Rev 1689 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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431 | serge | 1 | ;; ;; |
1289 | diamond | 2 | ;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; |
431 | serge | 3 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; ;; |
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5 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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6 | |||
593 | mikedld | 7 | $Revision: 3487 $ |
8 | |||
9 | |||
1491 | Lrz | 10 | image_of_eax EQU esp+32 |
11 | image_of_ebx EQU esp+20 |
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488 | spraid | 12 | |
72 | diamond | 13 | ; System function 70 - files with long names (LFN) |
71 | diamond | 14 | ; diamond, 2006 |
15 | |||
16 | iglobal |
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17 | ; in this table names must be in lowercase |
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18 | rootdirs: |
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585 | mario79 | 19 | db 2,'rd' |
20 | dd fs_OnRamdisk |
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21 | dd fs_NextRamdisk |
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22 | db 7,'ramdisk' |
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23 | dd fs_OnRamdisk |
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24 | dd fs_NextRamdisk |
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25 | db 3,'hd0' |
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26 | dd fs_OnHd0 |
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27 | dd fs_NextHd0 |
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28 | db 3,'hd1' |
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29 | dd fs_OnHd1 |
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30 | dd fs_NextHd1 |
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31 | db 3,'hd2' |
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32 | dd fs_OnHd2 |
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33 | dd fs_NextHd2 |
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34 | db 3,'hd3' |
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35 | dd fs_OnHd3 |
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36 | dd fs_NextHd3 |
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37 | db 0 |
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75 | diamond | 38 | |
87 | mario79 | 39 | |
75 | diamond | 40 | virtual_root_query: |
585 | mario79 | 41 | dd fs_HasRamdisk |
42 | db 'rd',0 |
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43 | dd fs_HasFloppy |
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44 | db 'fd',0 |
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45 | dd fs_HasHd0 |
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46 | db 'hd0',0 |
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47 | dd fs_HasHd1 |
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48 | db 'hd1',0 |
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49 | dd fs_HasHd2 |
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50 | db 'hd2',0 |
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51 | dd fs_HasHd3 |
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52 | db 'hd3',0 |
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53 | dd 0 |
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709 | diamond | 54 | |
55 | fs_additional_handlers: |
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56 | dd biosdisk_handler, biosdisk_enum_root |
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57 | ; add new handlers here |
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58 | dd 0 |
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59 | |||
71 | diamond | 60 | endg |
61 | file_system_lfn: |
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1491 | Lrz | 62 | ; in: ebx->fileinfo block |
71 | diamond | 63 | ; operation codes: |
72 | diamond | 64 | ; 0 : read file |
75 | diamond | 65 | ; 1 : read folder |
83 | diamond | 66 | ; 2 : create/rewrite file |
133 | diamond | 67 | ; 3 : write/append to file |
68 | ; 4 : set end of file |
||
86 | diamond | 69 | ; 5 : get file/directory attributes structure |
70 | ; 6 : set file/directory attributes structure |
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91 | diamond | 71 | ; 7 : start application |
171 | diamond | 72 | ; 8 : delete file |
321 | diamond | 73 | ; 9 : create directory |
71 | diamond | 74 | |
1379 | turbanoff | 75 | ; parse file name |
585 | mario79 | 76 | lea esi, [ebx+20] |
77 | lodsb |
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78 | test al, al |
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79 | jnz @f |
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80 | mov esi, [esi] |
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81 | lodsb |
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84 | diamond | 82 | @@: |
585 | mario79 | 83 | cmp al, '/' |
84 | jz .notcurdir |
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85 | dec esi |
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86 | mov ebp, esi |
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87 | test al, al |
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88 | jnz @f |
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89 | xor ebp, ebp |
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521 | diamond | 90 | @@: |
585 | mario79 | 91 | mov esi, [current_slot] |
92 | mov esi, [esi+APPDATA.cur_dir] |
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93 | jmp .parse_normal |
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521 | diamond | 94 | .notcurdir: |
585 | mario79 | 95 | cmp byte [esi], 0 |
96 | jz .rootdir |
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97 | call process_replace_file_name |
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521 | diamond | 98 | .parse_normal: |
585 | mario79 | 99 | cmp dword [ebx], 7 |
100 | jne @F |
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101 | mov edx, [ebx+4] |
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102 | mov ebx, [ebx+8] |
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103 | call fs_execute ; esi+ebp, ebx, edx |
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104 | mov [image_of_eax], eax |
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105 | ret |
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237 | serge | 106 | @@: |
585 | mario79 | 107 | mov edi, rootdirs-8 |
108 | xor ecx, ecx |
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109 | push esi |
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71 | diamond | 110 | .scan1: |
585 | mario79 | 111 | pop esi |
112 | add edi, ecx |
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113 | scasd |
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114 | scasd |
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115 | mov cl, byte [edi] |
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116 | test cl, cl |
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709 | diamond | 117 | jz .notfound_try |
585 | mario79 | 118 | inc edi |
119 | push esi |
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71 | diamond | 120 | @@: |
585 | mario79 | 121 | lodsb |
122 | or al, 20h |
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123 | scasb |
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124 | loopz @b |
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125 | jnz .scan1 |
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126 | lodsb |
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127 | cmp al, '/' |
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128 | jz .found1 |
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129 | test al, al |
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130 | jnz .scan1 |
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131 | pop eax |
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71 | diamond | 132 | ; directory /xxx |
133 | .maindir: |
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709 | diamond | 134 | mov esi, [edi+4] |
135 | .maindir_noesi: |
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585 | mario79 | 136 | cmp dword [ebx], 1 |
137 | jnz .access_denied |
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138 | xor eax, eax |
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1664 | art_zh | 139 | mov ebp, [ebx+12] ; |
140 | mov edx, [ebx+16] ; |
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465 | serge | 141 | ; add edx, std_application_base_address |
585 | mario79 | 142 | push dword [ebx+4] ; first block |
143 | mov ebx, [ebx+8] ; flags |
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78 | diamond | 144 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 145 | mov edi, edx |
709 | diamond | 146 | push ecx |
585 | mario79 | 147 | mov ecx, 32/4 |
148 | rep stosd |
||
709 | diamond | 149 | pop ecx |
585 | mario79 | 150 | mov byte [edx], 1 ; version |
75 | diamond | 151 | .maindir_loop: |
1379 | turbanoff | 152 | call esi |
585 | mario79 | 153 | jc .maindir_done |
154 | inc dword [edx+8] |
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155 | dec dword [esp] |
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156 | jns .maindir_loop |
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157 | dec ebp |
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158 | js .maindir_loop |
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159 | inc dword [edx+4] |
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160 | mov dword [edi], 0x10 ; attributes: folder |
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161 | mov dword [edi+4], 1 ; name type: UNICODE |
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162 | push eax |
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163 | xor eax, eax |
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164 | add edi, 8 |
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709 | diamond | 165 | push ecx |
585 | mario79 | 166 | mov ecx, 40/4-2 |
167 | rep stosd |
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709 | diamond | 168 | pop ecx |
585 | mario79 | 169 | pop eax |
170 | push eax edx |
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75 | diamond | 171 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 172 | push edi |
709 | diamond | 173 | push ecx |
585 | mario79 | 174 | push -'0' |
709 | diamond | 175 | mov ecx, 10 |
75 | diamond | 176 | @@: |
585 | mario79 | 177 | xor edx, edx |
178 | div ecx |
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179 | push edx |
||
180 | test eax, eax |
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181 | jnz @b |
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75 | diamond | 182 | @@: |
585 | mario79 | 183 | pop eax |
184 | add al, '0' |
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185 | stosb |
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186 | test bl, 1 ; UNICODE name? |
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187 | jz .ansi2 |
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188 | mov byte [edi], 0 |
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189 | inc edi |
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78 | diamond | 190 | .ansi2: |
585 | mario79 | 191 | test al, al |
192 | jnz @b |
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193 | mov byte [edi-1], 0 |
||
709 | diamond | 194 | pop ecx |
585 | mario79 | 195 | pop edi |
78 | diamond | 196 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 197 | add edi, 520 |
198 | test bl, 1 |
||
199 | jnz @f |
||
200 | sub edi, 520-264 |
||
78 | diamond | 201 | @@: |
585 | mario79 | 202 | pop edx eax |
203 | jmp .maindir_loop |
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75 | diamond | 204 | .maindir_done: |
585 | mario79 | 205 | pop eax |
206 | mov ebx, [edx+4] |
||
207 | xor eax, eax |
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208 | dec ebp |
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209 | js @f |
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210 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 211 | @@: |
585 | mario79 | 212 | mov [image_of_eax], eax |
213 | mov [image_of_ebx], ebx |
||
214 | ret |
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71 | diamond | 215 | ; directory / |
216 | .rootdir: |
||
585 | mario79 | 217 | cmp dword [ebx], 1 ; read folder? |
218 | jz .readroot |
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75 | diamond | 219 | .access_denied: |
585 | mario79 | 220 | mov dword [image_of_eax], 10 ; access denied |
221 | ret |
||
71 | diamond | 222 | |
75 | diamond | 223 | .readroot: |
224 | ; virtual root folder - special handler |
||
585 | mario79 | 225 | mov esi, virtual_root_query |
226 | mov ebp, [ebx+12] |
||
227 | mov edx, [ebx+16] |
||
465 | serge | 228 | ; add edx, std_application_base_address |
585 | mario79 | 229 | push dword [ebx+4] ; first block |
230 | mov ebx, [ebx+8] ; flags |
||
231 | xor eax, eax |
||
78 | diamond | 232 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 233 | mov edi, edx |
234 | mov ecx, 32/4 |
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235 | rep stosd |
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236 | mov byte [edx], 1 ; version |
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75 | diamond | 237 | .readroot_loop: |
585 | mario79 | 238 | cmp dword [esi], eax |
709 | diamond | 239 | jz .readroot_done_static |
585 | mario79 | 240 | call dword [esi] |
241 | add esi, 4 |
||
242 | test eax, eax |
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243 | jnz @f |
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75 | diamond | 244 | .readroot_next: |
585 | mario79 | 245 | or ecx, -1 |
246 | xchg esi, edi |
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247 | repnz scasb |
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248 | xchg esi, edi |
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249 | jmp .readroot_loop |
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75 | diamond | 250 | @@: |
585 | mario79 | 251 | xor eax, eax |
252 | inc dword [edx+8] |
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253 | dec dword [esp] |
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254 | jns .readroot_next |
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255 | dec ebp |
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256 | js .readroot_next |
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257 | inc dword [edx+4] |
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258 | mov dword [edi], 0x10 ; attributes: folder |
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709 | diamond | 259 | mov dword [edi+4], ebx ; name type: UNICODE |
585 | mario79 | 260 | add edi, 8 |
261 | mov ecx, 40/4-2 |
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262 | rep stosd |
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263 | push edi |
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75 | diamond | 264 | @@: |
585 | mario79 | 265 | lodsb |
266 | stosb |
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267 | test bl, 1 |
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268 | jz .ansi |
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269 | mov byte [edi], 0 |
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270 | inc edi |
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78 | diamond | 271 | .ansi: |
585 | mario79 | 272 | test eax, eax |
273 | jnz @b |
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274 | pop edi |
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275 | add edi, 520 |
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276 | test bl, 1 |
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277 | jnz .readroot_loop |
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278 | sub edi, 520-264 |
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279 | jmp .readroot_loop |
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709 | diamond | 280 | .readroot_done_static: |
281 | mov esi, fs_additional_handlers-8 |
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282 | sub esp, 16 |
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283 | .readroot_ah_loop: |
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284 | add esi, 8 |
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285 | cmp dword [esi], 0 |
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286 | jz .readroot_done |
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287 | xor eax, eax |
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288 | .readroot_ah_loop2: |
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289 | push edi |
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290 | lea edi, [esp+4] |
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291 | call dword [esi+4] |
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292 | pop edi |
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293 | test eax, eax |
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294 | jz .readroot_ah_loop |
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295 | inc dword [edx+8] |
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296 | dec dword [esp+16] |
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297 | jns .readroot_ah_loop2 |
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298 | dec ebp |
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299 | js .readroot_ah_loop2 |
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300 | push eax |
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301 | xor eax, eax |
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302 | inc dword [edx+4] |
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303 | mov dword [edi], 0x10 ; attributes: folder |
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304 | mov dword [edi+4], ebx |
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305 | add edi, 8 |
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306 | mov ecx, 40/4-2 |
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307 | rep stosd |
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308 | push esi edi |
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309 | lea esi, [esp+12] |
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310 | @@: |
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311 | lodsb |
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312 | stosb |
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313 | test bl, 1 |
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314 | jz .ansi3 |
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315 | mov byte [edi], 0 |
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316 | inc edi |
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317 | .ansi3: |
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318 | test al, al |
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319 | jnz @b |
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320 | pop edi esi eax |
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321 | add edi, 520 |
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322 | test bl, 1 |
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323 | jnz .readroot_ah_loop2 |
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324 | sub edi, 520-264 |
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325 | jmp .readroot_ah_loop2 |
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75 | diamond | 326 | .readroot_done: |
709 | diamond | 327 | add esp, 16 |
585 | mario79 | 328 | pop eax |
329 | mov ebx, [edx+4] |
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330 | xor eax, eax |
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331 | dec ebp |
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332 | js @f |
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333 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 334 | @@: |
585 | mario79 | 335 | mov [image_of_eax], eax |
336 | mov [image_of_ebx], ebx |
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337 | ret |
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709 | diamond | 338 | .notfound_try: |
339 | mov edi, fs_additional_handlers |
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340 | @@: |
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341 | cmp dword [edi], 0 |
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1270 | diamond | 342 | jz .notfound |
709 | diamond | 343 | call dword [edi] |
344 | scasd |
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345 | scasd |
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346 | jmp @b |
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521 | diamond | 347 | .notfound: |
585 | mario79 | 348 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
349 | and dword [image_of_ebx], 0 |
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350 | ret |
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75 | diamond | 351 | |
709 | diamond | 352 | .notfounda: |
353 | cmp edi, esp |
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354 | jnz .notfound |
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355 | add esp, 8 |
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356 | jmp .notfound |
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357 | |||
71 | diamond | 358 | .found1: |
585 | mario79 | 359 | pop eax |
360 | cmp byte [esi], 0 |
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361 | jz .maindir |
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709 | diamond | 362 | .found2: |
71 | diamond | 363 | ; read partition number |
585 | mario79 | 364 | xor ecx, ecx |
365 | xor eax, eax |
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71 | diamond | 366 | @@: |
585 | mario79 | 367 | lodsb |
368 | cmp al, '/' |
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369 | jz .done1 |
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370 | test al, al |
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371 | jz .done1 |
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372 | sub al, '0' |
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373 | cmp al, 9 |
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709 | diamond | 374 | ja .notfounda |
585 | mario79 | 375 | lea ecx, [ecx*5] |
376 | lea ecx, [ecx*2+eax] |
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377 | jmp @b |
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71 | diamond | 378 | .done1: |
709 | diamond | 379 | jecxz .notfounda |
585 | mario79 | 380 | test al, al |
381 | jnz @f |
||
382 | dec esi |
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71 | diamond | 383 | @@: |
585 | mario79 | 384 | cmp byte [esi], 0 |
385 | jnz @f |
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386 | test ebp, ebp |
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387 | jz @f |
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388 | mov esi, ebp |
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389 | xor ebp, ebp |
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521 | diamond | 390 | @@: |
75 | diamond | 391 | ; now [edi] contains handler address, ecx - partition number, |
392 | ; esi points to ASCIIZ string - rest of name |
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585 | mario79 | 393 | jmp dword [edi] |
71 | diamond | 394 | |
395 | ; handlers for devices |
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75 | diamond | 396 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 397 | ; in: ecx = partition number |
398 | ; esi -> relative (for device) name |
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399 | ; ebx -> fileinfo |
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521 | diamond | 400 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 401 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 402 | |
403 | fs_OnRamdisk: |
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585 | mario79 | 404 | cmp ecx, 1 |
405 | jnz file_system_lfn.notfound |
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406 | mov eax, [ebx] |
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407 | cmp eax, fs_NumRamdiskServices |
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408 | jae .not_impl |
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409 | mov ecx, [ebx+12] |
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410 | mov edx, [ebx+16] |
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465 | serge | 411 | ; add edx, std_application_base_address |
585 | mario79 | 412 | add ebx, 4 |
413 | call dword [fs_RamdiskServices + eax*4] |
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414 | mov [image_of_eax], eax |
||
415 | mov [image_of_ebx], ebx |
||
416 | ret |
||
71 | diamond | 417 | .not_impl: |
585 | mario79 | 418 | mov dword [image_of_eax], 2 ; not implemented |
419 | ret |
||
71 | diamond | 420 | |
86 | diamond | 421 | fs_NotImplemented: |
585 | mario79 | 422 | mov eax, 2 |
423 | ret |
||
86 | diamond | 424 | |
71 | diamond | 425 | fs_RamdiskServices: |
585 | mario79 | 426 | dd fs_RamdiskRead |
427 | dd fs_RamdiskReadFolder |
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428 | dd fs_RamdiskRewrite |
||
429 | dd fs_RamdiskWrite |
||
430 | dd fs_RamdiskSetFileEnd |
||
431 | dd fs_RamdiskGetFileInfo |
||
432 | dd fs_RamdiskSetFileInfo |
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433 | dd 0 |
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434 | dd fs_RamdiskDelete |
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435 | dd fs_RamdiskCreateFolder |
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83 | diamond | 436 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 437 | |
438 | fs_OnHd0: |
||
585 | mario79 | 439 | call reserve_hd1 |
440 | mov [hdbase], 0x1F0 |
||
441 | mov [hdid], 0 |
||
442 | push 1 |
||
443 | jmp fs_OnHd |
||
71 | diamond | 444 | fs_OnHd1: |
585 | mario79 | 445 | call reserve_hd1 |
446 | mov [hdbase], 0x1F0 |
||
447 | mov [hdid], 0x10 |
||
448 | push 2 |
||
449 | jmp fs_OnHd |
||
71 | diamond | 450 | fs_OnHd2: |
585 | mario79 | 451 | call reserve_hd1 |
452 | mov [hdbase], 0x170 |
||
453 | mov [hdid], 0 |
||
454 | push 3 |
||
455 | jmp fs_OnHd |
||
71 | diamond | 456 | fs_OnHd3: |
585 | mario79 | 457 | call reserve_hd1 |
458 | mov [hdbase], 0x170 |
||
459 | mov [hdid], 0x10 |
||
460 | push 4 |
||
71 | diamond | 461 | fs_OnHd: |
585 | mario79 | 462 | call reserve_hd_channel |
463 | pop eax |
||
464 | mov [hdpos], eax |
||
465 | cmp ecx, 0x100 |
||
709 | diamond | 466 | jae fs_OnHdAndBd.nf |
585 | mario79 | 467 | cmp cl, [DRIVE_DATA+1+eax] |
709 | diamond | 468 | fs_OnHdAndBd: |
585 | mario79 | 469 | jbe @f |
75 | diamond | 470 | .nf: |
585 | mario79 | 471 | call free_hd_channel |
472 | and [hd1_status], 0 |
||
473 | mov dword [image_of_eax], 5 ; not found |
||
474 | ret |
||
71 | diamond | 475 | @@: |
1378 | turbanoff | 476 | mov [known_part], ecx ; mov [fat32part], ecx |
585 | mario79 | 477 | push ebx esi |
478 | call choice_necessity_partition_1 |
||
479 | pop esi ebx |
||
480 | mov ecx, [ebx+12] |
||
481 | mov edx, [ebx+16] |
||
465 | serge | 482 | ; add edx, std_application_base_address |
585 | mario79 | 483 | mov eax, [ebx] |
484 | cmp eax, fs_NumHdServices |
||
485 | jae .not_impl |
||
486 | add ebx, 4 |
||
487 | call dword [fs_HdServices + eax*4] |
||
488 | call free_hd_channel |
||
489 | and [hd1_status], 0 |
||
490 | mov [image_of_eax], eax |
||
491 | mov [image_of_ebx], ebx |
||
492 | ret |
||
75 | diamond | 493 | .not_impl: |
585 | mario79 | 494 | call free_hd_channel |
495 | and [hd1_status], 0 |
||
496 | mov dword [image_of_eax], 2 ; not implemented |
||
497 | ret |
||
71 | diamond | 498 | |
499 | fs_HdServices: |
||
585 | mario79 | 500 | dd fs_HdRead |
501 | dd fs_HdReadFolder |
||
502 | dd fs_HdRewrite |
||
503 | dd fs_HdWrite |
||
504 | dd fs_HdSetFileEnd |
||
505 | dd fs_HdGetFileInfo |
||
506 | dd fs_HdSetFileInfo |
||
507 | dd 0 |
||
508 | dd fs_HdDelete |
||
509 | dd fs_HdCreateFolder |
||
83 | diamond | 510 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 511 | |
87 | mario79 | 512 | |
75 | diamond | 513 | fs_HasRamdisk: |
585 | mario79 | 514 | mov al, 1 ; we always have ramdisk |
515 | ret |
||
75 | diamond | 516 | |
517 | fs_HasFloppy: |
||
585 | mario79 | 518 | cmp byte [DRIVE_DATA], 0 |
519 | setnz al |
||
520 | ret |
||
75 | diamond | 521 | |
522 | fs_HasHd0: |
||
585 | mario79 | 523 | mov al, [DRIVE_DATA+1] |
524 | and al, 11000000b |
||
525 | cmp al, 01000000b |
||
526 | setz al |
||
527 | ret |
||
75 | diamond | 528 | fs_HasHd1: |
585 | mario79 | 529 | mov al, [DRIVE_DATA+1] |
530 | and al, 00110000b |
||
531 | cmp al, 00010000b |
||
532 | setz al |
||
533 | ret |
||
75 | diamond | 534 | fs_HasHd2: |
585 | mario79 | 535 | mov al, [DRIVE_DATA+1] |
536 | and al, 00001100b |
||
537 | cmp al, 00000100b |
||
538 | setz al |
||
539 | ret |
||
75 | diamond | 540 | fs_HasHd3: |
585 | mario79 | 541 | mov al, [DRIVE_DATA+1] |
542 | and al, 00000011b |
||
543 | cmp al, 00000001b |
||
544 | setz al |
||
545 | ret |
||
75 | diamond | 546 | |
87 | mario79 | 547 | ;******************************************************* |
548 | fs_HasCd0: |
||
585 | mario79 | 549 | mov al, [DRIVE_DATA+1] |
550 | and al, 11000000b |
||
551 | cmp al, 10000000b |
||
552 | setz al |
||
553 | ret |
||
87 | mario79 | 554 | fs_HasCd1: |
585 | mario79 | 555 | mov al, [DRIVE_DATA+1] |
556 | and al, 00110000b |
||
557 | cmp al, 00100000b |
||
558 | setz al |
||
559 | ret |
||
87 | mario79 | 560 | fs_HasCd2: |
585 | mario79 | 561 | mov al, [DRIVE_DATA+1] |
562 | and al, 00001100b |
||
563 | cmp al, 00001000b |
||
564 | setz al |
||
565 | ret |
||
87 | mario79 | 566 | fs_HasCd3: |
585 | mario79 | 567 | mov al, [DRIVE_DATA+1] |
568 | and al, 00000011b |
||
569 | cmp al, 00000010b |
||
570 | setz al |
||
571 | ret |
||
237 | serge | 572 | ;******************************************************* |
87 | mario79 | 573 | |
75 | diamond | 574 | ; fs_NextXXX functions: |
575 | ; in: eax = partition number, from which start to scan |
||
576 | ; out: CF=1 => no more partitions |
||
577 | ; CF=0 => eax=next partition number |
||
578 | |||
579 | fs_NextRamdisk: |
||
580 | ; we always have /rd/1 |
||
585 | mario79 | 581 | test eax, eax |
582 | stc |
||
583 | jnz @f |
||
584 | mov al, 1 |
||
585 | clc |
||
75 | diamond | 586 | @@: |
585 | mario79 | 587 | ret |
75 | diamond | 588 | |
589 | fs_NextFloppy: |
||
381 | serge | 590 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 591 | test byte [DRIVE_DATA], 0xF0 |
592 | jz .no1 |
||
593 | test eax, eax |
||
594 | jnz .no1 |
||
595 | inc eax |
||
596 | ret ; CF cleared |
||
75 | diamond | 597 | .no1: |
585 | mario79 | 598 | test byte [DRIVE_DATA], 0x0F |
599 | jz .no2 |
||
600 | cmp al, 2 |
||
601 | jae .no2 |
||
602 | mov al, 2 |
||
603 | clc |
||
604 | ret |
||
75 | diamond | 605 | .no2: |
585 | mario79 | 606 | stc |
607 | ret |
||
75 | diamond | 608 | |
609 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
610 | fs_NextHd0: |
||
585 | mario79 | 611 | push 0 |
612 | jmp fs_NextHd |
||
75 | diamond | 613 | fs_NextHd1: |
585 | mario79 | 614 | push 1 |
615 | jmp fs_NextHd |
||
75 | diamond | 616 | fs_NextHd2: |
585 | mario79 | 617 | push 2 |
618 | jmp fs_NextHd |
||
75 | diamond | 619 | fs_NextHd3: |
585 | mario79 | 620 | push 3 |
75 | diamond | 621 | fs_NextHd: |
585 | mario79 | 622 | pop ecx |
623 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
624 | cmp eax, ecx |
||
625 | jae fs_NextFloppy.no2 |
||
626 | inc eax |
||
627 | clc |
||
628 | ret |
||
237 | serge | 629 | |
87 | mario79 | 630 | ;******************************************************* |
631 | fs_NextCd: |
||
632 | ; we always have /cdX/1 |
||
585 | mario79 | 633 | test eax, eax |
634 | stc |
||
635 | jnz @f |
||
636 | mov al, 1 |
||
637 | clc |
||
87 | mario79 | 638 | @@: |
585 | mario79 | 639 | ret |
87 | mario79 | 640 | ;******************************************************* |
641 | |||
709 | diamond | 642 | ; Additional FS handlers. |
643 | ; This handler gets the control each time when fn 70 is called |
||
644 | ; with unknown item of root subdirectory. |
||
645 | ; in: esi -> name |
||
646 | ; ebp = 0 or rest of name relative to esi |
||
647 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
648 | ; but instead pop return address and return directly to the caller |
||
649 | ; otherwise simply return |
||
650 | |||
651 | ; here we test for /bd |
||
652 | biosdisk_handler: |
||
653 | cmp [NumBiosDisks], 0 |
||
654 | jz .ret |
||
655 | mov al, [esi] |
||
656 | or al, 20h |
||
657 | cmp al, 'b' |
||
658 | jnz .ret |
||
659 | mov al, [esi+1] |
||
660 | or al, 20h |
||
661 | cmp al, 'd' |
||
662 | jnz .ret |
||
663 | push esi |
||
664 | inc esi |
||
665 | inc esi |
||
666 | cmp byte [esi], '0' |
||
667 | jb .ret2 |
||
668 | cmp byte [esi], '9' |
||
669 | ja .ret2 |
||
670 | xor edx, edx |
||
671 | @@: |
||
672 | lodsb |
||
673 | test al, al |
||
674 | jz .ok |
||
675 | cmp al, '/' |
||
676 | jz .ok |
||
677 | sub al, '0' |
||
678 | cmp al, 9 |
||
679 | ja .ret2 |
||
680 | lea edx, [edx*5] |
||
681 | lea edx, [edx*2+eax] |
||
682 | jmp @b |
||
683 | .ret2: |
||
684 | pop esi |
||
685 | .ret: |
||
686 | ret |
||
687 | .ok: |
||
688 | cmp al, '/' |
||
689 | jz @f |
||
690 | dec esi |
||
691 | @@: |
||
692 | add dl, 80h |
||
693 | xor ecx, ecx |
||
694 | @@: |
||
695 | cmp dl, [BiosDisksData+ecx*4] |
||
696 | jz .ok2 |
||
697 | inc ecx |
||
698 | cmp ecx, [NumBiosDisks] |
||
699 | jb @b |
||
700 | jmp .ret2 |
||
701 | .ok2: |
||
702 | add esp, 8 |
||
703 | test al, al |
||
704 | jnz @f |
||
705 | mov esi, fs_BdNext |
||
706 | jmp file_system_lfn.maindir_noesi |
||
707 | @@: |
||
708 | push ecx |
||
709 | push fs_OnBd |
||
710 | mov edi, esp |
||
711 | jmp file_system_lfn.found2 |
||
712 | |||
713 | fs_BdNext: |
||
714 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
715 | inc eax |
||
716 | cmc |
||
717 | ret |
||
718 | |||
719 | fs_OnBd: |
||
720 | pop edx edx |
||
721 | ; edx = disk number, ecx = partition number |
||
722 | ; esi+ebp = name |
||
723 | call reserve_hd1 |
||
724 | add edx, 0x80 |
||
725 | mov [hdpos], edx |
||
726 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
727 | jmp fs_OnHdAndBd |
||
728 | |||
729 | ; This handler is called when virtual root is enumerated |
||
730 | ; and must return all items which can be handled by this. |
||
731 | ; It is called several times, first time with eax=0 |
||
732 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
733 | ; out: eax = 0 => no more items |
||
734 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
735 | |||
736 | ; here we enumerate existing BIOS disks /bd |
||
737 | biosdisk_enum_root: |
||
738 | cmp eax, [NumBiosDisks] |
||
739 | jae .end |
||
740 | push eax |
||
741 | movzx eax, byte [BiosDisksData+eax*4] |
||
742 | sub al, 80h |
||
743 | push eax |
||
744 | mov al, 'b' |
||
745 | stosb |
||
746 | mov al, 'd' |
||
747 | stosb |
||
748 | pop eax |
||
749 | cmp al, 10 |
||
750 | jae .big |
||
751 | add al, '0' |
||
752 | stosb |
||
753 | mov byte [edi], 0 |
||
754 | pop eax |
||
755 | inc eax |
||
756 | ret |
||
757 | .end: |
||
758 | xor eax, eax |
||
759 | ret |
||
760 | .big: |
||
1689 | art_zh | 761 | push ecx edx |
709 | diamond | 762 | push -'0' |
763 | mov ecx, 10 |
||
764 | @@: |
||
765 | xor edx, edx |
||
766 | div ecx |
||
767 | push edx |
||
768 | test eax, eax |
||
769 | jnz @b |
||
770 | xchg eax, edx |
||
771 | @@: |
||
772 | pop eax |
||
773 | add al, '0' |
||
774 | stosb |
||
775 | jnz @b |
||
1689 | art_zh | 776 | pop edx ecx |
709 | diamond | 777 | pop eax |
778 | inc eax |
||
779 | ret |
||
780 | |||
521 | diamond | 781 | process_replace_file_name: |
585 | mario79 | 782 | mov ebp, [full_file_name_table] |
783 | mov edi, [full_file_name_table.size] |
||
784 | dec edi |
||
785 | shl edi, 7 |
||
786 | add edi, ebp |
||
521 | diamond | 787 | .loop: |
585 | mario79 | 788 | cmp edi, ebp |
789 | jb .notfound |
||
790 | push esi edi |
||
521 | diamond | 791 | @@: |
585 | mario79 | 792 | cmp byte [edi], 0 |
793 | jz .dest_done |
||
794 | lodsb |
||
795 | test al, al |
||
796 | jz .cont |
||
797 | or al, 20h |
||
798 | scasb |
||
799 | jz @b |
||
800 | jmp .cont |
||
521 | diamond | 801 | .dest_done: |
585 | mario79 | 802 | cmp byte [esi], 0 |
803 | jz .found |
||
804 | cmp byte [esi], '/' |
||
805 | jnz .cont |
||
806 | inc esi |
||
807 | jmp .found |
||
521 | diamond | 808 | .cont: |
585 | mario79 | 809 | pop edi esi |
810 | sub edi, 128 |
||
811 | jmp .loop |
||
521 | diamond | 812 | .found: |
585 | mario79 | 813 | pop edi eax |
814 | mov ebp, esi |
||
815 | cmp byte [esi], 0 |
||
816 | lea esi, [edi+64] |
||
817 | jnz .ret |
||
521 | diamond | 818 | .notfound: |
585 | mario79 | 819 | xor ebp, ebp |
521 | diamond | 820 | .ret: |
585 | mario79 | 821 | ret |
521 | diamond | 822 | |
823 | sys_current_directory: |
||
1304 | Lrz | 824 | ; mov esi, [current_slot] |
825 | ; mov esi, [esi+APPDATA.cur_dir] |
||
826 | ; mov edx, esi |
||
827 | |||
1305 | diamond | 828 | ;get length string of appdata.cur_dir |
829 | mov eax, [current_slot] |
||
830 | mov edi, [eax+APPDATA.cur_dir] |
||
1304 | Lrz | 831 | |
832 | dec ebx |
||
585 | mario79 | 833 | jz .set |
1304 | Lrz | 834 | dec ebx |
585 | mario79 | 835 | jz .get |
836 | ret |
||
521 | diamond | 837 | .get: |
838 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
839 | ; for our code: ebx->buffer,ecx=len |
||
1304 | Lrz | 840 | max_cur_dir equ 0x1000 |
841 | |||
842 | mov ebx,edi |
||
843 | |||
844 | push ecx |
||
845 | push edi |
||
846 | |||
847 | xor eax,eax |
||
848 | mov ecx,max_cur_dir |
||
849 | |||
850 | repne scasb ;find zerro at and string |
||
1305 | diamond | 851 | jnz .error ; no zero in cur_dir: internal error, should not happen |
1304 | Lrz | 852 | |
853 | sub edi,ebx ;lenght for copy |
||
854 | inc edi |
||
855 | mov [esp+32+8],edi ;return in eax |
||
856 | |||
1305 | diamond | 857 | cmp edx, edi |
858 | jbe @f |
||
859 | mov edx, edi |
||
860 | @@: |
||
861 | ;source string |
||
1304 | Lrz | 862 | pop esi |
863 | ;destination string |
||
864 | pop edi |
||
1305 | diamond | 865 | cmp edx, 1 |
866 | jbe .ret |
||
1304 | Lrz | 867 | |
868 | mov al,'/' ;start string with '/' |
||
585 | mario79 | 869 | stosb |
1304 | Lrz | 870 | mov ecx,edx |
871 | rep movsb ;copy string |
||
872 | .ret: ret |
||
873 | |||
874 | .error: add esp,8 |
||
875 | or dword [esp+32],-1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
585 | mario79 | 876 | ret |
521 | diamond | 877 | .set: |
878 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
879 | ; for our code: ebx->string to set |
||
1289 | diamond | 880 | ; use generic resolver with APPDATA.cur_dir as destination |
1304 | Lrz | 881 | push max_cur_dir ;0x1000 |
882 | push edi ;destination |
||
883 | mov ebx,ecx |
||
1289 | diamond | 884 | call get_full_file_name |
885 | ret |
||
886 | |||
887 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
888 | ; destroys all registers except ebp,esp |
||
889 | get_full_file_name: |
||
890 | push ebp |
||
891 | mov esi, [current_slot] |
||
892 | mov esi, [esi+APPDATA.cur_dir] |
||
893 | mov edx, esi |
||
521 | diamond | 894 | @@: |
585 | mario79 | 895 | inc esi |
896 | cmp byte [esi-1], 0 |
||
897 | jnz @b |
||
898 | dec esi |
||
899 | cmp byte [ebx], '/' |
||
900 | jz .set_absolute |
||
521 | diamond | 901 | ; string gives relative path |
1289 | diamond | 902 | mov edi, [esp+8] ; destination |
521 | diamond | 903 | .relative: |
585 | mario79 | 904 | cmp byte [ebx], 0 |
905 | jz .set_ok |
||
906 | cmp word [ebx], '.' |
||
907 | jz .set_ok |
||
908 | cmp word [ebx], './' |
||
909 | jnz @f |
||
910 | add ebx, 2 |
||
911 | jmp .relative |
||
521 | diamond | 912 | @@: |
585 | mario79 | 913 | cmp word [ebx], '..' |
914 | jnz .doset_relative |
||
915 | cmp byte [ebx+2], 0 |
||
916 | jz @f |
||
917 | cmp byte [ebx+2], '/' |
||
918 | jnz .doset_relative |
||
521 | diamond | 919 | @@: |
585 | mario79 | 920 | dec esi |
921 | cmp byte [esi], '/' |
||
922 | jnz @b |
||
923 | add ebx, 3 |
||
924 | jmp .relative |
||
1289 | diamond | 925 | .set_ok: |
926 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
927 | jz .set_ok.cur_dir |
||
928 | sub esi, edx |
||
929 | cmp esi, [esp+12] |
||
930 | jb .set_ok.copy |
||
931 | .fail: |
||
932 | mov byte [edi], 0 |
||
933 | xor eax, eax ; fail |
||
934 | pop ebp |
||
935 | ret 8 |
||
936 | .set_ok.copy: |
||
937 | mov ecx, esi |
||
938 | mov esi, edx |
||
939 | rep movsb |
||
940 | mov byte [edi], 0 |
||
941 | .ret.ok: |
||
942 | mov al, 1 ; ok |
||
943 | pop ebp |
||
944 | ret 8 |
||
945 | .set_ok.cur_dir: |
||
946 | mov byte [esi], 0 |
||
947 | jmp .ret.ok |
||
521 | diamond | 948 | .doset_relative: |
1289 | diamond | 949 | cmp edx, edi |
950 | jz .doset_relative.cur_dir |
||
951 | sub esi, edx |
||
952 | cmp esi, [esp+12] |
||
953 | jae .fail |
||
954 | mov ecx, esi |
||
955 | mov esi, edx |
||
956 | mov edx, edi |
||
957 | rep movsb |
||
958 | jmp .doset_relative.copy |
||
959 | .doset_relative.cur_dir: |
||
960 | mov edi, esi |
||
961 | .doset_relative.copy: |
||
962 | add edx, [esp+12] |
||
963 | mov byte [edi], '/' |
||
964 | inc edi |
||
965 | cmp edi, edx |
||
966 | jae .overflow |
||
521 | diamond | 967 | @@: |
585 | mario79 | 968 | mov al, [ebx] |
969 | inc ebx |
||
1289 | diamond | 970 | stosb |
585 | mario79 | 971 | test al, al |
1289 | diamond | 972 | jz .ret.ok |
973 | cmp edi, edx |
||
585 | mario79 | 974 | jb @b |
1289 | diamond | 975 | .overflow: |
976 | dec edi |
||
977 | jmp .fail |
||
521 | diamond | 978 | .set_absolute: |
585 | mario79 | 979 | lea esi, [ebx+1] |
980 | call process_replace_file_name |
||
1289 | diamond | 981 | mov edi, [esp+8] |
982 | mov edx, [esp+12] |
||
983 | add edx, edi |
||
521 | diamond | 984 | .set_copy: |
585 | mario79 | 985 | lodsb |
986 | stosb |
||
987 | test al, al |
||
988 | jz .set_part2 |
||
521 | diamond | 989 | .set_copy_cont: |
585 | mario79 | 990 | cmp edi, edx |
991 | jb .set_copy |
||
1289 | diamond | 992 | jmp .overflow |
521 | diamond | 993 | .set_part2: |
585 | mario79 | 994 | mov esi, ebp |
995 | xor ebp, ebp |
||
996 | test esi, esi |
||
1289 | diamond | 997 | jz .ret.ok |
585 | mario79 | 998 | mov byte [edi-1], '/' |
1379 | turbanoff | 999 | jmp .set_copy_cont |
1664 | art_zh | 1000 | |
1001 | ; =============== moved from fs/iso9660.inc |
||
1002 | |||
1003 | char_todown: |
||
1004 | ; convert character to uppercase, using cp866 encoding |
||
1005 | ; in: al=symbol |
||
1006 | ; out: al=converted symbol |
||
1007 | cmp al, 'A' |
||
1008 | jb .ret |
||
1009 | cmp al, 'Z' |
||
1010 | jbe .az |
||
1011 | cmp al, '' |
||
1012 | jb .ret |
||
1013 | cmp al, '' |
||
1014 | jb .rus1 |
||
1015 | cmp al, '' |
||
1016 | ja .ret |
||
1017 | ; 0x90-0x9F -> 0xE0-0xEF |
||
1018 | add al, ''-'' |
||
1019 | .ret: |
||
1020 | ret |
||
1021 | .rus1: |
||
1022 | ; 0x80-0x8F -> 0xA0-0xAF |
||
1023 | .az: |
||
1024 | add al, 0x20 |
||
1025 | ret |
||
1026 | |||
1027 | uni2ansi_char: |
||
1028 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
||
1029 | ; in: ax=UNICODE character |
||
1030 | ; out: al=converted ANSI character |
||
1031 | cmp ax, 0x80 |
||
1032 | jb .ascii |
||
1033 | cmp ax, 0x401 |
||
1034 | jz .yo1 |
||
1035 | cmp ax, 0x451 |
||
1036 | jz .yo2 |
||
1037 | cmp ax, 0x410 |
||
1038 | jb .unk |
||
1039 | cmp ax, 0x440 |
||
1040 | jb .rus1 |
||
1041 | cmp ax, 0x450 |
||
1042 | jb .rus2 |
||
1043 | .unk: |
||
1044 | mov al, '_' |
||
1045 | jmp .doit |
||
1046 | .yo1: |
||
1047 | mov al, '' |
||
1048 | jmp .doit |
||
1049 | .yo2: |
||
1050 | mov al, '' |
||
1051 | jmp .doit |
||
1052 | .rus1: |
||
1053 | ; 0x410-0x43F -> 0x80-0xAF |
||
1054 | add al, 0x70 |
||
1055 | jmp .doit |
||
1056 | .rus2: |
||
1057 | ; 0x440-0x44F -> 0xE0-0xEF |
||
1058 | add al, 0xA0 |
||
1059 | .ascii: |
||
1060 | .doit: |
||
1061 | ret |