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Rev 150 | Rev 154 | ||
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1 | uglobal |
1 | uglobal |
2 | cd_current_pointer_of_input dd 0 |
2 | cd_current_pointer_of_input dd 0 |
3 | cd_current_pointer_of_input_2 dd 0 |
3 | cd_current_pointer_of_input_2 dd 0 |
4 | cd_mem_location dd 0 |
4 | cd_mem_location dd 0 |
5 | cd_counter_block dd 0 |
5 | cd_counter_block dd 0 |
6 | IDE_Channel_1 db 0 |
6 | IDE_Channel_1 db 0 |
7 | IDE_Channel_2 db 0 |
7 | IDE_Channel_2 db 0 |
8 | endg |
8 | endg |
9 | 9 | ||
10 | CDDataBuf equ 0x7000 |
10 | CDDataBuf equ 0x7000 |
11 | 11 | ||
12 | reserve_cd: |
12 | reserve_cd: |
13 | 13 | ||
14 | cli |
14 | cli |
15 | cmp [cd_status],0 |
15 | cmp [cd_status],0 |
16 | je reserve_ok2 |
16 | je reserve_ok2 |
17 | 17 | ||
18 | sti |
18 | sti |
19 | call change_task |
19 | call change_task |
20 | jmp reserve_cd |
20 | jmp reserve_cd |
21 | 21 | ||
22 | reserve_ok2: |
22 | reserve_ok2: |
23 | 23 | ||
24 | push eax |
24 | push eax |
25 | mov eax,[0x3000] |
25 | mov eax,[0x3000] |
26 | shl eax,5 |
26 | shl eax,5 |
27 | mov eax,[eax+0x3000+TASKDATA.pid] |
27 | mov eax,[eax+0x3000+TASKDATA.pid] |
28 | mov [cd_status],eax |
28 | mov [cd_status],eax |
29 | pop eax |
29 | pop eax |
30 | sti |
30 | sti |
31 | ret |
31 | ret |
32 | 32 | ||
33 | reserve_cd_channel: |
33 | reserve_cd_channel: |
34 | cmp [ChannelNumber],1 |
34 | cmp [ChannelNumber],1 |
35 | jne .IDE_Channel_2 |
35 | jne .IDE_Channel_2 |
36 | .IDE_Channel_1: |
36 | .IDE_Channel_1: |
37 | cli |
37 | cli |
38 | cmp [IDE_Channel_1],0 |
38 | cmp [IDE_Channel_1],0 |
39 | je .reserve_ok_1 |
39 | je .reserve_ok_1 |
40 | sti |
40 | sti |
41 | call change_task |
41 | call change_task |
42 | jmp .IDE_Channel_1 |
42 | jmp .IDE_Channel_1 |
43 | .IDE_Channel_2: |
43 | .IDE_Channel_2: |
44 | cli |
44 | cli |
45 | cmp [IDE_Channel_2],0 |
45 | cmp [IDE_Channel_2],0 |
46 | je .reserve_ok_2 |
46 | je .reserve_ok_2 |
47 | sti |
47 | sti |
48 | call change_task |
48 | call change_task |
49 | jmp .IDE_Channel_1 |
49 | jmp .IDE_Channel_1 |
50 | .reserve_ok_1: |
50 | .reserve_ok_1: |
51 | mov [IDE_Channel_1],1 |
51 | mov [IDE_Channel_1],1 |
52 | ret |
52 | ret |
53 | .reserve_ok_2: |
53 | .reserve_ok_2: |
54 | mov [IDE_Channel_2],1 |
54 | mov [IDE_Channel_2],1 |
55 | ret |
55 | ret |
56 | 56 | ||
57 | free_cd_channel: |
57 | free_cd_channel: |
58 | cmp [ChannelNumber],1 |
58 | cmp [ChannelNumber],1 |
59 | jne .IDE_Channel_2 |
59 | jne .IDE_Channel_2 |
60 | .IDE_Channel_1: |
60 | .IDE_Channel_1: |
61 | mov [IDE_Channel_1],0 |
61 | mov [IDE_Channel_1],0 |
62 | ret |
62 | ret |
63 | .IDE_Channel_2: |
63 | .IDE_Channel_2: |
64 | mov [IDE_Channel_2],0 |
64 | mov [IDE_Channel_2],0 |
65 | ret |
65 | ret |
66 | 66 | ||
67 | cd_status dd 0 |
67 | cd_status dd 0 |
68 | 68 | ||
69 | ;---------------------------------------------------------------- |
69 | ;---------------------------------------------------------------- |
70 | ; |
70 | ; |
71 | ; fs_CdRead - LFN variant for reading CD disk |
71 | ; fs_CdRead - LFN variant for reading CD disk |
72 | ; |
72 | ; |
73 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
73 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
74 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
74 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
75 | ; may be ebx=0 - start from first byte |
75 | ; may be ebx=0 - start from first byte |
76 | ; ecx number of bytes to read, 0+ |
76 | ; ecx number of bytes to read, 0+ |
77 | ; edx mem location to return data |
77 | ; edx mem location to return data |
78 | ; |
78 | ; |
79 | ; ret ebx = bytes read or 0xffffffff file not found |
79 | ; ret ebx = bytes read or 0xffffffff file not found |
80 | ; eax = 0 ok read or other = errormsg |
80 | ; eax = 0 ok read or other = errormsg |
81 | ; |
81 | ; |
82 | ;-------------------------------------------------------------- |
82 | ;-------------------------------------------------------------- |
83 | fs_CdRead: |
83 | fs_CdRead: |
84 | push edi |
84 | push edi |
85 | cmp byte [esi], 0 |
85 | cmp byte [esi], 0 |
86 | jnz @f |
86 | jnz @f |
87 | .noaccess: |
87 | .noaccess: |
88 | pop edi |
88 | pop edi |
89 | .noaccess_2: |
89 | .noaccess_2: |
90 | or ebx, -1 |
90 | or ebx, -1 |
91 | mov eax, ERROR_ACCESS_DENIED |
91 | mov eax, ERROR_ACCESS_DENIED |
92 | ret |
92 | ret |
93 | 93 | ||
94 | .noaccess_3: |
94 | .noaccess_3: |
95 | pop eax edx ecx edi |
95 | pop eax edx ecx edi |
96 | jmp .noaccess_2 |
96 | jmp .noaccess_2 |
97 | 97 | ||
98 | @@: |
98 | @@: |
99 | call cd_find_lfn |
99 | call cd_find_lfn |
100 | jnc .found |
100 | jnc .found |
101 | pop edi |
101 | pop edi |
102 | cmp [DevErrorCode],0 |
102 | cmp [DevErrorCode],0 |
103 | jne .noaccess_2 |
103 | jne .noaccess_2 |
104 | or ebx, -1 |
104 | or ebx, -1 |
105 | mov eax, ERROR_FILE_NOT_FOUND |
105 | mov eax, ERROR_FILE_NOT_FOUND |
106 | ret |
106 | ret |
107 | 107 | ||
108 | .found: |
108 | .found: |
109 | mov edi,[cd_current_pointer_of_input] |
109 | mov edi,[cd_current_pointer_of_input] |
110 | test byte [edi+25],10b ; do not allow read directories |
110 | test byte [edi+25],10b ; do not allow read directories |
111 | jnz .noaccess |
111 | jnz .noaccess |
112 | test ebx, ebx |
112 | test ebx, ebx |
113 | jz .l1 |
113 | jz .l1 |
114 | cmp dword [ebx+4], 0 |
114 | cmp dword [ebx+4], 0 |
115 | jz @f |
115 | jz @f |
116 | xor ebx, ebx |
116 | xor ebx, ebx |
117 | .reteof: |
117 | .reteof: |
118 | mov eax, 6 ; end of file |
118 | mov eax, 6 ; end of file |
119 | pop edi |
119 | pop edi |
120 | ret |
120 | ret |
121 | @@: |
121 | @@: |
122 | mov ebx, [ebx] |
122 | mov ebx, [ebx] |
123 | .l1: |
123 | .l1: |
124 | push ecx edx |
124 | push ecx edx |
125 | push 0 |
125 | push 0 |
126 | mov eax, [edi+10] ; ðåàëüíûé ðàçìåð ôàéëîâîé ñåêöèè |
126 | mov eax, [edi+10] ; ðåàëüíûé ðàçìåð ôàéëîâîé ñåêöèè |
127 | sub eax, ebx |
127 | sub eax, ebx |
128 | jb .eof |
128 | jb .eof |
129 | cmp eax, ecx |
129 | cmp eax, ecx |
130 | jae @f |
130 | jae @f |
131 | mov ecx, eax |
131 | mov ecx, eax |
132 | mov byte [esp], 6 |
132 | mov byte [esp], 6 |
133 | @@: |
133 | @@: |
134 | mov eax,[edi+2] |
134 | mov eax,[edi+2] |
135 | mov [CDSectorAddress],eax |
135 | mov [CDSectorAddress],eax |
136 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
136 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
137 | .new_sector: |
137 | .new_sector: |
138 | test ecx, ecx |
138 | test ecx, ecx |
139 | jz .done |
139 | jz .done |
140 | sub ebx, 2048 |
140 | sub ebx, 2048 |
141 | jae .new_sector |
141 | jae .next |
142 | add ebx, 2048 |
142 | add ebx, 2048 |
143 | jnz .incomplete_sector |
143 | jnz .incomplete_sector |
144 | cmp ecx, 2048 |
144 | cmp ecx, 2048 |
145 | jb .incomplete_sector |
145 | jb .incomplete_sector |
146 | ; we may read and memmove complete sector |
146 | ; we may read and memmove complete sector |
147 | mov [CDDataBuf_pointer],edx |
147 | mov [CDDataBuf_pointer],edx |
148 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
148 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
149 | cmp [DevErrorCode],0 |
149 | cmp [DevErrorCode],0 |
150 | jne .noaccess_3 |
150 | jne .noaccess_3 |
151 | inc dword [CDSectorAddress] |
151 | add edx, 2048 |
152 | add edx, 2048 |
- | |
153 | sub ecx, 2048 |
152 | sub ecx, 2048 |
154 | jmp .new_sector |
153 | .next: |
- | 154 | inc dword [CDSectorAddress] |
|
- | 155 | jmp .new_sector |
|
155 | .incomplete_sector: |
156 | .incomplete_sector: |
156 | ; we must read and memmove incomplete sector |
157 | ; we must read and memmove incomplete sector |
157 | mov [CDDataBuf_pointer],CDDataBuf |
158 | mov [CDDataBuf_pointer],CDDataBuf |
158 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
159 | call ReadCDWRetr ; ÷èòàåì ñåêòîð ôàéëà |
159 | cmp [DevErrorCode],0 |
160 | cmp [DevErrorCode],0 |
160 | jne .noaccess_3 |
161 | jne .noaccess_3 |
161 | inc dword [CDSectorAddress] |
162 | push ecx |
162 | mov eax,CDDataBuf |
- | |
163 | add eax, ebx |
- | |
164 | push ecx |
- | |
165 | add ecx, ebx |
163 | add ecx, ebx |
166 | cmp ecx, 2048 |
164 | cmp ecx, 2048 |
167 | jbe @f |
165 | jbe @f |
168 | mov ecx, 2048 |
166 | mov ecx, 2048 |
169 | @@: |
167 | @@: |
170 | sub ecx, ebx |
168 | sub ecx, ebx |
171 | push edi esi ecx |
169 | push edi esi ecx |
172 | mov edi,edx |
170 | mov edi,edx |
173 | mov esi,eax ;0x7000 ; CD data buffer |
171 | lea esi, [CDDataBuf + ebx] |
174 | cld |
172 | cld |
175 | rep movsb |
173 | rep movsb |
176 | pop ecx esi edi |
174 | pop ecx esi edi |
177 | add edx, ecx |
175 | add edx, ecx |
178 | sub [esp], ecx |
176 | sub [esp], ecx |
179 | pop ecx |
177 | pop ecx |
180 | xor ebx, ebx |
178 | xor ebx, ebx |
181 | jmp .new_sector |
179 | jmp .next |
182 | 180 | ||
183 | .done: |
181 | .done: |
184 | mov ebx, edx |
182 | mov ebx, edx |
185 | pop eax edx ecx edi |
183 | pop eax edx ecx edi |
186 | sub ebx, edx |
184 | sub ebx, edx |
187 | ret |
185 | ret |
188 | .eof: |
186 | .eof: |
189 | mov ebx, edx |
187 | mov ebx, edx |
190 | pop eax edx ecx |
188 | pop eax edx ecx |
191 | sub ebx, edx |
189 | sub ebx, edx |
192 | jmp .reteof |
190 | jmp .reteof |
193 | 191 | ||
194 | ;---------------------------------------------------------------- |
192 | ;---------------------------------------------------------------- |
195 | ; |
193 | ; |
196 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
194 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
197 | ; |
195 | ; |
198 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
196 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
199 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
197 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
200 | ; & flags (bitfields) |
198 | ; & flags (bitfields) |
201 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
199 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
202 | ; ecx number of blocks to read, 0+ |
200 | ; ecx number of blocks to read, 0+ |
203 | ; edx mem location to return data |
201 | ; edx mem location to return data |
204 | ; |
202 | ; |
205 | ; ret ebx = blocks read or 0xffffffff folder not found |
203 | ; ret ebx = blocks read or 0xffffffff folder not found |
206 | ; eax = 0 ok read or other = errormsg |
204 | ; eax = 0 ok read or other = errormsg |
207 | ; |
205 | ; |
208 | ;-------------------------------------------------------------- |
206 | ;-------------------------------------------------------------- |
209 | fs_CdReadFolder: |
207 | fs_CdReadFolder: |
210 | push edi |
208 | push edi |
211 | call cd_find_lfn |
209 | call cd_find_lfn |
212 | jnc .found |
210 | jnc .found |
213 | pop edi |
211 | pop edi |
214 | cmp [DevErrorCode],0 |
212 | cmp [DevErrorCode],0 |
215 | jne .noaccess_1 |
213 | jne .noaccess_1 |
216 | or ebx, -1 |
214 | or ebx, -1 |
217 | mov eax, ERROR_FILE_NOT_FOUND |
215 | mov eax, ERROR_FILE_NOT_FOUND |
218 | ret |
216 | ret |
219 | .found: |
217 | .found: |
220 | mov edi,[cd_current_pointer_of_input] |
218 | mov edi,[cd_current_pointer_of_input] |
221 | test byte [edi+25],10b ; do not allow read directories |
219 | test byte [edi+25],10b ; do not allow read directories |
222 | jnz .found_dir |
220 | jnz .found_dir |
223 | pop edi |
221 | pop edi |
224 | .noaccess_1: |
222 | .noaccess_1: |
225 | or ebx, -1 |
223 | or ebx, -1 |
226 | mov eax, ERROR_ACCESS_DENIED |
224 | mov eax, ERROR_ACCESS_DENIED |
227 | ret |
225 | ret |
228 | .found_dir: |
226 | .found_dir: |
229 | mov eax,[edi+2] ; eax=cluster |
227 | mov eax,[edi+2] ; eax=cluster |
230 | mov [CDSectorAddress],eax |
228 | mov [CDSectorAddress],eax |
231 | mov eax,[edi+10] ; ðàçìåð äèðåêòðîðèè |
229 | mov eax,[edi+10] ; ðàçìåð äèðåêòðîðèè |
232 | .doit: |
230 | .doit: |
233 | ; init header |
231 | ; init header |
234 | push eax ecx |
232 | push eax ecx |
235 | mov edi, edx |
233 | mov edi, edx |
236 | mov ecx, 32/4 |
234 | mov ecx, 32/4 |
237 | xor eax, eax |
235 | xor eax, eax |
238 | rep stosd |
236 | rep stosd |
239 | pop ecx eax |
237 | pop ecx eax |
240 | mov byte [edx], 1 ; version |
238 | mov byte [edx], 1 ; version |
241 | mov [cd_mem_location],edx |
239 | mov [cd_mem_location],edx |
242 | add [cd_mem_location],32 |
240 | add [cd_mem_location],32 |
243 | ; íà÷èíàåì ïåðåáðîñêó ÁÄÂÊ â ÓÑÂÊ |
241 | ; íà÷èíàåì ïåðåáðîñêó ÁÄÂÊ â ÓÑÂÊ |
244 | ;.mainloop: |
242 | ;.mainloop: |
245 | mov [cd_counter_block],dword 0 |
243 | mov [cd_counter_block],dword 0 |
246 | dec dword [CDSectorAddress] |
244 | dec dword [CDSectorAddress] |
247 | push ecx |
245 | push ecx |
248 | .read_to_buffer: |
246 | .read_to_buffer: |
249 | inc dword [CDSectorAddress] |
247 | inc dword [CDSectorAddress] |
250 | mov [CDDataBuf_pointer],CDDataBuf |
248 | mov [CDDataBuf_pointer],CDDataBuf |
251 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
249 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
252 | cmp [DevErrorCode],0 |
250 | cmp [DevErrorCode],0 |
253 | jne .noaccess_1 |
251 | jne .noaccess_1 |
254 | call .get_names_from_buffer |
252 | call .get_names_from_buffer |
255 | sub eax,2048 |
253 | sub eax,2048 |
256 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
254 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
257 | cmp eax,0 |
255 | cmp eax,0 |
258 | ja .read_to_buffer |
256 | ja .read_to_buffer |
259 | mov edi,[cd_counter_block] |
257 | mov edi,[cd_counter_block] |
260 | mov [edx+8],edi |
258 | mov [edx+8],edi |
261 | mov edi,[ebx] |
259 | mov edi,[ebx] |
262 | sub [edx+4],edi |
260 | sub [edx+4],edi |
263 | pop ecx edi |
261 | pop ecx edi |
264 | mov ebx, [edx+4] |
262 | mov ebx, [edx+4] |
265 | mov eax,ERROR_SUCCESS |
263 | mov eax,ERROR_SUCCESS |
266 | ret |
264 | ret |
267 | 265 | ||
268 | .get_names_from_buffer: |
266 | .get_names_from_buffer: |
269 | mov [cd_current_pointer_of_input_2],CDDataBuf |
267 | mov [cd_current_pointer_of_input_2],CDDataBuf |
270 | push eax esi edi edx |
268 | push eax esi edi edx |
271 | .get_names_from_buffer_1: |
269 | .get_names_from_buffer_1: |
272 | call cd_get_name |
270 | call cd_get_name |
273 | jc .end_buffer |
271 | jc .end_buffer |
274 | inc dword [cd_counter_block] |
272 | inc dword [cd_counter_block] |
275 | mov eax,[cd_counter_block] |
273 | mov eax,[cd_counter_block] |
276 | cmp [ebx],eax |
274 | cmp [ebx],eax |
277 | jae .get_names_from_buffer_1 |
275 | jae .get_names_from_buffer_1 |
278 | test ecx, ecx |
276 | test ecx, ecx |
279 | jz .get_names_from_buffer_1 |
277 | jz .get_names_from_buffer_1 |
280 | mov edi,[cd_counter_block] |
278 | mov edi,[cd_counter_block] |
281 | mov [edx+4],edi |
279 | mov [edx+4],edi |
282 | dec ecx |
280 | dec ecx |
283 | mov esi,ebp |
281 | mov esi,ebp |
284 | mov edi,[cd_mem_location] |
282 | mov edi,[cd_mem_location] |
285 | add edi,40 |
283 | add edi,40 |
286 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
284 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
287 | jnz .unicode |
285 | jnz .unicode |
288 | ; jmp .unicode |
286 | ; jmp .unicode |
289 | .ansi: |
287 | .ansi: |
290 | cmp [cd_counter_block],2 |
288 | cmp [cd_counter_block],2 |
291 | jbe .ansi_parent_directory |
289 | jbe .ansi_parent_directory |
292 | cld |
290 | cld |
293 | lodsw |
291 | lodsw |
294 | xchg ah,al |
292 | xchg ah,al |
295 | call uni2ansi_char |
293 | call uni2ansi_char |
296 | cld |
294 | cld |
297 | stosb |
295 | stosb |
298 | ; ïðîâåðêà êîíöà ôàéëà |
296 | ; ïðîâåðêà êîíöà ôàéëà |
299 | mov ax,[esi] |
297 | mov ax,[esi] |
300 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
298 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
301 | je .cd_get_parameters_of_file_1 |
299 | je .cd_get_parameters_of_file_1 |
302 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
300 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
303 | movzx eax,byte [ebp-33] |
301 | movzx eax,byte [ebp-33] |
304 | add eax,ebp |
302 | add eax,ebp |
305 | sub eax,34 |
303 | sub eax,34 |
306 | cmp esi,eax |
304 | cmp esi,eax |
307 | je .cd_get_parameters_of_file_1 |
305 | je .cd_get_parameters_of_file_1 |
308 | ; ïðîâåðêà êîíöà ïàïêè |
306 | ; ïðîâåðêà êîíöà ïàïêè |
309 | movzx eax,byte [ebp-1] |
307 | movzx eax,byte [ebp-1] |
310 | add eax,ebp |
308 | add eax,ebp |
311 | cmp esi,eax |
309 | cmp esi,eax |
312 | jb .ansi |
310 | jb .ansi |
313 | .cd_get_parameters_of_file_1: |
311 | .cd_get_parameters_of_file_1: |
314 | mov [edi],byte 0 |
312 | mov [edi],byte 0 |
315 | call cd_get_parameters_of_file |
313 | call cd_get_parameters_of_file |
316 | add [cd_mem_location],304 |
314 | add [cd_mem_location],304 |
317 | jmp .get_names_from_buffer_1 |
315 | jmp .get_names_from_buffer_1 |
318 | 316 | ||
319 | .ansi_parent_directory: |
317 | .ansi_parent_directory: |
320 | cmp [cd_counter_block],2 |
318 | cmp [cd_counter_block],2 |
321 | je @f |
319 | je @f |
322 | mov [edi],byte '.' |
320 | mov [edi],byte '.' |
323 | inc edi |
321 | inc edi |
324 | jmp .cd_get_parameters_of_file_1 |
322 | jmp .cd_get_parameters_of_file_1 |
325 | @@: |
323 | @@: |
326 | mov [edi],word '..' |
324 | mov [edi],word '..' |
327 | add edi,2 |
325 | add edi,2 |
328 | jmp .cd_get_parameters_of_file_1 |
326 | jmp .cd_get_parameters_of_file_1 |
329 | 327 | ||
330 | .unicode: |
328 | .unicode: |
331 | cmp [cd_counter_block],2 |
329 | cmp [cd_counter_block],2 |
332 | jbe .unicode_parent_directory |
330 | jbe .unicode_parent_directory |
333 | cld |
331 | cld |
334 | movsw |
332 | movsw |
335 | ; ïðîâåðêà êîíöà ôàéëà |
333 | ; ïðîâåðêà êîíöà ôàéëà |
336 | mov ax,[esi] |
334 | mov ax,[esi] |
337 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
335 | cmp ax,word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
338 | je .cd_get_parameters_of_file_2 |
336 | je .cd_get_parameters_of_file_2 |
339 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
337 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
340 | movzx eax,byte [ebp-33] |
338 | movzx eax,byte [ebp-33] |
341 | add eax,ebp |
339 | add eax,ebp |
342 | sub eax,34 |
340 | sub eax,34 |
343 | cmp esi,eax |
341 | cmp esi,eax |
344 | je .cd_get_parameters_of_file_2 |
342 | je .cd_get_parameters_of_file_2 |
345 | ; ïðîâåðêà êîíöà ïàïêè |
343 | ; ïðîâåðêà êîíöà ïàïêè |
346 | movzx eax,byte [ebp-1] |
344 | movzx eax,byte [ebp-1] |
347 | add eax,ebp |
345 | add eax,ebp |
348 | cmp esi,eax |
346 | cmp esi,eax |
349 | jb .unicode |
347 | jb .unicode |
350 | .cd_get_parameters_of_file_2: |
348 | .cd_get_parameters_of_file_2: |
351 | mov [edi],word 0 |
349 | mov [edi],word 0 |
352 | call cd_get_parameters_of_file |
350 | call cd_get_parameters_of_file |
353 | add [cd_mem_location],560 |
351 | add [cd_mem_location],560 |
354 | jmp .get_names_from_buffer_1 |
352 | jmp .get_names_from_buffer_1 |
355 | 353 | ||
356 | .unicode_parent_directory: |
354 | .unicode_parent_directory: |
357 | cmp [cd_counter_block],2 |
355 | cmp [cd_counter_block],2 |
358 | je @f |
356 | je @f |
359 | mov [edi],word 2E00h ; '.' |
357 | mov [edi],word 2E00h ; '.' |
360 | add edi,2 |
358 | add edi,2 |
361 | jmp .cd_get_parameters_of_file_2 |
359 | jmp .cd_get_parameters_of_file_2 |
362 | @@: |
360 | @@: |
363 | mov [edi],dword 2E002E00h ; '..' |
361 | mov [edi],dword 2E002E00h ; '..' |
364 | add edi,4 |
362 | add edi,4 |
365 | jmp .cd_get_parameters_of_file_2 |
363 | jmp .cd_get_parameters_of_file_2 |
366 | 364 | ||
367 | .end_buffer: |
365 | .end_buffer: |
368 | pop edx edi esi eax |
366 | pop edx edi esi eax |
369 | ret |
367 | ret |
370 | 368 | ||
371 | cd_get_parameters_of_file: |
369 | cd_get_parameters_of_file: |
372 | mov edi,[cd_mem_location] |
370 | mov edi,[cd_mem_location] |
373 | cd_get_parameters_of_file_1: |
371 | cd_get_parameters_of_file_1: |
374 | ; ïîëó÷àåì àòðèáóòû ôàéëà |
372 | ; ïîëó÷àåì àòðèáóòû ôàéëà |
375 | xor eax,eax |
373 | xor eax,eax |
376 | ; ôàéë íå àðõèâèðîâàëñÿ |
374 | ; ôàéë íå àðõèâèðîâàëñÿ |
377 | inc al |
375 | inc al |
378 | shl eax,1 |
376 | shl eax,1 |
379 | ; ýòî êàòàëîã? |
377 | ; ýòî êàòàëîã? |
380 | test [ebp-8],byte 2 |
378 | test [ebp-8],byte 2 |
381 | jz .file |
379 | jz .file |
382 | inc al |
380 | inc al |
383 | .file: |
381 | .file: |
384 | ; ìåòêà òîìà íå êàê â FAT, â ýòîì âèäå îòñóòñâóåò |
382 | ; ìåòêà òîìà íå êàê â FAT, â ýòîì âèäå îòñóòñâóåò |
385 | ; ôàéë íå ÿâëÿåòñÿ ñèñòåìíûì |
383 | ; ôàéë íå ÿâëÿåòñÿ ñèñòåìíûì |
386 | shl eax,3 |
384 | shl eax,3 |
387 | ; ôàéë ÿâëÿåòñÿ ñêðûòûì? (àòðèáóò ñóùåñòâîâàíèå) |
385 | ; ôàéë ÿâëÿåòñÿ ñêðûòûì? (àòðèáóò ñóùåñòâîâàíèå) |
388 | test [ebp-8],byte 1 |
386 | test [ebp-8],byte 1 |
389 | jz .hidden |
387 | jz .hidden |
390 | inc al |
388 | inc al |
391 | .hidden: |
389 | .hidden: |
392 | shl eax,1 |
390 | shl eax,1 |
393 | ; ôàéë âñåãäà òîëüêî äëÿ ÷òåíèÿ, òàê êàê ýòî CD |
391 | ; ôàéë âñåãäà òîëüêî äëÿ ÷òåíèÿ, òàê êàê ýòî CD |
394 | inc al |
392 | inc al |
395 | mov [edi],eax |
393 | mov [edi],eax |
396 | ; ïîëó÷àåì âðåìÿ äëÿ ôàéëà |
394 | ; ïîëó÷àåì âðåìÿ äëÿ ôàéëà |
397 | ;÷àñ |
395 | ;÷àñ |
398 | movzx eax,byte [ebp-12] |
396 | movzx eax,byte [ebp-12] |
399 | shl eax,8 |
397 | shl eax,8 |
400 | ;ìèíóòà |
398 | ;ìèíóòà |
401 | mov al,[ebp-11] |
399 | mov al,[ebp-11] |
402 | shl eax,8 |
400 | shl eax,8 |
403 | ;ñåêóíäà |
401 | ;ñåêóíäà |
404 | mov al,[ebp-10] |
402 | mov al,[ebp-10] |
405 | ;âðåìÿ ñîçäàíèÿ ôàéëà |
403 | ;âðåìÿ ñîçäàíèÿ ôàéëà |
406 | mov [edi+8],eax |
404 | mov [edi+8],eax |
407 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
405 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
408 | mov [edi+16],eax |
406 | mov [edi+16],eax |
409 | ;âðåìÿ ïîñëåäíåé çàïèñè |
407 | ;âðåìÿ ïîñëåäíåé çàïèñè |
410 | mov [edi+24],eax |
408 | mov [edi+24],eax |
411 | ; ïîëó÷àåì äàòó äëÿ ôàéëà |
409 | ; ïîëó÷àåì äàòó äëÿ ôàéëà |
412 | ;ãîä |
410 | ;ãîä |
413 | movzx eax,byte [ebp-15] |
411 | movzx eax,byte [ebp-15] |
414 | add eax,1900 |
412 | add eax,1900 |
415 | shl eax,8 |
413 | shl eax,8 |
416 | ;ìåñÿö |
414 | ;ìåñÿö |
417 | mov al,[ebp-14] |
415 | mov al,[ebp-14] |
418 | shl eax,8 |
416 | shl eax,8 |
419 | ;äåíü |
417 | ;äåíü |
420 | mov al,[ebp-13] |
418 | mov al,[ebp-13] |
421 | ;äàòà ñîçäàíèÿ ôàéëà |
419 | ;äàòà ñîçäàíèÿ ôàéëà |
422 | mov [edi+12],eax |
420 | mov [edi+12],eax |
423 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
421 | ;âðåìÿ ïîñëåäíåãî äîñòóïà |
424 | mov [edi+20],eax |
422 | mov [edi+20],eax |
425 | ;âðåìÿ ïîñëåäíåé çàïèñè |
423 | ;âðåìÿ ïîñëåäíåé çàïèñè |
426 | mov [edi+28],eax |
424 | mov [edi+28],eax |
427 | ; ïîëó÷àåì òèï äàííûõ èìåíè |
425 | ; ïîëó÷àåì òèï äàííûõ èìåíè |
428 | xor eax,eax |
426 | xor eax,eax |
429 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
427 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
430 | jnz .unicode_1 |
428 | jnz .unicode_1 |
431 | mov [edi+4],eax |
429 | mov [edi+4],eax |
432 | jmp @f |
430 | jmp @f |
433 | .unicode_1: |
431 | .unicode_1: |
434 | inc eax |
432 | inc eax |
435 | mov [edi+4],eax |
433 | mov [edi+4],eax |
436 | @@: |
434 | @@: |
437 | ; ïîëó÷àåì ðàçìåð ôàéëà â áàéòàõ |
435 | ; ïîëó÷àåì ðàçìåð ôàéëà â áàéòàõ |
438 | xor eax,eax |
436 | xor eax,eax |
439 | mov [edi+32+4],eax |
437 | mov [edi+32+4],eax |
440 | mov eax,[ebp-23] |
438 | mov eax,[ebp-23] |
441 | mov [edi+32],eax |
439 | mov [edi+32],eax |
442 | ret |
440 | ret |
443 | 441 | ||
444 | ;---------------------------------------------------------------- |
442 | ;---------------------------------------------------------------- |
445 | ; |
443 | ; |
446 | ; fs_CdGetFileInfo - LFN variant for CD |
444 | ; fs_CdGetFileInfo - LFN variant for CD |
447 | ; get file/directory attributes structure |
445 | ; get file/directory attributes structure |
448 | ; |
446 | ; |
449 | ;---------------------------------------------------------------- |
447 | ;---------------------------------------------------------------- |
450 | fs_CdGetFileInfo: |
448 | fs_CdGetFileInfo: |
451 | cmp byte [esi], 0 |
449 | cmp byte [esi], 0 |
452 | jnz @f |
450 | jnz @f |
453 | mov eax, 2 |
451 | mov eax, 2 |
454 | ret |
452 | ret |
455 | @@: |
453 | @@: |
456 | push edi ebp |
454 | push edi ebp |
457 | call cd_find_lfn |
455 | call cd_find_lfn |
458 | pushfd |
456 | pushfd |
459 | cmp [DevErrorCode], 0 |
457 | cmp [DevErrorCode], 0 |
460 | jz @f |
458 | jz @f |
461 | popfd |
459 | popfd |
462 | pop ebp edi |
460 | pop ebp edi |
463 | mov eax, 11 |
461 | mov eax, 11 |
464 | ret |
462 | ret |
465 | @@: |
463 | @@: |
466 | popfd |
464 | popfd |
467 | jnc @f |
465 | jnc @f |
468 | pop ebp edi |
466 | pop ebp edi |
469 | mov eax, ERROR_FILE_NOT_FOUND |
467 | mov eax, ERROR_FILE_NOT_FOUND |
470 | ret |
468 | ret |
471 | @@: |
469 | @@: |
472 | 470 | ||
473 | mov edi, edx |
471 | mov edi, edx |
474 | call cd_get_parameters_of_file_1 |
472 | call cd_get_parameters_of_file_1 |
475 | and dword [edi+4], 0 |
473 | and dword [edi+4], 0 |
476 | pop ebp edi |
474 | pop ebp edi |
477 | xor eax, eax |
475 | xor eax, eax |
478 | ret |
476 | ret |
479 | 477 | ||
480 | ;---------------------------------------------------------------- |
478 | ;---------------------------------------------------------------- |
481 | ; |
479 | ; |
482 | ; fs_CdExecute - LFN variant for executing from CD |
480 | ; fs_CdExecute - LFN variant for executing from CD |
483 | ; |
481 | ; |
484 | ; esi points to hd filename (e.g. 'dir1/name') |
482 | ; esi points to hd filename (e.g. 'dir1/name') |
485 | ; ebp points to full filename (e.g. '/hd0/1/dir1/name') |
483 | ; ebp points to full filename (e.g. '/hd0/1/dir1/name') |
486 | ; dword [ebx] = flags |
484 | ; dword [ebx] = flags |
487 | ; dword [ebx+4] = cmdline |
485 | ; dword [ebx+4] = cmdline |
488 | ; |
486 | ; |
489 | ; ret ebx,edx destroyed |
487 | ; ret ebx,edx destroyed |
490 | ; eax > 0 - PID, < 0 - error |
488 | ; eax > 0 - PID, < 0 - error |
491 | ; |
489 | ; |
492 | ;-------------------------------------------------------------- |
490 | ;-------------------------------------------------------------- |
493 | fs_CdExecute: |
491 | fs_CdExecute: |
494 | mov edx, [ebx] |
492 | mov edx, [ebx] |
495 | mov ebx, [ebx+4] |
493 | mov ebx, [ebx+4] |
496 | test ebx, ebx |
494 | test ebx, ebx |
497 | jz @f |
495 | jz @f |
498 | add ebx, std_application_base_address |
496 | add ebx, std_application_base_address |
499 | @@: |
497 | @@: |
500 | 498 | ||
501 | ;---------------------------------------------------------------- |
499 | ;---------------------------------------------------------------- |
502 | ; |
500 | ; |
503 | ; fs_CdExecute.flags - second entry |
501 | ; fs_CdExecute.flags - second entry |
504 | ; |
502 | ; |
505 | ; esi points to floppy filename (kernel address) |
503 | ; esi points to floppy filename (kernel address) |
506 | ; ebp points to full filename |
504 | ; ebp points to full filename |
507 | ; edx flags |
505 | ; edx flags |
508 | ; ebx cmdline (kernel address) |
506 | ; ebx cmdline (kernel address) |
509 | ; |
507 | ; |
510 | ; ret eax > 0 - PID, < 0 - error |
508 | ; ret eax > 0 - PID, < 0 - error |
511 | ; |
509 | ; |
512 | ;-------------------------------------------------------------- |
510 | ;-------------------------------------------------------------- |
513 | 511 | ||
514 | .flags: |
512 | .flags: |
515 | cmp byte [esi], 0 |
513 | cmp byte [esi], 0 |
516 | jnz @f |
514 | jnz @f |
517 | ; cannot execute root! |
515 | ; cannot execute root! |
518 | mov eax, -ERROR_ACCESS_DENIED |
516 | mov eax, -ERROR_ACCESS_DENIED |
519 | ret |
517 | ret |
520 | @@: |
518 | @@: |
521 | push edi |
519 | push edi |
522 | call cd_find_lfn |
520 | call cd_find_lfn |
523 | jnc .found |
521 | jnc .found |
524 | pop edi |
522 | pop edi |
525 | mov eax, -ERROR_FILE_NOT_FOUND |
523 | mov eax, -ERROR_FILE_NOT_FOUND |
526 | cmp [DevErrorCode], 0 |
524 | cmp [DevErrorCode], 0 |
527 | jz @f |
525 | jz @f |
528 | mov al, -11 |
526 | mov al, -11 |
529 | @@: |
527 | @@: |
530 | ret |
528 | ret |
531 | .found: |
529 | .found: |
532 | mov edi,[cd_current_pointer_of_input] |
530 | mov edi,[cd_current_pointer_of_input] |
533 | mov eax,[edi+2] |
531 | mov eax,[edi+2] |
534 | push 0 |
532 | push 0 |
535 | push eax |
533 | push eax |
536 | push dword [edi+10] ; size |
534 | push dword [edi+10] ; size |
537 | push .DoRead |
535 | push .DoRead |
538 | call fs_execute |
536 | call fs_execute |
539 | add esp, 16 |
537 | add esp, 16 |
540 | pop edi |
538 | pop edi |
541 | ret |
539 | ret |
542 | 540 | ||
543 | .DoRead: |
541 | .DoRead: |
544 | ; read next block |
542 | ; read next block |
545 | ; in: eax->parameters, edi->buffer |
543 | ; in: eax->parameters, edi->buffer |
546 | ; out: eax = error code |
544 | ; out: eax = error code |
547 | pushad |
545 | pushad |
548 | cmp dword [eax], 0 ; file size |
546 | cmp dword [eax], 0 ; file size |
549 | jz .eof |
547 | jz .eof |
550 | cmp [eax+8],dword 0 |
548 | cmp [eax+8],dword 0 |
551 | jne @f |
549 | jne @f |
552 | mov ecx,[eax+4] |
550 | mov ecx,[eax+4] |
553 | inc dword [eax+4] |
551 | inc dword [eax+4] |
554 | mov [CDSectorAddress],ecx |
552 | mov [CDSectorAddress],ecx |
555 | mov [CDDataBuf_pointer],CDDataBuf ;edi |
553 | mov [CDDataBuf_pointer],CDDataBuf ;edi |
556 | call ReadCDWRetr |
554 | call ReadCDWRetr |
557 | cmp [DevErrorCode], 0 |
555 | cmp [DevErrorCode], 0 |
558 | jnz .err |
556 | jnz .err |
559 | @@: |
557 | @@: |
560 | push esi edi ecx |
558 | push esi edi ecx |
561 | mov esi,512 |
559 | mov esi,512 |
562 | imul esi,[eax+8] |
560 | imul esi,[eax+8] |
563 | add esi,CDDataBuf |
561 | add esi,CDDataBuf |
564 | mov ecx,512/4 |
562 | mov ecx,512/4 |
565 | cld |
563 | cld |
566 | rep movsd |
564 | rep movsd |
567 | pop ecx edi esi |
565 | pop ecx edi esi |
568 | 566 | ||
569 | mov eax, [esp+28] |
567 | mov eax, [esp+28] |
570 | mov ecx, [eax] |
568 | mov ecx, [eax] |
571 | sub ecx, 512 |
569 | sub ecx, 512 |
572 | jae @f |
570 | jae @f |
573 | lea edi, [edi+ecx+512] |
571 | lea edi, [edi+ecx+512] |
574 | neg ecx |
572 | neg ecx |
575 | push eax |
573 | push eax |
576 | xor eax, eax |
574 | xor eax, eax |
577 | rep stosb |
575 | rep stosb |
578 | pop eax |
576 | pop eax |
579 | @@: |
577 | @@: |
580 | mov [eax], ecx |
578 | mov [eax], ecx |
581 | mov edx, [eax+8] |
579 | mov edx, [eax+8] |
582 | inc edx |
580 | inc edx |
583 | cmp edx, 4 ; 2048/512=4 |
581 | cmp edx, 4 ; 2048/512=4 |
584 | jb @f |
582 | jb @f |
585 | xor edx, edx |
583 | xor edx, edx |
586 | @@: |
584 | @@: |
587 | mov [eax+8], edx |
585 | mov [eax+8], edx |
588 | popad |
586 | popad |
589 | xor eax, eax |
587 | xor eax, eax |
590 | ret |
588 | ret |
591 | .eof: |
589 | .eof: |
592 | popad |
590 | popad |
593 | mov eax, 6 |
591 | mov eax, 6 |
594 | ret |
592 | ret |
595 | .err: |
593 | .err: |
596 | popad |
594 | popad |
597 | mov eax, 11 |
595 | mov eax, 11 |
598 | ret |
596 | ret |
599 | 597 | ||
600 | cd_find_lfn: |
598 | cd_find_lfn: |
601 | ; in: esi->name |
599 | ; in: esi->name |
602 | ; out: CF=1 - file not found |
600 | ; out: CF=1 - file not found |
603 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
601 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
604 | push eax esi |
602 | push eax esi |
605 | ; 16 ñåêòîð íà÷àëî íàáîðà äåñêðèïòîðîâ òîìîâ |
603 | ; 16 ñåêòîð íà÷àëî íàáîðà äåñêðèïòîðîâ òîìîâ |
606 | mov [CDSectorAddress],dword 15 |
604 | mov [CDSectorAddress],dword 15 |
607 | .start: |
605 | .start: |
608 | inc dword [CDSectorAddress] |
606 | inc dword [CDSectorAddress] |
609 | mov [CDDataBuf_pointer],CDDataBuf |
607 | mov [CDDataBuf_pointer],CDDataBuf |
610 | call ReadCDWRetr |
608 | call ReadCDWRetr |
611 | cmp [DevErrorCode],0 |
609 | cmp [DevErrorCode],0 |
612 | jne .access_denied |
610 | jne .access_denied |
613 | ; ïðîâåðêà íà âøèâîñòü |
611 | ; ïðîâåðêà íà âøèâîñòü |
614 | cmp [CDDataBuf+1],dword 'CD00' |
612 | cmp [CDDataBuf+1],dword 'CD00' |
615 | jne .access_denied |
613 | jne .access_denied |
616 | cmp [CDDataBuf+5],byte '1' |
614 | cmp [CDDataBuf+5],byte '1' |
617 | jne .access_denied |
615 | jne .access_denied |
618 | ; ñåêòîð ÿâëÿåòñÿ òåðìèíàòîðîì íàáîð äåñêðèïòîðîâ òîìîâ? |
616 | ; ñåêòîð ÿâëÿåòñÿ òåðìèíàòîðîì íàáîð äåñêðèïòîðîâ òîìîâ? |
619 | cmp [CDDataBuf],byte 0xff |
617 | cmp [CDDataBuf],byte 0xff |
620 | je .access_denied |
618 | je .access_denied |
621 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì è óëó÷øåííûì äåñêðèïòîðîì òîìà? |
619 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì è óëó÷øåííûì äåñêðèïòîðîì òîìà? |
622 | cmp [CDDataBuf],byte 0x2 |
620 | cmp [CDDataBuf],byte 0x2 |
623 | jne .start |
621 | jne .start |
624 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì äåñêðèïòîðîì òîìà? |
622 | ; ñåêòîð ÿâëÿåòñÿ äîïîëíèòåëüíûì äåñêðèïòîðîì òîìà? |
625 | cmp [CDDataBuf+6],byte 0x1 |
623 | cmp [CDDataBuf+6],byte 0x1 |
626 | jne .start |
624 | jne .start |
627 | ; ïàðàìåòðû root äèðåêòðîðèè |
625 | ; ïàðàìåòðû root äèðåêòðîðèè |
628 | mov eax,[CDDataBuf+0x9c+2] ; íà÷àëî root äèðåêòðîðèè |
626 | mov eax,[CDDataBuf+0x9c+2] ; íà÷àëî root äèðåêòðîðèè |
629 | mov [CDSectorAddress],eax |
627 | mov [CDSectorAddress],eax |
630 | mov eax,[CDDataBuf+0x9c+10] ; ðàçìåð root äèðåêòðîðèè |
628 | mov eax,[CDDataBuf+0x9c+10] ; ðàçìåð root äèðåêòðîðèè |
631 | cmp byte [esi], 0 |
629 | cmp byte [esi], 0 |
632 | jnz @f |
630 | jnz @f |
633 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
631 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
634 | jmp .done |
632 | jmp .done |
635 | @@: |
633 | @@: |
636 | ; íà÷èíàåì ïîèñê |
634 | ; íà÷èíàåì ïîèñê |
637 | .mainloop: |
635 | .mainloop: |
638 | dec dword [CDSectorAddress] |
636 | dec dword [CDSectorAddress] |
639 | .read_to_buffer: |
637 | .read_to_buffer: |
640 | inc dword [CDSectorAddress] |
638 | inc dword [CDSectorAddress] |
641 | mov [CDDataBuf_pointer],CDDataBuf |
639 | mov [CDDataBuf_pointer],CDDataBuf |
642 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
640 | call ReadCDWRetr ; ÷èòàåì ñåêòîð äèðåêòîðèè |
643 | cmp [DevErrorCode],0 |
641 | cmp [DevErrorCode],0 |
644 | jne .access_denied |
642 | jne .access_denied |
645 | call cd_find_name_in_buffer |
643 | call cd_find_name_in_buffer |
646 | jnc .found |
644 | jnc .found |
647 | sub eax,2048 |
645 | sub eax,2048 |
648 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
646 | ; äèðåêòîðèÿ çàêîí÷èëàñü? |
649 | cmp eax,0 |
647 | cmp eax,0 |
650 | ja .read_to_buffer |
648 | ja .read_to_buffer |
651 | ; íåò èñêîìîãî ýëåìåíòà öåïî÷êè |
649 | ; íåò èñêîìîãî ýëåìåíòà öåïî÷êè |
652 | .access_denied: |
650 | .access_denied: |
653 | pop esi eax |
651 | pop esi eax |
654 | stc |
652 | stc |
655 | ret |
653 | ret |
656 | ; èñêîìûé ýëåìåíò öåïî÷êè íàéäåí |
654 | ; èñêîìûé ýëåìåíò öåïî÷êè íàéäåí |
657 | .found: |
655 | .found: |
658 | ; êîíåö ïóòè ôàéëà |
656 | ; êîíåö ïóòè ôàéëà |
659 | cmp byte [esi-1], 0 |
657 | cmp byte [esi-1], 0 |
660 | jz .done |
658 | jz .done |
661 | mov eax,[cd_current_pointer_of_input] |
659 | mov eax,[cd_current_pointer_of_input] |
662 | add eax,2 |
660 | add eax,2 |
663 | mov eax,[eax] |
661 | mov eax,[eax] |
664 | mov [CDSectorAddress],eax ; íà÷àëî äèðåêòîðèè |
662 | mov [CDSectorAddress],eax ; íà÷àëî äèðåêòîðèè |
665 | add eax,8 |
663 | add eax,8 |
666 | mov eax,[eax] ; ðàçìåð äèðåêòîðèè |
664 | mov eax,[eax] ; ðàçìåð äèðåêòîðèè |
667 | jmp .mainloop |
665 | jmp .mainloop |
668 | ; óêàçàòåëü ôàéëà íàéäåí |
666 | ; óêàçàòåëü ôàéëà íàéäåí |
669 | .done: |
667 | .done: |
670 | pop esi eax |
668 | pop esi eax |
671 | clc |
669 | clc |
672 | ret |
670 | ret |
673 | 671 | ||
674 | cd_find_name_in_buffer: |
672 | cd_find_name_in_buffer: |
675 | mov [cd_current_pointer_of_input_2],CDDataBuf |
673 | mov [cd_current_pointer_of_input_2],CDDataBuf |
676 | .start: |
674 | .start: |
677 | call cd_get_name |
675 | call cd_get_name |
678 | jc .not_found |
676 | jc .not_found |
679 | call cd_compare_name |
677 | call cd_compare_name |
680 | jc .start |
678 | jc .start |
681 | .found: |
679 | .found: |
682 | clc |
680 | clc |
683 | ret |
681 | ret |
684 | .not_found: |
682 | .not_found: |
685 | stc |
683 | stc |
686 | ret |
684 | ret |
687 | 685 | ||
688 | cd_get_name: |
686 | cd_get_name: |
689 | push eax |
687 | push eax |
690 | mov ebp,[cd_current_pointer_of_input_2] |
688 | mov ebp,[cd_current_pointer_of_input_2] |
691 | mov [cd_current_pointer_of_input],ebp |
689 | mov [cd_current_pointer_of_input],ebp |
692 | mov eax,[ebp] |
690 | mov eax,[ebp] |
693 | cmp eax,0 ; âõîäû çàêîí÷èëèñü? |
691 | cmp eax,0 ; âõîäû çàêîí÷èëèñü? |
694 | je .next_sector |
692 | je .next_sector |
695 | cmp ebp,CDDataBuf+2048 ; áóôåð çàêîí÷èëñÿ? |
693 | cmp ebp,CDDataBuf+2048 ; áóôåð çàêîí÷èëñÿ? |
696 | jae .next_sector |
694 | jae .next_sector |
697 | movzx eax, byte [ebp] |
695 | movzx eax, byte [ebp] |
698 | add [cd_current_pointer_of_input_2],eax ; ñëåäóþùèé âõîä êàòàëîãà |
696 | add [cd_current_pointer_of_input_2],eax ; ñëåäóþùèé âõîä êàòàëîãà |
699 | add ebp,33 ; óêàçàòåëü óñòàíîâëåí íà íà÷àëî èìåíè |
697 | add ebp,33 ; óêàçàòåëü óñòàíîâëåí íà íà÷àëî èìåíè |
700 | pop eax |
698 | pop eax |
701 | clc |
699 | clc |
702 | ret |
700 | ret |
703 | .next_sector: |
701 | .next_sector: |
704 | pop eax |
702 | pop eax |
705 | stc |
703 | stc |
706 | ret |
704 | ret |
707 | 705 | ||
708 | cd_compare_name: |
706 | cd_compare_name: |
709 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
707 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
710 | ; in: esi->name, ebp->name |
708 | ; in: esi->name, ebp->name |
711 | ; out: if names match: ZF=1 and esi->next component of name |
709 | ; out: if names match: ZF=1 and esi->next component of name |
712 | ; else: ZF=0, esi is not changed |
710 | ; else: ZF=0, esi is not changed |
713 | ; destroys eax |
711 | ; destroys eax |
714 | push esi eax edi |
712 | push esi eax edi |
715 | mov edi,ebp |
713 | mov edi,ebp |
716 | .loop: |
714 | .loop: |
717 | cld |
715 | cld |
718 | lodsb |
716 | lodsb |
719 | push ax |
717 | push ax |
720 | call char_todown |
718 | call char_todown |
721 | call ansi2uni_char |
719 | call ansi2uni_char |
722 | xchg ah,al |
720 | xchg ah,al |
723 | cld |
721 | cld |
724 | scasw |
722 | scasw |
725 | pop ax |
723 | pop ax |
726 | je .coincides |
724 | je .coincides |
727 | call char_toupper |
725 | call char_toupper |
728 | call ansi2uni_char |
726 | call ansi2uni_char |
729 | xchg ah,al |
727 | xchg ah,al |
730 | cld |
728 | cld |
731 | sub edi,2 |
729 | sub edi,2 |
732 | scasw |
730 | scasw |
733 | jne .name_not_coincide |
731 | jne .name_not_coincide |
734 | .coincides: |
732 | .coincides: |
735 | cmp [esi],byte '/' ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
733 | cmp [esi],byte '/' ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
736 | je .done |
734 | je .done |
737 | cmp [esi],byte 0 ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
735 | cmp [esi],byte 0 ; ðàçäåëèòåëü ïóòè, êîíåö èìåíè òåêóùåãî ýëåìåíòà |
738 | je .done |
736 | je .done |
739 | jmp .loop |
737 | jmp .loop |
740 | .name_not_coincide: |
738 | .name_not_coincide: |
741 | pop edi eax esi |
739 | pop edi eax esi |
742 | stc |
740 | stc |
743 | ret |
741 | ret |
744 | .done: |
742 | .done: |
745 | ; ïðîâåðêà êîíöà ôàéëà |
743 | ; ïðîâåðêà êîíöà ôàéëà |
746 | cmp [edi],word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
744 | cmp [edi],word 3B00h ; ñåïàðàòîð êîíöà ôàéëà ';' |
747 | je .done_1 |
745 | je .done_1 |
748 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
746 | ; ïðîâåðêà äëÿ ôàéëîâ íå çàêàí÷èâàþùèõñÿ ñåïàðàòîðîì |
749 | movzx eax,byte [ebp-33] |
747 | movzx eax,byte [ebp-33] |
750 | add eax,ebp |
748 | add eax,ebp |
751 | sub eax,34 |
749 | sub eax,34 |
752 | cmp edi,eax |
750 | cmp edi,eax |
753 | je .done_1 |
751 | je .done_1 |
754 | ; ïðîâåðêà êîíöà ïàïêè |
752 | ; ïðîâåðêà êîíöà ïàïêè |
755 | movzx eax,byte [ebp-1] |
753 | movzx eax,byte [ebp-1] |
756 | add eax,ebp |
754 | add eax,ebp |
757 | cmp edi,eax |
755 | cmp edi,eax |
758 | jne .name_not_coincide |
756 | jne .name_not_coincide |
759 | .done_1: |
757 | .done_1: |
760 | pop edi eax |
758 | pop edi eax |
761 | add esp,4 |
759 | add esp,4 |
762 | inc esi |
760 | inc esi |
763 | clc |
761 | clc |
764 | ret |
762 | ret |
765 | 763 | ||
766 | char_todown: |
764 | char_todown: |
767 | ; convert character to uppercase, using cp866 encoding |
765 | ; convert character to uppercase, using cp866 encoding |
768 | ; in: al=symbol |
766 | ; in: al=symbol |
769 | ; out: al=converted symbol |
767 | ; out: al=converted symbol |
770 | cmp al, 'A' |
768 | cmp al, 'A' |
771 | jb .ret |
769 | jb .ret |
772 | cmp al, 'Z' |
770 | cmp al, 'Z' |
773 | jbe .az |
771 | jbe .az |
774 | cmp al, '' |
772 | cmp al, '' |
775 | jb .ret |
773 | jb .ret |
776 | cmp al, '' |
774 | cmp al, '' |
777 | jb .rus1 |
775 | jb .rus1 |
778 | cmp al, '' |
776 | cmp al, '' |
779 | ja .ret |
777 | ja .ret |
780 | ; 0x90-0x9F -> 0xE0-0xEF |
778 | ; 0x90-0x9F -> 0xE0-0xEF |
781 | add al, 'à'-'' |
779 | add al, 'à'-'' |
782 | .ret: |
780 | .ret: |
783 | ret |
781 | ret |
784 | .rus1: |
782 | .rus1: |
785 | ; 0x80-0x8F -> 0xA0-0xAF |
783 | ; 0x80-0x8F -> 0xA0-0xAF |
786 | .az: |
784 | .az: |
787 | add al, 0x20 |
785 | add al, 0x20 |
788 | ret |
786 | ret |
789 | 787 | ||
790 | uni2ansi_char: |
788 | uni2ansi_char: |
791 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
789 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
792 | ; in: ax=UNICODE character |
790 | ; in: ax=UNICODE character |
793 | ; out: al=converted ANSI character |
791 | ; out: al=converted ANSI character |
794 | cmp ax, 0x80 |
792 | cmp ax, 0x80 |
795 | jb .ascii |
793 | jb .ascii |
796 | cmp ax, 0x401 |
794 | cmp ax, 0x401 |
797 | jz .yo1 |
795 | jz .yo1 |
798 | cmp ax, 0x451 |
796 | cmp ax, 0x451 |
799 | jz .yo2 |
797 | jz .yo2 |
800 | cmp ax, 0x410 |
798 | cmp ax, 0x410 |
801 | jb .unk |
799 | jb .unk |
802 | cmp ax, 0x440 |
800 | cmp ax, 0x440 |
803 | jb .rus1 |
801 | jb .rus1 |
804 | cmp ax, 0x450 |
802 | cmp ax, 0x450 |
805 | jb .rus2 |
803 | jb .rus2 |
806 | .unk: |
804 | .unk: |
807 | mov al, '_' |
805 | mov al, '_' |
808 | jmp .doit |
806 | jmp .doit |
809 | .yo1: |
807 | .yo1: |
810 | mov al, 'ð' |
808 | mov al, 'ð' |
811 | jmp .doit |
809 | jmp .doit |
812 | .yo2: |
810 | .yo2: |
813 | mov al, 'ñ' |
811 | mov al, 'ñ' |
814 | jmp .doit |
812 | jmp .doit |
815 | .rus1: |
813 | .rus1: |
816 | ; 0x410-0x43F -> 0x80-0xAF |
814 | ; 0x410-0x43F -> 0x80-0xAF |
817 | add al, 0x70 |
815 | add al, 0x70 |
818 | jmp .doit |
816 | jmp .doit |
819 | .rus2: |
817 | .rus2: |
820 | ; 0x440-0x44F -> 0xE0-0xEF |
818 | ; 0x440-0x44F -> 0xE0-0xEF |
821 | add al, 0xA0 |
819 | add al, 0xA0 |
822 | .ascii: |
820 | .ascii: |
823 | .doit: |
821 | .doit: |
824 | ret>> |
822 | ret>> |