
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329 | call dword [esi+4] |
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330 | pop edi |
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331 | test eax, eax |
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332 | jz .readroot_ah_loop |
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333 | inc dword [edx+8] |
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334 | dec dword [esp+16] |
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335 | jns .readroot_ah_loop2 |
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336 | dec ebp |
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337 | js .readroot_ah_loop2 |
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338 | push eax |
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339 | xor eax, eax |
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340 | inc dword [edx+4] |
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341 | mov dword [edi], 0x10 ; attributes: folder |
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342 | mov dword [edi+4], ebx |
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343 | add edi, 8 |
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344 | mov ecx, 40/4-2 |
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345 | rep stosd |
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346 | push esi edi |
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347 | lea esi, [esp+12] |
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348 | @@: |
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349 | lodsb |
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350 | stosb |
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351 | test bl, 1 |
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352 | jz .ansi3 |
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353 | mov byte [edi], 0 |
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354 | inc edi |
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355 | .ansi3: |
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356 | test al, al |
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357 | jnz @b |
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358 | pop edi esi eax |
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359 | add edi, 520 |
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360 | test bl, 1 |
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361 | jnz .readroot_ah_loop2 |
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362 | sub edi, 520-264 |
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363 | jmp .readroot_ah_loop2 |
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75 | diamond | 364 | .readroot_done: |
709 | diamond | 365 | add esp, 16 |
585 | mario79 | 366 | pop eax |
367 | mov ebx, [edx+4] |
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368 | xor eax, eax |
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369 | dec ebp |
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370 | js @f |
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371 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 372 | @@: |
585 | mario79 | 373 | mov [image_of_eax], eax |
374 | mov [image_of_ebx], ebx |
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375 | ret |
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709 | diamond | 376 | .notfound_try: |
377 | mov edi, fs_additional_handlers |
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378 | @@: |
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379 | cmp dword [edi], 0 |
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1270 | diamond | 380 | jz .notfound |
709 | diamond | 381 | call dword [edi] |
382 | scasd |
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383 | scasd |
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384 | jmp @b |
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521 | diamond | 385 | .notfound: |
585 | mario79 | 386 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
387 | and dword [image_of_ebx], 0 |
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388 | ret |
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75 | diamond | 389 | |
709 | diamond | 390 | .notfounda: |
391 | cmp edi, esp |
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392 | jnz .notfound |
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393 | add esp, 8 |
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394 | jmp .notfound |
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395 | |||
71 | diamond | 396 | .found1: |
585 | mario79 | 397 | pop eax |
398 | cmp byte [esi], 0 |
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399 | jz .maindir |
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709 | diamond | 400 | .found2: |
71 | diamond | 401 | ; read partition number |
585 | mario79 | 402 | xor ecx, ecx |
403 | xor eax, eax |
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71 | diamond | 404 | @@: |
585 | mario79 | 405 | lodsb |
406 | cmp al, '/' |
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407 | jz .done1 |
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408 | test al, al |
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409 | jz .done1 |
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410 | sub al, '0' |
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411 | cmp al, 9 |
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709 | diamond | 412 | ja .notfounda |
585 | mario79 | 413 | lea ecx, [ecx*5] |
414 | lea ecx, [ecx*2+eax] |
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415 | jmp @b |
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71 | diamond | 416 | .done1: |
709 | diamond | 417 | jecxz .notfounda |
585 | mario79 | 418 | test al, al |
419 | jnz @f |
||
420 | dec esi |
||
71 | diamond | 421 | @@: |
585 | mario79 | 422 | cmp byte [esi], 0 |
423 | jnz @f |
||
424 | test ebp, ebp |
||
425 | jz @f |
||
426 | mov esi, ebp |
||
427 | xor ebp, ebp |
||
521 | diamond | 428 | @@: |
75 | diamond | 429 | ; now [edi] contains handler address, ecx - partition number, |
430 | ; esi points to ASCIIZ string - rest of name |
||
585 | mario79 | 431 | jmp dword [edi] |
71 | diamond | 432 | |
433 | ; handlers for devices |
||
75 | diamond | 434 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 435 | ; in: ecx = partition number |
436 | ; esi -> relative (for device) name |
||
437 | ; ebx -> fileinfo |
||
521 | diamond | 438 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 439 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 440 | |
441 | fs_OnRamdisk: |
||
585 | mario79 | 442 | cmp ecx, 1 |
443 | jnz file_system_lfn.notfound |
||
444 | mov eax, [ebx] |
||
445 | cmp eax, fs_NumRamdiskServices |
||
446 | jae .not_impl |
||
447 | mov ecx, [ebx+12] |
||
448 | mov edx, [ebx+16] |
||
465 | serge | 449 | ; add edx, std_application_base_address |
585 | mario79 | 450 | add ebx, 4 |
451 | call dword [fs_RamdiskServices + eax*4] |
||
452 | mov [image_of_eax], eax |
||
453 | mov [image_of_ebx], ebx |
||
454 | ret |
||
71 | diamond | 455 | .not_impl: |
585 | mario79 | 456 | mov dword [image_of_eax], 2 ; not implemented |
457 | ret |
||
71 | diamond | 458 | |
86 | diamond | 459 | fs_NotImplemented: |
585 | mario79 | 460 | mov eax, 2 |
461 | ret |
||
86 | diamond | 462 | |
71 | diamond | 463 | fs_RamdiskServices: |
585 | mario79 | 464 | dd fs_RamdiskRead |
465 | dd fs_RamdiskReadFolder |
||
466 | dd fs_RamdiskRewrite |
||
467 | dd fs_RamdiskWrite |
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468 | dd fs_RamdiskSetFileEnd |
||
469 | dd fs_RamdiskGetFileInfo |
||
470 | dd fs_RamdiskSetFileInfo |
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471 | dd 0 |
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472 | dd fs_RamdiskDelete |
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473 | dd fs_RamdiskCreateFolder |
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83 | diamond | 474 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 475 | |
476 | fs_OnFloppy: |
||
585 | mario79 | 477 | cmp ecx, 2 |
478 | ja file_system_lfn.notfound |
||
479 | mov eax, [ebx] |
||
480 | cmp eax, fs_NumFloppyServices |
||
481 | jae fs_OnRamdisk.not_impl |
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482 | call reserve_flp |
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483 | mov [flp_number], cl |
||
484 | mov ecx, [ebx+12] |
||
485 | mov edx, [ebx+16] |
||
465 | serge | 486 | ; add edx, std_application_base_address |
585 | mario79 | 487 | add ebx, 4 |
488 | call dword [fs_FloppyServices + eax*4] |
||
489 | and [flp_status], 0 |
||
490 | mov [image_of_eax], eax |
||
491 | mov [image_of_ebx], ebx |
||
492 | ret |
||
71 | diamond | 493 | |
494 | fs_FloppyServices: |
||
585 | mario79 | 495 | dd fs_FloppyRead |
496 | dd fs_FloppyReadFolder |
||
497 | dd fs_FloppyRewrite |
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498 | dd fs_FloppyWrite |
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499 | dd fs_FloppySetFileEnd |
||
500 | dd fs_FloppyGetFileInfo |
||
501 | dd fs_FloppySetFileInfo |
||
502 | dd 0 |
||
503 | dd fs_FloppyDelete |
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504 | dd fs_FloppyCreateFolder |
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83 | diamond | 505 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 506 | |
507 | fs_OnHd0: |
||
585 | mario79 | 508 | call reserve_hd1 |
509 | mov [hdbase], 0x1F0 |
||
510 | mov [hdid], 0 |
||
511 | push 1 |
||
512 | jmp fs_OnHd |
||
71 | diamond | 513 | fs_OnHd1: |
585 | mario79 | 514 | call reserve_hd1 |
515 | mov [hdbase], 0x1F0 |
||
516 | mov [hdid], 0x10 |
||
517 | push 2 |
||
518 | jmp fs_OnHd |
||
71 | diamond | 519 | fs_OnHd2: |
585 | mario79 | 520 | call reserve_hd1 |
521 | mov [hdbase], 0x170 |
||
522 | mov [hdid], 0 |
||
523 | push 3 |
||
524 | jmp fs_OnHd |
||
71 | diamond | 525 | fs_OnHd3: |
585 | mario79 | 526 | call reserve_hd1 |
527 | mov [hdbase], 0x170 |
||
528 | mov [hdid], 0x10 |
||
529 | push 4 |
||
71 | diamond | 530 | fs_OnHd: |
585 | mario79 | 531 | call reserve_hd_channel |
532 | pop eax |
||
533 | mov [hdpos], eax |
||
534 | cmp ecx, 0x100 |
||
709 | diamond | 535 | jae fs_OnHdAndBd.nf |
585 | mario79 | 536 | cmp cl, [DRIVE_DATA+1+eax] |
709 | diamond | 537 | fs_OnHdAndBd: |
585 | mario79 | 538 | jbe @f |
75 | diamond | 539 | .nf: |
585 | mario79 | 540 | call free_hd_channel |
541 | and [hd1_status], 0 |
||
542 | mov dword [image_of_eax], 5 ; not found |
||
543 | ret |
||
71 | diamond | 544 | @@: |
1378 | turbanoff | 545 | mov [known_part], ecx ; mov [fat32part], ecx |
585 | mario79 | 546 | push ebx esi |
547 | call choice_necessity_partition_1 |
||
548 | pop esi ebx |
||
549 | mov ecx, [ebx+12] |
||
550 | mov edx, [ebx+16] |
||
465 | serge | 551 | ; add edx, std_application_base_address |
585 | mario79 | 552 | mov eax, [ebx] |
553 | cmp eax, fs_NumHdServices |
||
554 | jae .not_impl |
||
555 | add ebx, 4 |
||
556 | call dword [fs_HdServices + eax*4] |
||
557 | call free_hd_channel |
||
558 | and [hd1_status], 0 |
||
559 | mov [image_of_eax], eax |
||
560 | mov [image_of_ebx], ebx |
||
561 | ret |
||
75 | diamond | 562 | .not_impl: |
585 | mario79 | 563 | call free_hd_channel |
564 | and [hd1_status], 0 |
||
565 | mov dword [image_of_eax], 2 ; not implemented |
||
566 | ret |
||
71 | diamond | 567 | |
568 | fs_HdServices: |
||
585 | mario79 | 569 | dd fs_HdRead |
570 | dd fs_HdReadFolder |
||
571 | dd fs_HdRewrite |
||
572 | dd fs_HdWrite |
||
573 | dd fs_HdSetFileEnd |
||
574 | dd fs_HdGetFileInfo |
||
575 | dd fs_HdSetFileInfo |
||
576 | dd 0 |
||
577 | dd fs_HdDelete |
||
578 | dd fs_HdCreateFolder |
||
83 | diamond | 579 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 580 | |
87 | mario79 | 581 | ;******************************************************* |
582 | fs_OnCd0: |
||
585 | mario79 | 583 | call reserve_cd |
584 | mov [ChannelNumber],1 |
||
585 | mov [DiskNumber],0 |
||
586 | push 6 |
||
587 | push 1 |
||
588 | jmp fs_OnCd |
||
87 | mario79 | 589 | fs_OnCd1: |
585 | mario79 | 590 | call reserve_cd |
591 | mov [ChannelNumber],1 |
||
592 | mov [DiskNumber],1 |
||
593 | push 4 |
||
594 | push 2 |
||
595 | jmp fs_OnCd |
||
87 | mario79 | 596 | fs_OnCd2: |
585 | mario79 | 597 | call reserve_cd |
598 | mov [ChannelNumber],2 |
||
599 | mov [DiskNumber],0 |
||
600 | push 2 |
||
601 | push 3 |
||
602 | jmp fs_OnCd |
||
87 | mario79 | 603 | fs_OnCd3: |
585 | mario79 | 604 | call reserve_cd |
605 | mov [ChannelNumber],2 |
||
606 | mov [DiskNumber],1 |
||
607 | push 0 |
||
608 | push 4 |
||
87 | mario79 | 609 | fs_OnCd: |
585 | mario79 | 610 | call reserve_cd_channel |
611 | pop eax |
||
612 | mov [cdpos], eax |
||
613 | pop eax |
||
614 | cmp ecx, 0x100 |
||
615 | jae .nf |
||
616 | push ecx ebx |
||
617 | mov cl,al |
||
618 | mov bl,[DRIVE_DATA+1] |
||
619 | shr bl,cl |
||
620 | test bl,2 |
||
621 | pop ebx ecx |
||
87 | mario79 | 622 | |
585 | mario79 | 623 | jnz @f |
87 | mario79 | 624 | .nf: |
585 | mario79 | 625 | call free_cd_channel |
626 | and [cd_status], 0 |
||
627 | mov dword [image_of_eax], 5 ; not found |
||
628 | ret |
||
87 | mario79 | 629 | @@: |
585 | mario79 | 630 | mov ecx, [ebx+12] |
631 | mov edx, [ebx+16] |
||
465 | serge | 632 | ; add edx, std_application_base_address |
585 | mario79 | 633 | mov eax, [ebx] |
634 | cmp eax,fs_NumCdServices |
||
635 | jae .not_impl |
||
636 | add ebx, 4 |
||
637 | call dword [fs_CdServices + eax*4] |
||
638 | call free_cd_channel |
||
639 | and [cd_status], 0 |
||
640 | mov [image_of_eax], eax |
||
641 | mov [image_of_ebx], ebx |
||
642 | ret |
||
87 | mario79 | 643 | .not_impl: |
585 | mario79 | 644 | call free_cd_channel |
645 | and [cd_status], 0 |
||
646 | mov dword [image_of_eax], 2 ; not implemented |
||
647 | ret |
||
87 | mario79 | 648 | |
649 | fs_CdServices: |
||
585 | mario79 | 650 | dd fs_CdRead |
651 | dd fs_CdReadFolder |
||
652 | dd fs_NotImplemented |
||
653 | dd fs_NotImplemented |
||
654 | dd fs_NotImplemented |
||
655 | dd fs_CdGetFileInfo |
||
656 | dd fs_NotImplemented |
||
657 | dd 0 |
||
658 | dd fs_NotImplemented |
||
659 | dd fs_NotImplemented |
||
90 | mario79 | 660 | fs_NumCdServices = ($ - fs_CdServices)/4 |
661 | |||
87 | mario79 | 662 | ;******************************************************* |
663 | |||
75 | diamond | 664 | fs_HasRamdisk: |
585 | mario79 | 665 | mov al, 1 ; we always have ramdisk |
666 | ret |
||
75 | diamond | 667 | |
668 | fs_HasFloppy: |
||
585 | mario79 | 669 | cmp byte [DRIVE_DATA], 0 |
670 | setnz al |
||
671 | ret |
||
75 | diamond | 672 | |
673 | fs_HasHd0: |
||
585 | mario79 | 674 | mov al, [DRIVE_DATA+1] |
675 | and al, 11000000b |
||
676 | cmp al, 01000000b |
||
677 | setz al |
||
678 | ret |
||
75 | diamond | 679 | fs_HasHd1: |
585 | mario79 | 680 | mov al, [DRIVE_DATA+1] |
681 | and al, 00110000b |
||
682 | cmp al, 00010000b |
||
683 | setz al |
||
684 | ret |
||
75 | diamond | 685 | fs_HasHd2: |
585 | mario79 | 686 | mov al, [DRIVE_DATA+1] |
687 | and al, 00001100b |
||
688 | cmp al, 00000100b |
||
689 | setz al |
||
690 | ret |
||
75 | diamond | 691 | fs_HasHd3: |
585 | mario79 | 692 | mov al, [DRIVE_DATA+1] |
693 | and al, 00000011b |
||
694 | cmp al, 00000001b |
||
695 | setz al |
||
696 | ret |
||
75 | diamond | 697 | |
87 | mario79 | 698 | ;******************************************************* |
699 | fs_HasCd0: |
||
585 | mario79 | 700 | mov al, [DRIVE_DATA+1] |
701 | and al, 11000000b |
||
702 | cmp al, 10000000b |
||
703 | setz al |
||
704 | ret |
||
87 | mario79 | 705 | fs_HasCd1: |
585 | mario79 | 706 | mov al, [DRIVE_DATA+1] |
707 | and al, 00110000b |
||
708 | cmp al, 00100000b |
||
709 | setz al |
||
710 | ret |
||
87 | mario79 | 711 | fs_HasCd2: |
585 | mario79 | 712 | mov al, [DRIVE_DATA+1] |
713 | and al, 00001100b |
||
714 | cmp al, 00001000b |
||
715 | setz al |
||
716 | ret |
||
87 | mario79 | 717 | fs_HasCd3: |
585 | mario79 | 718 | mov al, [DRIVE_DATA+1] |
719 | and al, 00000011b |
||
720 | cmp al, 00000010b |
||
721 | setz al |
||
722 | ret |
||
237 | serge | 723 | ;******************************************************* |
87 | mario79 | 724 | |
75 | diamond | 725 | ; fs_NextXXX functions: |
726 | ; in: eax = partition number, from which start to scan |
||
727 | ; out: CF=1 => no more partitions |
||
728 | ; CF=0 => eax=next partition number |
||
729 | |||
730 | fs_NextRamdisk: |
||
731 | ; we always have /rd/1 |
||
585 | mario79 | 732 | test eax, eax |
733 | stc |
||
734 | jnz @f |
||
735 | mov al, 1 |
||
736 | clc |
||
75 | diamond | 737 | @@: |
585 | mario79 | 738 | ret |
75 | diamond | 739 | |
740 | fs_NextFloppy: |
||
381 | serge | 741 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 742 | test byte [DRIVE_DATA], 0xF0 |
743 | jz .no1 |
||
744 | test eax, eax |
||
745 | jnz .no1 |
||
746 | inc eax |
||
747 | ret ; CF cleared |
||
75 | diamond | 748 | .no1: |
585 | mario79 | 749 | test byte [DRIVE_DATA], 0x0F |
750 | jz .no2 |
||
751 | cmp al, 2 |
||
752 | jae .no2 |
||
753 | mov al, 2 |
||
754 | clc |
||
755 | ret |
||
75 | diamond | 756 | .no2: |
585 | mario79 | 757 | stc |
758 | ret |
||
75 | diamond | 759 | |
760 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
761 | fs_NextHd0: |
||
585 | mario79 | 762 | push 0 |
763 | jmp fs_NextHd |
||
75 | diamond | 764 | fs_NextHd1: |
585 | mario79 | 765 | push 1 |
766 | jmp fs_NextHd |
||
75 | diamond | 767 | fs_NextHd2: |
585 | mario79 | 768 | push 2 |
769 | jmp fs_NextHd |
||
75 | diamond | 770 | fs_NextHd3: |
585 | mario79 | 771 | push 3 |
75 | diamond | 772 | fs_NextHd: |
585 | mario79 | 773 | pop ecx |
774 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
775 | cmp eax, ecx |
||
776 | jae fs_NextFloppy.no2 |
||
777 | inc eax |
||
778 | clc |
||
779 | ret |
||
237 | serge | 780 | |
87 | mario79 | 781 | ;******************************************************* |
782 | fs_NextCd: |
||
783 | ; we always have /cdX/1 |
||
585 | mario79 | 784 | test eax, eax |
785 | stc |
||
786 | jnz @f |
||
787 | mov al, 1 |
||
788 | clc |
||
87 | mario79 | 789 | @@: |
585 | mario79 | 790 | ret |
87 | mario79 | 791 | ;******************************************************* |
792 | |||
709 | diamond | 793 | ; Additional FS handlers. |
794 | ; This handler gets the control each time when fn 70 is called |
||
795 | ; with unknown item of root subdirectory. |
||
796 | ; in: esi -> name |
||
797 | ; ebp = 0 or rest of name relative to esi |
||
798 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
799 | ; but instead pop return address and return directly to the caller |
||
800 | ; otherwise simply return |
||
801 | |||
802 | ; here we test for /bd |
||
803 | biosdisk_handler: |
||
804 | cmp [NumBiosDisks], 0 |
||
805 | jz .ret |
||
806 | mov al, [esi] |
||
807 | or al, 20h |
||
808 | cmp al, 'b' |
||
809 | jnz .ret |
||
810 | mov al, [esi+1] |
||
811 | or al, 20h |
||
812 | cmp al, 'd' |
||
813 | jnz .ret |
||
814 | push esi |
||
815 | inc esi |
||
816 | inc esi |
||
817 | cmp byte [esi], '0' |
||
818 | jb .ret2 |
||
819 | cmp byte [esi], '9' |
||
820 | ja .ret2 |
||
821 | xor edx, edx |
||
822 | @@: |
||
823 | lodsb |
||
824 | test al, al |
||
825 | jz .ok |
||
826 | cmp al, '/' |
||
827 | jz .ok |
||
828 | sub al, '0' |
||
829 | cmp al, 9 |
||
830 | ja .ret2 |
||
831 | lea edx, [edx*5] |
||
832 | lea edx, [edx*2+eax] |
||
833 | jmp @b |
||
834 | .ret2: |
||
835 | pop esi |
||
836 | .ret: |
||
837 | ret |
||
838 | .ok: |
||
839 | cmp al, '/' |
||
840 | jz @f |
||
841 | dec esi |
||
842 | @@: |
||
843 | add dl, 80h |
||
844 | xor ecx, ecx |
||
845 | @@: |
||
846 | cmp dl, [BiosDisksData+ecx*4] |
||
847 | jz .ok2 |
||
848 | inc ecx |
||
849 | cmp ecx, [NumBiosDisks] |
||
850 | jb @b |
||
851 | jmp .ret2 |
||
852 | .ok2: |
||
853 | add esp, 8 |
||
854 | test al, al |
||
855 | jnz @f |
||
856 | mov esi, fs_BdNext |
||
857 | jmp file_system_lfn.maindir_noesi |
||
858 | @@: |
||
859 | push ecx |
||
860 | push fs_OnBd |
||
861 | mov edi, esp |
||
862 | jmp file_system_lfn.found2 |
||
863 | |||
864 | fs_BdNext: |
||
865 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
866 | inc eax |
||
867 | cmc |
||
868 | ret |
||
869 | |||
870 | fs_OnBd: |
||
871 | pop edx edx |
||
872 | ; edx = disk number, ecx = partition number |
||
873 | ; esi+ebp = name |
||
874 | call reserve_hd1 |
||
875 | add edx, 0x80 |
||
876 | mov [hdpos], edx |
||
877 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
878 | jmp fs_OnHdAndBd |
||
879 | |||
880 | ; This handler is called when virtual root is enumerated |
||
881 | ; and must return all items which can be handled by this. |
||
882 | ; It is called several times, first time with eax=0 |
||
883 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
884 | ; out: eax = 0 => no more items |
||
885 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
886 | |||
887 | ; here we enumerate existing BIOS disks /bd |
||
888 | biosdisk_enum_root: |
||
889 | cmp eax, [NumBiosDisks] |
||
890 | jae .end |
||
891 | push eax |
||
892 | movzx eax, byte [BiosDisksData+eax*4] |
||
893 | sub al, 80h |
||
894 | push eax |
||
895 | mov al, 'b' |
||
896 | stosb |
||
897 | mov al, 'd' |
||
898 | stosb |
||
899 | pop eax |
||
900 | cmp al, 10 |
||
901 | jae .big |
||
902 | add al, '0' |
||
903 | stosb |
||
904 | mov byte [edi], 0 |
||
905 | pop eax |
||
906 | inc eax |
||
907 | ret |
||
908 | .end: |
||
909 | xor eax, eax |
||
910 | ret |
||
911 | .big: |
||
912 | push ecx |
||
913 | push -'0' |
||
914 | mov ecx, 10 |
||
915 | @@: |
||
916 | xor edx, edx |
||
917 | div ecx |
||
918 | push edx |
||
919 | test eax, eax |
||
920 | jnz @b |
||
921 | xchg eax, edx |
||
922 | @@: |
||
923 | pop eax |
||
924 | add al, '0' |
||
925 | stosb |
||
926 | jnz @b |
||
927 | pop ecx |
||
928 | pop eax |
||
929 | inc eax |
||
930 | ret |
||
931 | |||
521 | diamond | 932 | process_replace_file_name: |
585 | mario79 | 933 | mov ebp, [full_file_name_table] |
934 | mov edi, [full_file_name_table.size] |
||
935 | dec edi |
||
936 | shl edi, 7 |
||
937 | add edi, ebp |
||
521 | diamond | 938 | .loop: |
585 | mario79 | 939 | cmp edi, ebp |
940 | jb .notfound |
||
941 | push esi edi |
||
521 | diamond | 942 | @@: |
585 | mario79 | 943 | cmp byte [edi], 0 |
944 | jz .dest_done |
||
945 | lodsb |
||
946 | test al, al |
||
947 | jz .cont |
||
948 | or al, 20h |
||
949 | scasb |
||
950 | jz @b |
||
951 | jmp .cont |
||
521 | diamond | 952 | .dest_done: |
585 | mario79 | 953 | cmp byte [esi], 0 |
954 | jz .found |
||
955 | cmp byte [esi], '/' |
||
956 | jnz .cont |
||
957 | inc esi |
||
958 | jmp .found |
||
521 | diamond | 959 | .cont: |
585 | mario79 | 960 | pop edi esi |
961 | sub edi, 128 |
||
962 | jmp .loop |
||
521 | diamond | 963 | .found: |
585 | mario79 | 964 | pop edi eax |
965 | mov ebp, esi |
||
966 | cmp byte [esi], 0 |
||
967 | lea esi, [edi+64] |
||
968 | jnz .ret |
||
521 | diamond | 969 | .notfound: |
585 | mario79 | 970 | xor ebp, ebp |
521 | diamond | 971 | .ret: |
585 | mario79 | 972 | ret |
521 | diamond | 973 | |
974 | sys_current_directory: |
||
1304 | Lrz | 975 | ; mov esi, [current_slot] |
976 | ; mov esi, [esi+APPDATA.cur_dir] |
||
977 | ; mov edx, esi |
||
978 | |||
1305 | diamond | 979 | ;get length string of appdata.cur_dir |
980 | mov eax, [current_slot] |
||
981 | mov edi, [eax+APPDATA.cur_dir] |
||
1304 | Lrz | 982 | |
983 | dec ebx |
||
585 | mario79 | 984 | jz .set |
1304 | Lrz | 985 | dec ebx |
585 | mario79 | 986 | jz .get |
987 | ret |
||
521 | diamond | 988 | .get: |
989 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
990 | ; for our code: ebx->buffer,ecx=len |
||
1304 | Lrz | 991 | max_cur_dir equ 0x1000 |
992 | |||
993 | mov ebx,edi |
||
994 | |||
995 | push ecx |
||
996 | push edi |
||
997 | |||
998 | xor eax,eax |
||
999 | mov ecx,max_cur_dir |
||
1000 | |||
1001 | repne scasb ;find zerro at and string |
||
1305 | diamond | 1002 | jnz .error ; no zero in cur_dir: internal error, should not happen |
1304 | Lrz | 1003 | |
1004 | sub edi,ebx ;lenght for copy |
||
1005 | inc edi |
||
1006 | mov [esp+32+8],edi ;return in eax |
||
1007 | |||
1305 | diamond | 1008 | cmp edx, edi |
1009 | jbe @f |
||
1010 | mov edx, edi |
||
1011 | @@: |
||
1012 | ;source string |
||
1304 | Lrz | 1013 | pop esi |
1014 | ;destination string |
||
1015 | pop edi |
||
1305 | diamond | 1016 | cmp edx, 1 |
1017 | jbe .ret |
||
1304 | Lrz | 1018 | |
1019 | mov al,'/' ;start string with '/' |
||
585 | mario79 | 1020 | stosb |
1304 | Lrz | 1021 | mov ecx,edx |
1022 | rep movsb ;copy string |
||
1023 | .ret: ret |
||
1024 | |||
1025 | .error: add esp,8 |
||
1026 | or dword [esp+32],-1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
585 | mario79 | 1027 | ret |
521 | diamond | 1028 | .set: |
1029 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1030 | ; for our code: ebx->string to set |
||
1289 | diamond | 1031 | ; use generic resolver with APPDATA.cur_dir as destination |
1304 | Lrz | 1032 | push max_cur_dir ;0x1000 |
1033 | push edi ;destination |
||
1034 | mov ebx,ecx |
||
1289 | diamond | 1035 | call get_full_file_name |
1036 | ret |
||
1037 | |||
1038 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
1039 | ; destroys all registers except ebp,esp |
||
1040 | get_full_file_name: |
||
1041 | push ebp |
||
1042 | mov esi, [current_slot] |
||
1043 | mov esi, [esi+APPDATA.cur_dir] |
||
1044 | mov edx, esi |
||
521 | diamond | 1045 | @@: |
585 | mario79 | 1046 | inc esi |
1047 | cmp byte [esi-1], 0 |
||
1048 | jnz @b |
||
1049 | dec esi |
||
1050 | cmp byte [ebx], '/' |
||
1051 | jz .set_absolute |
||
521 | diamond | 1052 | ; string gives relative path |
1289 | diamond | 1053 | mov edi, [esp+8] ; destination |
521 | diamond | 1054 | .relative: |
585 | mario79 | 1055 | cmp byte [ebx], 0 |
1056 | jz .set_ok |
||
1057 | cmp word [ebx], '.' |
||
1058 | jz .set_ok |
||
1059 | cmp word [ebx], './' |
||
1060 | jnz @f |
||
1061 | add ebx, 2 |
||
1062 | jmp .relative |
||
521 | diamond | 1063 | @@: |
585 | mario79 | 1064 | cmp word [ebx], '..' |
1065 | jnz .doset_relative |
||
1066 | cmp byte [ebx+2], 0 |
||
1067 | jz @f |
||
1068 | cmp byte [ebx+2], '/' |
||
1069 | jnz .doset_relative |
||
521 | diamond | 1070 | @@: |
585 | mario79 | 1071 | dec esi |
1072 | cmp byte [esi], '/' |
||
1073 | jnz @b |
||
1074 | add ebx, 3 |
||
1075 | jmp .relative |
||
1289 | diamond | 1076 | .set_ok: |
1077 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
1078 | jz .set_ok.cur_dir |
||
1079 | sub esi, edx |
||
1080 | cmp esi, [esp+12] |
||
1081 | jb .set_ok.copy |
||
1082 | .fail: |
||
1083 | mov byte [edi], 0 |
||
1084 | xor eax, eax ; fail |
||
1085 | pop ebp |
||
1086 | ret 8 |
||
1087 | .set_ok.copy: |
||
1088 | mov ecx, esi |
||
1089 | mov esi, edx |
||
1090 | rep movsb |
||
1091 | mov byte [edi], 0 |
||
1092 | .ret.ok: |
||
1093 | mov al, 1 ; ok |
||
1094 | pop ebp |
||
1095 | ret 8 |
||
1096 | .set_ok.cur_dir: |
||
1097 | mov byte [esi], 0 |
||
1098 | jmp .ret.ok |
||
521 | diamond | 1099 | .doset_relative: |
1289 | diamond | 1100 | cmp edx, edi |
1101 | jz .doset_relative.cur_dir |
||
1102 | sub esi, edx |
||
1103 | cmp esi, [esp+12] |
||
1104 | jae .fail |
||
1105 | mov ecx, esi |
||
1106 | mov esi, edx |
||
1107 | mov edx, edi |
||
1108 | rep movsb |
||
1109 | jmp .doset_relative.copy |
||
1110 | .doset_relative.cur_dir: |
||
1111 | mov edi, esi |
||
1112 | .doset_relative.copy: |
||
1113 | add edx, [esp+12] |
||
1114 | mov byte [edi], '/' |
||
1115 | inc edi |
||
1116 | cmp edi, edx |
||
1117 | jae .overflow |
||
521 | diamond | 1118 | @@: |
585 | mario79 | 1119 | mov al, [ebx] |
1120 | inc ebx |
||
1289 | diamond | 1121 | stosb |
585 | mario79 | 1122 | test al, al |
1289 | diamond | 1123 | jz .ret.ok |
1124 | cmp edi, edx |
||
585 | mario79 | 1125 | jb @b |
1289 | diamond | 1126 | .overflow: |
1127 | dec edi |
||
1128 | jmp .fail |
||
521 | diamond | 1129 | .set_absolute: |
585 | mario79 | 1130 | lea esi, [ebx+1] |
1131 | call process_replace_file_name |
||
1289 | diamond | 1132 | mov edi, [esp+8] |
1133 | mov edx, [esp+12] |
||
1134 | add edx, edi |
||
521 | diamond | 1135 | .set_copy: |
585 | mario79 | 1136 | lodsb |
1137 | stosb |
||
1138 | test al, al |
||
1139 | jz .set_part2 |
||
521 | diamond | 1140 | .set_copy_cont: |
585 | mario79 | 1141 | cmp edi, edx |
1142 | jb .set_copy |
||
1289 | diamond | 1143 | jmp .overflow |
521 | diamond | 1144 | .set_part2: |
585 | mario79 | 1145 | mov esi, ebp |
1146 | xor ebp, ebp |
||
1147 | test esi, esi |
||
1289 | diamond | 1148 | jz .ret.ok |
585 | mario79 | 1149 | mov byte [edi-1], '/' |
1378 | turbanoff | 1150 | jmp .set_copy_cont |
1151 |