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1 | $Revision: 465 $ |
1 | $Revision: 521 $ |
2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
3 | ;; ;; |
4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
5 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; Distributed under terms of the GNU General Public License ;; |
6 | ;; ;; |
6 | ;; ;; |
7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
8 | 8 | ||
9 | uglobal |
9 | uglobal |
10 | cd_current_pointer_of_input dd 0 |
10 | cd_current_pointer_of_input dd 0 |
11 | cd_current_pointer_of_input_2 dd 0 |
11 | cd_current_pointer_of_input_2 dd 0 |
12 | cd_mem_location dd 0 |
12 | cd_mem_location dd 0 |
13 | cd_counter_block dd 0 |
13 | cd_counter_block dd 0 |
14 | IDE_Channel_1 db 0 |
14 | IDE_Channel_1 db 0 |
15 | IDE_Channel_2 db 0 |
15 | IDE_Channel_2 db 0 |
16 | endg |
16 | endg |
17 | 17 | ||
18 | CDDataBuf equ 0x7000 |
18 | CDDataBuf equ 0x7000 |
19 | 19 | ||
20 | reserve_cd: |
20 | reserve_cd: |
21 | 21 | ||
22 | cli |
22 | cli |
23 | cmp [cd_status],0 |
23 | cmp [cd_status],0 |
24 | je reserve_ok2 |
24 | je reserve_ok2 |
25 | 25 | ||
26 | sti |
26 | sti |
27 | call change_task |
27 | call change_task |
28 | jmp reserve_cd |
28 | jmp reserve_cd |
29 | 29 | ||
30 | reserve_ok2: |
30 | reserve_ok2: |
31 | 31 | ||
32 | push eax |
32 | push eax |
33 | mov eax,[CURRENT_TASK] |
33 | mov eax,[CURRENT_TASK] |
34 | shl eax,5 |
34 | shl eax,5 |
35 | mov eax,[eax+CURRENT_TASK+TASKDATA.pid] |
35 | mov eax,[eax+CURRENT_TASK+TASKDATA.pid] |
36 | mov [cd_status],eax |
36 | mov [cd_status],eax |
37 | pop eax |
37 | pop eax |
38 | sti |
38 | sti |
39 | ret |
39 | ret |
40 | 40 | ||
41 | reserve_cd_channel: |
41 | reserve_cd_channel: |
42 | cmp [ChannelNumber],1 |
42 | cmp [ChannelNumber],1 |
43 | jne .IDE_Channel_2 |
43 | jne .IDE_Channel_2 |
44 | .IDE_Channel_1: |
44 | .IDE_Channel_1: |
45 | cli |
45 | cli |
46 | cmp [IDE_Channel_1],0 |
46 | cmp [IDE_Channel_1],0 |
47 | je .reserve_ok_1 |
47 | je .reserve_ok_1 |
48 | sti |
48 | sti |
49 | call change_task |
49 | call change_task |
50 | jmp .IDE_Channel_1 |
50 | jmp .IDE_Channel_1 |
51 | .IDE_Channel_2: |
51 | .IDE_Channel_2: |
52 | cli |
52 | cli |
53 | cmp [IDE_Channel_2],0 |
53 | cmp [IDE_Channel_2],0 |
54 | je .reserve_ok_2 |
54 | je .reserve_ok_2 |
55 | sti |
55 | sti |
56 | call change_task |
56 | call change_task |
57 | jmp .IDE_Channel_1 |
57 | jmp .IDE_Channel_1 |
58 | .reserve_ok_1: |
58 | .reserve_ok_1: |
59 | mov [IDE_Channel_1],1 |
59 | mov [IDE_Channel_1],1 |
60 | ret |
60 | ret |
61 | .reserve_ok_2: |
61 | .reserve_ok_2: |
62 | mov [IDE_Channel_2],1 |
62 | mov [IDE_Channel_2],1 |
63 | ret |
63 | ret |
64 | 64 | ||
65 | free_cd_channel: |
65 | free_cd_channel: |
66 | cmp [ChannelNumber],1 |
66 | cmp [ChannelNumber],1 |
67 | jne .IDE_Channel_2 |
67 | jne .IDE_Channel_2 |
68 | .IDE_Channel_1: |
68 | .IDE_Channel_1: |
69 | mov [IDE_Channel_1],0 |
69 | mov [IDE_Channel_1],0 |
70 | ret |
70 | ret |
71 | .IDE_Channel_2: |
71 | .IDE_Channel_2: |
72 | mov [IDE_Channel_2],0 |
72 | mov [IDE_Channel_2],0 |
73 | ret |
73 | ret |
74 | 74 | ||
75 | uglobal |
75 | uglobal |
76 | cd_status dd 0 |
76 | cd_status dd 0 |
77 | endg |
77 | endg |
78 | 78 | ||
79 | ;---------------------------------------------------------------- |
79 | ;---------------------------------------------------------------- |
80 | ; |
80 | ; |
81 | ; fs_CdRead - LFN variant for reading CD disk |
81 | ; fs_CdRead - LFN variant for reading CD disk |
82 | ; |
82 | ; |
83 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
83 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
84 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
84 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
85 | ; may be ebx=0 - start from first byte |
85 | ; may be ebx=0 - start from first byte |
86 | ; ecx number of bytes to read, 0+ |
86 | ; ecx number of bytes to read, 0+ |
87 | ; edx mem location to return data |
87 | ; edx mem location to return data |
88 | ; |
88 | ; |
89 | ; ret ebx = bytes read or 0xffffffff file not found |
89 | ; ret ebx = bytes read or 0xffffffff file not found |
90 | ; eax = 0 ok read or other = errormsg |
90 | ; eax = 0 ok read or other = errormsg |
91 | ; |
91 | ; |
92 | ;-------------------------------------------------------------- |
92 | ;-------------------------------------------------------------- |
93 | fs_CdRead: |
93 | fs_CdRead: |
94 | push edi |
94 | push edi |
95 | cmp byte [esi], 0 |
95 | cmp byte [esi], 0 |
96 | jnz @f |
96 | jnz @f |
97 | .noaccess: |
97 | .noaccess: |
98 | pop edi |
98 | pop edi |
99 | .noaccess_2: |
99 | .noaccess_2: |
100 | or ebx, -1 |
100 | or ebx, -1 |
101 | mov eax, ERROR_ACCESS_DENIED |
101 | mov eax, ERROR_ACCESS_DENIED |
102 | ret |
102 | ret |
103 | 103 | ||
104 | .noaccess_3: |
104 | .noaccess_3: |
105 | pop eax edx ecx edi |
105 | pop eax edx ecx edi |
106 | jmp .noaccess_2 |
106 | jmp .noaccess_2 |
107 | 107 | ||
108 | @@: |
108 | @@: |
109 | call cd_find_lfn |
109 | call cd_find_lfn |
110 | jnc .found |
110 | jnc .found |
111 | pop edi |
111 | pop edi |
112 | cmp [DevErrorCode],0 |
112 | cmp [DevErrorCode],0 |
113 | jne .noaccess_2 |
113 | jne .noaccess_2 |
114 | or ebx, -1 |
114 | or ebx, -1 |
115 | mov eax, ERROR_FILE_NOT_FOUND |
115 | mov eax, ERROR_FILE_NOT_FOUND |
116 | ret |
116 | ret |
117 | 117 | ||
118 | .found: |
118 | .found: |
119 | mov edi,[cd_current_pointer_of_input] |
119 | mov edi,[cd_current_pointer_of_input] |
120 | test byte [edi+25],10b ; do not allow read directories |
120 | test byte [edi+25],10b ; do not allow read directories |
121 | jnz .noaccess |
121 | jnz .noaccess |
122 | test ebx, ebx |
122 | test ebx, ebx |
123 | jz .l1 |
123 | jz .l1 |
124 | cmp dword [ebx+4], 0 |
124 | cmp dword [ebx+4], 0 |
125 | jz @f |
125 | jz @f |
126 | xor ebx, ebx |
126 | xor ebx, ebx |
127 | .reteof: |
127 | .reteof: |
128 | mov eax, 6 ; end of file |
128 | mov eax, 6 ; end of file |
129 | pop edi |
129 | pop edi |
130 | ret |
130 | ret |
131 | @@: |
131 | @@: |
132 | mov ebx, [ebx] |
132 | mov ebx, [ebx] |
133 | .l1: |
133 | .l1: |
134 | push ecx edx |
134 | push ecx edx |
135 | push 0 |
135 | push 0 |
136 | mov eax, [edi+10] ; ðåàëüíûé ðàçìåð ôàéëîâîé ñåêöèè |
136 | mov eax, [edi+10] ; ðåàëüíûé ðàçìåð ôàéëîâîé ñåêöèè |
137 | sub eax, ebx |
137 | sub eax, ebx |
138 | jb .eof |
138 | jb .eof |
139 | cmp eax, ecx |
139 | cmp eax, ecx |
140 | jae @f |
140 | jae @f |
141 | mov ecx, eax |
141 | mov ecx, eax |
142 | mov byte [esp], 6 |
142 | mov byte [esp], 6 |
143 | @@: |
143 | @@: |
144 | mov eax,[edi+2] |
144 | mov eax,[edi+2] |
145 | mov [CDSectorAddress],eax |
145 | mov [CDSectorAddress],eax |
146 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
146 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
147 | .new_sector: |
147 | .new_sector: |
148 | test ecx, ecx |
148 | test ecx, ecx |
149 | jz .done |
149 | jz .done |
150 | sub ebx, 2048 |
150 | sub ebx, 2048 |
151 | jae .next |
151 | jae .next |
152 | add ebx, 2048 |
152 | add ebx, 2048 |
153 | jnz .incomplete_sector |
153 | jnz .incomplete_sector |
154 | cmp ecx, 2048 |
154 | cmp ecx, 2048 |
155 | jb .incomplete_sector |
155 | jb .incomplete_sector |
156 | ; we may read and memmove complete sector |
156 | ; we may read and memmove complete sector |
157 | mov [CDDataBuf_pointer],edx |
157 | mov [CDDataBuf_pointer],edx |
158 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
158 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
159 | cmp [DevErrorCode],0 |
159 | cmp [DevErrorCode],0 |
160 | jne .noaccess_3 |
160 | jne .noaccess_3 |
161 | add edx, 2048 |
161 | add edx, 2048 |
162 | sub ecx, 2048 |
162 | sub ecx, 2048 |
163 | .next: |
163 | .next: |
164 | inc dword [CDSectorAddress] |
164 | inc dword [CDSectorAddress] |
165 | jmp .new_sector |
165 | jmp .new_sector |
166 | .incomplete_sector: |
166 | .incomplete_sector: |
167 | ; we must read and memmove incomplete sector |
167 | ; we must read and memmove incomplete sector |
168 | mov [CDDataBuf_pointer],CDDataBuf |
168 | mov [CDDataBuf_pointer],CDDataBuf |
169 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
169 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
170 | cmp [DevErrorCode],0 |
170 | cmp [DevErrorCode],0 |
171 | jne .noaccess_3 |
171 | jne .noaccess_3 |
172 | push ecx |
172 | push ecx |
173 | add ecx, ebx |
173 | add ecx, ebx |
174 | cmp ecx, 2048 |
174 | cmp ecx, 2048 |
175 | jbe @f |
175 | jbe @f |
176 | mov ecx, 2048 |
176 | mov ecx, 2048 |
177 | @@: |
177 | @@: |
178 | sub ecx, ebx |
178 | sub ecx, ebx |
179 | push edi esi ecx |
179 | push edi esi ecx |
180 | mov edi,edx |
180 | mov edi,edx |
181 | lea esi, [CDDataBuf + ebx] |
181 | lea esi, [CDDataBuf + ebx] |
182 | cld |
182 | cld |
183 | rep movsb |
183 | rep movsb |
184 | pop ecx esi edi |
184 | pop ecx esi edi |
185 | add edx, ecx |
185 | add edx, ecx |
186 | sub [esp], ecx |
186 | sub [esp], ecx |
187 | pop ecx |
187 | pop ecx |
188 | xor ebx, ebx |
188 | xor ebx, ebx |
189 | jmp .next |
189 | jmp .next |
190 | 190 | ||
191 | .done: |
191 | .done: |
192 | mov ebx, edx |
192 | mov ebx, edx |
193 | pop eax edx ecx edi |
193 | pop eax edx ecx edi |
194 | sub ebx, edx |
194 | sub ebx, edx |
195 | ret |
195 | ret |
196 | .eof: |
196 | .eof: |
197 | mov ebx, edx |
197 | mov ebx, edx |
198 | pop eax edx ecx |
198 | pop eax edx ecx |
199 | sub ebx, edx |
199 | sub ebx, edx |
200 | jmp .reteof |
200 | jmp .reteof |
201 | 201 | ||
202 | ;---------------------------------------------------------------- |
202 | ;---------------------------------------------------------------- |
203 | ; |
203 | ; |
204 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
204 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
205 | ; |
205 | ; |
206 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
206 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
207 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
207 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
208 | ; & flags (bitfields) |
208 | ; & flags (bitfields) |
209 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
209 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
210 | ; ecx number of blocks to read, 0+ |
210 | ; ecx number of blocks to read, 0+ |
211 | ; edx mem location to return data |
211 | ; edx mem location to return data |
212 | ; |
212 | ; |
213 | ; ret ebx = blocks read or 0xffffffff folder not found |
213 | ; ret ebx = blocks read or 0xffffffff folder not found |
214 | ; eax = 0 ok read or other = errormsg |
214 | ; eax = 0 ok read or other = errormsg |
215 | ; |
215 | ; |
216 | ;-------------------------------------------------------------- |
216 | ;-------------------------------------------------------------- |
217 | fs_CdReadFolder: |
217 | fs_CdReadFolder: |
218 | push edi |
218 | push edi |
219 | call cd_find_lfn |
219 | call cd_find_lfn |
220 | jnc .found |
220 | jnc .found |
221 | pop edi |
221 | pop edi |
222 | cmp [DevErrorCode], 0 |
222 | cmp [DevErrorCode], 0 |
223 | jne .noaccess_1 |
223 | jne .noaccess_1 |
224 | or ebx, -1 |
224 | or ebx, -1 |
225 | mov eax, ERROR_FILE_NOT_FOUND |
225 | mov eax, ERROR_FILE_NOT_FOUND |
226 | ret |
226 | ret |
227 | .found: |
227 | .found: |
228 | mov edi, [cd_current_pointer_of_input] |
228 | mov edi, [cd_current_pointer_of_input] |
229 | test byte [edi+25], 10b ; do not allow read directories |
229 | test byte [edi+25], 10b ; do not allow read directories |
230 | jnz .found_dir |
230 | jnz .found_dir |
231 | pop edi |
231 | pop edi |
232 | .noaccess_1: |
232 | .noaccess_1: |
233 | or ebx, -1 |
233 | or ebx, -1 |
234 | mov eax, ERROR_ACCESS_DENIED |
234 | mov eax, ERROR_ACCESS_DENIED |
235 | ret |
235 | ret |
236 | .found_dir: |
236 | .found_dir: |
237 | mov eax, [edi+2] ; eax=cluster |
237 | mov eax, [edi+2] ; eax=cluster |
238 | mov [CDSectorAddress], eax |
238 | mov [CDSectorAddress], eax |
239 | mov eax, [edi+10] ; ðàçìåð äèðåêòðîðèè |
239 | mov eax, [edi+10] ; ðàçìåð äèðåêòðîðèè |
240 | .doit: |
240 | .doit: |
241 | ; init header |
241 | ; init header |
242 | push eax ecx |
242 | push eax ecx |
243 | mov edi, edx |
243 | mov edi, edx |
244 | mov ecx, 32/4 |
244 | mov ecx, 32/4 |
245 | xor eax, eax |
245 | xor eax, eax |
246 | rep stosd |
246 | rep stosd |
247 | pop ecx eax |
247 | pop ecx eax |
248 | mov byte [edx], 1 ; version |
248 | mov byte [edx], 1 ; version |
249 | mov [cd_mem_location], edx |
249 | mov [cd_mem_location], edx |
250 | add [cd_mem_location], 32 |
250 | add [cd_mem_location], 32 |
251 | ; íà÷èíàåì ïåðåáðîñêó ÁÄÂÊ â ÓÑÂÊ |
251 | ; íà÷èíàåì ïåðåáðîñêó ÁÄÂÊ â ÓÑÂÊ |
252 | ;.mainloop: |
252 | ;.mainloop: |
253 | mov [cd_counter_block], dword 0 |
253 | mov [cd_counter_block], dword 0 |
254 | dec dword [CDSectorAddress] |
254 | dec dword [CDSectorAddress] |
255 | push ecx |
255 | push ecx |
256 | .read_to_buffer: |
256 | .read_to_buffer: |
257 | inc dword [CDSectorAddress] |
257 | inc dword [CDSectorAddress] |
258 | mov [CDDataBuf_pointer], CDDataBuf |
258 | mov [CDDataBuf_pointer], CDDataBuf |
259 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
259 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
260 | cmp [DevErrorCode], 0 |
260 | cmp [DevErrorCode], 0 |
261 | jne .noaccess_1 |
261 | jne .noaccess_1 |
262 | call .get_names_from_buffer |
262 | call .get_names_from_buffer |
263 | sub eax,2048 |
263 | sub eax,2048 |
264 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
264 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
265 | ja .read_to_buffer |
265 | ja .read_to_buffer |
266 | mov edi, [cd_counter_block] |
266 | mov edi, [cd_counter_block] |
267 | mov [edx+8], edi |
267 | mov [edx+8], edi |
268 | mov edi, [ebx] |
268 | mov edi, [ebx] |
269 | sub [edx+4], edi |
269 | sub [edx+4], edi |
270 | xor eax, eax |
270 | xor eax, eax |
271 | dec ecx |
271 | dec ecx |
272 | js @f |
272 | js @f |
273 | mov al, ERROR_END_OF_FILE |
273 | mov al, ERROR_END_OF_FILE |
274 | @@: |
274 | @@: |
275 | pop ecx edi |
275 | pop ecx edi |
276 | mov ebx, [edx+4] |
276 | mov ebx, [edx+4] |
277 | ret |
277 | ret |
278 | 278 | ||
279 | .get_names_from_buffer: |
279 | .get_names_from_buffer: |
280 | mov [cd_current_pointer_of_input_2],CDDataBuf |
280 | mov [cd_current_pointer_of_input_2],CDDataBuf |
281 | push eax esi edi edx |
281 | push eax esi edi edx |
282 | .get_names_from_buffer_1: |
282 | .get_names_from_buffer_1: |
283 | call cd_get_name |
283 | call cd_get_name |
284 | jc .end_buffer |
284 | jc .end_buffer |
285 | inc dword [cd_counter_block] |
285 | inc dword [cd_counter_block] |
286 | mov eax,[cd_counter_block] |
286 | mov eax,[cd_counter_block] |
287 | cmp [ebx],eax |
287 | cmp [ebx],eax |
288 | jae .get_names_from_buffer_1 |
288 | jae .get_names_from_buffer_1 |
289 | test ecx, ecx |
289 | test ecx, ecx |
290 | jz .get_names_from_buffer_1 |
290 | jz .get_names_from_buffer_1 |
291 | mov edi,[cd_counter_block] |
291 | mov edi,[cd_counter_block] |
292 | mov [edx+4],edi |
292 | mov [edx+4],edi |
293 | dec ecx |
293 | dec ecx |
294 | mov esi,ebp |
294 | mov esi,ebp |
295 | mov edi,[cd_mem_location] |
295 | mov edi,[cd_mem_location] |
296 | add edi,40 |
296 | add edi,40 |
297 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
297 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
298 | jnz .unicode |
298 | jnz .unicode |
299 | ; jmp .unicode |
299 | ; jmp .unicode |
300 | .ansi: |
300 | .ansi: |
301 | cmp [cd_counter_block],2 |
301 | cmp [cd_counter_block],2 |
302 | jbe .ansi_parent_directory |
302 | jbe .ansi_parent_directory |
303 | cld |
303 | cld |
304 | lodsw |
304 | lodsw |
305 | xchg ah,al |
305 | xchg ah,al |
306 | call uni2ansi_char |
306 | call uni2ansi_char |
307 | cld |
307 | cld |
308 | stosb |
308 | stosb |
309 | ; ïðîâåðêà êîíöà ôàéëà |
309 | ; ïðîâåðêà êîíöà ôàéëà |
310 | mov ax,[esi] |
310 | mov ax,[esi] |
311 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
311 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
312 | je .cd_get_parameters_of_file_1 |
312 | je .cd_get_parameters_of_file_1 |
313 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
313 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
314 | movzx eax,byte [ebp-33] |
314 | movzx eax,byte [ebp-33] |
315 | add eax,ebp |
315 | add eax,ebp |
316 | sub eax,34 |
316 | sub eax,34 |
317 | cmp esi,eax |
317 | cmp esi,eax |
318 | je .cd_get_parameters_of_file_1 |
318 | je .cd_get_parameters_of_file_1 |
319 | ; ïðîâåðêà êîíöà ïàïêè |
319 | ; ïðîâåðêà êîíöà ïàïêè |
320 | movzx eax,byte [ebp-1] |
320 | movzx eax,byte [ebp-1] |
321 | add eax,ebp |
321 | add eax,ebp |
322 | cmp esi,eax |
322 | cmp esi,eax |
323 | jb .ansi |
323 | jb .ansi |
324 | .cd_get_parameters_of_file_1: |
324 | .cd_get_parameters_of_file_1: |
325 | mov [edi],byte 0 |
325 | mov [edi],byte 0 |
326 | call cd_get_parameters_of_file |
326 | call cd_get_parameters_of_file |
327 | add [cd_mem_location],304 |
327 | add [cd_mem_location],304 |
328 | jmp .get_names_from_buffer_1 |
328 | jmp .get_names_from_buffer_1 |
329 | 329 | ||
330 | .ansi_parent_directory: |
330 | .ansi_parent_directory: |
331 | cmp [cd_counter_block],2 |
331 | cmp [cd_counter_block],2 |
332 | je @f |
332 | je @f |
333 | mov [edi],byte '.' |
333 | mov [edi],byte '.' |
334 | inc edi |
334 | inc edi |
335 | jmp .cd_get_parameters_of_file_1 |
335 | jmp .cd_get_parameters_of_file_1 |
336 | @@: |
336 | @@: |
337 | mov [edi],word '..' |
337 | mov [edi],word '..' |
338 | add edi,2 |
338 | add edi,2 |
339 | jmp .cd_get_parameters_of_file_1 |
339 | jmp .cd_get_parameters_of_file_1 |
340 | 340 | ||
341 | .unicode: |
341 | .unicode: |
342 | cmp [cd_counter_block],2 |
342 | cmp [cd_counter_block],2 |
343 | jbe .unicode_parent_directory |
343 | jbe .unicode_parent_directory |
344 | cld |
344 | cld |
345 | movsw |
345 | movsw |
346 | ; ïðîâåðêà êîíöà ôàéëà |
346 | ; ïðîâåðêà êîíöà ôàéëà |
347 | mov ax,[esi] |
347 | mov ax,[esi] |
348 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
348 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
349 | je .cd_get_parameters_of_file_2 |
349 | je .cd_get_parameters_of_file_2 |
350 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
350 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
351 | movzx eax,byte [ebp-33] |
351 | movzx eax,byte [ebp-33] |
352 | add eax,ebp |
352 | add eax,ebp |
353 | sub eax,34 |
353 | sub eax,34 |
354 | cmp esi,eax |
354 | cmp esi,eax |
355 | je .cd_get_parameters_of_file_2 |
355 | je .cd_get_parameters_of_file_2 |
356 | ; ïðîâåðêà êîíöà ïàïêè |
356 | ; ïðîâåðêà êîíöà ïàïêè |
357 | movzx eax,byte [ebp-1] |
357 | movzx eax,byte [ebp-1] |
358 | add eax,ebp |
358 | add eax,ebp |
359 | cmp esi,eax |
359 | cmp esi,eax |
360 | jb .unicode |
360 | jb .unicode |
361 | .cd_get_parameters_of_file_2: |
361 | .cd_get_parameters_of_file_2: |
362 | mov [edi],word 0 |
362 | mov [edi],word 0 |
363 | call cd_get_parameters_of_file |
363 | call cd_get_parameters_of_file |
364 | add [cd_mem_location],560 |
364 | add [cd_mem_location],560 |
365 | jmp .get_names_from_buffer_1 |
365 | jmp .get_names_from_buffer_1 |
366 | 366 | ||
367 | .unicode_parent_directory: |
367 | .unicode_parent_directory: |
368 | cmp [cd_counter_block],2 |
368 | cmp [cd_counter_block],2 |
369 | je @f |
369 | je @f |
370 | mov [edi],word 2E00h ; '.' |
370 | mov [edi],word 2E00h ; '.' |
371 | add edi,2 |
371 | add edi,2 |
372 | jmp .cd_get_parameters_of_file_2 |
372 | jmp .cd_get_parameters_of_file_2 |
373 | @@: |
373 | @@: |
374 | mov [edi],dword 2E002E00h ; '..' |
374 | mov [edi],dword 2E002E00h ; '..' |
375 | add edi,4 |
375 | add edi,4 |
376 | jmp .cd_get_parameters_of_file_2 |
376 | jmp .cd_get_parameters_of_file_2 |
377 | 377 | ||
378 | .end_buffer: |
378 | .end_buffer: |
379 | pop edx edi esi eax |
379 | pop edx edi esi eax |
380 | ret |
380 | ret |
381 | 381 | ||
382 | cd_get_parameters_of_file: |
382 | cd_get_parameters_of_file: |
383 | mov edi,[cd_mem_location] |
383 | mov edi,[cd_mem_location] |
384 | cd_get_parameters_of_file_1: |
384 | cd_get_parameters_of_file_1: |
385 | ; ïîëó÷àåì àòðèáóòû ôàéëà |
385 | ; ïîëó÷àåì àòðèáóòû ôàéëà |
386 | xor eax,eax |
386 | xor eax,eax |
387 | ; ôàéë íå àðõèâèðîâàëñ |
387 | ; ôàéë íå àðõèâèðîâàëñ |
388 | inc al |
388 | inc al |
389 | shl eax,1 |
389 | shl eax,1 |
390 | ; ýòî êàòàëîã? |
390 | ; ýòî êàòàëîã? |
391 | test [ebp-8],byte 2 |
391 | test [ebp-8],byte 2 |
392 | jz .file |
392 | jz .file |
393 | inc al |
393 | inc al |
394 | .file: |
394 | .file: |
395 | ; ìåòêà òîìà íå êàê â FAT, â ýòîì âèäå îòñóòñâóåò |
395 | ; ìåòêà òîìà íå êàê â FAT, â ýòîì âèäå îòñóòñâóåò |
396 | ; ôàéë íå ÿâëÿåòñÿ ñèñòåìíûì |
396 | ; ôàéë íå ÿâëÿåòñÿ ñèñòåìíûì |
397 | shl eax,3 |
397 | shl eax,3 |
398 | ; ôàéë ÿâëÿåòñÿ ñêðûòûì? (àòðèáóò ñóùåñòâîâàíèå) |
398 | ; ôàéë ÿâëÿåòñÿ ñêðûòûì? (àòðèáóò ñóùåñòâîâàíèå) |
399 | test [ebp-8],byte 1 |
399 | test [ebp-8],byte 1 |
400 | jz .hidden |
400 | jz .hidden |
401 | inc al |
401 | inc al |
402 | .hidden: |
402 | .hidden: |
403 | shl eax,1 |
403 | shl eax,1 |
404 | ; ôàéë âñåãäà òîëüêî äëÿ ÷òåíèÿ, òàê êàê ýòî CD |
404 | ; ôàéë âñåãäà òîëüêî äëÿ ÷òåíèÿ, òàê êàê ýòî CD |
405 | inc al |
405 | inc al |
406 | mov [edi],eax |
406 | mov [edi],eax |
407 | ; ïîëó÷àåì âðåìÿ äëÿ ôàéëà |
407 | ; ïîëó÷àåì âðåìÿ äëÿ ôàéëà |
408 | ;÷àñ |
408 | ;÷àñ |
409 | movzx eax,byte [ebp-12] |
409 | movzx eax,byte [ebp-12] |
410 | shl eax,8 |
410 | shl eax,8 |
411 | ;ìèíóòà |
411 | ;ìèíóòà |
412 | mov al,[ebp-11] |
412 | mov al,[ebp-11] |
413 | shl eax,8 |
413 | shl eax,8 |
414 | ;ñåêóíäà |
414 | ;ñåêóíäà |
415 | mov al,[ebp-10] |
415 | mov al,[ebp-10] |
416 | ;âðåìÿ ñîçäàíèÿ ôàéëà |
416 | ;âðåìÿ ñîçäàíèÿ ôàéëà |
417 | mov [edi+8],eax |
417 | mov [edi+8],eax |
418 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
418 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
419 | mov [edi+16],eax |
419 | mov [edi+16],eax |
420 | ;âðåìÿ ïîñëåäíåé çàïèñè |
420 | ;âðåìÿ ïîñëåäíåé çàïèñè |
421 | mov [edi+24],eax |
421 | mov [edi+24],eax |
422 | ; ïîëó÷àåì äàòó äëÿ ôàéëà |
422 | ; ïîëó÷àåì äàòó äëÿ ôàéëà |
423 | ;ãîä |
423 | ;ãîä |
424 | movzx eax,byte [ebp-15] |
424 | movzx eax,byte [ebp-15] |
425 | add eax,1900 |
425 | add eax,1900 |
426 | shl eax,8 |
426 | shl eax,8 |
427 | ;ìåñÿö |
427 | ;ìåñÿö |
428 | mov al,[ebp-14] |
428 | mov al,[ebp-14] |
429 | shl eax,8 |
429 | shl eax,8 |
430 | ;äåíü |
430 | ;äåíü |
431 | mov al,[ebp-13] |
431 | mov al,[ebp-13] |
432 | ;äàòà ñîçäàíèÿ ôàéëà |
432 | ;äàòà ñîçäàíèÿ ôàéëà |
433 | mov [edi+12],eax |
433 | mov [edi+12],eax |
434 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
434 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
435 | mov [edi+20],eax |
435 | mov [edi+20],eax |
436 | ;âðåìÿ ïîñëåäíåé çàïèñè |
436 | ;âðåìÿ ïîñëåäíåé çàïèñè |
437 | mov [edi+28],eax |
437 | mov [edi+28],eax |
438 | ; ïîëó÷àåì òèï äàííûõ èìåíè |
438 | ; ïîëó÷àåì òèï äàííûõ èìåíè |
439 | xor eax,eax |
439 | xor eax,eax |
440 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
440 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
441 | jnz .unicode_1 |
441 | jnz .unicode_1 |
442 | mov [edi+4],eax |
442 | mov [edi+4],eax |
443 | jmp @f |
443 | jmp @f |
444 | .unicode_1: |
444 | .unicode_1: |
445 | inc eax |
445 | inc eax |
446 | mov [edi+4],eax |
446 | mov [edi+4],eax |
447 | @@: |
447 | @@: |
448 | ; ïîëó÷àåì ðàçìåð ôàéëà â áàéòàõ |
448 | ; ïîëó÷àåì ðàçìåð ôàéëà â áàéòàõ |
449 | xor eax,eax |
449 | xor eax,eax |
450 | mov [edi+32+4],eax |
450 | mov [edi+32+4],eax |
451 | mov eax,[ebp-23] |
451 | mov eax,[ebp-23] |
452 | mov [edi+32],eax |
452 | mov [edi+32],eax |
453 | ret |
453 | ret |
454 | 454 | ||
455 | ;---------------------------------------------------------------- |
455 | ;---------------------------------------------------------------- |
456 | ; |
456 | ; |
457 | ; fs_CdGetFileInfo - LFN variant for CD |
457 | ; fs_CdGetFileInfo - LFN variant for CD |
458 | ; get file/directory attributes structure |
458 | ; get file/directory attributes structure |
459 | ; |
459 | ; |
460 | ;---------------------------------------------------------------- |
460 | ;---------------------------------------------------------------- |
461 | fs_CdGetFileInfo: |
461 | fs_CdGetFileInfo: |
462 | cmp byte [esi], 0 |
462 | cmp byte [esi], 0 |
463 | jnz @f |
463 | jnz @f |
464 | mov eax, 2 |
464 | mov eax, 2 |
465 | ret |
465 | ret |
466 | @@: |
466 | @@: |
467 | push edi ebp |
467 | push edi ebp |
468 | call cd_find_lfn |
468 | call cd_find_lfn |
469 | pushfd |
469 | pushfd |
470 | cmp [DevErrorCode], 0 |
470 | cmp [DevErrorCode], 0 |
471 | jz @f |
471 | jz @f |
472 | popfd |
472 | popfd |
473 | pop ebp edi |
473 | pop ebp edi |
474 | mov eax, 11 |
474 | mov eax, 11 |
475 | ret |
475 | ret |
476 | @@: |
476 | @@: |
477 | popfd |
477 | popfd |
478 | jnc @f |
478 | jnc @f |
479 | pop ebp edi |
479 | pop ebp edi |
480 | mov eax, ERROR_FILE_NOT_FOUND |
480 | mov eax, ERROR_FILE_NOT_FOUND |
481 | ret |
481 | ret |
482 | @@: |
482 | @@: |
483 | 483 | ||
484 | mov edi, edx |
484 | mov edi, edx |
485 | call cd_get_parameters_of_file_1 |
485 | call cd_get_parameters_of_file_1 |
486 | and dword [edi+4], 0 |
486 | and dword [edi+4], 0 |
487 | pop ebp edi |
487 | pop ebp edi |
488 | xor eax, eax |
488 | xor eax, eax |
489 | ret |
489 | ret |
490 | - | ||
491 | ;---------------------------------------------------------------- |
- | |
492 | ; |
- | |
493 | ; fs_CdExecute - LFN variant for executing from CD |
- | |
494 | ; |
- | |
495 | ; esi points to hd filename (e.g. 'dir1/name') |
- | |
496 | ; ebp points to full filename (e.g. '/hd0/1/dir1/name') |
- | |
497 | ; dword [ebx] = flags |
- | |
498 | ; dword [ebx+4] = cmdline |
- | |
499 | ; |
- | |
500 | ; ret ebx,edx destroyed |
- | |
501 | ; eax > 0 - PID, < 0 - error |
- | |
502 | ; |
- | |
503 | ;-------------------------------------------------------------- |
- | |
504 | fs_CdExecute: |
- | |
505 | mov edx, [ebx] |
- | |
506 | mov ebx, [ebx+4] |
- | |
507 | test ebx, ebx |
- | |
508 | jz @f |
- | |
509 | ; add ebx, std_application_base_address |
- | |
510 | @@: |
- | |
511 | - | ||
512 | ;---------------------------------------------------------------- |
- | |
513 | ; |
- | |
514 | ; fs_CdExecute.flags - second entry |
- | |
515 | ; |
- | |
516 | ; esi points to floppy filename (kernel address) |
- | |
517 | ; ebp points to full filename |
- | |
518 | ; edx flags |
- | |
519 | ; ebx cmdline (kernel address) |
- | |
520 | ; |
- | |
521 | ; ret eax > 0 - PID, < 0 - error |
- | |
522 | ; |
- | |
523 | ;-------------------------------------------------------------- |
- | |
524 | - | ||
525 | .flags: |
- | |
526 | cmp byte [esi], 0 |
- | |
527 | jnz @f |
- | |
528 | ; cannot execute root! |
- | |
529 | mov eax, -ERROR_ACCESS_DENIED |
- | |
530 | ret |
- | |
531 | @@: |
- | |
532 | push edi |
- | |
533 | call cd_find_lfn |
- | |
534 | jnc .found |
- | |
535 | pop edi |
- | |
536 | mov eax, -ERROR_FILE_NOT_FOUND |
- | |
537 | cmp [DevErrorCode], 0 |
- | |
538 | jz @f |
- | |
539 | mov al, -11 |
- | |
540 | @@: |
- | |
541 | ret |
- | |
542 | .found: |
- | |
543 | mov edi,[cd_current_pointer_of_input] |
- | |
544 | mov eax,[edi+2] |
- | |
545 | push 0 |
- | |
546 | push eax |
- | |
547 | push dword [edi+10] ; size |
- | |
548 | push .DoRead |
- | |
549 | call fs_execute |
- | |
550 | add esp, 16 |
- | |
551 | pop edi |
- | |
552 | ret |
- | |
553 | - | ||
554 | .DoRead: |
- | |
555 | ; read next block |
- | |
556 | ; in: eax->parameters, edi->buffer |
- | |
557 | ; out: eax = error code |
- | |
558 | pushad |
- | |
559 | cmp dword [eax], 0 ; file size |
- | |
560 | jz .eof |
- | |
561 | cmp [eax+8],dword 0 |
- | |
562 | jne @f |
- | |
563 | mov ecx,[eax+4] |
- | |
564 | inc dword [eax+4] |
- | |
565 | mov [CDSectorAddress],ecx |
- | |
566 | mov [CDDataBuf_pointer],CDDataBuf ;edi |
- | |
567 | call ReadCDWRetr |
- | |
568 | cmp [DevErrorCode], 0 |
- | |
569 | jnz .err |
- | |
570 | @@: |
- | |
571 | push esi edi ecx |
- | |
572 | mov esi,512 |
- | |
573 | imul esi,[eax+8] |
- | |
574 | add esi,CDDataBuf |
- | |
575 | mov ecx,512/4 |
- | |
576 | cld |
- | |
577 | rep movsd |
- | |
578 | pop ecx edi esi |
- | |
579 | - | ||
580 | mov eax, [esp+28] |
- | |
581 | mov ecx, [eax] |
- | |
582 | sub ecx, 512 |
- | |
583 | jae @f |
- | |
584 | lea edi, [edi+ecx+512] |
- | |
585 | neg ecx |
- | |
586 | push eax |
- | |
587 | xor eax, eax |
- | |
588 | rep stosb |
- | |
589 | pop eax |
- | |
590 | @@: |
- | |
591 | mov [eax], ecx |
- | |
592 | mov edx, [eax+8] |
- | |
593 | inc edx |
- | |
594 | cmp edx, 4 ; 2048/512=4 |
- | |
595 | jb @f |
- | |
596 | xor edx, edx |
- | |
597 | @@: |
- | |
598 | mov [eax+8], edx |
- | |
599 | popad |
- | |
600 | xor eax, eax |
- | |
601 | ret |
- | |
602 | .eof: |
- | |
603 | popad |
- | |
604 | mov eax, 6 |
- | |
605 | ret |
- | |
606 | .err: |
- | |
607 | popad |
- | |
608 | mov eax, 11 |
- | |
609 | ret |
- | |
610 | 490 | ||
611 | cd_find_lfn: |
491 | cd_find_lfn: |
612 | ; in: esi->name |
492 | ; in: esi+ebp -> name |
613 | ; out: CF=1 - file not found |
493 | ; out: CF=1 - file not found |
614 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
494 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
615 | push eax esi |
495 | push eax esi |
616 | ; 16 ñåêòîð íà÷àëî íàáîðà äåñêðèïòîðîâ òîìîâ |
496 | ; 16 ñåêòîð íà÷àëî íàáîðà äåñêðèïòîðîâ òîìîâ |
617 | mov [CDSectorAddress],dword 15 |
497 | mov [CDSectorAddress],dword 15 |
618 | .start: |
498 | .start: |
619 | inc dword [CDSectorAddress] |
499 | inc dword [CDSectorAddress] |
620 | mov [CDDataBuf_pointer],CDDataBuf |
500 | mov [CDDataBuf_pointer],CDDataBuf |
621 | call ReadCDWRetr |
501 | call ReadCDWRetr |
622 | cmp [DevErrorCode],0 |
502 | cmp [DevErrorCode],0 |
623 | jne .access_denied |
503 | jne .access_denied |
624 | ; ïðîâåðêà íà âøèâîñòü |
504 | ; ïðîâåðêà íà âøèâîñòü |
625 | cmp [CDDataBuf+1],dword 'CD00' |
505 | cmp [CDDataBuf+1],dword 'CD00' |
626 | jne .access_denied |
506 | jne .access_denied |
627 | cmp [CDDataBuf+5],byte '1' |
507 | cmp [CDDataBuf+5],byte '1' |
628 | jne .access_denied |
508 | jne .access_denied |
629 | ; ñåêòîð ÿâëÿåòñÿ òåðìèíàòîðîì íàáîð äåñêðèïòîðîâ òîìîâ? |
509 | ; ñåêòîð ÿâëÿåòñÿ òåðìèíàòîðîì íàáîð äåñêðèïòîðîâ òîìîâ? |
630 | cmp [CDDataBuf],byte 0xff |
510 | cmp [CDDataBuf],byte 0xff |
631 | je .access_denied |
511 | je .access_denied |
632 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì è óëó÷øåííûì äåñêðèïòîðîì òîìà? |
512 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì è óëó÷øåííûì äåñêðèïòîðîì òîìà? |
633 | cmp [CDDataBuf],byte 0x2 |
513 | cmp [CDDataBuf],byte 0x2 |
634 | jne .start |
514 | jne .start |
635 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì äåñêðèïòîðîì òîìà? |
515 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì äåñêðèïòîðîì òîìà? |
636 | cmp [CDDataBuf+6],byte 0x1 |
516 | cmp [CDDataBuf+6],byte 0x1 |
637 | jne .start |
517 | jne .start |
638 | ; ïàðàìåòðû root äèðåêòðîðèè |
518 | ; ïàðàìåòðû root äèðåêòðîðèè |
639 | mov eax,[CDDataBuf+0x9c+2] ; íà÷àëî root äèðåêòðîðèè |
519 | mov eax,[CDDataBuf+0x9c+2] ; íà÷àëî root äèðåêòðîðèè |
640 | mov [CDSectorAddress],eax |
520 | mov [CDSectorAddress],eax |
641 | mov eax,[CDDataBuf+0x9c+10] ; ðàçìåð root äèðåêòðîðèè |
521 | mov eax,[CDDataBuf+0x9c+10] ; ðàçìåð root äèðåêòðîðèè |
642 | cmp byte [esi], 0 |
522 | cmp byte [esi], 0 |
643 | jnz @f |
523 | jnz @f |
644 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
524 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
645 | jmp .done |
525 | jmp .done |
646 | @@: |
526 | @@: |
647 | ; íà÷èíàåì ïîèñê |
527 | ; íà÷èíàåì ïîèñê |
648 | .mainloop: |
528 | .mainloop: |
649 | dec dword [CDSectorAddress] |
529 | dec dword [CDSectorAddress] |
650 | .read_to_buffer: |
530 | .read_to_buffer: |
651 | inc dword [CDSectorAddress] |
531 | inc dword [CDSectorAddress] |
652 | mov [CDDataBuf_pointer],CDDataBuf |
532 | mov [CDDataBuf_pointer],CDDataBuf |
653 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
533 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
654 | cmp [DevErrorCode],0 |
534 | cmp [DevErrorCode],0 |
655 | jne .access_denied |
535 | jne .access_denied |
656 | call cd_find_name_in_buffer |
536 | call cd_find_name_in_buffer |
657 | jnc .found |
537 | jnc .found |
658 | sub eax,2048 |
538 | sub eax,2048 |
659 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
539 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
660 | cmp eax,0 |
540 | cmp eax,0 |
661 | ja .read_to_buffer |
541 | ja .read_to_buffer |
662 | ; íåò èñêîìîãî ýëåìåíòà öåïî÷êè |
542 | ; íåò èñêîìîãî ýëåìåíòà öåïî÷êè |
663 | .access_denied: |
543 | .access_denied: |
664 | pop esi eax |
544 | pop esi eax |
665 | stc |
545 | stc |
666 | ret |
546 | ret |
667 | ; èñêîìûé ýëåìåíò öåïî÷êè íàéäåí |
547 | ; èñêîìûé ýëåìåíò öåïî÷êè íàéäåí |
668 | .found: |
548 | .found: |
669 | ; êîíåö ïóòè ôàéëà |
549 | ; êîíåö ïóòè ôàéëà |
670 | cmp byte [esi-1], 0 |
550 | cmp byte [esi-1], 0 |
671 | jz .done |
551 | jz .done |
- | 552 | .nested: |
|
672 | mov eax,[cd_current_pointer_of_input] |
553 | mov eax,[cd_current_pointer_of_input] |
673 | push dword [eax+2] |
554 | push dword [eax+2] |
674 | pop dword [CDSectorAddress] ; íà÷àëî äèðåêòîðèè |
555 | pop dword [CDSectorAddress] ; íà÷àëî äèðåêòîðèè |
675 | mov eax,[eax+2+8] ; ðàçìåð äèðåêòîðèè |
556 | mov eax,[eax+2+8] ; ðàçìåð äèðåêòîðèè |
676 | jmp .mainloop |
557 | jmp .mainloop |
677 | ; óêàçàòåëü ôàéëà íàéäåí |
558 | ; óêàçàòåëü ôàéëà íàéäåí |
678 | .done: |
559 | .done: |
- | 560 | test ebp, ebp |
|
- | 561 | jz @f |
|
- | 562 | mov esi, ebp |
|
- | 563 | xor ebp, ebp |
|
- | 564 | jmp .nested |
|
- | 565 | @@: |
|
679 | pop esi eax |
566 | pop esi eax |
680 | clc |
567 | clc |
681 | ret |
568 | ret |
682 | 569 | ||
683 | cd_find_name_in_buffer: |
570 | cd_find_name_in_buffer: |
684 | mov [cd_current_pointer_of_input_2],CDDataBuf |
571 | mov [cd_current_pointer_of_input_2],CDDataBuf |
685 | .start: |
572 | .start: |
686 | call cd_get_name |
573 | call cd_get_name |
687 | jc .not_found |
574 | jc .not_found |
688 | call cd_compare_name |
575 | call cd_compare_name |
689 | jc .start |
576 | jc .start |
690 | .found: |
577 | .found: |
691 | clc |
578 | clc |
692 | ret |
579 | ret |
693 | .not_found: |
580 | .not_found: |
694 | stc |
581 | stc |
695 | ret |
582 | ret |
696 | 583 | ||
697 | cd_get_name: |
584 | cd_get_name: |
698 | push eax |
585 | push eax |
699 | mov ebp,[cd_current_pointer_of_input_2] |
586 | mov ebp,[cd_current_pointer_of_input_2] |
700 | mov [cd_current_pointer_of_input],ebp |
587 | mov [cd_current_pointer_of_input],ebp |
701 | mov eax,[ebp] |
588 | mov eax,[ebp] |
702 | cmp eax,0 ; âõîäû çàêîí÷èëèñü? |
589 | cmp eax,0 ; âõîäû çàêîí÷èëèñü? |
703 | je .next_sector |
590 | je .next_sector |
704 | cmp ebp,CDDataBuf+2048 ; áóôåð çàêîí÷èëñÿ? |
591 | cmp ebp,CDDataBuf+2048 ; áóôåð çàêîí÷èëñÿ? |
705 | jae .next_sector |
592 | jae .next_sector |
706 | movzx eax, byte [ebp] |
593 | movzx eax, byte [ebp] |
707 | add [cd_current_pointer_of_input_2],eax ; ñëåäóþùèé âõîä êàòàëîãà |
594 | add [cd_current_pointer_of_input_2],eax ; ñëåäóþùèé âõîä êàòàëîãà |
708 | add ebp,33 ; óêàçàòåëü óñòàíîâëåí íà íà÷àëî èìåíè |
595 | add ebp,33 ; óêàçàòåëü óñòàíîâëåí íà íà÷àëî èìåíè |
709 | pop eax |
596 | pop eax |
710 | clc |
597 | clc |
711 | ret |
598 | ret |
712 | .next_sector: |
599 | .next_sector: |
713 | pop eax |
600 | pop eax |
714 | stc |
601 | stc |
715 | ret |
602 | ret |
716 | 603 | ||
717 | cd_compare_name: |
604 | cd_compare_name: |
718 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
605 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
719 | ; in: esi->name, ebp->name |
606 | ; in: esi->name, ebp->name |
720 | ; out: if names match: ZF=1 and esi->next component of name |
607 | ; out: if names match: ZF=1 and esi->next component of name |
721 | ; else: ZF=0, esi is not changed |
608 | ; else: ZF=0, esi is not changed |
722 | ; destroys eax |
609 | ; destroys eax |
723 | push esi eax edi |
610 | push esi eax edi |
724 | mov edi,ebp |
611 | mov edi,ebp |
725 | .loop: |
612 | .loop: |
726 | cld |
613 | cld |
727 | lodsb |
614 | lodsb |
728 | push ax |
615 | push ax |
729 | call char_todown |
616 | call char_todown |
730 | call ansi2uni_char |
617 | call ansi2uni_char |
731 | xchg ah,al |
618 | xchg ah,al |
732 | cld |
619 | cld |
733 | scasw |
620 | scasw |
734 | pop ax |
621 | pop ax |
735 | je .coincides |
622 | je .coincides |
736 | call char_toupper |
623 | call char_toupper |
737 | call ansi2uni_char |
624 | call ansi2uni_char |
738 | xchg ah,al |
625 | xchg ah,al |
739 | cld |
626 | cld |
740 | sub edi,2 |
627 | sub edi,2 |
741 | scasw |
628 | scasw |
742 | jne .name_not_coincide |
629 | jne .name_not_coincide |
743 | .coincides: |
630 | .coincides: |
744 | cmp [esi],byte '/' ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
631 | cmp [esi],byte '/' ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
745 | je .done |
632 | je .done |
746 | cmp [esi],byte 0 ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
633 | cmp [esi],byte 0 ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
747 | je .done |
634 | je .done |
748 | jmp .loop |
635 | jmp .loop |
749 | .name_not_coincide: |
636 | .name_not_coincide: |
750 | pop edi eax esi |
637 | pop edi eax esi |
751 | stc |
638 | stc |
752 | ret |
639 | ret |
753 | .done: |
640 | .done: |
754 | ; ïðîâåðêà êîíöà ôàéëà |
641 | ; ïðîâåðêà êîíöà ôàéëà |
755 | cmp [edi],word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
642 | cmp [edi],word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
756 | je .done_1 |
643 | je .done_1 |
757 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
644 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
758 | movzx eax,byte [ebp-33] |
645 | movzx eax,byte [ebp-33] |
759 | add eax,ebp |
646 | add eax,ebp |
760 | sub eax,34 |
647 | sub eax,34 |
761 | cmp edi,eax |
648 | cmp edi,eax |
762 | je .done_1 |
649 | je .done_1 |
763 | ; ïðîâåðêà êîíöà ïàïêè |
650 | ; ïðîâåðêà êîíöà ïàïêè |
764 | movzx eax,byte [ebp-1] |
651 | movzx eax,byte [ebp-1] |
765 | add eax,ebp |
652 | add eax,ebp |
766 | cmp edi,eax |
653 | cmp edi,eax |
767 | jne .name_not_coincide |
654 | jne .name_not_coincide |
768 | .done_1: |
655 | .done_1: |
769 | pop edi eax |
656 | pop edi eax |
770 | add esp,4 |
657 | add esp,4 |
771 | inc esi |
658 | inc esi |
772 | clc |
659 | clc |
773 | ret |
660 | ret |
774 | 661 | ||
775 | char_todown: |
662 | char_todown: |
776 | ; convert character to uppercase, using cp866 encoding |
663 | ; convert character to uppercase, using cp866 encoding |
777 | ; in: al=symbol |
664 | ; in: al=symbol |
778 | ; out: al=converted symbol |
665 | ; out: al=converted symbol |
779 | cmp al, 'A' |
666 | cmp al, 'A' |
780 | jb .ret |
667 | jb .ret |
781 | cmp al, 'Z' |
668 | cmp al, 'Z' |
782 | jbe .az |
669 | jbe .az |
783 | cmp al, '' |
670 | cmp al, '' |
784 | jb .ret |
671 | jb .ret |
785 | cmp al, '' |
672 | cmp al, '' |
786 | jb .rus1 |
673 | jb .rus1 |
787 | cmp al, '' |
674 | cmp al, '' |
788 | ja .ret |
675 | ja .ret |
789 | ; 0x90-0x9F -> 0xE0-0xEF |
676 | ; 0x90-0x9F -> 0xE0-0xEF |
790 | add al, 'à'-'' |
677 | add al, 'à'-'' |
791 | .ret: |
678 | .ret: |
792 | ret |
679 | ret |
793 | .rus1: |
680 | .rus1: |
794 | ; 0x80-0x8F -> 0xA0-0xAF |
681 | ; 0x80-0x8F -> 0xA0-0xAF |
795 | .az: |
682 | .az: |
796 | add al, 0x20 |
683 | add al, 0x20 |
797 | ret |
684 | ret |
798 | 685 | ||
799 | uni2ansi_char: |
686 | uni2ansi_char: |
800 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
687 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
801 | ; in: ax=UNICODE character |
688 | ; in: ax=UNICODE character |
802 | ; out: al=converted ANSI character |
689 | ; out: al=converted ANSI character |
803 | cmp ax, 0x80 |
690 | cmp ax, 0x80 |
804 | jb .ascii |
691 | jb .ascii |
805 | cmp ax, 0x401 |
692 | cmp ax, 0x401 |
806 | jz .yo1 |
693 | jz .yo1 |
807 | cmp ax, 0x451 |
694 | cmp ax, 0x451 |
808 | jz .yo2 |
695 | jz .yo2 |
809 | cmp ax, 0x410 |
696 | cmp ax, 0x410 |
810 | jb .unk |
697 | jb .unk |
811 | cmp ax, 0x440 |
698 | cmp ax, 0x440 |
812 | jb .rus1 |
699 | jb .rus1 |
813 | cmp ax, 0x450 |
700 | cmp ax, 0x450 |
814 | jb .rus2 |
701 | jb .rus2 |
815 | .unk: |
702 | .unk: |
816 | mov al, '_' |
703 | mov al, '_' |
817 | jmp .doit |
704 | jmp .doit |
818 | .yo1: |
705 | .yo1: |
819 | mov al, 'ð' |
706 | mov al, 'ð' |
820 | jmp .doit |
707 | jmp .doit |
821 | .yo2: |
708 | .yo2: |
822 | mov al, 'ñ' |
709 | mov al, 'ñ' |
823 | jmp .doit |
710 | jmp .doit |
824 | .rus1: |
711 | .rus1: |
825 | ; 0x410-0x43F -> 0x80-0xAF |
712 | ; 0x410-0x43F -> 0x80-0xAF |
826 | add al, 0x70 |
713 | add al, 0x70 |
827 | jmp .doit |
714 | jmp .doit |
828 | .rus2: |
715 | .rus2: |
829 | ; 0x440-0x44F -> 0xE0-0xEF |
716 | ; 0x440-0x44F -> 0xE0-0xEF |
830 | add al, 0xA0 |
717 | add al, 0xA0 |
831 | .ascii: |
718 | .ascii: |
832 | .doit: |
719 | .doit: |
833 | ret>> |
720 | ret |