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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
593 | mikedld | 8 | $Revision: 593 $ |
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 |
71 | diamond | 85 | endg |
86 | |||
87 | file_system_lfn: |
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88 | ; in: eax->fileinfo block |
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89 | ; operation codes: |
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72 | diamond | 90 | ; 0 : read file |
75 | diamond | 91 | ; 1 : read folder |
83 | diamond | 92 | ; 2 : create/rewrite file |
133 | diamond | 93 | ; 3 : write/append to file |
94 | ; 4 : set end of file |
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86 | diamond | 95 | ; 5 : get file/directory attributes structure |
96 | ; 6 : set file/directory attributes structure |
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91 | diamond | 97 | ; 7 : start application |
171 | diamond | 98 | ; 8 : delete file |
321 | diamond | 99 | ; 9 : create directory |
71 | diamond | 100 | |
101 | ; parse file name |
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585 | mario79 | 102 | xchg ebx, eax |
103 | lea esi, [ebx+20] |
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104 | lodsb |
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105 | test al, al |
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106 | jnz @f |
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107 | mov esi, [esi] |
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108 | lodsb |
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84 | diamond | 109 | @@: |
585 | mario79 | 110 | cmp al, '/' |
111 | jz .notcurdir |
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112 | dec esi |
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113 | mov ebp, esi |
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114 | test al, al |
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115 | jnz @f |
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116 | xor ebp, ebp |
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521 | diamond | 117 | @@: |
585 | mario79 | 118 | mov esi, [current_slot] |
119 | mov esi, [esi+APPDATA.cur_dir] |
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120 | jmp .parse_normal |
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521 | diamond | 121 | .notcurdir: |
585 | mario79 | 122 | cmp byte [esi], 0 |
123 | jz .rootdir |
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124 | call process_replace_file_name |
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521 | diamond | 125 | .parse_normal: |
585 | mario79 | 126 | cmp dword [ebx], 7 |
127 | jne @F |
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128 | mov edx, [ebx+4] |
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129 | mov ebx, [ebx+8] |
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130 | call fs_execute ; esi+ebp, ebx, edx |
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131 | mov [image_of_eax], eax |
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132 | ret |
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237 | serge | 133 | @@: |
585 | mario79 | 134 | mov edi, rootdirs-8 |
135 | xor ecx, ecx |
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136 | push esi |
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71 | diamond | 137 | .scan1: |
585 | mario79 | 138 | pop esi |
139 | add edi, ecx |
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140 | scasd |
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141 | scasd |
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142 | mov cl, byte [edi] |
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143 | test cl, cl |
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144 | jz .notfound |
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145 | inc edi |
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146 | push esi |
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71 | diamond | 147 | @@: |
585 | mario79 | 148 | lodsb |
149 | or al, 20h |
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150 | scasb |
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151 | loopz @b |
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152 | jnz .scan1 |
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153 | lodsb |
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154 | cmp al, '/' |
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155 | jz .found1 |
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156 | test al, al |
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157 | jnz .scan1 |
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158 | pop eax |
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71 | diamond | 159 | ; directory /xxx |
160 | .maindir: |
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585 | mario79 | 161 | cmp dword [ebx], 1 |
162 | jnz .access_denied |
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163 | xor eax, eax |
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164 | mov ebp, [ebx+12] |
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165 | mov edx, [ebx+16] |
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465 | serge | 166 | ; add edx, std_application_base_address |
585 | mario79 | 167 | push dword [ebx+4] ; first block |
168 | mov ebx, [ebx+8] ; flags |
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169 | mov esi, [edi+4] |
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78 | diamond | 170 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
585 | mario79 | 171 | mov edi, edx |
172 | mov ecx, 32/4 |
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173 | rep stosd |
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174 | mov byte [edx], 1 ; version |
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75 | diamond | 175 | .maindir_loop: |
585 | mario79 | 176 | call esi |
177 | jc .maindir_done |
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178 | inc dword [edx+8] |
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179 | dec dword [esp] |
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180 | jns .maindir_loop |
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181 | dec ebp |
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182 | js .maindir_loop |
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183 | inc dword [edx+4] |
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184 | mov dword [edi], 0x10 ; attributes: folder |
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185 | mov dword [edi+4], 1 ; name type: UNICODE |
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186 | push eax |
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187 | xor eax, eax |
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188 | add edi, 8 |
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189 | mov ecx, 40/4-2 |
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190 | rep stosd |
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191 | pop eax |
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192 | push eax edx |
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75 | diamond | 193 | ; convert number in eax to decimal UNICODE string |
585 | mario79 | 194 | push edi |
195 | push -'0' |
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196 | mov cl, 10 |
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75 | diamond | 197 | @@: |
585 | mario79 | 198 | xor edx, edx |
199 | div ecx |
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200 | push edx |
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201 | test eax, eax |
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202 | jnz @b |
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75 | diamond | 203 | @@: |
585 | mario79 | 204 | pop eax |
205 | add al, '0' |
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206 | stosb |
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207 | test bl, 1 ; UNICODE name? |
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208 | jz .ansi2 |
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209 | mov byte [edi], 0 |
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210 | inc edi |
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78 | diamond | 211 | .ansi2: |
585 | mario79 | 212 | test al, al |
213 | jnz @b |
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214 | mov byte [edi-1], 0 |
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215 | pop edi |
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78 | diamond | 216 | ; UNICODE name length is 520 bytes, ANSI - 264 |
585 | mario79 | 217 | add edi, 520 |
218 | test bl, 1 |
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219 | jnz @f |
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220 | sub edi, 520-264 |
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78 | diamond | 221 | @@: |
585 | mario79 | 222 | pop edx eax |
223 | jmp .maindir_loop |
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75 | diamond | 224 | .maindir_done: |
585 | mario79 | 225 | pop eax |
226 | mov ebx, [edx+4] |
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227 | xor eax, eax |
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228 | dec ebp |
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229 | js @f |
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230 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 231 | @@: |
585 | mario79 | 232 | mov [image_of_eax], eax |
233 | mov [image_of_ebx], ebx |
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234 | ret |
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71 | diamond | 235 | ; directory / |
236 | .rootdir: |
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585 | mario79 | 237 | cmp dword [ebx], 1 ; read folder? |
238 | jz .readroot |
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75 | diamond | 239 | .access_denied: |
585 | mario79 | 240 | mov dword [image_of_eax], 10 ; access denied |
241 | ret |
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71 | diamond | 242 | |
75 | diamond | 243 | .readroot: |
244 | ; virtual root folder - special handler |
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585 | mario79 | 245 | mov esi, virtual_root_query |
246 | mov ebp, [ebx+12] |
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247 | mov edx, [ebx+16] |
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465 | serge | 248 | ; add edx, std_application_base_address |
585 | mario79 | 249 | push dword [ebx+4] ; first block |
250 | mov ebx, [ebx+8] ; flags |
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251 | xor eax, eax |
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78 | diamond | 252 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
585 | mario79 | 253 | mov edi, edx |
254 | mov ecx, 32/4 |
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255 | rep stosd |
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256 | mov byte [edx], 1 ; version |
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75 | diamond | 257 | .readroot_loop: |
585 | mario79 | 258 | cmp dword [esi], eax |
259 | jz .readroot_done |
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260 | call dword [esi] |
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261 | add esi, 4 |
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262 | test eax, eax |
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263 | jnz @f |
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75 | diamond | 264 | .readroot_next: |
585 | mario79 | 265 | or ecx, -1 |
266 | xchg esi, edi |
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267 | repnz scasb |
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268 | xchg esi, edi |
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269 | jmp .readroot_loop |
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75 | diamond | 270 | @@: |
585 | mario79 | 271 | xor eax, eax |
272 | inc dword [edx+8] |
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273 | dec dword [esp] |
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274 | jns .readroot_next |
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275 | dec ebp |
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276 | js .readroot_next |
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277 | inc dword [edx+4] |
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278 | mov dword [edi], 0x10 ; attributes: folder |
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279 | mov dword [edi+4], 1 ; name type: UNICODE |
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280 | add edi, 8 |
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281 | mov ecx, 40/4-2 |
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282 | rep stosd |
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283 | push edi |
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75 | diamond | 284 | @@: |
585 | mario79 | 285 | lodsb |
286 | stosb |
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287 | test bl, 1 |
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288 | jz .ansi |
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289 | mov byte [edi], 0 |
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290 | inc edi |
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78 | diamond | 291 | .ansi: |
585 | mario79 | 292 | test eax, eax |
293 | jnz @b |
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294 | pop edi |
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295 | add edi, 520 |
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296 | test bl, 1 |
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297 | jnz .readroot_loop |
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298 | sub edi, 520-264 |
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299 | jmp .readroot_loop |
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75 | diamond | 300 | .readroot_done: |
585 | mario79 | 301 | pop eax |
302 | mov ebx, [edx+4] |
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303 | xor eax, eax |
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304 | dec ebp |
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305 | js @f |
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306 | mov al, ERROR_END_OF_FILE |
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75 | diamond | 307 | @@: |
585 | mario79 | 308 | mov [image_of_eax], eax |
309 | mov [image_of_ebx], ebx |
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310 | ret |
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521 | diamond | 311 | .notfound: |
585 | mario79 | 312 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
313 | and dword [image_of_ebx], 0 |
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314 | ret |
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75 | diamond | 315 | |
71 | diamond | 316 | .found1: |
585 | mario79 | 317 | pop eax |
318 | cmp byte [esi], 0 |
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319 | jz .maindir |
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71 | diamond | 320 | ; read partition number |
585 | mario79 | 321 | xor ecx, ecx |
322 | xor eax, eax |
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71 | diamond | 323 | @@: |
585 | mario79 | 324 | lodsb |
325 | cmp al, '/' |
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326 | jz .done1 |
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327 | test al, al |
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328 | jz .done1 |
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329 | sub al, '0' |
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330 | cmp al, 9 |
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331 | ja .notfound |
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332 | lea ecx, [ecx*5] |
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333 | lea ecx, [ecx*2+eax] |
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334 | jmp @b |
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71 | diamond | 335 | .done1: |
585 | mario79 | 336 | jecxz .notfound |
337 | test al, al |
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338 | jnz @f |
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339 | dec esi |
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71 | diamond | 340 | @@: |
585 | mario79 | 341 | cmp byte [esi], 0 |
342 | jnz @f |
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343 | test ebp, ebp |
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344 | jz @f |
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345 | mov esi, ebp |
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346 | xor ebp, ebp |
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521 | diamond | 347 | @@: |
75 | diamond | 348 | ; now [edi] contains handler address, ecx - partition number, |
349 | ; esi points to ASCIIZ string - rest of name |
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585 | mario79 | 350 | jmp dword [edi] |
71 | diamond | 351 | |
352 | ; handlers for devices |
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75 | diamond | 353 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 354 | ; in: ecx = partition number |
355 | ; esi -> relative (for device) name |
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356 | ; ebx -> fileinfo |
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521 | diamond | 357 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
488 | spraid | 358 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 359 | |
360 | fs_OnRamdisk: |
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585 | mario79 | 361 | cmp ecx, 1 |
362 | jnz file_system_lfn.notfound |
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363 | mov eax, [ebx] |
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364 | cmp eax, fs_NumRamdiskServices |
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365 | jae .not_impl |
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366 | mov ecx, [ebx+12] |
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367 | mov edx, [ebx+16] |
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465 | serge | 368 | ; add edx, std_application_base_address |
585 | mario79 | 369 | add ebx, 4 |
370 | call dword [fs_RamdiskServices + eax*4] |
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371 | mov [image_of_eax], eax |
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372 | mov [image_of_ebx], ebx |
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373 | ret |
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71 | diamond | 374 | .not_impl: |
585 | mario79 | 375 | mov dword [image_of_eax], 2 ; not implemented |
376 | ret |
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71 | diamond | 377 | |
86 | diamond | 378 | fs_NotImplemented: |
585 | mario79 | 379 | mov eax, 2 |
380 | ret |
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86 | diamond | 381 | |
71 | diamond | 382 | fs_RamdiskServices: |
585 | mario79 | 383 | dd fs_RamdiskRead |
384 | dd fs_RamdiskReadFolder |
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385 | dd fs_RamdiskRewrite |
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386 | dd fs_RamdiskWrite |
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387 | dd fs_RamdiskSetFileEnd |
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388 | dd fs_RamdiskGetFileInfo |
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389 | dd fs_RamdiskSetFileInfo |
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390 | dd 0 |
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391 | dd fs_RamdiskDelete |
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392 | dd fs_RamdiskCreateFolder |
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83 | diamond | 393 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 394 | |
395 | fs_OnFloppy: |
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585 | mario79 | 396 | cmp ecx, 2 |
397 | ja file_system_lfn.notfound |
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398 | mov eax, [ebx] |
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399 | cmp eax, fs_NumFloppyServices |
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400 | jae fs_OnRamdisk.not_impl |
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401 | call reserve_flp |
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402 | mov [flp_number], cl |
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403 | mov ecx, [ebx+12] |
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404 | mov edx, [ebx+16] |
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465 | serge | 405 | ; add edx, std_application_base_address |
585 | mario79 | 406 | add ebx, 4 |
407 | call dword [fs_FloppyServices + eax*4] |
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408 | and [flp_status], 0 |
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409 | mov [image_of_eax], eax |
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410 | mov [image_of_ebx], ebx |
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411 | ret |
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71 | diamond | 412 | |
413 | fs_FloppyServices: |
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585 | mario79 | 414 | dd fs_FloppyRead |
415 | dd fs_FloppyReadFolder |
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416 | dd fs_FloppyRewrite |
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417 | dd fs_FloppyWrite |
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418 | dd fs_FloppySetFileEnd |
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419 | dd fs_FloppyGetFileInfo |
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420 | dd fs_FloppySetFileInfo |
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421 | dd 0 |
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422 | dd fs_FloppyDelete |
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423 | dd fs_FloppyCreateFolder |
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83 | diamond | 424 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 425 | |
426 | fs_OnHd0: |
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585 | mario79 | 427 | call reserve_hd1 |
428 | mov [hdbase], 0x1F0 |
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429 | mov [hdid], 0 |
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430 | push 1 |
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431 | jmp fs_OnHd |
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71 | diamond | 432 | fs_OnHd1: |
585 | mario79 | 433 | call reserve_hd1 |
434 | mov [hdbase], 0x1F0 |
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435 | mov [hdid], 0x10 |
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436 | push 2 |
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437 | jmp fs_OnHd |
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71 | diamond | 438 | fs_OnHd2: |
585 | mario79 | 439 | call reserve_hd1 |
440 | mov [hdbase], 0x170 |
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441 | mov [hdid], 0 |
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442 | push 3 |
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443 | jmp fs_OnHd |
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71 | diamond | 444 | fs_OnHd3: |
585 | mario79 | 445 | call reserve_hd1 |
446 | mov [hdbase], 0x170 |
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447 | mov [hdid], 0x10 |
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448 | push 4 |
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71 | diamond | 449 | fs_OnHd: |
585 | mario79 | 450 | call reserve_hd_channel |
451 | pop eax |
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452 | mov [hdpos], eax |
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453 | cmp ecx, 0x100 |
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454 | jae .nf |
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455 | cmp cl, [DRIVE_DATA+1+eax] |
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456 | jbe @f |
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75 | diamond | 457 | .nf: |
585 | mario79 | 458 | call free_hd_channel |
459 | and [hd1_status], 0 |
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460 | mov dword [image_of_eax], 5 ; not found |
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461 | ret |
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71 | diamond | 462 | @@: |
585 | mario79 | 463 | mov [fat32part], ecx |
464 | push ebx esi |
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465 | call choice_necessity_partition_1 |
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466 | pop esi ebx |
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467 | mov ecx, [ebx+12] |
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468 | mov edx, [ebx+16] |
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465 | serge | 469 | ; add edx, std_application_base_address |
585 | mario79 | 470 | mov eax, [ebx] |
471 | cmp eax, fs_NumHdServices |
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472 | jae .not_impl |
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473 | add ebx, 4 |
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474 | call dword [fs_HdServices + eax*4] |
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475 | call free_hd_channel |
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476 | and [hd1_status], 0 |
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477 | mov [image_of_eax], eax |
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478 | mov [image_of_ebx], ebx |
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479 | ret |
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75 | diamond | 480 | .not_impl: |
585 | mario79 | 481 | call free_hd_channel |
482 | and [hd1_status], 0 |
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483 | mov dword [image_of_eax], 2 ; not implemented |
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484 | ret |
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71 | diamond | 485 | |
486 | fs_HdServices: |
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585 | mario79 | 487 | dd fs_HdRead |
488 | dd fs_HdReadFolder |
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489 | dd fs_HdRewrite |
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490 | dd fs_HdWrite |
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491 | dd fs_HdSetFileEnd |
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492 | dd fs_HdGetFileInfo |
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493 | dd fs_HdSetFileInfo |
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494 | dd 0 |
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495 | dd fs_HdDelete |
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496 | dd fs_HdCreateFolder |
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83 | diamond | 497 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 498 | |
87 | mario79 | 499 | ;******************************************************* |
500 | fs_OnCd0: |
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585 | mario79 | 501 | call reserve_cd |
502 | mov [ChannelNumber],1 |
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503 | mov [DiskNumber],0 |
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504 | push 6 |
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505 | push 1 |
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506 | jmp fs_OnCd |
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87 | mario79 | 507 | fs_OnCd1: |
585 | mario79 | 508 | call reserve_cd |
509 | mov [ChannelNumber],1 |
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510 | mov [DiskNumber],1 |
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511 | push 4 |
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512 | push 2 |
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513 | jmp fs_OnCd |
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87 | mario79 | 514 | fs_OnCd2: |
585 | mario79 | 515 | call reserve_cd |
516 | mov [ChannelNumber],2 |
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517 | mov [DiskNumber],0 |
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518 | push 2 |
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519 | push 3 |
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520 | jmp fs_OnCd |
||
87 | mario79 | 521 | fs_OnCd3: |
585 | mario79 | 522 | call reserve_cd |
523 | mov [ChannelNumber],2 |
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524 | mov [DiskNumber],1 |
||
525 | push 0 |
||
526 | push 4 |
||
87 | mario79 | 527 | fs_OnCd: |
585 | mario79 | 528 | call reserve_cd_channel |
529 | pop eax |
||
530 | mov [cdpos], eax |
||
531 | pop eax |
||
532 | cmp ecx, 0x100 |
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533 | jae .nf |
||
534 | push ecx ebx |
||
535 | mov cl,al |
||
536 | mov bl,[DRIVE_DATA+1] |
||
537 | shr bl,cl |
||
538 | test bl,2 |
||
539 | pop ebx ecx |
||
87 | mario79 | 540 | |
585 | mario79 | 541 | jnz @f |
87 | mario79 | 542 | .nf: |
585 | mario79 | 543 | call free_cd_channel |
544 | and [cd_status], 0 |
||
545 | mov dword [image_of_eax], 5 ; not found |
||
546 | ret |
||
87 | mario79 | 547 | @@: |
585 | mario79 | 548 | mov ecx, [ebx+12] |
549 | mov edx, [ebx+16] |
||
465 | serge | 550 | ; add edx, std_application_base_address |
585 | mario79 | 551 | mov eax, [ebx] |
552 | cmp eax,fs_NumCdServices |
||
553 | jae .not_impl |
||
554 | add ebx, 4 |
||
555 | call dword [fs_CdServices + eax*4] |
||
556 | call free_cd_channel |
||
557 | and [cd_status], 0 |
||
558 | mov [image_of_eax], eax |
||
559 | mov [image_of_ebx], ebx |
||
560 | ret |
||
87 | mario79 | 561 | .not_impl: |
585 | mario79 | 562 | call free_cd_channel |
563 | and [cd_status], 0 |
||
564 | mov dword [image_of_eax], 2 ; not implemented |
||
565 | ret |
||
87 | mario79 | 566 | |
567 | fs_CdServices: |
||
585 | mario79 | 568 | dd fs_CdRead |
569 | dd fs_CdReadFolder |
||
570 | dd fs_NotImplemented |
||
571 | dd fs_NotImplemented |
||
572 | dd fs_NotImplemented |
||
573 | dd fs_CdGetFileInfo |
||
574 | dd fs_NotImplemented |
||
575 | dd 0 |
||
576 | dd fs_NotImplemented |
||
577 | dd fs_NotImplemented |
||
90 | mario79 | 578 | fs_NumCdServices = ($ - fs_CdServices)/4 |
579 | |||
87 | mario79 | 580 | ;******************************************************* |
581 | |||
75 | diamond | 582 | fs_HasRamdisk: |
585 | mario79 | 583 | mov al, 1 ; we always have ramdisk |
584 | ret |
||
75 | diamond | 585 | |
586 | fs_HasFloppy: |
||
585 | mario79 | 587 | cmp byte [DRIVE_DATA], 0 |
588 | setnz al |
||
589 | ret |
||
75 | diamond | 590 | |
591 | fs_HasHd0: |
||
585 | mario79 | 592 | mov al, [DRIVE_DATA+1] |
593 | and al, 11000000b |
||
594 | cmp al, 01000000b |
||
595 | setz al |
||
596 | ret |
||
75 | diamond | 597 | fs_HasHd1: |
585 | mario79 | 598 | mov al, [DRIVE_DATA+1] |
599 | and al, 00110000b |
||
600 | cmp al, 00010000b |
||
601 | setz al |
||
602 | ret |
||
75 | diamond | 603 | fs_HasHd2: |
585 | mario79 | 604 | mov al, [DRIVE_DATA+1] |
605 | and al, 00001100b |
||
606 | cmp al, 00000100b |
||
607 | setz al |
||
608 | ret |
||
75 | diamond | 609 | fs_HasHd3: |
585 | mario79 | 610 | mov al, [DRIVE_DATA+1] |
611 | and al, 00000011b |
||
612 | cmp al, 00000001b |
||
613 | setz al |
||
614 | ret |
||
75 | diamond | 615 | |
87 | mario79 | 616 | ;******************************************************* |
617 | fs_HasCd0: |
||
585 | mario79 | 618 | mov al, [DRIVE_DATA+1] |
619 | and al, 11000000b |
||
620 | cmp al, 10000000b |
||
621 | setz al |
||
622 | ret |
||
87 | mario79 | 623 | fs_HasCd1: |
585 | mario79 | 624 | mov al, [DRIVE_DATA+1] |
625 | and al, 00110000b |
||
626 | cmp al, 00100000b |
||
627 | setz al |
||
628 | ret |
||
87 | mario79 | 629 | fs_HasCd2: |
585 | mario79 | 630 | mov al, [DRIVE_DATA+1] |
631 | and al, 00001100b |
||
632 | cmp al, 00001000b |
||
633 | setz al |
||
634 | ret |
||
87 | mario79 | 635 | fs_HasCd3: |
585 | mario79 | 636 | mov al, [DRIVE_DATA+1] |
637 | and al, 00000011b |
||
638 | cmp al, 00000010b |
||
639 | setz al |
||
640 | ret |
||
237 | serge | 641 | ;******************************************************* |
87 | mario79 | 642 | |
75 | diamond | 643 | ; fs_NextXXX functions: |
644 | ; in: eax = partition number, from which start to scan |
||
645 | ; out: CF=1 => no more partitions |
||
646 | ; CF=0 => eax=next partition number |
||
647 | |||
648 | fs_NextRamdisk: |
||
649 | ; we always have /rd/1 |
||
585 | mario79 | 650 | test eax, eax |
651 | stc |
||
652 | jnz @f |
||
653 | mov al, 1 |
||
654 | clc |
||
75 | diamond | 655 | @@: |
585 | mario79 | 656 | ret |
75 | diamond | 657 | |
658 | fs_NextFloppy: |
||
381 | serge | 659 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
585 | mario79 | 660 | test byte [DRIVE_DATA], 0xF0 |
661 | jz .no1 |
||
662 | test eax, eax |
||
663 | jnz .no1 |
||
664 | inc eax |
||
665 | ret ; CF cleared |
||
75 | diamond | 666 | .no1: |
585 | mario79 | 667 | test byte [DRIVE_DATA], 0x0F |
668 | jz .no2 |
||
669 | cmp al, 2 |
||
670 | jae .no2 |
||
671 | mov al, 2 |
||
672 | clc |
||
673 | ret |
||
75 | diamond | 674 | .no2: |
585 | mario79 | 675 | stc |
676 | ret |
||
75 | diamond | 677 | |
678 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
679 | fs_NextHd0: |
||
585 | mario79 | 680 | push 0 |
681 | jmp fs_NextHd |
||
75 | diamond | 682 | fs_NextHd1: |
585 | mario79 | 683 | push 1 |
684 | jmp fs_NextHd |
||
75 | diamond | 685 | fs_NextHd2: |
585 | mario79 | 686 | push 2 |
687 | jmp fs_NextHd |
||
75 | diamond | 688 | fs_NextHd3: |
585 | mario79 | 689 | push 3 |
75 | diamond | 690 | fs_NextHd: |
585 | mario79 | 691 | pop ecx |
692 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
693 | cmp eax, ecx |
||
694 | jae fs_NextFloppy.no2 |
||
695 | inc eax |
||
696 | clc |
||
697 | ret |
||
237 | serge | 698 | |
87 | mario79 | 699 | ;******************************************************* |
700 | fs_NextCd: |
||
701 | ; we always have /cdX/1 |
||
585 | mario79 | 702 | test eax, eax |
703 | stc |
||
704 | jnz @f |
||
705 | mov al, 1 |
||
706 | clc |
||
87 | mario79 | 707 | @@: |
585 | mario79 | 708 | ret |
87 | mario79 | 709 | ;******************************************************* |
710 | |||
521 | diamond | 711 | process_replace_file_name: |
585 | mario79 | 712 | mov ebp, [full_file_name_table] |
713 | mov edi, [full_file_name_table.size] |
||
714 | dec edi |
||
715 | shl edi, 7 |
||
716 | add edi, ebp |
||
521 | diamond | 717 | .loop: |
585 | mario79 | 718 | cmp edi, ebp |
719 | jb .notfound |
||
720 | push esi edi |
||
521 | diamond | 721 | @@: |
585 | mario79 | 722 | cmp byte [edi], 0 |
723 | jz .dest_done |
||
724 | lodsb |
||
725 | test al, al |
||
726 | jz .cont |
||
727 | or al, 20h |
||
728 | scasb |
||
729 | jz @b |
||
730 | jmp .cont |
||
521 | diamond | 731 | .dest_done: |
585 | mario79 | 732 | cmp byte [esi], 0 |
733 | jz .found |
||
734 | cmp byte [esi], '/' |
||
735 | jnz .cont |
||
736 | inc esi |
||
737 | jmp .found |
||
521 | diamond | 738 | .cont: |
585 | mario79 | 739 | pop edi esi |
740 | sub edi, 128 |
||
741 | jmp .loop |
||
521 | diamond | 742 | .found: |
585 | mario79 | 743 | pop edi eax |
744 | mov ebp, esi |
||
745 | cmp byte [esi], 0 |
||
746 | lea esi, [edi+64] |
||
747 | jnz .ret |
||
521 | diamond | 748 | .notfound: |
585 | mario79 | 749 | xor ebp, ebp |
521 | diamond | 750 | .ret: |
585 | mario79 | 751 | ret |
521 | diamond | 752 | |
753 | sys_current_directory: |
||
585 | mario79 | 754 | mov esi, [current_slot] |
755 | mov esi, [esi+APPDATA.cur_dir] |
||
756 | mov edx, esi |
||
757 | dec eax |
||
758 | jz .set |
||
759 | dec eax |
||
760 | jz .get |
||
761 | ret |
||
521 | diamond | 762 | .get: |
763 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
764 | ; for our code: ebx->buffer,ecx=len |
||
765 | @@: |
||
585 | mario79 | 766 | lodsb |
767 | test al, al |
||
768 | jnz @b |
||
769 | sub esi, edx |
||
770 | inc esi |
||
771 | mov [esp+36], esi |
||
772 | cmp ecx, esi |
||
773 | jbe @f |
||
774 | mov ecx, esi |
||
521 | diamond | 775 | @@: |
585 | mario79 | 776 | cmp ecx, 1 |
777 | jbe .ret |
||
778 | mov esi, edx |
||
779 | mov edi, ebx |
||
780 | mov al, '/' |
||
781 | stosb |
||
782 | dec ecx |
||
783 | dec ecx |
||
784 | rep movsb |
||
785 | mov byte [edi], 0 |
||
521 | diamond | 786 | .ret: |
585 | mario79 | 787 | ret |
521 | diamond | 788 | .set: |
789 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
790 | ; for our code: ebx->string to set |
||
791 | @@: |
||
585 | mario79 | 792 | inc esi |
793 | cmp byte [esi-1], 0 |
||
794 | jnz @b |
||
795 | dec esi |
||
796 | cmp byte [ebx], '/' |
||
797 | jz .set_absolute |
||
521 | diamond | 798 | ; string gives relative path |
799 | .relative: |
||
585 | mario79 | 800 | cmp byte [ebx], 0 |
801 | jz .set_ok |
||
802 | cmp word [ebx], '.' |
||
803 | jz .set_ok |
||
804 | cmp word [ebx], './' |
||
805 | jnz @f |
||
806 | add ebx, 2 |
||
807 | jmp .relative |
||
521 | diamond | 808 | @@: |
585 | mario79 | 809 | cmp word [ebx], '..' |
810 | jnz .doset_relative |
||
811 | cmp byte [ebx+2], 0 |
||
812 | jz @f |
||
813 | cmp byte [ebx+2], '/' |
||
814 | jnz .doset_relative |
||
521 | diamond | 815 | @@: |
585 | mario79 | 816 | dec esi |
817 | cmp byte [esi], '/' |
||
818 | jnz @b |
||
819 | mov byte [esi], 0 |
||
820 | add ebx, 3 |
||
821 | jmp .relative |
||
521 | diamond | 822 | .doset_relative: |
585 | mario79 | 823 | add edx, 0x1000 |
824 | mov byte [esi], '/' |
||
825 | inc esi |
||
826 | cmp esi, edx |
||
827 | jae .overflow_esi |
||
521 | diamond | 828 | @@: |
585 | mario79 | 829 | mov al, [ebx] |
830 | inc ebx |
||
831 | mov [esi], al |
||
832 | inc esi |
||
833 | test al, al |
||
834 | jz .set_ok |
||
835 | cmp esi, edx |
||
836 | jb @b |
||
521 | diamond | 837 | .overflow_esi: |
585 | mario79 | 838 | mov byte [esi-1], 0 ; force null-terminated string |
521 | diamond | 839 | .set_ok: |
585 | mario79 | 840 | ret |
521 | diamond | 841 | .set_absolute: |
585 | mario79 | 842 | lea esi, [ebx+1] |
843 | call process_replace_file_name |
||
844 | mov edi, edx |
||
845 | add edx, 0x1000 |
||
521 | diamond | 846 | .set_copy: |
585 | mario79 | 847 | lodsb |
848 | stosb |
||
849 | test al, al |
||
850 | jz .set_part2 |
||
521 | diamond | 851 | .set_copy_cont: |
585 | mario79 | 852 | cmp edi, edx |
853 | jb .set_copy |
||
521 | diamond | 854 | .overflow_edi: |
585 | mario79 | 855 | mov byte [edi-1], 0 |
856 | ret |
||
521 | diamond | 857 | .set_part2: |
585 | mario79 | 858 | mov esi, ebp |
859 | xor ebp, ebp |
||
860 | test esi, esi |
||
861 | jz .set_ok |
||
862 | mov byte [edi-1], '/' |
||
863 | jmp .set_copy_cont |