Rev 897 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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709 | diamond | 3 | ;; Copyright (C) KolibriOS team 2004-2008. 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: 914 $ |
9 | |||
10 | |||
521 | diamond | 11 | image_of_eax EQU esp+36 |
12 | image_of_ebx EQU esp+24 |
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488 | spraid | 13 | |
72 | diamond | 14 | ; System function 70 - files with long names (LFN) |
71 | diamond | 15 | ; diamond, 2006 |
16 | |||
17 | iglobal |
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18 | ; in this table names must be in lowercase |
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19 | rootdirs: |
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585 | mario79 | 20 | db 2,'rd' |
21 | dd fs_OnRamdisk |
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22 | dd fs_NextRamdisk |
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23 | db 7,'ramdisk' |
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24 | dd fs_OnRamdisk |
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25 | dd fs_NextRamdisk |
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26 | db 2,'fd' |
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27 | dd fs_OnFloppy |
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28 | dd fs_NextFloppy |
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29 | db 10,'floppydisk' |
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30 | dd fs_OnFloppy |
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31 | dd fs_NextFloppy |
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32 | db 3,'hd0' |
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33 | dd fs_OnHd0 |
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34 | dd fs_NextHd0 |
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35 | db 3,'hd1' |
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36 | dd fs_OnHd1 |
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37 | dd fs_NextHd1 |
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38 | db 3,'hd2' |
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39 | dd fs_OnHd2 |
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40 | dd fs_NextHd2 |
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41 | db 3,'hd3' |
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42 | dd fs_OnHd3 |
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43 | dd fs_NextHd3 |
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87 | mario79 | 44 | ;********************************************** |
585 | mario79 | 45 | db 3,'cd0' |
46 | dd fs_OnCd0 |
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47 | dd fs_NextCd |
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48 | db 3,'cd1' |
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49 | dd fs_OnCd1 |
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50 | dd fs_NextCd |
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51 | db 3,'cd2' |
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52 | dd fs_OnCd2 |
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53 | dd fs_NextCd |
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54 | db 3,'cd3' |
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55 | dd fs_OnCd3 |
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56 | dd fs_NextCd |
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237 | serge | 57 | ;*********************************************** |
585 | mario79 | 58 | db 0 |
75 | diamond | 59 | |
87 | mario79 | 60 | |
75 | diamond | 61 | virtual_root_query: |
585 | mario79 | 62 | dd fs_HasRamdisk |
63 | db 'rd',0 |
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64 | dd fs_HasFloppy |
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65 | db 'fd',0 |
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66 | dd fs_HasHd0 |
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67 | db 'hd0',0 |
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68 | dd fs_HasHd1 |
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69 | db 'hd1',0 |
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70 | dd fs_HasHd2 |
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71 | db 'hd2',0 |
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72 | dd fs_HasHd3 |
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73 | db 'hd3',0 |
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87 | mario79 | 74 | ;********************************************** |
585 | mario79 | 75 | dd fs_HasCd0 |
76 | db 'cd0',0 |
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77 | dd fs_HasCd1 |
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78 | db 'cd1',0 |
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79 | dd fs_HasCd2 |
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80 | db 'cd2',0 |
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81 | dd fs_HasCd3 |
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82 | db 'cd3',0 |
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87 | mario79 | 83 | ;********************************************** |
585 | mario79 | 84 | dd 0 |
709 | diamond | 85 | |
86 | fs_additional_handlers: |
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87 | dd biosdisk_handler, biosdisk_enum_root |
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88 | ; add new handlers here |
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89 | dd 0 |
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90 | |||
71 | diamond | 91 | endg |
92 | |||
93 | file_system_lfn: |
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94 | ; in: eax->fileinfo block |
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95 | ; operation codes: |
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72 | diamond | 96 | ; 0 : read file |
75 | diamond | 97 | ; 1 : read folder |
83 | diamond | 98 | ; 2 : create/rewrite file |
133 | diamond | 99 | ; 3 : write/append to file |
100 | ; 4 : set end of file |
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86 | diamond | 101 | ; 5 : get file/directory attributes structure |
102 | ; 6 : set file/directory attributes structure |
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91 | diamond | 103 | ; 7 : start application |
171 | diamond | 104 | ; 8 : delete file |
321 | diamond | 105 | ; 9 : create directory |
71 | diamond | 106 | |
897 | serge | 107 | cmp dword [eax], 7 |
108 | je .do_exec |
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109 | |||
71 | diamond | 110 | ; parse file name |
585 | mario79 | 111 | xchg ebx, eax |
112 | lea esi, [ebx+20] |
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113 | lodsb |
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114 | test al, al |
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115 | jnz @f |
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116 | mov esi, [esi] |
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117 | lodsb |
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84 | diamond | 118 | @@: |
585 | mario79 | 119 | cmp al, '/' |
120 | jz .notcurdir |
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121 | dec esi |
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122 | mov ebp, esi |
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123 | test al, al |
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124 | jnz @f |
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125 | xor ebp, ebp |
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521 | diamond | 126 | @@: |
585 | mario79 | 127 | mov esi, [current_slot] |
128 | mov esi, [esi+APPDATA.cur_dir] |
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129 | jmp .parse_normal |
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521 | diamond | 130 | .notcurdir: |
585 | mario79 | 131 | cmp byte [esi], 0 |
132 | jz .rootdir |
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133 | call process_replace_file_name |
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521 | diamond | 134 | .parse_normal: |
585 | mario79 | 135 | mov edi, rootdirs-8 |
136 | xor ecx, ecx |
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137 | push esi |
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71 | diamond | 138 | .scan1: |
585 | mario79 | 139 | pop esi |
140 | add edi, ecx |
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141 | scasd |
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142 | scasd |
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143 | mov cl, byte [edi] |
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144 | test cl, cl |
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709 | diamond | 145 | jz .notfound_try |
585 | mario79 | 146 | inc edi |
147 | push esi |
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71 | diamond | 148 | @@: |
585 | mario79 | 149 | lodsb |
150 | or al, 20h |
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151 | scasb |
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152 | loopz @b |
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153 | jnz .scan1 |
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154 | lodsb |
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155 | cmp al, '/' |
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156 | jz .found1 |
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157 | test al, al |
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158 | jnz .scan1 |
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159 | pop eax |
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71 | diamond | 160 | ; directory /xxx |
161 | .maindir: |
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709 | diamond | 162 | mov esi, [edi+4] |
163 | .maindir_noesi: |
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585 | mario79 | 164 | cmp dword [ebx], 1 |
165 | jnz .access_denied |
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166 | xor eax, eax |
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167 | mov ebp, [ebx+12] |
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168 | mov edx, [ebx+16] |
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465 | serge | 169 | ; add edx, std_application_base_address |
585 | mario79 | 170 | push dword [ebx+4] ; first block |
171 | mov ebx, [ebx+8] ; flags |
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78 | diamond | 172 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 173 | mov edi, edx |
709 | diamond | 174 | push ecx |
585 | mario79 | 175 | mov ecx, 32/4 |
176 | rep stosd |
||
709 | diamond | 177 | pop ecx |
585 | mario79 | 178 | mov byte [edx], 1 ; version |
75 | diamond | 179 | .maindir_loop: |
585 | mario79 | 180 | call esi |
181 | jc .maindir_done |
||
182 | inc dword [edx+8] |
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183 | dec dword [esp] |
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184 | jns .maindir_loop |
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185 | dec ebp |
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186 | js .maindir_loop |
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187 | inc dword [edx+4] |
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188 | mov dword [edi], 0x10 ; attributes: folder |
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189 | mov dword [edi+4], 1 ; name type: UNICODE |
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190 | push eax |
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191 | xor eax, eax |
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192 | add edi, 8 |
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709 | diamond | 193 | push ecx |
585 | mario79 | 194 | mov ecx, 40/4-2 |
195 | rep stosd |
||
709 | diamond | 196 | pop ecx |
585 | mario79 | 197 | pop eax |
198 | push eax edx |
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75 | diamond | 199 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 200 | push edi |
709 | diamond | 201 | push ecx |
585 | mario79 | 202 | push -'0' |
709 | diamond | 203 | mov ecx, 10 |
75 | diamond | 204 | @@: |
585 | mario79 | 205 | xor edx, edx |
206 | div ecx |
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207 | push edx |
||
208 | test eax, eax |
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209 | jnz @b |
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75 | diamond | 210 | @@: |
585 | mario79 | 211 | pop eax |
212 | add al, '0' |
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213 | stosb |
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214 | test bl, 1 ; UNICODE name? |
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215 | jz .ansi2 |
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216 | mov byte [edi], 0 |
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217 | inc edi |
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78 | diamond | 218 | .ansi2: |
585 | mario79 | 219 | test al, al |
220 | jnz @b |
||
221 | mov byte [edi-1], 0 |
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709 | diamond | 222 | pop ecx |
585 | mario79 | 223 | pop edi |
78 | diamond | 224 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 225 | add edi, 520 |
226 | test bl, 1 |
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227 | jnz @f |
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228 | sub edi, 520-264 |
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78 | diamond | 229 | @@: |
585 | mario79 | 230 | pop edx eax |
231 | jmp .maindir_loop |
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75 | diamond | 232 | .maindir_done: |
585 | mario79 | 233 | pop eax |
234 | mov ebx, [edx+4] |
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235 | xor eax, eax |
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236 | dec ebp |
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237 | js @f |
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238 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 239 | @@: |
585 | mario79 | 240 | mov [image_of_eax], eax |
241 | mov [image_of_ebx], ebx |
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242 | ret |
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71 | diamond | 243 | ; directory / |
244 | .rootdir: |
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585 | mario79 | 245 | cmp dword [ebx], 1 ; read folder? |
246 | jz .readroot |
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75 | diamond | 247 | .access_denied: |
585 | mario79 | 248 | mov dword [image_of_eax], 10 ; access denied |
249 | ret |
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71 | diamond | 250 | |
75 | diamond | 251 | .readroot: |
252 | ; virtual root folder - special handler |
||
585 | mario79 | 253 | mov esi, virtual_root_query |
254 | mov ebp, [ebx+12] |
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255 | mov edx, [ebx+16] |
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465 | serge | 256 | ; add edx, std_application_base_address |
585 | mario79 | 257 | push dword [ebx+4] ; first block |
258 | mov ebx, [ebx+8] ; flags |
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259 | xor eax, eax |
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78 | diamond | 260 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 261 | mov edi, edx |
262 | mov ecx, 32/4 |
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263 | rep stosd |
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264 | mov byte [edx], 1 ; version |
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75 | diamond | 265 | .readroot_loop: |
585 | mario79 | 266 | cmp dword [esi], eax |
709 | diamond | 267 | jz .readroot_done_static |
585 | mario79 | 268 | call dword [esi] |
269 | add esi, 4 |
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270 | test eax, eax |
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271 | jnz @f |
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75 | diamond | 272 | .readroot_next: |
585 | mario79 | 273 | or ecx, -1 |
274 | xchg esi, edi |
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275 | repnz scasb |
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276 | xchg esi, edi |
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277 | jmp .readroot_loop |
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75 | diamond | 278 | @@: |
585 | mario79 | 279 | xor eax, eax |
280 | inc dword [edx+8] |
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281 | dec dword [esp] |
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282 | jns .readroot_next |
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283 | dec ebp |
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284 | js .readroot_next |
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285 | inc dword [edx+4] |
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286 | mov dword [edi], 0x10 ; attributes: folder |
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709 | diamond | 287 | mov dword [edi+4], ebx ; name type: UNICODE |
585 | mario79 | 288 | add edi, 8 |
289 | mov ecx, 40/4-2 |
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290 | rep stosd |
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291 | push edi |
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75 | diamond | 292 | @@: |
585 | mario79 | 293 | lodsb |
294 | stosb |
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295 | test bl, 1 |
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296 | jz .ansi |
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297 | mov byte [edi], 0 |
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298 | inc edi |
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78 | diamond | 299 | .ansi: |
585 | mario79 | 300 | test eax, eax |
301 | jnz @b |
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302 | pop edi |
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303 | add edi, 520 |
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304 | test bl, 1 |
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305 | jnz .readroot_loop |
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306 | sub edi, 520-264 |
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307 | jmp .readroot_loop |
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709 | diamond | 308 | .readroot_done_static: |
309 | mov esi, fs_additional_handlers-8 |
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310 | sub esp, 16 |
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311 | .readroot_ah_loop: |
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312 | add esi, 8 |
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313 | cmp dword [esi], 0 |
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314 | jz .readroot_done |
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315 | xor eax, eax |
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316 | .readroot_ah_loop2: |
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317 | push edi |
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318 | lea edi, [esp+4] |
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319 | call dword [esi+4] |
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320 | pop edi |
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321 | test eax, eax |
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322 | jz .readroot_ah_loop |
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323 | inc dword [edx+8] |
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324 | dec dword [esp+16] |
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325 | jns .readroot_ah_loop2 |
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326 | dec ebp |
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327 | js .readroot_ah_loop2 |
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328 | push eax |
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329 | xor eax, eax |
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330 | inc dword [edx+4] |
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331 | mov dword [edi], 0x10 ; attributes: folder |
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332 | mov dword [edi+4], ebx |
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333 | add edi, 8 |
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334 | mov ecx, 40/4-2 |
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335 | rep stosd |
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336 | push esi edi |
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337 | lea esi, [esp+12] |
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338 | @@: |
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339 | lodsb |
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340 | stosb |
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341 | test bl, 1 |
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342 | jz .ansi3 |
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343 | mov byte [edi], 0 |
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344 | inc edi |
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345 | .ansi3: |
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346 | test al, al |
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347 | jnz @b |
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348 | pop edi esi eax |
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349 | add edi, 520 |
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350 | test bl, 1 |
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351 | jnz .readroot_ah_loop2 |
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352 | sub edi, 520-264 |
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353 | jmp .readroot_ah_loop2 |
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75 | diamond | 354 | .readroot_done: |
709 | diamond | 355 | add esp, 16 |
585 | mario79 | 356 | pop eax |
357 | mov ebx, [edx+4] |
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358 | xor eax, eax |
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359 | dec ebp |
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360 | js @f |
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361 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 362 | @@: |
585 | mario79 | 363 | mov [image_of_eax], eax |
364 | mov [image_of_ebx], ebx |
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365 | ret |
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709 | diamond | 366 | .notfound_try: |
367 | mov edi, fs_additional_handlers |
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368 | @@: |
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369 | cmp dword [edi], 0 |
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370 | jz @f |
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371 | call dword [edi] |
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372 | scasd |
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373 | scasd |
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374 | jmp @b |
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521 | diamond | 375 | .notfound: |
585 | mario79 | 376 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
377 | and dword [image_of_ebx], 0 |
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378 | ret |
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75 | diamond | 379 | |
709 | diamond | 380 | .notfounda: |
381 | cmp edi, esp |
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382 | jnz .notfound |
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383 | add esp, 8 |
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384 | jmp .notfound |
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385 | |||
71 | diamond | 386 | .found1: |
585 | mario79 | 387 | pop eax |
388 | cmp byte [esi], 0 |
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389 | jz .maindir |
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709 | diamond | 390 | .found2: |
71 | diamond | 391 | ; read partition number |
585 | mario79 | 392 | xor ecx, ecx |
393 | xor eax, eax |
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71 | diamond | 394 | @@: |
585 | mario79 | 395 | lodsb |
396 | cmp al, '/' |
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397 | jz .done1 |
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398 | test al, al |
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399 | jz .done1 |
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400 | sub al, '0' |
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401 | cmp al, 9 |
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709 | diamond | 402 | ja .notfounda |
585 | mario79 | 403 | lea ecx, [ecx*5] |
404 | lea ecx, [ecx*2+eax] |
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405 | jmp @b |
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71 | diamond | 406 | .done1: |
709 | diamond | 407 | jecxz .notfounda |
585 | mario79 | 408 | test al, al |
409 | jnz @f |
||
410 | dec esi |
||
71 | diamond | 411 | @@: |
585 | mario79 | 412 | cmp byte [esi], 0 |
413 | jnz @f |
||
414 | test ebp, ebp |
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415 | jz @f |
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416 | mov esi, ebp |
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417 | xor ebp, ebp |
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521 | diamond | 418 | @@: |
75 | diamond | 419 | ; now [edi] contains handler address, ecx - partition number, |
420 | ; esi points to ASCIIZ string - rest of name |
||
585 | mario79 | 421 | jmp dword [edi] |
71 | diamond | 422 | |
897 | serge | 423 | .do_exec: |
424 | lea ebx, [eax+20] |
||
425 | cmp byte [ebx],0 |
||
426 | jnz @F |
||
427 | |||
428 | mov ebx, [ebx+1] |
||
429 | @@: |
||
430 | push dword [eax+4] |
||
431 | push dword [eax+8] |
||
432 | push ebx |
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433 | |||
434 | call _sys_exec |
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914 | serge | 435 | add esp, 12 |
897 | serge | 436 | mov [image_of_eax], eax |
437 | ret |
||
438 | |||
914 | serge | 439 | |
440 | |||
71 | diamond | 441 | ; handlers for devices |
75 | diamond | 442 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 443 | ; in: ecx = partition number |
444 | ; esi -> relative (for device) name |
||
445 | ; ebx -> fileinfo |
||
521 | diamond | 446 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 447 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 448 | |
449 | fs_OnRamdisk: |
||
585 | mario79 | 450 | cmp ecx, 1 |
451 | jnz file_system_lfn.notfound |
||
452 | mov eax, [ebx] |
||
453 | cmp eax, fs_NumRamdiskServices |
||
454 | jae .not_impl |
||
455 | mov ecx, [ebx+12] |
||
456 | mov edx, [ebx+16] |
||
465 | serge | 457 | ; add edx, std_application_base_address |
585 | mario79 | 458 | add ebx, 4 |
459 | call dword [fs_RamdiskServices + eax*4] |
||
460 | mov [image_of_eax], eax |
||
461 | mov [image_of_ebx], ebx |
||
462 | ret |
||
71 | diamond | 463 | .not_impl: |
585 | mario79 | 464 | mov dword [image_of_eax], 2 ; not implemented |
465 | ret |
||
71 | diamond | 466 | |
86 | diamond | 467 | fs_NotImplemented: |
585 | mario79 | 468 | mov eax, 2 |
469 | ret |
||
86 | diamond | 470 | |
71 | diamond | 471 | fs_RamdiskServices: |
585 | mario79 | 472 | dd fs_RamdiskRead |
473 | dd fs_RamdiskReadFolder |
||
474 | dd fs_RamdiskRewrite |
||
475 | dd fs_RamdiskWrite |
||
476 | dd fs_RamdiskSetFileEnd |
||
477 | dd fs_RamdiskGetFileInfo |
||
478 | dd fs_RamdiskSetFileInfo |
||
479 | dd 0 |
||
480 | dd fs_RamdiskDelete |
||
481 | dd fs_RamdiskCreateFolder |
||
83 | diamond | 482 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 483 | |
484 | fs_OnFloppy: |
||
585 | mario79 | 485 | cmp ecx, 2 |
486 | ja file_system_lfn.notfound |
||
487 | mov eax, [ebx] |
||
488 | cmp eax, fs_NumFloppyServices |
||
489 | jae fs_OnRamdisk.not_impl |
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490 | call reserve_flp |
||
491 | mov [flp_number], cl |
||
492 | mov ecx, [ebx+12] |
||
493 | mov edx, [ebx+16] |
||
465 | serge | 494 | ; add edx, std_application_base_address |
585 | mario79 | 495 | add ebx, 4 |
496 | call dword [fs_FloppyServices + eax*4] |
||
497 | and [flp_status], 0 |
||
498 | mov [image_of_eax], eax |
||
499 | mov [image_of_ebx], ebx |
||
500 | ret |
||
71 | diamond | 501 | |
502 | fs_FloppyServices: |
||
585 | mario79 | 503 | dd fs_FloppyRead |
504 | dd fs_FloppyReadFolder |
||
505 | dd fs_FloppyRewrite |
||
506 | dd fs_FloppyWrite |
||
507 | dd fs_FloppySetFileEnd |
||
508 | dd fs_FloppyGetFileInfo |
||
509 | dd fs_FloppySetFileInfo |
||
510 | dd 0 |
||
511 | dd fs_FloppyDelete |
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512 | dd fs_FloppyCreateFolder |
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83 | diamond | 513 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 514 | |
515 | fs_OnHd0: |
||
585 | mario79 | 516 | call reserve_hd1 |
517 | mov [hdbase], 0x1F0 |
||
518 | mov [hdid], 0 |
||
519 | push 1 |
||
520 | jmp fs_OnHd |
||
71 | diamond | 521 | fs_OnHd1: |
585 | mario79 | 522 | call reserve_hd1 |
523 | mov [hdbase], 0x1F0 |
||
524 | mov [hdid], 0x10 |
||
525 | push 2 |
||
526 | jmp fs_OnHd |
||
71 | diamond | 527 | fs_OnHd2: |
585 | mario79 | 528 | call reserve_hd1 |
529 | mov [hdbase], 0x170 |
||
530 | mov [hdid], 0 |
||
531 | push 3 |
||
532 | jmp fs_OnHd |
||
71 | diamond | 533 | fs_OnHd3: |
585 | mario79 | 534 | call reserve_hd1 |
535 | mov [hdbase], 0x170 |
||
536 | mov [hdid], 0x10 |
||
537 | push 4 |
||
71 | diamond | 538 | fs_OnHd: |
585 | mario79 | 539 | call reserve_hd_channel |
540 | pop eax |
||
541 | mov [hdpos], eax |
||
542 | cmp ecx, 0x100 |
||
709 | diamond | 543 | jae fs_OnHdAndBd.nf |
585 | mario79 | 544 | cmp cl, [DRIVE_DATA+1+eax] |
709 | diamond | 545 | fs_OnHdAndBd: |
585 | mario79 | 546 | jbe @f |
75 | diamond | 547 | .nf: |
585 | mario79 | 548 | call free_hd_channel |
549 | and [hd1_status], 0 |
||
550 | mov dword [image_of_eax], 5 ; not found |
||
551 | ret |
||
71 | diamond | 552 | @@: |
585 | mario79 | 553 | mov [fat32part], ecx |
554 | push ebx esi |
||
555 | call choice_necessity_partition_1 |
||
556 | pop esi ebx |
||
557 | mov ecx, [ebx+12] |
||
558 | mov edx, [ebx+16] |
||
465 | serge | 559 | ; add edx, std_application_base_address |
585 | mario79 | 560 | mov eax, [ebx] |
561 | cmp eax, fs_NumHdServices |
||
562 | jae .not_impl |
||
563 | add ebx, 4 |
||
564 | call dword [fs_HdServices + eax*4] |
||
565 | call free_hd_channel |
||
566 | and [hd1_status], 0 |
||
567 | mov [image_of_eax], eax |
||
568 | mov [image_of_ebx], ebx |
||
569 | ret |
||
75 | diamond | 570 | .not_impl: |
585 | mario79 | 571 | call free_hd_channel |
572 | and [hd1_status], 0 |
||
573 | mov dword [image_of_eax], 2 ; not implemented |
||
574 | ret |
||
71 | diamond | 575 | |
576 | fs_HdServices: |
||
585 | mario79 | 577 | dd fs_HdRead |
578 | dd fs_HdReadFolder |
||
579 | dd fs_HdRewrite |
||
580 | dd fs_HdWrite |
||
581 | dd fs_HdSetFileEnd |
||
582 | dd fs_HdGetFileInfo |
||
583 | dd fs_HdSetFileInfo |
||
584 | dd 0 |
||
585 | dd fs_HdDelete |
||
586 | dd fs_HdCreateFolder |
||
83 | diamond | 587 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 588 | |
87 | mario79 | 589 | ;******************************************************* |
590 | fs_OnCd0: |
||
585 | mario79 | 591 | call reserve_cd |
592 | mov [ChannelNumber],1 |
||
593 | mov [DiskNumber],0 |
||
594 | push 6 |
||
595 | push 1 |
||
596 | jmp fs_OnCd |
||
87 | mario79 | 597 | fs_OnCd1: |
585 | mario79 | 598 | call reserve_cd |
599 | mov [ChannelNumber],1 |
||
600 | mov [DiskNumber],1 |
||
601 | push 4 |
||
602 | push 2 |
||
603 | jmp fs_OnCd |
||
87 | mario79 | 604 | fs_OnCd2: |
585 | mario79 | 605 | call reserve_cd |
606 | mov [ChannelNumber],2 |
||
607 | mov [DiskNumber],0 |
||
608 | push 2 |
||
609 | push 3 |
||
610 | jmp fs_OnCd |
||
87 | mario79 | 611 | fs_OnCd3: |
585 | mario79 | 612 | call reserve_cd |
613 | mov [ChannelNumber],2 |
||
614 | mov [DiskNumber],1 |
||
615 | push 0 |
||
616 | push 4 |
||
87 | mario79 | 617 | fs_OnCd: |
585 | mario79 | 618 | call reserve_cd_channel |
619 | pop eax |
||
620 | mov [cdpos], eax |
||
621 | pop eax |
||
622 | cmp ecx, 0x100 |
||
623 | jae .nf |
||
624 | push ecx ebx |
||
625 | mov cl,al |
||
626 | mov bl,[DRIVE_DATA+1] |
||
627 | shr bl,cl |
||
628 | test bl,2 |
||
629 | pop ebx ecx |
||
87 | mario79 | 630 | |
585 | mario79 | 631 | jnz @f |
87 | mario79 | 632 | .nf: |
585 | mario79 | 633 | call free_cd_channel |
634 | and [cd_status], 0 |
||
635 | mov dword [image_of_eax], 5 ; not found |
||
636 | ret |
||
87 | mario79 | 637 | @@: |
585 | mario79 | 638 | mov ecx, [ebx+12] |
639 | mov edx, [ebx+16] |
||
465 | serge | 640 | ; add edx, std_application_base_address |
585 | mario79 | 641 | mov eax, [ebx] |
642 | cmp eax,fs_NumCdServices |
||
643 | jae .not_impl |
||
644 | add ebx, 4 |
||
645 | call dword [fs_CdServices + eax*4] |
||
646 | call free_cd_channel |
||
647 | and [cd_status], 0 |
||
648 | mov [image_of_eax], eax |
||
649 | mov [image_of_ebx], ebx |
||
650 | ret |
||
87 | mario79 | 651 | .not_impl: |
585 | mario79 | 652 | call free_cd_channel |
653 | and [cd_status], 0 |
||
654 | mov dword [image_of_eax], 2 ; not implemented |
||
655 | ret |
||
87 | mario79 | 656 | |
657 | fs_CdServices: |
||
585 | mario79 | 658 | dd fs_CdRead |
659 | dd fs_CdReadFolder |
||
660 | dd fs_NotImplemented |
||
661 | dd fs_NotImplemented |
||
662 | dd fs_NotImplemented |
||
663 | dd fs_CdGetFileInfo |
||
664 | dd fs_NotImplemented |
||
665 | dd 0 |
||
666 | dd fs_NotImplemented |
||
667 | dd fs_NotImplemented |
||
90 | mario79 | 668 | fs_NumCdServices = ($ - fs_CdServices)/4 |
669 | |||
87 | mario79 | 670 | ;******************************************************* |
671 | |||
75 | diamond | 672 | fs_HasRamdisk: |
585 | mario79 | 673 | mov al, 1 ; we always have ramdisk |
674 | ret |
||
75 | diamond | 675 | |
676 | fs_HasFloppy: |
||
585 | mario79 | 677 | cmp byte [DRIVE_DATA], 0 |
678 | setnz al |
||
679 | ret |
||
75 | diamond | 680 | |
681 | fs_HasHd0: |
||
585 | mario79 | 682 | mov al, [DRIVE_DATA+1] |
683 | and al, 11000000b |
||
684 | cmp al, 01000000b |
||
685 | setz al |
||
686 | ret |
||
75 | diamond | 687 | fs_HasHd1: |
585 | mario79 | 688 | mov al, [DRIVE_DATA+1] |
689 | and al, 00110000b |
||
690 | cmp al, 00010000b |
||
691 | setz al |
||
692 | ret |
||
75 | diamond | 693 | fs_HasHd2: |
585 | mario79 | 694 | mov al, [DRIVE_DATA+1] |
695 | and al, 00001100b |
||
696 | cmp al, 00000100b |
||
697 | setz al |
||
698 | ret |
||
75 | diamond | 699 | fs_HasHd3: |
585 | mario79 | 700 | mov al, [DRIVE_DATA+1] |
701 | and al, 00000011b |
||
702 | cmp al, 00000001b |
||
703 | setz al |
||
704 | ret |
||
75 | diamond | 705 | |
87 | mario79 | 706 | ;******************************************************* |
707 | fs_HasCd0: |
||
585 | mario79 | 708 | mov al, [DRIVE_DATA+1] |
709 | and al, 11000000b |
||
710 | cmp al, 10000000b |
||
711 | setz al |
||
712 | ret |
||
87 | mario79 | 713 | fs_HasCd1: |
585 | mario79 | 714 | mov al, [DRIVE_DATA+1] |
715 | and al, 00110000b |
||
716 | cmp al, 00100000b |
||
717 | setz al |
||
718 | ret |
||
87 | mario79 | 719 | fs_HasCd2: |
585 | mario79 | 720 | mov al, [DRIVE_DATA+1] |
721 | and al, 00001100b |
||
722 | cmp al, 00001000b |
||
723 | setz al |
||
724 | ret |
||
87 | mario79 | 725 | fs_HasCd3: |
585 | mario79 | 726 | mov al, [DRIVE_DATA+1] |
727 | and al, 00000011b |
||
728 | cmp al, 00000010b |
||
729 | setz al |
||
730 | ret |
||
237 | serge | 731 | ;******************************************************* |
87 | mario79 | 732 | |
75 | diamond | 733 | ; fs_NextXXX functions: |
734 | ; in: eax = partition number, from which start to scan |
||
735 | ; out: CF=1 => no more partitions |
||
736 | ; CF=0 => eax=next partition number |
||
737 | |||
738 | fs_NextRamdisk: |
||
739 | ; we always have /rd/1 |
||
585 | mario79 | 740 | test eax, eax |
741 | stc |
||
742 | jnz @f |
||
743 | mov al, 1 |
||
744 | clc |
||
75 | diamond | 745 | @@: |
585 | mario79 | 746 | ret |
75 | diamond | 747 | |
748 | fs_NextFloppy: |
||
381 | serge | 749 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 750 | test byte [DRIVE_DATA], 0xF0 |
751 | jz .no1 |
||
752 | test eax, eax |
||
753 | jnz .no1 |
||
754 | inc eax |
||
755 | ret ; CF cleared |
||
75 | diamond | 756 | .no1: |
585 | mario79 | 757 | test byte [DRIVE_DATA], 0x0F |
758 | jz .no2 |
||
759 | cmp al, 2 |
||
760 | jae .no2 |
||
761 | mov al, 2 |
||
762 | clc |
||
763 | ret |
||
75 | diamond | 764 | .no2: |
585 | mario79 | 765 | stc |
766 | ret |
||
75 | diamond | 767 | |
768 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
769 | fs_NextHd0: |
||
585 | mario79 | 770 | push 0 |
771 | jmp fs_NextHd |
||
75 | diamond | 772 | fs_NextHd1: |
585 | mario79 | 773 | push 1 |
774 | jmp fs_NextHd |
||
75 | diamond | 775 | fs_NextHd2: |
585 | mario79 | 776 | push 2 |
777 | jmp fs_NextHd |
||
75 | diamond | 778 | fs_NextHd3: |
585 | mario79 | 779 | push 3 |
75 | diamond | 780 | fs_NextHd: |
585 | mario79 | 781 | pop ecx |
782 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
783 | cmp eax, ecx |
||
784 | jae fs_NextFloppy.no2 |
||
785 | inc eax |
||
786 | clc |
||
787 | ret |
||
237 | serge | 788 | |
87 | mario79 | 789 | ;******************************************************* |
790 | fs_NextCd: |
||
791 | ; we always have /cdX/1 |
||
585 | mario79 | 792 | test eax, eax |
793 | stc |
||
794 | jnz @f |
||
795 | mov al, 1 |
||
796 | clc |
||
87 | mario79 | 797 | @@: |
585 | mario79 | 798 | ret |
87 | mario79 | 799 | ;******************************************************* |
800 | |||
709 | diamond | 801 | ; Additional FS handlers. |
802 | ; This handler gets the control each time when fn 70 is called |
||
803 | ; with unknown item of root subdirectory. |
||
804 | ; in: esi -> name |
||
805 | ; ebp = 0 or rest of name relative to esi |
||
806 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
807 | ; but instead pop return address and return directly to the caller |
||
808 | ; otherwise simply return |
||
809 | |||
810 | ; here we test for /bd |
||
811 | biosdisk_handler: |
||
812 | cmp [NumBiosDisks], 0 |
||
813 | jz .ret |
||
814 | mov al, [esi] |
||
815 | or al, 20h |
||
816 | cmp al, 'b' |
||
817 | jnz .ret |
||
818 | mov al, [esi+1] |
||
819 | or al, 20h |
||
820 | cmp al, 'd' |
||
821 | jnz .ret |
||
822 | push esi |
||
823 | inc esi |
||
824 | inc esi |
||
825 | cmp byte [esi], '0' |
||
826 | jb .ret2 |
||
827 | cmp byte [esi], '9' |
||
828 | ja .ret2 |
||
829 | xor edx, edx |
||
830 | @@: |
||
831 | lodsb |
||
832 | test al, al |
||
833 | jz .ok |
||
834 | cmp al, '/' |
||
835 | jz .ok |
||
836 | sub al, '0' |
||
837 | cmp al, 9 |
||
838 | ja .ret2 |
||
839 | lea edx, [edx*5] |
||
840 | lea edx, [edx*2+eax] |
||
841 | jmp @b |
||
842 | .ret2: |
||
843 | pop esi |
||
844 | .ret: |
||
845 | ret |
||
846 | .ok: |
||
847 | cmp al, '/' |
||
848 | jz @f |
||
849 | dec esi |
||
850 | @@: |
||
851 | add dl, 80h |
||
852 | xor ecx, ecx |
||
853 | @@: |
||
854 | cmp dl, [BiosDisksData+ecx*4] |
||
855 | jz .ok2 |
||
856 | inc ecx |
||
857 | cmp ecx, [NumBiosDisks] |
||
858 | jb @b |
||
859 | jmp .ret2 |
||
860 | .ok2: |
||
861 | add esp, 8 |
||
862 | test al, al |
||
863 | jnz @f |
||
864 | mov esi, fs_BdNext |
||
865 | jmp file_system_lfn.maindir_noesi |
||
866 | @@: |
||
867 | push ecx |
||
868 | push fs_OnBd |
||
869 | mov edi, esp |
||
870 | jmp file_system_lfn.found2 |
||
871 | |||
872 | fs_BdNext: |
||
873 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
874 | inc eax |
||
875 | cmc |
||
876 | ret |
||
877 | |||
878 | fs_OnBd: |
||
879 | pop edx edx |
||
880 | ; edx = disk number, ecx = partition number |
||
881 | ; esi+ebp = name |
||
882 | call reserve_hd1 |
||
883 | add edx, 0x80 |
||
884 | mov [hdpos], edx |
||
885 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
886 | jmp fs_OnHdAndBd |
||
887 | |||
888 | ; This handler is called when virtual root is enumerated |
||
889 | ; and must return all items which can be handled by this. |
||
890 | ; It is called several times, first time with eax=0 |
||
891 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
892 | ; out: eax = 0 => no more items |
||
893 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
894 | |||
895 | ; here we enumerate existing BIOS disks /bd |
||
896 | biosdisk_enum_root: |
||
897 | cmp eax, [NumBiosDisks] |
||
898 | jae .end |
||
899 | push eax |
||
900 | movzx eax, byte [BiosDisksData+eax*4] |
||
901 | sub al, 80h |
||
902 | push eax |
||
903 | mov al, 'b' |
||
904 | stosb |
||
905 | mov al, 'd' |
||
906 | stosb |
||
907 | pop eax |
||
908 | cmp al, 10 |
||
909 | jae .big |
||
910 | add al, '0' |
||
911 | stosb |
||
912 | mov byte [edi], 0 |
||
913 | pop eax |
||
914 | inc eax |
||
915 | ret |
||
916 | .end: |
||
917 | xor eax, eax |
||
918 | ret |
||
919 | .big: |
||
920 | push ecx |
||
921 | push -'0' |
||
922 | mov ecx, 10 |
||
923 | @@: |
||
924 | xor edx, edx |
||
925 | div ecx |
||
926 | push edx |
||
927 | test eax, eax |
||
928 | jnz @b |
||
929 | xchg eax, edx |
||
930 | @@: |
||
931 | pop eax |
||
932 | add al, '0' |
||
933 | stosb |
||
934 | jnz @b |
||
935 | pop ecx |
||
936 | pop eax |
||
937 | inc eax |
||
938 | ret |
||
939 | |||
521 | diamond | 940 | process_replace_file_name: |
585 | mario79 | 941 | mov ebp, [full_file_name_table] |
942 | mov edi, [full_file_name_table.size] |
||
943 | dec edi |
||
944 | shl edi, 7 |
||
945 | add edi, ebp |
||
521 | diamond | 946 | .loop: |
585 | mario79 | 947 | cmp edi, ebp |
948 | jb .notfound |
||
949 | push esi edi |
||
521 | diamond | 950 | @@: |
585 | mario79 | 951 | cmp byte [edi], 0 |
952 | jz .dest_done |
||
953 | lodsb |
||
954 | test al, al |
||
955 | jz .cont |
||
956 | or al, 20h |
||
957 | scasb |
||
958 | jz @b |
||
959 | jmp .cont |
||
521 | diamond | 960 | .dest_done: |
585 | mario79 | 961 | cmp byte [esi], 0 |
962 | jz .found |
||
963 | cmp byte [esi], '/' |
||
964 | jnz .cont |
||
965 | inc esi |
||
966 | jmp .found |
||
521 | diamond | 967 | .cont: |
585 | mario79 | 968 | pop edi esi |
969 | sub edi, 128 |
||
970 | jmp .loop |
||
521 | diamond | 971 | .found: |
585 | mario79 | 972 | pop edi eax |
973 | mov ebp, esi |
||
974 | cmp byte [esi], 0 |
||
975 | lea esi, [edi+64] |
||
976 | jnz .ret |
||
521 | diamond | 977 | .notfound: |
585 | mario79 | 978 | xor ebp, ebp |
521 | diamond | 979 | .ret: |
585 | mario79 | 980 | ret |
521 | diamond | 981 | |
982 | sys_current_directory: |
||
585 | mario79 | 983 | mov esi, [current_slot] |
984 | mov esi, [esi+APPDATA.cur_dir] |
||
985 | mov edx, esi |
||
986 | dec eax |
||
987 | jz .set |
||
988 | dec eax |
||
989 | jz .get |
||
990 | ret |
||
521 | diamond | 991 | .get: |
992 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
993 | ; for our code: ebx->buffer,ecx=len |
||
994 | @@: |
||
585 | mario79 | 995 | lodsb |
996 | test al, al |
||
997 | jnz @b |
||
998 | sub esi, edx |
||
999 | inc esi |
||
1000 | mov [esp+36], esi |
||
1001 | cmp ecx, esi |
||
1002 | jbe @f |
||
1003 | mov ecx, esi |
||
521 | diamond | 1004 | @@: |
585 | mario79 | 1005 | cmp ecx, 1 |
1006 | jbe .ret |
||
1007 | mov esi, edx |
||
1008 | mov edi, ebx |
||
1009 | mov al, '/' |
||
1010 | stosb |
||
1011 | dec ecx |
||
1012 | dec ecx |
||
1013 | rep movsb |
||
1014 | mov byte [edi], 0 |
||
521 | diamond | 1015 | .ret: |
585 | mario79 | 1016 | ret |
521 | diamond | 1017 | .set: |
1018 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1019 | ; for our code: ebx->string to set |
||
1020 | @@: |
||
585 | mario79 | 1021 | inc esi |
1022 | cmp byte [esi-1], 0 |
||
1023 | jnz @b |
||
1024 | dec esi |
||
1025 | cmp byte [ebx], '/' |
||
1026 | jz .set_absolute |
||
521 | diamond | 1027 | ; string gives relative path |
1028 | .relative: |
||
585 | mario79 | 1029 | cmp byte [ebx], 0 |
1030 | jz .set_ok |
||
1031 | cmp word [ebx], '.' |
||
1032 | jz .set_ok |
||
1033 | cmp word [ebx], './' |
||
1034 | jnz @f |
||
1035 | add ebx, 2 |
||
1036 | jmp .relative |
||
521 | diamond | 1037 | @@: |
585 | mario79 | 1038 | cmp word [ebx], '..' |
1039 | jnz .doset_relative |
||
1040 | cmp byte [ebx+2], 0 |
||
1041 | jz @f |
||
1042 | cmp byte [ebx+2], '/' |
||
1043 | jnz .doset_relative |
||
521 | diamond | 1044 | @@: |
585 | mario79 | 1045 | dec esi |
1046 | cmp byte [esi], '/' |
||
1047 | jnz @b |
||
1048 | mov byte [esi], 0 |
||
1049 | add ebx, 3 |
||
1050 | jmp .relative |
||
521 | diamond | 1051 | .doset_relative: |
585 | mario79 | 1052 | add edx, 0x1000 |
1053 | mov byte [esi], '/' |
||
1054 | inc esi |
||
1055 | cmp esi, edx |
||
1056 | jae .overflow_esi |
||
521 | diamond | 1057 | @@: |
585 | mario79 | 1058 | mov al, [ebx] |
1059 | inc ebx |
||
1060 | mov [esi], al |
||
1061 | inc esi |
||
1062 | test al, al |
||
1063 | jz .set_ok |
||
1064 | cmp esi, edx |
||
1065 | jb @b |
||
521 | diamond | 1066 | .overflow_esi: |
585 | mario79 | 1067 | mov byte [esi-1], 0 ; force null-terminated string |
521 | diamond | 1068 | .set_ok: |
585 | mario79 | 1069 | ret |
521 | diamond | 1070 | .set_absolute: |
585 | mario79 | 1071 | lea esi, [ebx+1] |
1072 | call process_replace_file_name |
||
1073 | mov edi, edx |
||
1074 | add edx, 0x1000 |
||
521 | diamond | 1075 | .set_copy: |
585 | mario79 | 1076 | lodsb |
1077 | stosb |
||
1078 | test al, al |
||
1079 | jz .set_part2 |
||
521 | diamond | 1080 | .set_copy_cont: |
585 | mario79 | 1081 | cmp edi, edx |
1082 | jb .set_copy |
||
521 | diamond | 1083 | .overflow_edi: |
585 | mario79 | 1084 | mov byte [edi-1], 0 |
1085 | ret |
||
521 | diamond | 1086 | .set_part2: |
585 | mario79 | 1087 | mov esi, ebp |
1088 | xor ebp, ebp |
||
1089 | test esi, esi |
||
1090 | jz .set_ok |
||
1091 | mov byte [edi-1], '/' |
||
1092 | jmp .set_copy_cont |