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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: 1491 $ |
9 | |||
10 | |||
1491 | Lrz | 11 | image_of_eax EQU esp+32 |
12 | image_of_ebx EQU esp+20 |
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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 | file_system_lfn: |
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1491 | Lrz | 93 | ; in: ebx->fileinfo block |
71 | diamond | 94 | ; operation codes: |
72 | diamond | 95 | ; 0 : read file |
75 | diamond | 96 | ; 1 : read folder |
83 | diamond | 97 | ; 2 : create/rewrite file |
133 | diamond | 98 | ; 3 : write/append to file |
99 | ; 4 : set end of file |
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86 | diamond | 100 | ; 5 : get file/directory attributes structure |
101 | ; 6 : set file/directory attributes structure |
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91 | diamond | 102 | ; 7 : start application |
171 | diamond | 103 | ; 8 : delete file |
321 | diamond | 104 | ; 9 : create directory |
71 | diamond | 105 | |
1379 | turbanoff | 106 | ; parse file name |
585 | mario79 | 107 | lea esi, [ebx+20] |
108 | lodsb |
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109 | test al, al |
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110 | jnz @f |
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111 | mov esi, [esi] |
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112 | lodsb |
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84 | diamond | 113 | @@: |
585 | mario79 | 114 | cmp al, '/' |
115 | jz .notcurdir |
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116 | dec esi |
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117 | mov ebp, esi |
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118 | test al, al |
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119 | jnz @f |
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120 | xor ebp, ebp |
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521 | diamond | 121 | @@: |
585 | mario79 | 122 | mov esi, [current_slot] |
123 | mov esi, [esi+APPDATA.cur_dir] |
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124 | jmp .parse_normal |
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521 | diamond | 125 | .notcurdir: |
585 | mario79 | 126 | cmp byte [esi], 0 |
127 | jz .rootdir |
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128 | call process_replace_file_name |
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521 | diamond | 129 | .parse_normal: |
585 | mario79 | 130 | cmp dword [ebx], 7 |
131 | jne @F |
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132 | mov edx, [ebx+4] |
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133 | mov ebx, [ebx+8] |
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134 | call fs_execute ; esi+ebp, ebx, edx |
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135 | mov [image_of_eax], eax |
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136 | ret |
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237 | serge | 137 | @@: |
585 | mario79 | 138 | mov edi, rootdirs-8 |
139 | xor ecx, ecx |
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140 | push esi |
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71 | diamond | 141 | .scan1: |
585 | mario79 | 142 | pop esi |
143 | add edi, ecx |
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144 | scasd |
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145 | scasd |
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146 | mov cl, byte [edi] |
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147 | test cl, cl |
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709 | diamond | 148 | jz .notfound_try |
585 | mario79 | 149 | inc edi |
150 | push esi |
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71 | diamond | 151 | @@: |
585 | mario79 | 152 | lodsb |
153 | or al, 20h |
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154 | scasb |
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155 | loopz @b |
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156 | jnz .scan1 |
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157 | lodsb |
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158 | cmp al, '/' |
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159 | jz .found1 |
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160 | test al, al |
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161 | jnz .scan1 |
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162 | pop eax |
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71 | diamond | 163 | ; directory /xxx |
164 | .maindir: |
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709 | diamond | 165 | mov esi, [edi+4] |
166 | .maindir_noesi: |
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585 | mario79 | 167 | cmp dword [ebx], 1 |
168 | jnz .access_denied |
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169 | xor eax, eax |
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1378 | turbanoff | 170 | mov ebp, [ebx+12] ;количество блоков для считывания |
171 | mov edx, [ebx+16] ;куда записывать рузельтат |
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465 | serge | 172 | ; add edx, std_application_base_address |
585 | mario79 | 173 | push dword [ebx+4] ; first block |
174 | mov ebx, [ebx+8] ; flags |
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78 | diamond | 175 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 176 | mov edi, edx |
709 | diamond | 177 | push ecx |
585 | mario79 | 178 | mov ecx, 32/4 |
179 | rep stosd |
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709 | diamond | 180 | pop ecx |
585 | mario79 | 181 | mov byte [edx], 1 ; version |
75 | diamond | 182 | .maindir_loop: |
1379 | turbanoff | 183 | call esi |
585 | mario79 | 184 | jc .maindir_done |
185 | inc dword [edx+8] |
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186 | dec dword [esp] |
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187 | jns .maindir_loop |
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188 | dec ebp |
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189 | js .maindir_loop |
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190 | inc dword [edx+4] |
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191 | mov dword [edi], 0x10 ; attributes: folder |
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192 | mov dword [edi+4], 1 ; name type: UNICODE |
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193 | push eax |
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194 | xor eax, eax |
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195 | add edi, 8 |
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709 | diamond | 196 | push ecx |
585 | mario79 | 197 | mov ecx, 40/4-2 |
198 | rep stosd |
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709 | diamond | 199 | pop ecx |
585 | mario79 | 200 | pop eax |
201 | push eax edx |
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75 | diamond | 202 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 203 | push edi |
709 | diamond | 204 | push ecx |
585 | mario79 | 205 | push -'0' |
709 | diamond | 206 | mov ecx, 10 |
75 | diamond | 207 | @@: |
585 | mario79 | 208 | xor edx, edx |
209 | div ecx |
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210 | push edx |
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211 | test eax, eax |
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212 | jnz @b |
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75 | diamond | 213 | @@: |
585 | mario79 | 214 | pop eax |
215 | add al, '0' |
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216 | stosb |
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217 | test bl, 1 ; UNICODE name? |
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218 | jz .ansi2 |
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219 | mov byte [edi], 0 |
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220 | inc edi |
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78 | diamond | 221 | .ansi2: |
585 | mario79 | 222 | test al, al |
223 | jnz @b |
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224 | mov byte [edi-1], 0 |
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709 | diamond | 225 | pop ecx |
585 | mario79 | 226 | pop edi |
78 | diamond | 227 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 228 | add edi, 520 |
229 | test bl, 1 |
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230 | jnz @f |
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231 | sub edi, 520-264 |
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78 | diamond | 232 | @@: |
585 | mario79 | 233 | pop edx eax |
234 | jmp .maindir_loop |
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75 | diamond | 235 | .maindir_done: |
585 | mario79 | 236 | pop eax |
237 | mov ebx, [edx+4] |
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238 | xor eax, eax |
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239 | dec ebp |
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240 | js @f |
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241 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 242 | @@: |
585 | mario79 | 243 | mov [image_of_eax], eax |
244 | mov [image_of_ebx], ebx |
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245 | ret |
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71 | diamond | 246 | ; directory / |
247 | .rootdir: |
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585 | mario79 | 248 | cmp dword [ebx], 1 ; read folder? |
249 | jz .readroot |
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75 | diamond | 250 | .access_denied: |
585 | mario79 | 251 | mov dword [image_of_eax], 10 ; access denied |
252 | ret |
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71 | diamond | 253 | |
75 | diamond | 254 | .readroot: |
255 | ; virtual root folder - special handler |
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585 | mario79 | 256 | mov esi, virtual_root_query |
257 | mov ebp, [ebx+12] |
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258 | mov edx, [ebx+16] |
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465 | serge | 259 | ; add edx, std_application_base_address |
585 | mario79 | 260 | push dword [ebx+4] ; first block |
261 | mov ebx, [ebx+8] ; flags |
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262 | xor eax, eax |
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78 | diamond | 263 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 264 | mov edi, edx |
265 | mov ecx, 32/4 |
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266 | rep stosd |
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267 | mov byte [edx], 1 ; version |
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75 | diamond | 268 | .readroot_loop: |
585 | mario79 | 269 | cmp dword [esi], eax |
709 | diamond | 270 | jz .readroot_done_static |
585 | mario79 | 271 | call dword [esi] |
272 | add esi, 4 |
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273 | test eax, eax |
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274 | jnz @f |
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75 | diamond | 275 | .readroot_next: |
585 | mario79 | 276 | or ecx, -1 |
277 | xchg esi, edi |
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278 | repnz scasb |
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279 | xchg esi, edi |
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280 | jmp .readroot_loop |
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75 | diamond | 281 | @@: |
585 | mario79 | 282 | xor eax, eax |
283 | inc dword [edx+8] |
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284 | dec dword [esp] |
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285 | jns .readroot_next |
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286 | dec ebp |
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287 | js .readroot_next |
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288 | inc dword [edx+4] |
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289 | mov dword [edi], 0x10 ; attributes: folder |
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709 | diamond | 290 | mov dword [edi+4], ebx ; name type: UNICODE |
585 | mario79 | 291 | add edi, 8 |
292 | mov ecx, 40/4-2 |
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293 | rep stosd |
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294 | push edi |
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75 | diamond | 295 | @@: |
585 | mario79 | 296 | lodsb |
297 | stosb |
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298 | test bl, 1 |
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299 | jz .ansi |
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300 | mov byte [edi], 0 |
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301 | inc edi |
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78 | diamond | 302 | .ansi: |
585 | mario79 | 303 | test eax, eax |
304 | jnz @b |
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305 | pop edi |
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306 | add edi, 520 |
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307 | test bl, 1 |
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308 | jnz .readroot_loop |
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309 | sub edi, 520-264 |
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310 | jmp .readroot_loop |
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709 | diamond | 311 | .readroot_done_static: |
312 | mov esi, fs_additional_handlers-8 |
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313 | sub esp, 16 |
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314 | .readroot_ah_loop: |
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315 | add esi, 8 |
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316 | cmp dword [esi], 0 |
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317 | jz .readroot_done |
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318 | xor eax, eax |
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319 | .readroot_ah_loop2: |
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320 | push edi |
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321 | lea edi, [esp+4] |
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322 | call dword [esi+4] |
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323 | pop edi |
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324 | test eax, eax |
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325 | jz .readroot_ah_loop |
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326 | inc dword [edx+8] |
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327 | dec dword [esp+16] |
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328 | jns .readroot_ah_loop2 |
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329 | dec ebp |
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330 | js .readroot_ah_loop2 |
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331 | push eax |
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332 | xor eax, eax |
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333 | inc dword [edx+4] |
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334 | mov dword [edi], 0x10 ; attributes: folder |
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335 | mov dword [edi+4], ebx |
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336 | add edi, 8 |
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337 | mov ecx, 40/4-2 |
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338 | rep stosd |
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339 | push esi edi |
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340 | lea esi, [esp+12] |
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341 | @@: |
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342 | lodsb |
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343 | stosb |
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344 | test bl, 1 |
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345 | jz .ansi3 |
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346 | mov byte [edi], 0 |
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347 | inc edi |
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348 | .ansi3: |
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349 | test al, al |
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350 | jnz @b |
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351 | pop edi esi eax |
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352 | add edi, 520 |
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353 | test bl, 1 |
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354 | jnz .readroot_ah_loop2 |
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355 | sub edi, 520-264 |
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356 | jmp .readroot_ah_loop2 |
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75 | diamond | 357 | .readroot_done: |
709 | diamond | 358 | add esp, 16 |
585 | mario79 | 359 | pop eax |
360 | mov ebx, [edx+4] |
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361 | xor eax, eax |
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362 | dec ebp |
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363 | js @f |
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364 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 365 | @@: |
585 | mario79 | 366 | mov [image_of_eax], eax |
367 | mov [image_of_ebx], ebx |
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368 | ret |
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709 | diamond | 369 | .notfound_try: |
370 | mov edi, fs_additional_handlers |
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371 | @@: |
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372 | cmp dword [edi], 0 |
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1270 | diamond | 373 | jz .notfound |
709 | diamond | 374 | call dword [edi] |
375 | scasd |
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376 | scasd |
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377 | jmp @b |
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521 | diamond | 378 | .notfound: |
585 | mario79 | 379 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
380 | and dword [image_of_ebx], 0 |
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381 | ret |
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75 | diamond | 382 | |
709 | diamond | 383 | .notfounda: |
384 | cmp edi, esp |
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385 | jnz .notfound |
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386 | add esp, 8 |
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387 | jmp .notfound |
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388 | |||
71 | diamond | 389 | .found1: |
585 | mario79 | 390 | pop eax |
391 | cmp byte [esi], 0 |
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392 | jz .maindir |
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709 | diamond | 393 | .found2: |
71 | diamond | 394 | ; read partition number |
585 | mario79 | 395 | xor ecx, ecx |
396 | xor eax, eax |
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71 | diamond | 397 | @@: |
585 | mario79 | 398 | lodsb |
399 | cmp al, '/' |
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400 | jz .done1 |
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401 | test al, al |
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402 | jz .done1 |
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403 | sub al, '0' |
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404 | cmp al, 9 |
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709 | diamond | 405 | ja .notfounda |
585 | mario79 | 406 | lea ecx, [ecx*5] |
407 | lea ecx, [ecx*2+eax] |
||
408 | jmp @b |
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71 | diamond | 409 | .done1: |
709 | diamond | 410 | jecxz .notfounda |
585 | mario79 | 411 | test al, al |
412 | jnz @f |
||
413 | dec esi |
||
71 | diamond | 414 | @@: |
585 | mario79 | 415 | cmp byte [esi], 0 |
416 | jnz @f |
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417 | test ebp, ebp |
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418 | jz @f |
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419 | mov esi, ebp |
||
420 | xor ebp, ebp |
||
521 | diamond | 421 | @@: |
75 | diamond | 422 | ; now [edi] contains handler address, ecx - partition number, |
423 | ; esi points to ASCIIZ string - rest of name |
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585 | mario79 | 424 | jmp dword [edi] |
71 | diamond | 425 | |
426 | ; handlers for devices |
||
75 | diamond | 427 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 428 | ; in: ecx = partition number |
429 | ; esi -> relative (for device) name |
||
430 | ; ebx -> fileinfo |
||
521 | diamond | 431 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 432 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 433 | |
434 | fs_OnRamdisk: |
||
585 | mario79 | 435 | cmp ecx, 1 |
436 | jnz file_system_lfn.notfound |
||
437 | mov eax, [ebx] |
||
438 | cmp eax, fs_NumRamdiskServices |
||
439 | jae .not_impl |
||
440 | mov ecx, [ebx+12] |
||
441 | mov edx, [ebx+16] |
||
465 | serge | 442 | ; add edx, std_application_base_address |
585 | mario79 | 443 | add ebx, 4 |
444 | call dword [fs_RamdiskServices + eax*4] |
||
445 | mov [image_of_eax], eax |
||
446 | mov [image_of_ebx], ebx |
||
447 | ret |
||
71 | diamond | 448 | .not_impl: |
585 | mario79 | 449 | mov dword [image_of_eax], 2 ; not implemented |
450 | ret |
||
71 | diamond | 451 | |
86 | diamond | 452 | fs_NotImplemented: |
585 | mario79 | 453 | mov eax, 2 |
454 | ret |
||
86 | diamond | 455 | |
71 | diamond | 456 | fs_RamdiskServices: |
585 | mario79 | 457 | dd fs_RamdiskRead |
458 | dd fs_RamdiskReadFolder |
||
459 | dd fs_RamdiskRewrite |
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460 | dd fs_RamdiskWrite |
||
461 | dd fs_RamdiskSetFileEnd |
||
462 | dd fs_RamdiskGetFileInfo |
||
463 | dd fs_RamdiskSetFileInfo |
||
464 | dd 0 |
||
465 | dd fs_RamdiskDelete |
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466 | dd fs_RamdiskCreateFolder |
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83 | diamond | 467 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 468 | |
469 | fs_OnFloppy: |
||
585 | mario79 | 470 | cmp ecx, 2 |
471 | ja file_system_lfn.notfound |
||
472 | mov eax, [ebx] |
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473 | cmp eax, fs_NumFloppyServices |
||
474 | jae fs_OnRamdisk.not_impl |
||
475 | call reserve_flp |
||
476 | mov [flp_number], cl |
||
477 | mov ecx, [ebx+12] |
||
478 | mov edx, [ebx+16] |
||
465 | serge | 479 | ; add edx, std_application_base_address |
585 | mario79 | 480 | add ebx, 4 |
481 | call dword [fs_FloppyServices + eax*4] |
||
482 | and [flp_status], 0 |
||
483 | mov [image_of_eax], eax |
||
484 | mov [image_of_ebx], ebx |
||
485 | ret |
||
71 | diamond | 486 | |
487 | fs_FloppyServices: |
||
585 | mario79 | 488 | dd fs_FloppyRead |
489 | dd fs_FloppyReadFolder |
||
490 | dd fs_FloppyRewrite |
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491 | dd fs_FloppyWrite |
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492 | dd fs_FloppySetFileEnd |
||
493 | dd fs_FloppyGetFileInfo |
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494 | dd fs_FloppySetFileInfo |
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495 | dd 0 |
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496 | dd fs_FloppyDelete |
||
497 | dd fs_FloppyCreateFolder |
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83 | diamond | 498 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 499 | |
500 | fs_OnHd0: |
||
585 | mario79 | 501 | call reserve_hd1 |
502 | mov [hdbase], 0x1F0 |
||
503 | mov [hdid], 0 |
||
504 | push 1 |
||
505 | jmp fs_OnHd |
||
71 | diamond | 506 | fs_OnHd1: |
585 | mario79 | 507 | call reserve_hd1 |
508 | mov [hdbase], 0x1F0 |
||
509 | mov [hdid], 0x10 |
||
510 | push 2 |
||
511 | jmp fs_OnHd |
||
71 | diamond | 512 | fs_OnHd2: |
585 | mario79 | 513 | call reserve_hd1 |
514 | mov [hdbase], 0x170 |
||
515 | mov [hdid], 0 |
||
516 | push 3 |
||
517 | jmp fs_OnHd |
||
71 | diamond | 518 | fs_OnHd3: |
585 | mario79 | 519 | call reserve_hd1 |
520 | mov [hdbase], 0x170 |
||
521 | mov [hdid], 0x10 |
||
522 | push 4 |
||
71 | diamond | 523 | fs_OnHd: |
585 | mario79 | 524 | call reserve_hd_channel |
525 | pop eax |
||
526 | mov [hdpos], eax |
||
527 | cmp ecx, 0x100 |
||
709 | diamond | 528 | jae fs_OnHdAndBd.nf |
585 | mario79 | 529 | cmp cl, [DRIVE_DATA+1+eax] |
709 | diamond | 530 | fs_OnHdAndBd: |
585 | mario79 | 531 | jbe @f |
75 | diamond | 532 | .nf: |
585 | mario79 | 533 | call free_hd_channel |
534 | and [hd1_status], 0 |
||
535 | mov dword [image_of_eax], 5 ; not found |
||
536 | ret |
||
71 | diamond | 537 | @@: |
1378 | turbanoff | 538 | mov [known_part], ecx ; mov [fat32part], ecx |
585 | mario79 | 539 | push ebx esi |
540 | call choice_necessity_partition_1 |
||
541 | pop esi ebx |
||
542 | mov ecx, [ebx+12] |
||
543 | mov edx, [ebx+16] |
||
465 | serge | 544 | ; add edx, std_application_base_address |
585 | mario79 | 545 | mov eax, [ebx] |
546 | cmp eax, fs_NumHdServices |
||
547 | jae .not_impl |
||
548 | add ebx, 4 |
||
549 | call dword [fs_HdServices + eax*4] |
||
550 | call free_hd_channel |
||
551 | and [hd1_status], 0 |
||
552 | mov [image_of_eax], eax |
||
553 | mov [image_of_ebx], ebx |
||
554 | ret |
||
75 | diamond | 555 | .not_impl: |
585 | mario79 | 556 | call free_hd_channel |
557 | and [hd1_status], 0 |
||
558 | mov dword [image_of_eax], 2 ; not implemented |
||
559 | ret |
||
71 | diamond | 560 | |
561 | fs_HdServices: |
||
585 | mario79 | 562 | dd fs_HdRead |
563 | dd fs_HdReadFolder |
||
564 | dd fs_HdRewrite |
||
565 | dd fs_HdWrite |
||
566 | dd fs_HdSetFileEnd |
||
567 | dd fs_HdGetFileInfo |
||
568 | dd fs_HdSetFileInfo |
||
569 | dd 0 |
||
570 | dd fs_HdDelete |
||
571 | dd fs_HdCreateFolder |
||
83 | diamond | 572 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 573 | |
87 | mario79 | 574 | ;******************************************************* |
575 | fs_OnCd0: |
||
585 | mario79 | 576 | call reserve_cd |
577 | mov [ChannelNumber],1 |
||
578 | mov [DiskNumber],0 |
||
579 | push 6 |
||
580 | push 1 |
||
581 | jmp fs_OnCd |
||
87 | mario79 | 582 | fs_OnCd1: |
585 | mario79 | 583 | call reserve_cd |
584 | mov [ChannelNumber],1 |
||
585 | mov [DiskNumber],1 |
||
586 | push 4 |
||
587 | push 2 |
||
588 | jmp fs_OnCd |
||
87 | mario79 | 589 | fs_OnCd2: |
585 | mario79 | 590 | call reserve_cd |
591 | mov [ChannelNumber],2 |
||
592 | mov [DiskNumber],0 |
||
593 | push 2 |
||
594 | push 3 |
||
595 | jmp fs_OnCd |
||
87 | mario79 | 596 | fs_OnCd3: |
585 | mario79 | 597 | call reserve_cd |
598 | mov [ChannelNumber],2 |
||
599 | mov [DiskNumber],1 |
||
600 | push 0 |
||
601 | push 4 |
||
87 | mario79 | 602 | fs_OnCd: |
585 | mario79 | 603 | call reserve_cd_channel |
604 | pop eax |
||
605 | mov [cdpos], eax |
||
606 | pop eax |
||
607 | cmp ecx, 0x100 |
||
608 | jae .nf |
||
609 | push ecx ebx |
||
610 | mov cl,al |
||
611 | mov bl,[DRIVE_DATA+1] |
||
612 | shr bl,cl |
||
613 | test bl,2 |
||
614 | pop ebx ecx |
||
87 | mario79 | 615 | |
585 | mario79 | 616 | jnz @f |
87 | mario79 | 617 | .nf: |
585 | mario79 | 618 | call free_cd_channel |
619 | and [cd_status], 0 |
||
620 | mov dword [image_of_eax], 5 ; not found |
||
621 | ret |
||
87 | mario79 | 622 | @@: |
585 | mario79 | 623 | mov ecx, [ebx+12] |
624 | mov edx, [ebx+16] |
||
465 | serge | 625 | ; add edx, std_application_base_address |
585 | mario79 | 626 | mov eax, [ebx] |
627 | cmp eax,fs_NumCdServices |
||
628 | jae .not_impl |
||
629 | add ebx, 4 |
||
630 | call dword [fs_CdServices + eax*4] |
||
631 | call free_cd_channel |
||
632 | and [cd_status], 0 |
||
633 | mov [image_of_eax], eax |
||
634 | mov [image_of_ebx], ebx |
||
635 | ret |
||
87 | mario79 | 636 | .not_impl: |
585 | mario79 | 637 | call free_cd_channel |
638 | and [cd_status], 0 |
||
639 | mov dword [image_of_eax], 2 ; not implemented |
||
640 | ret |
||
87 | mario79 | 641 | |
642 | fs_CdServices: |
||
585 | mario79 | 643 | dd fs_CdRead |
644 | dd fs_CdReadFolder |
||
645 | dd fs_NotImplemented |
||
646 | dd fs_NotImplemented |
||
647 | dd fs_NotImplemented |
||
648 | dd fs_CdGetFileInfo |
||
649 | dd fs_NotImplemented |
||
650 | dd 0 |
||
651 | dd fs_NotImplemented |
||
652 | dd fs_NotImplemented |
||
90 | mario79 | 653 | fs_NumCdServices = ($ - fs_CdServices)/4 |
654 | |||
87 | mario79 | 655 | ;******************************************************* |
656 | |||
75 | diamond | 657 | fs_HasRamdisk: |
585 | mario79 | 658 | mov al, 1 ; we always have ramdisk |
659 | ret |
||
75 | diamond | 660 | |
661 | fs_HasFloppy: |
||
585 | mario79 | 662 | cmp byte [DRIVE_DATA], 0 |
663 | setnz al |
||
664 | ret |
||
75 | diamond | 665 | |
666 | fs_HasHd0: |
||
585 | mario79 | 667 | mov al, [DRIVE_DATA+1] |
668 | and al, 11000000b |
||
669 | cmp al, 01000000b |
||
670 | setz al |
||
671 | ret |
||
75 | diamond | 672 | fs_HasHd1: |
585 | mario79 | 673 | mov al, [DRIVE_DATA+1] |
674 | and al, 00110000b |
||
675 | cmp al, 00010000b |
||
676 | setz al |
||
677 | ret |
||
75 | diamond | 678 | fs_HasHd2: |
585 | mario79 | 679 | mov al, [DRIVE_DATA+1] |
680 | and al, 00001100b |
||
681 | cmp al, 00000100b |
||
682 | setz al |
||
683 | ret |
||
75 | diamond | 684 | fs_HasHd3: |
585 | mario79 | 685 | mov al, [DRIVE_DATA+1] |
686 | and al, 00000011b |
||
687 | cmp al, 00000001b |
||
688 | setz al |
||
689 | ret |
||
75 | diamond | 690 | |
87 | mario79 | 691 | ;******************************************************* |
692 | fs_HasCd0: |
||
585 | mario79 | 693 | mov al, [DRIVE_DATA+1] |
694 | and al, 11000000b |
||
695 | cmp al, 10000000b |
||
696 | setz al |
||
697 | ret |
||
87 | mario79 | 698 | fs_HasCd1: |
585 | mario79 | 699 | mov al, [DRIVE_DATA+1] |
700 | and al, 00110000b |
||
701 | cmp al, 00100000b |
||
702 | setz al |
||
703 | ret |
||
87 | mario79 | 704 | fs_HasCd2: |
585 | mario79 | 705 | mov al, [DRIVE_DATA+1] |
706 | and al, 00001100b |
||
707 | cmp al, 00001000b |
||
708 | setz al |
||
709 | ret |
||
87 | mario79 | 710 | fs_HasCd3: |
585 | mario79 | 711 | mov al, [DRIVE_DATA+1] |
712 | and al, 00000011b |
||
713 | cmp al, 00000010b |
||
714 | setz al |
||
715 | ret |
||
237 | serge | 716 | ;******************************************************* |
87 | mario79 | 717 | |
75 | diamond | 718 | ; fs_NextXXX functions: |
719 | ; in: eax = partition number, from which start to scan |
||
720 | ; out: CF=1 => no more partitions |
||
721 | ; CF=0 => eax=next partition number |
||
722 | |||
723 | fs_NextRamdisk: |
||
724 | ; we always have /rd/1 |
||
585 | mario79 | 725 | test eax, eax |
726 | stc |
||
727 | jnz @f |
||
728 | mov al, 1 |
||
729 | clc |
||
75 | diamond | 730 | @@: |
585 | mario79 | 731 | ret |
75 | diamond | 732 | |
733 | fs_NextFloppy: |
||
381 | serge | 734 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 735 | test byte [DRIVE_DATA], 0xF0 |
736 | jz .no1 |
||
737 | test eax, eax |
||
738 | jnz .no1 |
||
739 | inc eax |
||
740 | ret ; CF cleared |
||
75 | diamond | 741 | .no1: |
585 | mario79 | 742 | test byte [DRIVE_DATA], 0x0F |
743 | jz .no2 |
||
744 | cmp al, 2 |
||
745 | jae .no2 |
||
746 | mov al, 2 |
||
747 | clc |
||
748 | ret |
||
75 | diamond | 749 | .no2: |
585 | mario79 | 750 | stc |
751 | ret |
||
75 | diamond | 752 | |
753 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
754 | fs_NextHd0: |
||
585 | mario79 | 755 | push 0 |
756 | jmp fs_NextHd |
||
75 | diamond | 757 | fs_NextHd1: |
585 | mario79 | 758 | push 1 |
759 | jmp fs_NextHd |
||
75 | diamond | 760 | fs_NextHd2: |
585 | mario79 | 761 | push 2 |
762 | jmp fs_NextHd |
||
75 | diamond | 763 | fs_NextHd3: |
585 | mario79 | 764 | push 3 |
75 | diamond | 765 | fs_NextHd: |
585 | mario79 | 766 | pop ecx |
767 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
768 | cmp eax, ecx |
||
769 | jae fs_NextFloppy.no2 |
||
770 | inc eax |
||
771 | clc |
||
772 | ret |
||
237 | serge | 773 | |
87 | mario79 | 774 | ;******************************************************* |
775 | fs_NextCd: |
||
776 | ; we always have /cdX/1 |
||
585 | mario79 | 777 | test eax, eax |
778 | stc |
||
779 | jnz @f |
||
780 | mov al, 1 |
||
781 | clc |
||
87 | mario79 | 782 | @@: |
585 | mario79 | 783 | ret |
87 | mario79 | 784 | ;******************************************************* |
785 | |||
709 | diamond | 786 | ; Additional FS handlers. |
787 | ; This handler gets the control each time when fn 70 is called |
||
788 | ; with unknown item of root subdirectory. |
||
789 | ; in: esi -> name |
||
790 | ; ebp = 0 or rest of name relative to esi |
||
791 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
792 | ; but instead pop return address and return directly to the caller |
||
793 | ; otherwise simply return |
||
794 | |||
795 | ; here we test for /bd |
||
796 | biosdisk_handler: |
||
797 | cmp [NumBiosDisks], 0 |
||
798 | jz .ret |
||
799 | mov al, [esi] |
||
800 | or al, 20h |
||
801 | cmp al, 'b' |
||
802 | jnz .ret |
||
803 | mov al, [esi+1] |
||
804 | or al, 20h |
||
805 | cmp al, 'd' |
||
806 | jnz .ret |
||
807 | push esi |
||
808 | inc esi |
||
809 | inc esi |
||
810 | cmp byte [esi], '0' |
||
811 | jb .ret2 |
||
812 | cmp byte [esi], '9' |
||
813 | ja .ret2 |
||
814 | xor edx, edx |
||
815 | @@: |
||
816 | lodsb |
||
817 | test al, al |
||
818 | jz .ok |
||
819 | cmp al, '/' |
||
820 | jz .ok |
||
821 | sub al, '0' |
||
822 | cmp al, 9 |
||
823 | ja .ret2 |
||
824 | lea edx, [edx*5] |
||
825 | lea edx, [edx*2+eax] |
||
826 | jmp @b |
||
827 | .ret2: |
||
828 | pop esi |
||
829 | .ret: |
||
830 | ret |
||
831 | .ok: |
||
832 | cmp al, '/' |
||
833 | jz @f |
||
834 | dec esi |
||
835 | @@: |
||
836 | add dl, 80h |
||
837 | xor ecx, ecx |
||
838 | @@: |
||
839 | cmp dl, [BiosDisksData+ecx*4] |
||
840 | jz .ok2 |
||
841 | inc ecx |
||
842 | cmp ecx, [NumBiosDisks] |
||
843 | jb @b |
||
844 | jmp .ret2 |
||
845 | .ok2: |
||
846 | add esp, 8 |
||
847 | test al, al |
||
848 | jnz @f |
||
849 | mov esi, fs_BdNext |
||
850 | jmp file_system_lfn.maindir_noesi |
||
851 | @@: |
||
852 | push ecx |
||
853 | push fs_OnBd |
||
854 | mov edi, esp |
||
855 | jmp file_system_lfn.found2 |
||
856 | |||
857 | fs_BdNext: |
||
858 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
859 | inc eax |
||
860 | cmc |
||
861 | ret |
||
862 | |||
863 | fs_OnBd: |
||
864 | pop edx edx |
||
865 | ; edx = disk number, ecx = partition number |
||
866 | ; esi+ebp = name |
||
867 | call reserve_hd1 |
||
868 | add edx, 0x80 |
||
869 | mov [hdpos], edx |
||
870 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
871 | jmp fs_OnHdAndBd |
||
872 | |||
873 | ; This handler is called when virtual root is enumerated |
||
874 | ; and must return all items which can be handled by this. |
||
875 | ; It is called several times, first time with eax=0 |
||
876 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
877 | ; out: eax = 0 => no more items |
||
878 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
879 | |||
880 | ; here we enumerate existing BIOS disks /bd |
||
881 | biosdisk_enum_root: |
||
882 | cmp eax, [NumBiosDisks] |
||
883 | jae .end |
||
884 | push eax |
||
885 | movzx eax, byte [BiosDisksData+eax*4] |
||
886 | sub al, 80h |
||
887 | push eax |
||
888 | mov al, 'b' |
||
889 | stosb |
||
890 | mov al, 'd' |
||
891 | stosb |
||
892 | pop eax |
||
893 | cmp al, 10 |
||
894 | jae .big |
||
895 | add al, '0' |
||
896 | stosb |
||
897 | mov byte [edi], 0 |
||
898 | pop eax |
||
899 | inc eax |
||
900 | ret |
||
901 | .end: |
||
902 | xor eax, eax |
||
903 | ret |
||
904 | .big: |
||
905 | push ecx |
||
906 | push -'0' |
||
907 | mov ecx, 10 |
||
908 | @@: |
||
909 | xor edx, edx |
||
910 | div ecx |
||
911 | push edx |
||
912 | test eax, eax |
||
913 | jnz @b |
||
914 | xchg eax, edx |
||
915 | @@: |
||
916 | pop eax |
||
917 | add al, '0' |
||
918 | stosb |
||
919 | jnz @b |
||
920 | pop ecx |
||
921 | pop eax |
||
922 | inc eax |
||
923 | ret |
||
924 | |||
521 | diamond | 925 | process_replace_file_name: |
585 | mario79 | 926 | mov ebp, [full_file_name_table] |
927 | mov edi, [full_file_name_table.size] |
||
928 | dec edi |
||
929 | shl edi, 7 |
||
930 | add edi, ebp |
||
521 | diamond | 931 | .loop: |
585 | mario79 | 932 | cmp edi, ebp |
933 | jb .notfound |
||
934 | push esi edi |
||
521 | diamond | 935 | @@: |
585 | mario79 | 936 | cmp byte [edi], 0 |
937 | jz .dest_done |
||
938 | lodsb |
||
939 | test al, al |
||
940 | jz .cont |
||
941 | or al, 20h |
||
942 | scasb |
||
943 | jz @b |
||
944 | jmp .cont |
||
521 | diamond | 945 | .dest_done: |
585 | mario79 | 946 | cmp byte [esi], 0 |
947 | jz .found |
||
948 | cmp byte [esi], '/' |
||
949 | jnz .cont |
||
950 | inc esi |
||
951 | jmp .found |
||
521 | diamond | 952 | .cont: |
585 | mario79 | 953 | pop edi esi |
954 | sub edi, 128 |
||
955 | jmp .loop |
||
521 | diamond | 956 | .found: |
585 | mario79 | 957 | pop edi eax |
958 | mov ebp, esi |
||
959 | cmp byte [esi], 0 |
||
960 | lea esi, [edi+64] |
||
961 | jnz .ret |
||
521 | diamond | 962 | .notfound: |
585 | mario79 | 963 | xor ebp, ebp |
521 | diamond | 964 | .ret: |
585 | mario79 | 965 | ret |
521 | diamond | 966 | |
967 | sys_current_directory: |
||
1304 | Lrz | 968 | ; mov esi, [current_slot] |
969 | ; mov esi, [esi+APPDATA.cur_dir] |
||
970 | ; mov edx, esi |
||
971 | |||
1305 | diamond | 972 | ;get length string of appdata.cur_dir |
973 | mov eax, [current_slot] |
||
974 | mov edi, [eax+APPDATA.cur_dir] |
||
1304 | Lrz | 975 | |
976 | dec ebx |
||
585 | mario79 | 977 | jz .set |
1304 | Lrz | 978 | dec ebx |
585 | mario79 | 979 | jz .get |
980 | ret |
||
521 | diamond | 981 | .get: |
982 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
983 | ; for our code: ebx->buffer,ecx=len |
||
1304 | Lrz | 984 | max_cur_dir equ 0x1000 |
985 | |||
986 | mov ebx,edi |
||
987 | |||
988 | push ecx |
||
989 | push edi |
||
990 | |||
991 | xor eax,eax |
||
992 | mov ecx,max_cur_dir |
||
993 | |||
994 | repne scasb ;find zerro at and string |
||
1305 | diamond | 995 | jnz .error ; no zero in cur_dir: internal error, should not happen |
1304 | Lrz | 996 | |
997 | sub edi,ebx ;lenght for copy |
||
998 | inc edi |
||
999 | mov [esp+32+8],edi ;return in eax |
||
1000 | |||
1305 | diamond | 1001 | cmp edx, edi |
1002 | jbe @f |
||
1003 | mov edx, edi |
||
1004 | @@: |
||
1005 | ;source string |
||
1304 | Lrz | 1006 | pop esi |
1007 | ;destination string |
||
1008 | pop edi |
||
1305 | diamond | 1009 | cmp edx, 1 |
1010 | jbe .ret |
||
1304 | Lrz | 1011 | |
1012 | mov al,'/' ;start string with '/' |
||
585 | mario79 | 1013 | stosb |
1304 | Lrz | 1014 | mov ecx,edx |
1015 | rep movsb ;copy string |
||
1016 | .ret: ret |
||
1017 | |||
1018 | .error: add esp,8 |
||
1019 | or dword [esp+32],-1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
585 | mario79 | 1020 | ret |
521 | diamond | 1021 | .set: |
1022 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1023 | ; for our code: ebx->string to set |
||
1289 | diamond | 1024 | ; use generic resolver with APPDATA.cur_dir as destination |
1304 | Lrz | 1025 | push max_cur_dir ;0x1000 |
1026 | push edi ;destination |
||
1027 | mov ebx,ecx |
||
1289 | diamond | 1028 | call get_full_file_name |
1029 | ret |
||
1030 | |||
1031 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
1032 | ; destroys all registers except ebp,esp |
||
1033 | get_full_file_name: |
||
1034 | push ebp |
||
1035 | mov esi, [current_slot] |
||
1036 | mov esi, [esi+APPDATA.cur_dir] |
||
1037 | mov edx, esi |
||
521 | diamond | 1038 | @@: |
585 | mario79 | 1039 | inc esi |
1040 | cmp byte [esi-1], 0 |
||
1041 | jnz @b |
||
1042 | dec esi |
||
1043 | cmp byte [ebx], '/' |
||
1044 | jz .set_absolute |
||
521 | diamond | 1045 | ; string gives relative path |
1289 | diamond | 1046 | mov edi, [esp+8] ; destination |
521 | diamond | 1047 | .relative: |
585 | mario79 | 1048 | cmp byte [ebx], 0 |
1049 | jz .set_ok |
||
1050 | cmp word [ebx], '.' |
||
1051 | jz .set_ok |
||
1052 | cmp word [ebx], './' |
||
1053 | jnz @f |
||
1054 | add ebx, 2 |
||
1055 | jmp .relative |
||
521 | diamond | 1056 | @@: |
585 | mario79 | 1057 | cmp word [ebx], '..' |
1058 | jnz .doset_relative |
||
1059 | cmp byte [ebx+2], 0 |
||
1060 | jz @f |
||
1061 | cmp byte [ebx+2], '/' |
||
1062 | jnz .doset_relative |
||
521 | diamond | 1063 | @@: |
585 | mario79 | 1064 | dec esi |
1065 | cmp byte [esi], '/' |
||
1066 | jnz @b |
||
1067 | add ebx, 3 |
||
1068 | jmp .relative |
||
1289 | diamond | 1069 | .set_ok: |
1070 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
1071 | jz .set_ok.cur_dir |
||
1072 | sub esi, edx |
||
1073 | cmp esi, [esp+12] |
||
1074 | jb .set_ok.copy |
||
1075 | .fail: |
||
1076 | mov byte [edi], 0 |
||
1077 | xor eax, eax ; fail |
||
1078 | pop ebp |
||
1079 | ret 8 |
||
1080 | .set_ok.copy: |
||
1081 | mov ecx, esi |
||
1082 | mov esi, edx |
||
1083 | rep movsb |
||
1084 | mov byte [edi], 0 |
||
1085 | .ret.ok: |
||
1086 | mov al, 1 ; ok |
||
1087 | pop ebp |
||
1088 | ret 8 |
||
1089 | .set_ok.cur_dir: |
||
1090 | mov byte [esi], 0 |
||
1091 | jmp .ret.ok |
||
521 | diamond | 1092 | .doset_relative: |
1289 | diamond | 1093 | cmp edx, edi |
1094 | jz .doset_relative.cur_dir |
||
1095 | sub esi, edx |
||
1096 | cmp esi, [esp+12] |
||
1097 | jae .fail |
||
1098 | mov ecx, esi |
||
1099 | mov esi, edx |
||
1100 | mov edx, edi |
||
1101 | rep movsb |
||
1102 | jmp .doset_relative.copy |
||
1103 | .doset_relative.cur_dir: |
||
1104 | mov edi, esi |
||
1105 | .doset_relative.copy: |
||
1106 | add edx, [esp+12] |
||
1107 | mov byte [edi], '/' |
||
1108 | inc edi |
||
1109 | cmp edi, edx |
||
1110 | jae .overflow |
||
521 | diamond | 1111 | @@: |
585 | mario79 | 1112 | mov al, [ebx] |
1113 | inc ebx |
||
1289 | diamond | 1114 | stosb |
585 | mario79 | 1115 | test al, al |
1289 | diamond | 1116 | jz .ret.ok |
1117 | cmp edi, edx |
||
585 | mario79 | 1118 | jb @b |
1289 | diamond | 1119 | .overflow: |
1120 | dec edi |
||
1121 | jmp .fail |
||
521 | diamond | 1122 | .set_absolute: |
585 | mario79 | 1123 | lea esi, [ebx+1] |
1124 | call process_replace_file_name |
||
1289 | diamond | 1125 | mov edi, [esp+8] |
1126 | mov edx, [esp+12] |
||
1127 | add edx, edi |
||
521 | diamond | 1128 | .set_copy: |
585 | mario79 | 1129 | lodsb |
1130 | stosb |
||
1131 | test al, al |
||
1132 | jz .set_part2 |
||
521 | diamond | 1133 | .set_copy_cont: |
585 | mario79 | 1134 | cmp edi, edx |
1135 | jb .set_copy |
||
1289 | diamond | 1136 | jmp .overflow |
521 | diamond | 1137 | .set_part2: |
585 | mario79 | 1138 | mov esi, ebp |
1139 | xor ebp, ebp |
||
1140 | test esi, esi |
||
1289 | diamond | 1141 | jz .ret.ok |
585 | mario79 | 1142 | mov byte [edi-1], '/' |
1379 | turbanoff | 1143 | jmp .set_copy_cont |