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Rev | Author | Line No. | Line |
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425 | victor | 1 | $Revision: 488 $ |
431 | serge | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Distributed under terms of the GNU General Public License ;; |
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6 | ;; ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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8 | |||
488 | spraid | 9 | image_of_eax EQU esp+44 ;36 |
10 | image_of_ebx EQU esp+32 ;24 |
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11 | |||
72 | diamond | 12 | ; System function 70 - files with long names (LFN) |
71 | diamond | 13 | ; diamond, 2006 |
14 | |||
15 | iglobal |
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16 | ; in this table names must be in lowercase |
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17 | rootdirs: |
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75 | diamond | 18 | db 2,'rd' |
19 | dd fs_OnRamdisk |
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20 | dd fs_NextRamdisk |
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21 | db 7,'ramdisk' |
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22 | dd fs_OnRamdisk |
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23 | dd fs_NextRamdisk |
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24 | db 2,'fd' |
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25 | dd fs_OnFloppy |
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26 | dd fs_NextFloppy |
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27 | db 10,'floppydisk' |
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28 | dd fs_OnFloppy |
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29 | dd fs_NextFloppy |
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30 | db 3,'hd0' |
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31 | dd fs_OnHd0 |
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32 | dd fs_NextHd0 |
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33 | db 3,'hd1' |
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34 | dd fs_OnHd1 |
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35 | dd fs_NextHd1 |
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36 | db 3,'hd2' |
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37 | dd fs_OnHd2 |
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38 | dd fs_NextHd2 |
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39 | db 3,'hd3' |
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40 | dd fs_OnHd3 |
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41 | dd fs_NextHd3 |
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87 | mario79 | 42 | ;********************************************** |
43 | db 3,'cd0' |
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44 | dd fs_OnCd0 |
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45 | dd fs_NextCd |
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46 | db 3,'cd1' |
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47 | dd fs_OnCd1 |
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48 | dd fs_NextCd |
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49 | db 3,'cd2' |
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50 | dd fs_OnCd2 |
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51 | dd fs_NextCd |
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52 | db 3,'cd3' |
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53 | dd fs_OnCd3 |
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54 | dd fs_NextCd |
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237 | serge | 55 | ;*********************************************** |
75 | diamond | 56 | db 0 |
57 | |||
87 | mario79 | 58 | |
75 | diamond | 59 | virtual_root_query: |
60 | dd fs_HasRamdisk |
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78 | diamond | 61 | db 'rd',0 |
75 | diamond | 62 | dd fs_HasFloppy |
78 | diamond | 63 | db 'fd',0 |
75 | diamond | 64 | dd fs_HasHd0 |
78 | diamond | 65 | db 'hd0',0 |
75 | diamond | 66 | dd fs_HasHd1 |
78 | diamond | 67 | db 'hd1',0 |
75 | diamond | 68 | dd fs_HasHd2 |
78 | diamond | 69 | db 'hd2',0 |
75 | diamond | 70 | dd fs_HasHd3 |
78 | diamond | 71 | db 'hd3',0 |
87 | mario79 | 72 | ;********************************************** |
73 | dd fs_HasCd0 |
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74 | db 'cd0',0 |
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75 | dd fs_HasCd1 |
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76 | db 'cd1',0 |
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77 | dd fs_HasCd2 |
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78 | db 'cd2',0 |
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79 | dd fs_HasCd3 |
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80 | db 'cd3',0 |
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81 | ;********************************************** |
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75 | diamond | 82 | dd 0 |
71 | diamond | 83 | endg |
84 | |||
488 | spraid | 85 | end_of_file_system_lfn: |
86 | pop edx |
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87 | stdcall kernel_free, edx |
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88 | ret |
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89 | |||
90 | |||
71 | diamond | 91 | file_system_lfn: |
92 | ; in: eax->fileinfo block |
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93 | ; operation codes: |
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72 | diamond | 94 | ; 0 : read file |
75 | diamond | 95 | ; 1 : read folder |
83 | diamond | 96 | ; 2 : create/rewrite file |
133 | diamond | 97 | ; 3 : write/append to file |
98 | ; 4 : set end of file |
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86 | diamond | 99 | ; 5 : get file/directory attributes structure |
100 | ; 6 : set file/directory attributes structure |
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91 | diamond | 101 | ; 7 : start application |
171 | diamond | 102 | ; 8 : delete file |
321 | diamond | 103 | ; 9 : create directory |
71 | diamond | 104 | |
488 | spraid | 105 | ; замена адреса возврата |
106 | push eax |
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107 | stdcall kernel_alloc, 200 |
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108 | mov edx,eax |
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109 | pop eax |
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110 | push edx |
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111 | push end_of_file_system_lfn |
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112 | mov ebx,edx |
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113 | |||
114 | mov ecx, [eax] |
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115 | mov [ebx],ecx |
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116 | |||
117 | add ebx,4 |
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118 | mov ecx, [eax+4] |
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119 | mov [ebx],ecx |
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120 | |||
121 | add ebx,4 |
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122 | mov ecx, [eax+8] |
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123 | mov [ebx],ecx |
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124 | |||
125 | add ebx,4 |
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126 | mov ecx, [eax+12] |
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127 | mov [ebx],ecx |
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128 | |||
129 | add ebx,4 |
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130 | mov ecx, [eax+16] |
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131 | mov [ebx],ecx |
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132 | |||
133 | add ebx,4 |
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134 | push edx ; !!!!!!!!!!!!!!!!!!! |
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135 | ; eax - yначало старого пакета |
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136 | ; edx - начало нового пакета |
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137 | ; ebx - куда ложить строку |
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138 | add eax,20 |
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139 | mov cl, [eax] |
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140 | test cl,cl |
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141 | jnz @f |
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142 | mov eax,[eax+1] |
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143 | @@: |
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144 | stdcall full_file_name,eax,ebx |
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145 | pop eax |
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146 | |||
147 | |||
148 | |||
149 | |||
150 | |||
151 | |||
465 | serge | 152 | ; add eax, std_application_base_address |
71 | diamond | 153 | ; parse file name |
75 | diamond | 154 | xchg ebx, eax |
155 | lea esi, [ebx+20] |
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91 | diamond | 156 | mov ebp, esi ; for 'start app' function full path must be known |
75 | diamond | 157 | lodsb |
84 | diamond | 158 | test al, al |
159 | jnz @f |
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160 | mov esi, [esi] |
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465 | serge | 161 | ; add esi, std_application_base_address |
91 | diamond | 162 | mov ebp, esi |
84 | diamond | 163 | lodsb |
164 | @@: |
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237 | serge | 165 | cmp dword [ebx], 7 |
166 | jne @F |
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167 | mov edx, [ebx+4] |
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168 | mov ebx, [ebx+8] |
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169 | test ebx, ebx |
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170 | jz .l1 |
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465 | serge | 171 | ; add ebx, new_app_base |
237 | serge | 172 | .l1: |
173 | call fs_execute ; ebp, ebx, edx |
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488 | spraid | 174 | mov [image_of_eax], eax |
237 | serge | 175 | ret |
176 | @@: |
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75 | diamond | 177 | cmp al, '/' |
178 | jz @f |
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71 | diamond | 179 | .notfound: |
488 | spraid | 180 | mov dword [image_of_eax], 5 ; file not found |
75 | diamond | 181 | ret |
71 | diamond | 182 | @@: |
75 | diamond | 183 | cmp byte [esi], 0 |
184 | jz .rootdir |
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185 | mov edi, rootdirs-8 |
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186 | xor ecx, ecx |
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187 | push esi |
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71 | diamond | 188 | .scan1: |
75 | diamond | 189 | pop esi |
190 | add edi, ecx |
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191 | scasd |
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192 | scasd |
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193 | mov cl, byte [edi] |
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194 | jecxz .notfound |
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195 | inc edi |
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196 | push esi |
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71 | diamond | 197 | @@: |
75 | diamond | 198 | lodsb |
199 | or al, 20h |
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200 | scasb |
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201 | loopz @b |
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202 | jnz .scan1 |
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203 | lodsb |
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204 | cmp al, '/' |
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205 | jz .found1 |
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206 | test al, al |
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207 | jnz .scan1 |
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208 | pop eax |
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71 | diamond | 209 | ; directory /xxx |
210 | .maindir: |
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75 | diamond | 211 | cmp dword [ebx], 1 |
212 | jnz .access_denied |
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213 | xor eax, eax |
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214 | mov ebp, [ebx+12] |
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215 | mov edx, [ebx+16] |
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465 | serge | 216 | ; add edx, std_application_base_address |
78 | diamond | 217 | push dword [ebx+4] ; first block |
218 | mov ebx, [ebx+8] ; flags |
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75 | diamond | 219 | mov esi, [edi+4] |
78 | diamond | 220 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
75 | diamond | 221 | mov edi, edx |
222 | mov ecx, 32/4 |
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223 | rep stosd |
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224 | mov byte [edx], 1 ; version |
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225 | .maindir_loop: |
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226 | call esi |
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227 | jc .maindir_done |
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228 | inc dword [edx+8] |
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78 | diamond | 229 | dec dword [esp] |
75 | diamond | 230 | jns .maindir_loop |
231 | dec ebp |
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232 | js .maindir_loop |
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233 | inc dword [edx+4] |
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234 | mov dword [edi], 0x10 ; attributes: folder |
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235 | mov dword [edi+4], 1 ; name type: UNICODE |
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236 | push eax |
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237 | xor eax, eax |
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238 | add edi, 8 |
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239 | mov ecx, 40/4-2 |
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240 | rep stosd |
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241 | pop eax |
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242 | push eax edx |
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243 | ; convert number in eax to decimal UNICODE string |
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244 | push edi |
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245 | push -'0' |
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246 | mov cl, 10 |
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247 | @@: |
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248 | xor edx, edx |
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249 | div ecx |
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250 | push edx |
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251 | test eax, eax |
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252 | jnz @b |
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253 | @@: |
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254 | pop eax |
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255 | add al, '0' |
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78 | diamond | 256 | stosb |
257 | test bl, 1 ; UNICODE name? |
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258 | jz .ansi2 |
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259 | mov byte [edi], 0 |
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260 | inc edi |
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261 | .ansi2: |
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262 | test al, al |
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75 | diamond | 263 | jnz @b |
264 | mov byte [edi-1], 0 |
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265 | pop edi |
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78 | diamond | 266 | ; UNICODE name length is 520 bytes, ANSI - 264 |
75 | diamond | 267 | add edi, 520 |
78 | diamond | 268 | test bl, 1 |
269 | jnz @f |
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270 | sub edi, 520-264 |
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271 | @@: |
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75 | diamond | 272 | pop edx eax |
273 | jmp .maindir_loop |
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274 | .maindir_done: |
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78 | diamond | 275 | pop eax |
276 | mov ebx, [edx+4] |
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75 | diamond | 277 | xor eax, eax |
278 | dec ebp |
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279 | js @f |
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280 | mov al, ERROR_END_OF_FILE |
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281 | @@: |
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488 | spraid | 282 | mov [image_of_eax], eax |
283 | mov [image_of_ebx], ebx |
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75 | diamond | 284 | ret |
71 | diamond | 285 | ; directory / |
286 | .rootdir: |
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75 | diamond | 287 | cmp dword [ebx], 1 ; read folder? |
288 | jz .readroot |
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289 | .access_denied: |
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488 | spraid | 290 | mov dword [image_of_eax], 10 ; access denied |
75 | diamond | 291 | ret |
71 | diamond | 292 | |
75 | diamond | 293 | .readroot: |
294 | ; virtual root folder - special handler |
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295 | mov esi, virtual_root_query |
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296 | mov ebp, [ebx+12] |
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297 | mov edx, [ebx+16] |
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465 | serge | 298 | ; add edx, std_application_base_address |
78 | diamond | 299 | push dword [ebx+4] ; first block |
300 | mov ebx, [ebx+8] ; flags |
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75 | diamond | 301 | xor eax, eax |
78 | diamond | 302 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
75 | diamond | 303 | mov edi, edx |
304 | mov ecx, 32/4 |
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305 | rep stosd |
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306 | mov byte [edx], 1 ; version |
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307 | .readroot_loop: |
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308 | cmp dword [esi], eax |
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309 | jz .readroot_done |
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310 | call dword [esi] |
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311 | add esi, 4 |
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312 | test eax, eax |
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313 | jnz @f |
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314 | .readroot_next: |
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315 | or ecx, -1 |
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316 | xchg esi, edi |
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78 | diamond | 317 | repnz scasb |
75 | diamond | 318 | xchg esi, edi |
319 | jmp .readroot_loop |
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320 | @@: |
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321 | xor eax, eax |
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322 | inc dword [edx+8] |
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78 | diamond | 323 | dec dword [esp] |
75 | diamond | 324 | jns .readroot_next |
325 | dec ebp |
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326 | js .readroot_next |
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327 | inc dword [edx+4] |
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328 | mov dword [edi], 0x10 ; attributes: folder |
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329 | mov dword [edi+4], 1 ; name type: UNICODE |
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330 | add edi, 8 |
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331 | mov ecx, 40/4-2 |
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332 | rep stosd |
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333 | push edi |
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334 | @@: |
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78 | diamond | 335 | lodsb |
336 | stosb |
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337 | test bl, 1 |
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338 | jz .ansi |
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339 | mov byte [edi], 0 |
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340 | inc edi |
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341 | .ansi: |
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75 | diamond | 342 | test eax, eax |
343 | jnz @b |
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344 | pop edi |
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345 | add edi, 520 |
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78 | diamond | 346 | test bl, 1 |
347 | jnz .readroot_loop |
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348 | sub edi, 520-264 |
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75 | diamond | 349 | jmp .readroot_loop |
350 | .readroot_done: |
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78 | diamond | 351 | pop eax |
352 | mov ebx, [edx+4] |
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75 | diamond | 353 | xor eax, eax |
354 | dec ebp |
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355 | js @f |
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356 | mov al, ERROR_END_OF_FILE |
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357 | @@: |
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488 | spraid | 358 | mov [image_of_eax], eax |
359 | mov [image_of_ebx], ebx |
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75 | diamond | 360 | ret |
361 | |||
71 | diamond | 362 | .found1: |
75 | diamond | 363 | pop eax |
364 | cmp byte [esi], 0 |
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365 | jz .maindir |
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71 | diamond | 366 | ; read partition number |
75 | diamond | 367 | xor ecx, ecx |
368 | xor eax, eax |
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71 | diamond | 369 | @@: |
75 | diamond | 370 | lodsb |
371 | cmp al, '/' |
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372 | jz .done1 |
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373 | test al, al |
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374 | jz .done1 |
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375 | sub al, '0' |
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376 | cmp al, 9 |
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377 | ja .notfound |
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378 | imul ecx, 10 |
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379 | add ecx, eax |
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380 | jmp @b |
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71 | diamond | 381 | .done1: |
75 | diamond | 382 | test ecx, ecx |
383 | jz .notfound |
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384 | test al, al |
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385 | jnz @f |
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386 | dec esi |
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71 | diamond | 387 | @@: |
75 | diamond | 388 | ; now [edi] contains handler address, ecx - partition number, |
389 | ; esi points to ASCIIZ string - rest of name |
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390 | jmp dword [edi] |
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71 | diamond | 391 | |
392 | ; handlers for devices |
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75 | diamond | 393 | ; in: ecx = 0 => query virtual directory /xxx |
71 | diamond | 394 | ; in: ecx = partition number |
395 | ; esi -> relative (for device) name |
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396 | ; ebx -> fileinfo |
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488 | spraid | 397 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
71 | diamond | 398 | |
399 | fs_OnRamdisk: |
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75 | diamond | 400 | cmp ecx, 1 |
401 | jnz file_system_lfn.notfound |
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402 | mov eax, [ebx] |
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83 | diamond | 403 | cmp eax, fs_NumRamdiskServices |
404 | jae .not_impl |
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75 | diamond | 405 | mov ecx, [ebx+12] |
406 | mov edx, [ebx+16] |
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465 | serge | 407 | ; add edx, std_application_base_address |
75 | diamond | 408 | add ebx, 4 |
409 | call dword [fs_RamdiskServices + eax*4] |
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488 | spraid | 410 | mov [image_of_eax], eax |
411 | mov [image_of_ebx], ebx |
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75 | diamond | 412 | ret |
71 | diamond | 413 | .not_impl: |
488 | spraid | 414 | mov dword [image_of_eax], 2 ; not implemented |
75 | diamond | 415 | ret |
71 | diamond | 416 | |
86 | diamond | 417 | fs_NotImplemented: |
418 | mov eax, 2 |
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419 | ret |
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420 | |||
71 | diamond | 421 | fs_RamdiskServices: |
75 | diamond | 422 | dd fs_RamdiskRead |
423 | dd fs_RamdiskReadFolder |
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83 | diamond | 424 | dd fs_RamdiskRewrite |
131 | diamond | 425 | dd fs_RamdiskWrite |
133 | diamond | 426 | dd fs_RamdiskSetFileEnd |
86 | diamond | 427 | dd fs_RamdiskGetFileInfo |
428 | dd fs_RamdiskSetFileInfo |
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321 | diamond | 429 | dd 0 ;fs_RamdiskExecute |
171 | diamond | 430 | dd fs_RamdiskDelete |
321 | diamond | 431 | dd fs_RamdiskCreateFolder |
83 | diamond | 432 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
71 | diamond | 433 | |
434 | fs_OnFloppy: |
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75 | diamond | 435 | cmp ecx, 2 |
436 | ja file_system_lfn.notfound |
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437 | mov eax, [ebx] |
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83 | diamond | 438 | cmp eax, fs_NumFloppyServices |
439 | jae fs_OnRamdisk.not_impl |
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75 | diamond | 440 | call reserve_flp |
441 | mov [flp_number], cl |
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442 | mov ecx, [ebx+12] |
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443 | mov edx, [ebx+16] |
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465 | serge | 444 | ; add edx, std_application_base_address |
75 | diamond | 445 | add ebx, 4 |
446 | call dword [fs_FloppyServices + eax*4] |
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447 | and [flp_status], 0 |
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488 | spraid | 448 | mov [image_of_eax], eax |
449 | mov [image_of_ebx], ebx |
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75 | diamond | 450 | ret |
71 | diamond | 451 | |
452 | fs_FloppyServices: |
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75 | diamond | 453 | dd fs_FloppyRead |
454 | dd fs_FloppyReadFolder |
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83 | diamond | 455 | dd fs_FloppyRewrite |
131 | diamond | 456 | dd fs_FloppyWrite |
133 | diamond | 457 | dd fs_FloppySetFileEnd |
86 | diamond | 458 | dd fs_FloppyGetFileInfo |
459 | dd fs_FloppySetFileInfo |
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321 | diamond | 460 | dd 0 ;fs_FloppyExecute |
171 | diamond | 461 | dd fs_FloppyDelete |
321 | diamond | 462 | dd fs_FloppyCreateFolder |
83 | diamond | 463 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
71 | diamond | 464 | |
465 | fs_OnHd0: |
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75 | diamond | 466 | call reserve_hd1 |
467 | mov [hdbase], 0x1F0 |
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468 | mov [hdid], 0 |
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469 | push 1 |
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470 | jmp fs_OnHd |
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71 | diamond | 471 | fs_OnHd1: |
75 | diamond | 472 | call reserve_hd1 |
473 | mov [hdbase], 0x1F0 |
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474 | mov [hdid], 0x10 |
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475 | push 2 |
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476 | jmp fs_OnHd |
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71 | diamond | 477 | fs_OnHd2: |
75 | diamond | 478 | call reserve_hd1 |
479 | mov [hdbase], 0x170 |
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480 | mov [hdid], 0 |
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481 | push 3 |
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482 | jmp fs_OnHd |
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71 | diamond | 483 | fs_OnHd3: |
75 | diamond | 484 | call reserve_hd1 |
485 | mov [hdbase], 0x170 |
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486 | mov [hdid], 0x10 |
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487 | push 4 |
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71 | diamond | 488 | fs_OnHd: |
95 | mario79 | 489 | call reserve_hd_channel |
75 | diamond | 490 | pop eax |
491 | mov [hdpos], eax |
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492 | cmp ecx, 0x100 |
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493 | jae .nf |
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422 | serge | 494 | cmp cl, [DRIVE_DATA+1+eax] |
75 | diamond | 495 | jbe @f |
496 | .nf: |
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95 | mario79 | 497 | call free_hd_channel |
75 | diamond | 498 | and [hd1_status], 0 |
488 | spraid | 499 | mov dword [image_of_eax], 5 ; not found |
75 | diamond | 500 | ret |
71 | diamond | 501 | @@: |
75 | diamond | 502 | mov [fat32part], ecx |
503 | push ebx esi |
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504 | call choice_necessity_partition_1 |
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505 | pop esi ebx |
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506 | mov ecx, [ebx+12] |
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507 | mov edx, [ebx+16] |
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465 | serge | 508 | ; add edx, std_application_base_address |
75 | diamond | 509 | mov eax, [ebx] |
83 | diamond | 510 | cmp eax, fs_NumHdServices |
511 | jae .not_impl |
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75 | diamond | 512 | add ebx, 4 |
513 | call dword [fs_HdServices + eax*4] |
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95 | mario79 | 514 | call free_hd_channel |
75 | diamond | 515 | and [hd1_status], 0 |
488 | spraid | 516 | mov [image_of_eax], eax |
517 | mov [image_of_ebx], ebx |
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75 | diamond | 518 | ret |
519 | .not_impl: |
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95 | mario79 | 520 | call free_hd_channel |
75 | diamond | 521 | and [hd1_status], 0 |
488 | spraid | 522 | mov dword [image_of_eax], 2 ; not implemented |
75 | diamond | 523 | ret |
71 | diamond | 524 | |
525 | fs_HdServices: |
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75 | diamond | 526 | dd fs_HdRead |
527 | dd fs_HdReadFolder |
||
83 | diamond | 528 | dd fs_HdRewrite |
131 | diamond | 529 | dd fs_HdWrite |
133 | diamond | 530 | dd fs_HdSetFileEnd |
86 | diamond | 531 | dd fs_HdGetFileInfo |
532 | dd fs_HdSetFileInfo |
||
256 | diamond | 533 | dd 0 ;fs_HdExecute |
171 | diamond | 534 | dd fs_HdDelete |
321 | diamond | 535 | dd fs_HdCreateFolder |
83 | diamond | 536 | fs_NumHdServices = ($ - fs_HdServices)/4 |
75 | diamond | 537 | |
87 | mario79 | 538 | ;******************************************************* |
539 | fs_OnCd0: |
||
540 | call reserve_cd |
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541 | mov [ChannelNumber],1 |
||
542 | mov [DiskNumber],0 |
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543 | push 6 |
||
544 | jmp fs_OnCd |
||
545 | fs_OnCd1: |
||
546 | call reserve_cd |
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547 | mov [ChannelNumber],1 |
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548 | mov [DiskNumber],1 |
||
549 | push 4 |
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550 | jmp fs_OnCd |
||
551 | fs_OnCd2: |
||
552 | call reserve_cd |
||
553 | mov [ChannelNumber],2 |
||
554 | mov [DiskNumber],0 |
||
555 | push 2 |
||
556 | jmp fs_OnCd |
||
557 | fs_OnCd3: |
||
558 | call reserve_cd |
||
559 | mov [ChannelNumber],2 |
||
560 | mov [DiskNumber],1 |
||
561 | push 0 |
||
562 | fs_OnCd: |
||
95 | mario79 | 563 | call reserve_cd_channel |
87 | mario79 | 564 | pop eax |
565 | mov [hdpos], eax |
||
566 | cmp ecx, 0x100 |
||
567 | jae .nf |
||
133 | diamond | 568 | push ecx ebx |
87 | mario79 | 569 | mov cl,al |
389 | serge | 570 | mov bl,[DRIVE_DATA+1] |
87 | mario79 | 571 | shr bl,cl |
572 | test bl,2 |
||
133 | diamond | 573 | pop ebx ecx |
87 | mario79 | 574 | |
575 | jnz @f |
||
576 | .nf: |
||
95 | mario79 | 577 | call free_cd_channel |
87 | mario79 | 578 | and [cd_status], 0 |
488 | spraid | 579 | mov dword [image_of_eax], 5 ; not found |
87 | mario79 | 580 | ret |
581 | @@: |
||
582 | mov ecx, [ebx+12] |
||
583 | mov edx, [ebx+16] |
||
465 | serge | 584 | ; add edx, std_application_base_address |
87 | mario79 | 585 | mov eax, [ebx] |
90 | mario79 | 586 | cmp eax,fs_NumCdServices |
587 | jae .not_impl |
||
87 | mario79 | 588 | add ebx, 4 |
589 | call dword [fs_CdServices + eax*4] |
||
95 | mario79 | 590 | call free_cd_channel |
87 | mario79 | 591 | and [cd_status], 0 |
488 | spraid | 592 | mov [image_of_eax], eax |
593 | mov [image_of_ebx], ebx |
||
87 | mario79 | 594 | ret |
595 | .not_impl: |
||
95 | mario79 | 596 | call free_cd_channel |
89 | diamond | 597 | and [cd_status], 0 |
488 | spraid | 598 | mov dword [image_of_eax], 2 ; not implemented |
87 | mario79 | 599 | ret |
600 | |||
601 | fs_CdServices: |
||
602 | dd fs_CdRead |
||
603 | dd fs_CdReadFolder |
||
90 | mario79 | 604 | dd fs_NotImplemented |
605 | dd fs_NotImplemented |
||
606 | dd fs_NotImplemented |
||
607 | dd fs_CdGetFileInfo |
||
608 | dd fs_NotImplemented |
||
94 | mario79 | 609 | dd fs_CdExecute |
90 | mario79 | 610 | fs_NumCdServices = ($ - fs_CdServices)/4 |
611 | |||
87 | mario79 | 612 | ;******************************************************* |
613 | |||
75 | diamond | 614 | fs_HasRamdisk: |
615 | mov al, 1 ; we always have ramdisk |
||
616 | ret |
||
617 | |||
618 | fs_HasFloppy: |
||
381 | serge | 619 | cmp byte [DRIVE_DATA], 0 |
75 | diamond | 620 | setnz al |
621 | ret |
||
622 | |||
623 | fs_HasHd0: |
||
381 | serge | 624 | mov al, [DRIVE_DATA+1] |
75 | diamond | 625 | and al, 11000000b |
626 | cmp al, 01000000b |
||
627 | setz al |
||
628 | ret |
||
629 | fs_HasHd1: |
||
381 | serge | 630 | mov al, [DRIVE_DATA+1] |
75 | diamond | 631 | and al, 00110000b |
632 | cmp al, 00010000b |
||
633 | setz al |
||
634 | ret |
||
635 | fs_HasHd2: |
||
381 | serge | 636 | mov al, [DRIVE_DATA+1] |
75 | diamond | 637 | and al, 00001100b |
638 | cmp al, 00000100b |
||
639 | setz al |
||
640 | ret |
||
641 | fs_HasHd3: |
||
381 | serge | 642 | mov al, [DRIVE_DATA+1] |
75 | diamond | 643 | and al, 00000011b |
644 | cmp al, 00000001b |
||
645 | setz al |
||
646 | ret |
||
647 | |||
87 | mario79 | 648 | ;******************************************************* |
649 | fs_HasCd0: |
||
381 | serge | 650 | mov al, [DRIVE_DATA+1] |
87 | mario79 | 651 | and al, 11000000b |
652 | cmp al, 10000000b |
||
653 | setz al |
||
654 | ret |
||
655 | fs_HasCd1: |
||
381 | serge | 656 | mov al, [DRIVE_DATA+1] |
87 | mario79 | 657 | and al, 00110000b |
658 | cmp al, 00100000b |
||
659 | setz al |
||
660 | ret |
||
661 | fs_HasCd2: |
||
381 | serge | 662 | mov al, [DRIVE_DATA+1] |
87 | mario79 | 663 | and al, 00001100b |
664 | cmp al, 00001000b |
||
665 | setz al |
||
666 | ret |
||
667 | fs_HasCd3: |
||
381 | serge | 668 | mov al, [DRIVE_DATA+1] |
87 | mario79 | 669 | and al, 00000011b |
670 | cmp al, 00000010b |
||
671 | setz al |
||
672 | ret |
||
237 | serge | 673 | ;******************************************************* |
87 | mario79 | 674 | |
75 | diamond | 675 | ; fs_NextXXX functions: |
676 | ; in: eax = partition number, from which start to scan |
||
677 | ; out: CF=1 => no more partitions |
||
678 | ; CF=0 => eax=next partition number |
||
679 | |||
680 | fs_NextRamdisk: |
||
681 | ; we always have /rd/1 |
||
682 | test eax, eax |
||
683 | stc |
||
684 | jnz @f |
||
685 | mov al, 1 |
||
686 | clc |
||
687 | @@: |
||
688 | ret |
||
689 | |||
690 | fs_NextFloppy: |
||
381 | serge | 691 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
692 | test byte [DRIVE_DATA], 0xF0 |
||
75 | diamond | 693 | jz .no1 |
694 | test eax, eax |
||
695 | jnz .no1 |
||
696 | inc eax |
||
697 | ret ; CF cleared |
||
698 | .no1: |
||
381 | serge | 699 | test byte [DRIVE_DATA], 0x0F |
75 | diamond | 700 | jz .no2 |
701 | cmp al, 2 |
||
702 | jae .no2 |
||
703 | mov al, 2 |
||
704 | clc |
||
705 | ret |
||
706 | .no2: |
||
707 | stc |
||
708 | ret |
||
709 | |||
710 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
711 | fs_NextHd0: |
||
712 | push 0 |
||
713 | jmp fs_NextHd |
||
714 | fs_NextHd1: |
||
715 | push 1 |
||
716 | jmp fs_NextHd |
||
717 | fs_NextHd2: |
||
718 | push 2 |
||
719 | jmp fs_NextHd |
||
720 | fs_NextHd3: |
||
721 | push 3 |
||
722 | fs_NextHd: |
||
723 | pop ecx |
||
381 | serge | 724 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
75 | diamond | 725 | cmp eax, ecx |
726 | jae fs_NextFloppy.no2 |
||
727 | inc eax |
||
728 | clc |
||
729 | ret |
||
237 | serge | 730 | |
87 | mario79 | 731 | ;******************************************************* |
732 | fs_NextCd: |
||
733 | ; we always have /cdX/1 |
||
734 | test eax, eax |
||
735 | stc |
||
736 | jnz @f |
||
737 | mov al, 1 |
||
738 | clc |
||
739 | @@: |
||
740 | ret |
||
741 | ;******************************************************* |
||
742 |