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1 | ; System function 70 - files with long names (LFN) |
1 | ; System function 70 - files with long names (LFN) |
2 | ; diamond, 2006 |
2 | ; diamond, 2006 |
3 | 3 | ||
4 | iglobal |
4 | iglobal |
5 | ; in this table names must be in lowercase |
5 | ; in this table names must be in lowercase |
6 | rootdirs: |
6 | rootdirs: |
7 | db 2,'rd' |
7 | db 2,'rd' |
8 | dd fs_OnRamdisk |
8 | dd fs_OnRamdisk |
9 | dd fs_NextRamdisk |
9 | dd fs_NextRamdisk |
10 | db 7,'ramdisk' |
10 | db 7,'ramdisk' |
11 | dd fs_OnRamdisk |
11 | dd fs_OnRamdisk |
12 | dd fs_NextRamdisk |
12 | dd fs_NextRamdisk |
13 | db 2,'fd' |
13 | db 2,'fd' |
14 | dd fs_OnFloppy |
14 | dd fs_OnFloppy |
15 | dd fs_NextFloppy |
15 | dd fs_NextFloppy |
16 | db 10,'floppydisk' |
16 | db 10,'floppydisk' |
17 | dd fs_OnFloppy |
17 | dd fs_OnFloppy |
18 | dd fs_NextFloppy |
18 | dd fs_NextFloppy |
19 | db 3,'hd0' |
19 | db 3,'hd0' |
20 | dd fs_OnHd0 |
20 | dd fs_OnHd0 |
21 | dd fs_NextHd0 |
21 | dd fs_NextHd0 |
22 | db 3,'hd1' |
22 | db 3,'hd1' |
23 | dd fs_OnHd1 |
23 | dd fs_OnHd1 |
24 | dd fs_NextHd1 |
24 | dd fs_NextHd1 |
25 | db 3,'hd2' |
25 | db 3,'hd2' |
26 | dd fs_OnHd2 |
26 | dd fs_OnHd2 |
27 | dd fs_NextHd2 |
27 | dd fs_NextHd2 |
28 | db 3,'hd3' |
28 | db 3,'hd3' |
29 | dd fs_OnHd3 |
29 | dd fs_OnHd3 |
30 | dd fs_NextHd3 |
30 | dd fs_NextHd3 |
31 | ;********************************************** |
31 | ;********************************************** |
32 | db 3,'cd0' |
32 | db 3,'cd0' |
33 | dd fs_OnCd0 |
33 | dd fs_OnCd0 |
34 | dd fs_NextCd |
34 | dd fs_NextCd |
35 | db 3,'cd1' |
35 | db 3,'cd1' |
36 | dd fs_OnCd1 |
36 | dd fs_OnCd1 |
37 | dd fs_NextCd |
37 | dd fs_NextCd |
38 | db 3,'cd2' |
38 | db 3,'cd2' |
39 | dd fs_OnCd2 |
39 | dd fs_OnCd2 |
40 | dd fs_NextCd |
40 | dd fs_NextCd |
41 | db 3,'cd3' |
41 | db 3,'cd3' |
42 | dd fs_OnCd3 |
42 | dd fs_OnCd3 |
43 | dd fs_NextCd |
43 | dd fs_NextCd |
44 | ;*********************************************** |
44 | ;*********************************************** |
45 | db 0 |
45 | db 0 |
46 | 46 | ||
47 | 47 | ||
48 | virtual_root_query: |
48 | virtual_root_query: |
49 | dd fs_HasRamdisk |
49 | dd fs_HasRamdisk |
50 | db 'rd',0 |
50 | db 'rd',0 |
51 | dd fs_HasFloppy |
51 | dd fs_HasFloppy |
52 | db 'fd',0 |
52 | db 'fd',0 |
53 | dd fs_HasHd0 |
53 | dd fs_HasHd0 |
54 | db 'hd0',0 |
54 | db 'hd0',0 |
55 | dd fs_HasHd1 |
55 | dd fs_HasHd1 |
56 | db 'hd1',0 |
56 | db 'hd1',0 |
57 | dd fs_HasHd2 |
57 | dd fs_HasHd2 |
58 | db 'hd2',0 |
58 | db 'hd2',0 |
59 | dd fs_HasHd3 |
59 | dd fs_HasHd3 |
60 | db 'hd3',0 |
60 | db 'hd3',0 |
61 | ;********************************************** |
61 | ;********************************************** |
62 | dd fs_HasCd0 |
62 | dd fs_HasCd0 |
63 | db 'cd0',0 |
63 | db 'cd0',0 |
64 | dd fs_HasCd1 |
64 | dd fs_HasCd1 |
65 | db 'cd1',0 |
65 | db 'cd1',0 |
66 | dd fs_HasCd2 |
66 | dd fs_HasCd2 |
67 | db 'cd2',0 |
67 | db 'cd2',0 |
68 | dd fs_HasCd3 |
68 | dd fs_HasCd3 |
69 | db 'cd3',0 |
69 | db 'cd3',0 |
70 | ;********************************************** |
70 | ;********************************************** |
71 | dd 0 |
71 | dd 0 |
72 | endg |
72 | endg |
73 | 73 | ||
74 | file_system_lfn: |
74 | file_system_lfn: |
75 | ; in: eax->fileinfo block |
75 | ; in: eax->fileinfo block |
76 | ; operation codes: |
76 | ; operation codes: |
77 | ; 0 : read file |
77 | ; 0 : read file |
78 | ; 1 : read folder |
78 | ; 1 : read folder |
79 | ; 2 : create/rewrite file |
79 | ; 2 : create/rewrite file |
80 | ; 3 : write/append to file |
80 | ; 3 : write/append to file |
81 | ; 4 : set end of file |
81 | ; 4 : set end of file |
82 | ; 5 : get file/directory attributes structure |
82 | ; 5 : get file/directory attributes structure |
83 | ; 6 : set file/directory attributes structure |
83 | ; 6 : set file/directory attributes structure |
84 | ; 7 : start application |
84 | ; 7 : start application |
85 | ; 8 : delete file |
85 | ; 8 : delete file |
86 | ; 9 : create directory - not implemented yet |
86 | ; 9 : create directory - not implemented yet |
87 | 87 | ||
88 | add eax, std_application_base_address |
88 | add eax, std_application_base_address |
89 | ; parse file name |
89 | ; parse file name |
90 | xchg ebx, eax |
90 | xchg ebx, eax |
91 | lea esi, [ebx+20] |
91 | lea esi, [ebx+20] |
92 | mov ebp, esi ; for 'start app' function full path must be known |
92 | mov ebp, esi ; for 'start app' function full path must be known |
93 | lodsb |
93 | lodsb |
94 | test al, al |
94 | test al, al |
95 | jnz @f |
95 | jnz @f |
96 | mov esi, [esi] |
96 | mov esi, [esi] |
97 | add esi, std_application_base_address |
97 | add esi, std_application_base_address |
98 | mov ebp, esi |
98 | mov ebp, esi |
99 | lodsb |
99 | lodsb |
100 | @@: |
100 | @@: |
101 | cmp dword [ebx], 7 |
101 | cmp dword [ebx], 7 |
102 | jne @F |
102 | jne @F |
103 | mov edx, [ebx+4] |
103 | mov edx, [ebx+4] |
104 | mov ebx, [ebx+8] |
104 | mov ebx, [ebx+8] |
105 | test ebx, ebx |
105 | test ebx, ebx |
106 | jz .l1 |
106 | jz .l1 |
107 | add ebx, new_app_base |
107 | add ebx, new_app_base |
108 | .l1: |
108 | .l1: |
109 | call fs_execute ; ebp, ebx, edx |
109 | call fs_execute ; ebp, ebx, edx |
110 | mov [esp+36], eax |
110 | mov [esp+36], eax |
111 | ret |
111 | ret |
112 | @@: |
112 | @@: |
113 | cmp al, '/' |
113 | cmp al, '/' |
114 | jz @f |
114 | jz @f |
115 | .notfound: |
115 | .notfound: |
116 | mov dword [esp+36], 5 ; file not found |
116 | mov dword [esp+36], 5 ; file not found |
117 | ret |
117 | ret |
118 | @@: |
118 | @@: |
119 | cmp byte [esi], 0 |
119 | cmp byte [esi], 0 |
120 | jz .rootdir |
120 | jz .rootdir |
121 | mov edi, rootdirs-8 |
121 | mov edi, rootdirs-8 |
122 | xor ecx, ecx |
122 | xor ecx, ecx |
123 | push esi |
123 | push esi |
124 | .scan1: |
124 | .scan1: |
125 | pop esi |
125 | pop esi |
126 | add edi, ecx |
126 | add edi, ecx |
127 | scasd |
127 | scasd |
128 | scasd |
128 | scasd |
129 | mov cl, byte [edi] |
129 | mov cl, byte [edi] |
130 | jecxz .notfound |
130 | jecxz .notfound |
131 | inc edi |
131 | inc edi |
132 | push esi |
132 | push esi |
133 | @@: |
133 | @@: |
134 | lodsb |
134 | lodsb |
135 | or al, 20h |
135 | or al, 20h |
136 | scasb |
136 | scasb |
137 | loopz @b |
137 | loopz @b |
138 | jnz .scan1 |
138 | jnz .scan1 |
139 | lodsb |
139 | lodsb |
140 | cmp al, '/' |
140 | cmp al, '/' |
141 | jz .found1 |
141 | jz .found1 |
142 | test al, al |
142 | test al, al |
143 | jnz .scan1 |
143 | jnz .scan1 |
144 | pop eax |
144 | pop eax |
145 | ; directory /xxx |
145 | ; directory /xxx |
146 | .maindir: |
146 | .maindir: |
147 | cmp dword [ebx], 1 |
147 | cmp dword [ebx], 1 |
148 | jnz .access_denied |
148 | jnz .access_denied |
149 | xor eax, eax |
149 | xor eax, eax |
150 | mov ebp, [ebx+12] |
150 | mov ebp, [ebx+12] |
151 | mov edx, [ebx+16] |
151 | mov edx, [ebx+16] |
152 | add edx, std_application_base_address |
152 | add edx, std_application_base_address |
153 | push dword [ebx+4] ; first block |
153 | push dword [ebx+4] ; first block |
154 | mov ebx, [ebx+8] ; flags |
154 | mov ebx, [ebx+8] ; flags |
155 | mov esi, [edi+4] |
155 | mov esi, [edi+4] |
156 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
156 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
157 | mov edi, edx |
157 | mov edi, edx |
158 | mov ecx, 32/4 |
158 | mov ecx, 32/4 |
159 | rep stosd |
159 | rep stosd |
160 | mov byte [edx], 1 ; version |
160 | mov byte [edx], 1 ; version |
161 | .maindir_loop: |
161 | .maindir_loop: |
162 | call esi |
162 | call esi |
163 | jc .maindir_done |
163 | jc .maindir_done |
164 | inc dword [edx+8] |
164 | inc dword [edx+8] |
165 | dec dword [esp] |
165 | dec dword [esp] |
166 | jns .maindir_loop |
166 | jns .maindir_loop |
167 | dec ebp |
167 | dec ebp |
168 | js .maindir_loop |
168 | js .maindir_loop |
169 | inc dword [edx+4] |
169 | inc dword [edx+4] |
170 | mov dword [edi], 0x10 ; attributes: folder |
170 | mov dword [edi], 0x10 ; attributes: folder |
171 | mov dword [edi+4], 1 ; name type: UNICODE |
171 | mov dword [edi+4], 1 ; name type: UNICODE |
172 | push eax |
172 | push eax |
173 | xor eax, eax |
173 | xor eax, eax |
174 | add edi, 8 |
174 | add edi, 8 |
175 | mov ecx, 40/4-2 |
175 | mov ecx, 40/4-2 |
176 | rep stosd |
176 | rep stosd |
177 | pop eax |
177 | pop eax |
178 | push eax edx |
178 | push eax edx |
179 | ; convert number in eax to decimal UNICODE string |
179 | ; convert number in eax to decimal UNICODE string |
180 | push edi |
180 | push edi |
181 | push -'0' |
181 | push -'0' |
182 | mov cl, 10 |
182 | mov cl, 10 |
183 | @@: |
183 | @@: |
184 | xor edx, edx |
184 | xor edx, edx |
185 | div ecx |
185 | div ecx |
186 | push edx |
186 | push edx |
187 | test eax, eax |
187 | test eax, eax |
188 | jnz @b |
188 | jnz @b |
189 | @@: |
189 | @@: |
190 | pop eax |
190 | pop eax |
191 | add al, '0' |
191 | add al, '0' |
192 | stosb |
192 | stosb |
193 | test bl, 1 ; UNICODE name? |
193 | test bl, 1 ; UNICODE name? |
194 | jz .ansi2 |
194 | jz .ansi2 |
195 | mov byte [edi], 0 |
195 | mov byte [edi], 0 |
196 | inc edi |
196 | inc edi |
197 | .ansi2: |
197 | .ansi2: |
198 | test al, al |
198 | test al, al |
199 | jnz @b |
199 | jnz @b |
200 | mov byte [edi-1], 0 |
200 | mov byte [edi-1], 0 |
201 | pop edi |
201 | pop edi |
202 | ; UNICODE name length is 520 bytes, ANSI - 264 |
202 | ; UNICODE name length is 520 bytes, ANSI - 264 |
203 | add edi, 520 |
203 | add edi, 520 |
204 | test bl, 1 |
204 | test bl, 1 |
205 | jnz @f |
205 | jnz @f |
206 | sub edi, 520-264 |
206 | sub edi, 520-264 |
207 | @@: |
207 | @@: |
208 | pop edx eax |
208 | pop edx eax |
209 | jmp .maindir_loop |
209 | jmp .maindir_loop |
210 | .maindir_done: |
210 | .maindir_done: |
211 | pop eax |
211 | pop eax |
212 | mov ebx, [edx+4] |
212 | mov ebx, [edx+4] |
213 | xor eax, eax |
213 | xor eax, eax |
214 | dec ebp |
214 | dec ebp |
215 | js @f |
215 | js @f |
216 | mov al, ERROR_END_OF_FILE |
216 | mov al, ERROR_END_OF_FILE |
217 | @@: |
217 | @@: |
218 | mov [esp+36], eax |
218 | mov [esp+36], eax |
219 | mov [esp+24], ebx |
219 | mov [esp+24], ebx |
220 | ret |
220 | ret |
221 | ; directory / |
221 | ; directory / |
222 | .rootdir: |
222 | .rootdir: |
223 | cmp dword [ebx], 1 ; read folder? |
223 | cmp dword [ebx], 1 ; read folder? |
224 | jz .readroot |
224 | jz .readroot |
225 | .access_denied: |
225 | .access_denied: |
226 | mov dword [esp+36], 10 ; access denied |
226 | mov dword [esp+36], 10 ; access denied |
227 | ret |
227 | ret |
228 | 228 | ||
229 | .readroot: |
229 | .readroot: |
230 | ; virtual root folder - special handler |
230 | ; virtual root folder - special handler |
231 | mov esi, virtual_root_query |
231 | mov esi, virtual_root_query |
232 | mov ebp, [ebx+12] |
232 | mov ebp, [ebx+12] |
233 | mov edx, [ebx+16] |
233 | mov edx, [ebx+16] |
234 | add edx, std_application_base_address |
234 | add edx, std_application_base_address |
235 | push dword [ebx+4] ; first block |
235 | push dword [ebx+4] ; first block |
236 | mov ebx, [ebx+8] ; flags |
236 | mov ebx, [ebx+8] ; flags |
237 | xor eax, eax |
237 | xor eax, eax |
238 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
238 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
239 | mov edi, edx |
239 | mov edi, edx |
240 | mov ecx, 32/4 |
240 | mov ecx, 32/4 |
241 | rep stosd |
241 | rep stosd |
242 | mov byte [edx], 1 ; version |
242 | mov byte [edx], 1 ; version |
243 | .readroot_loop: |
243 | .readroot_loop: |
244 | cmp dword [esi], eax |
244 | cmp dword [esi], eax |
245 | jz .readroot_done |
245 | jz .readroot_done |
246 | call dword [esi] |
246 | call dword [esi] |
247 | add esi, 4 |
247 | add esi, 4 |
248 | test eax, eax |
248 | test eax, eax |
249 | jnz @f |
249 | jnz @f |
250 | .readroot_next: |
250 | .readroot_next: |
251 | or ecx, -1 |
251 | or ecx, -1 |
252 | xchg esi, edi |
252 | xchg esi, edi |
253 | repnz scasb |
253 | repnz scasb |
254 | xchg esi, edi |
254 | xchg esi, edi |
255 | jmp .readroot_loop |
255 | jmp .readroot_loop |
256 | @@: |
256 | @@: |
257 | xor eax, eax |
257 | xor eax, eax |
258 | inc dword [edx+8] |
258 | inc dword [edx+8] |
259 | dec dword [esp] |
259 | dec dword [esp] |
260 | jns .readroot_next |
260 | jns .readroot_next |
261 | dec ebp |
261 | dec ebp |
262 | js .readroot_next |
262 | js .readroot_next |
263 | inc dword [edx+4] |
263 | inc dword [edx+4] |
264 | mov dword [edi], 0x10 ; attributes: folder |
264 | mov dword [edi], 0x10 ; attributes: folder |
265 | mov dword [edi+4], 1 ; name type: UNICODE |
265 | mov dword [edi+4], 1 ; name type: UNICODE |
266 | add edi, 8 |
266 | add edi, 8 |
267 | mov ecx, 40/4-2 |
267 | mov ecx, 40/4-2 |
268 | rep stosd |
268 | rep stosd |
269 | push edi |
269 | push edi |
270 | @@: |
270 | @@: |
271 | lodsb |
271 | lodsb |
272 | stosb |
272 | stosb |
273 | test bl, 1 |
273 | test bl, 1 |
274 | jz .ansi |
274 | jz .ansi |
275 | mov byte [edi], 0 |
275 | mov byte [edi], 0 |
276 | inc edi |
276 | inc edi |
277 | .ansi: |
277 | .ansi: |
278 | test eax, eax |
278 | test eax, eax |
279 | jnz @b |
279 | jnz @b |
280 | pop edi |
280 | pop edi |
281 | add edi, 520 |
281 | add edi, 520 |
282 | test bl, 1 |
282 | test bl, 1 |
283 | jnz .readroot_loop |
283 | jnz .readroot_loop |
284 | sub edi, 520-264 |
284 | sub edi, 520-264 |
285 | jmp .readroot_loop |
285 | jmp .readroot_loop |
286 | .readroot_done: |
286 | .readroot_done: |
287 | pop eax |
287 | pop eax |
288 | mov ebx, [edx+4] |
288 | mov ebx, [edx+4] |
289 | xor eax, eax |
289 | xor eax, eax |
290 | dec ebp |
290 | dec ebp |
291 | js @f |
291 | js @f |
292 | mov al, ERROR_END_OF_FILE |
292 | mov al, ERROR_END_OF_FILE |
293 | @@: |
293 | @@: |
294 | mov [esp+36], eax |
294 | mov [esp+36], eax |
295 | mov [esp+24], ebx |
295 | mov [esp+24], ebx |
296 | ret |
296 | ret |
297 | 297 | ||
298 | .found1: |
298 | .found1: |
299 | pop eax |
299 | pop eax |
300 | cmp byte [esi], 0 |
300 | cmp byte [esi], 0 |
301 | jz .maindir |
301 | jz .maindir |
302 | ; read partition number |
302 | ; read partition number |
303 | xor ecx, ecx |
303 | xor ecx, ecx |
304 | xor eax, eax |
304 | xor eax, eax |
305 | @@: |
305 | @@: |
306 | lodsb |
306 | lodsb |
307 | cmp al, '/' |
307 | cmp al, '/' |
308 | jz .done1 |
308 | jz .done1 |
309 | test al, al |
309 | test al, al |
310 | jz .done1 |
310 | jz .done1 |
311 | sub al, '0' |
311 | sub al, '0' |
312 | cmp al, 9 |
312 | cmp al, 9 |
313 | ja .notfound |
313 | ja .notfound |
314 | imul ecx, 10 |
314 | imul ecx, 10 |
315 | add ecx, eax |
315 | add ecx, eax |
316 | jmp @b |
316 | jmp @b |
317 | .done1: |
317 | .done1: |
318 | test ecx, ecx |
318 | test ecx, ecx |
319 | jz .notfound |
319 | jz .notfound |
320 | test al, al |
320 | test al, al |
321 | jnz @f |
321 | jnz @f |
322 | dec esi |
322 | dec esi |
323 | @@: |
323 | @@: |
324 | ; now [edi] contains handler address, ecx - partition number, |
324 | ; now [edi] contains handler address, ecx - partition number, |
325 | ; esi points to ASCIIZ string - rest of name |
325 | ; esi points to ASCIIZ string - rest of name |
326 | jmp dword [edi] |
326 | jmp dword [edi] |
327 | 327 | ||
328 | ; handlers for devices |
328 | ; handlers for devices |
329 | ; in: ecx = 0 => query virtual directory /xxx |
329 | ; in: ecx = 0 => query virtual directory /xxx |
330 | ; in: ecx = partition number |
330 | ; in: ecx = partition number |
331 | ; esi -> relative (for device) name |
331 | ; esi -> relative (for device) name |
332 | ; ebx -> fileinfo |
332 | ; ebx -> fileinfo |
333 | ; out: [esp+36]=image of eax, [esp+24]=image of ebx |
333 | ; out: [esp+36]=image of eax, [esp+24]=image of ebx |
334 | 334 | ||
335 | fs_OnRamdisk: |
335 | fs_OnRamdisk: |
336 | cmp ecx, 1 |
336 | cmp ecx, 1 |
337 | jnz file_system_lfn.notfound |
337 | jnz file_system_lfn.notfound |
338 | mov eax, [ebx] |
338 | mov eax, [ebx] |
339 | cmp eax, fs_NumRamdiskServices |
339 | cmp eax, fs_NumRamdiskServices |
340 | jae .not_impl |
340 | jae .not_impl |
341 | mov ecx, [ebx+12] |
341 | mov ecx, [ebx+12] |
342 | mov edx, [ebx+16] |
342 | mov edx, [ebx+16] |
343 | add edx, std_application_base_address |
343 | add edx, std_application_base_address |
344 | add ebx, 4 |
344 | add ebx, 4 |
345 | call dword [fs_RamdiskServices + eax*4] |
345 | call dword [fs_RamdiskServices + eax*4] |
346 | mov [esp+36], eax |
346 | mov [esp+36], eax |
347 | mov [esp+24], ebx |
347 | mov [esp+24], ebx |
348 | ret |
348 | ret |
349 | .not_impl: |
349 | .not_impl: |
350 | mov dword [esp+36], 2 ; not implemented |
350 | mov dword [esp+36], 2 ; not implemented |
351 | ret |
351 | ret |
352 | 352 | ||
353 | fs_NotImplemented: |
353 | fs_NotImplemented: |
354 | mov eax, 2 |
354 | mov eax, 2 |
355 | ret |
355 | ret |
356 | 356 | ||
357 | fs_RamdiskServices: |
357 | fs_RamdiskServices: |
358 | dd fs_RamdiskRead |
358 | dd fs_RamdiskRead |
359 | dd fs_RamdiskReadFolder |
359 | dd fs_RamdiskReadFolder |
360 | dd fs_RamdiskRewrite |
360 | dd fs_RamdiskRewrite |
361 | dd fs_RamdiskWrite |
361 | dd fs_RamdiskWrite |
362 | dd fs_RamdiskSetFileEnd |
362 | dd fs_RamdiskSetFileEnd |
363 | dd fs_RamdiskGetFileInfo |
363 | dd fs_RamdiskGetFileInfo |
364 | dd fs_RamdiskSetFileInfo |
364 | dd fs_RamdiskSetFileInfo |
365 | dd fs_RamdiskExecute |
365 | dd fs_RamdiskExecute |
366 | dd fs_RamdiskDelete |
366 | dd fs_RamdiskDelete |
367 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
367 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
368 | 368 | ||
369 | fs_OnFloppy: |
369 | fs_OnFloppy: |
370 | cmp ecx, 2 |
370 | cmp ecx, 2 |
371 | ja file_system_lfn.notfound |
371 | ja file_system_lfn.notfound |
372 | mov eax, [ebx] |
372 | mov eax, [ebx] |
373 | cmp eax, fs_NumFloppyServices |
373 | cmp eax, fs_NumFloppyServices |
374 | jae fs_OnRamdisk.not_impl |
374 | jae fs_OnRamdisk.not_impl |
375 | call reserve_flp |
375 | call reserve_flp |
376 | mov [flp_number], cl |
376 | mov [flp_number], cl |
377 | mov ecx, [ebx+12] |
377 | mov ecx, [ebx+12] |
378 | mov edx, [ebx+16] |
378 | mov edx, [ebx+16] |
379 | add edx, std_application_base_address |
379 | add edx, std_application_base_address |
380 | add ebx, 4 |
380 | add ebx, 4 |
381 | call dword [fs_FloppyServices + eax*4] |
381 | call dword [fs_FloppyServices + eax*4] |
382 | and [flp_status], 0 |
382 | and [flp_status], 0 |
383 | mov [esp+36], eax |
383 | mov [esp+36], eax |
384 | mov [esp+24], ebx |
384 | mov [esp+24], ebx |
385 | ret |
385 | ret |
386 | 386 | ||
387 | fs_FloppyServices: |
387 | fs_FloppyServices: |
388 | dd fs_FloppyRead |
388 | dd fs_FloppyRead |
389 | dd fs_FloppyReadFolder |
389 | dd fs_FloppyReadFolder |
390 | dd fs_FloppyRewrite |
390 | dd fs_FloppyRewrite |
391 | dd fs_FloppyWrite |
391 | dd fs_FloppyWrite |
392 | dd fs_FloppySetFileEnd |
392 | dd fs_FloppySetFileEnd |
393 | dd fs_FloppyGetFileInfo |
393 | dd fs_FloppyGetFileInfo |
394 | dd fs_FloppySetFileInfo |
394 | dd fs_FloppySetFileInfo |
395 | dd fs_FloppyExecute |
395 | dd fs_FloppyExecute |
396 | dd fs_FloppyDelete |
396 | dd fs_FloppyDelete |
397 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
397 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
398 | 398 | ||
399 | fs_OnHd0: |
399 | fs_OnHd0: |
400 | call reserve_hd1 |
400 | call reserve_hd1 |
401 | mov [hdbase], 0x1F0 |
401 | mov [hdbase], 0x1F0 |
402 | mov [hdid], 0 |
402 | mov [hdid], 0 |
403 | push 1 |
403 | push 1 |
404 | jmp fs_OnHd |
404 | jmp fs_OnHd |
405 | fs_OnHd1: |
405 | fs_OnHd1: |
406 | call reserve_hd1 |
406 | call reserve_hd1 |
407 | mov [hdbase], 0x1F0 |
407 | mov [hdbase], 0x1F0 |
408 | mov [hdid], 0x10 |
408 | mov [hdid], 0x10 |
409 | push 2 |
409 | push 2 |
410 | jmp fs_OnHd |
410 | jmp fs_OnHd |
411 | fs_OnHd2: |
411 | fs_OnHd2: |
412 | call reserve_hd1 |
412 | call reserve_hd1 |
413 | mov [hdbase], 0x170 |
413 | mov [hdbase], 0x170 |
414 | mov [hdid], 0 |
414 | mov [hdid], 0 |
415 | push 3 |
415 | push 3 |
416 | jmp fs_OnHd |
416 | jmp fs_OnHd |
417 | fs_OnHd3: |
417 | fs_OnHd3: |
418 | call reserve_hd1 |
418 | call reserve_hd1 |
419 | mov [hdbase], 0x170 |
419 | mov [hdbase], 0x170 |
420 | mov [hdid], 0x10 |
420 | mov [hdid], 0x10 |
421 | push 4 |
421 | push 4 |
422 | fs_OnHd: |
422 | fs_OnHd: |
423 | call reserve_hd_channel |
423 | call reserve_hd_channel |
424 | pop eax |
424 | pop eax |
425 | mov [hdpos], eax |
425 | mov [hdpos], eax |
426 | cmp ecx, 0x100 |
426 | cmp ecx, 0x100 |
427 | jae .nf |
427 | jae .nf |
428 | cmp cl, [0x40001+eax] |
428 | cmp cl, [0x40001+eax] |
429 | jbe @f |
429 | jbe @f |
430 | .nf: |
430 | .nf: |
431 | call free_hd_channel |
431 | call free_hd_channel |
432 | and [hd1_status], 0 |
432 | and [hd1_status], 0 |
433 | mov dword [esp+36], 5 ; not found |
433 | mov dword [esp+36], 5 ; not found |
434 | ret |
434 | ret |
435 | @@: |
435 | @@: |
436 | mov [fat32part], ecx |
436 | mov [fat32part], ecx |
437 | push ebx esi |
437 | push ebx esi |
438 | call choice_necessity_partition_1 |
438 | call choice_necessity_partition_1 |
439 | pop esi ebx |
439 | pop esi ebx |
440 | mov ecx, [ebx+12] |
440 | mov ecx, [ebx+12] |
441 | mov edx, [ebx+16] |
441 | mov edx, [ebx+16] |
442 | add edx, std_application_base_address |
442 | add edx, std_application_base_address |
443 | mov eax, [ebx] |
443 | mov eax, [ebx] |
444 | cmp eax, fs_NumHdServices |
444 | cmp eax, fs_NumHdServices |
445 | jae .not_impl |
445 | jae .not_impl |
446 | add ebx, 4 |
446 | add ebx, 4 |
447 | call dword [fs_HdServices + eax*4] |
447 | call dword [fs_HdServices + eax*4] |
448 | call free_hd_channel |
448 | call free_hd_channel |
449 | and [hd1_status], 0 |
449 | and [hd1_status], 0 |
450 | mov [esp+36], eax |
450 | mov [esp+36], eax |
451 | mov [esp+24], ebx |
451 | mov [esp+24], ebx |
452 | ret |
452 | ret |
453 | .not_impl: |
453 | .not_impl: |
454 | call free_hd_channel |
454 | call free_hd_channel |
455 | and [hd1_status], 0 |
455 | and [hd1_status], 0 |
456 | mov dword [esp+36], 2 ; not implemented |
456 | mov dword [esp+36], 2 ; not implemented |
457 | ret |
457 | ret |
458 | 458 | ||
459 | fs_HdServices: |
459 | fs_HdServices: |
460 | dd fs_HdRead |
460 | dd fs_HdRead |
461 | dd fs_HdReadFolder |
461 | dd fs_HdReadFolder |
462 | dd fs_HdRewrite |
462 | dd fs_HdRewrite |
463 | dd fs_HdWrite |
463 | dd fs_HdWrite |
464 | dd fs_HdSetFileEnd |
464 | dd fs_HdSetFileEnd |
465 | dd fs_HdGetFileInfo |
465 | dd fs_HdGetFileInfo |
466 | dd fs_HdSetFileInfo |
466 | dd fs_HdSetFileInfo |
467 | dd fs_HdExecute |
467 | dd 0 ;fs_HdExecute |
468 | dd fs_HdDelete |
468 | dd fs_HdDelete |
469 | fs_NumHdServices = ($ - fs_HdServices)/4 |
469 | fs_NumHdServices = ($ - fs_HdServices)/4 |
470 | 470 | ||
471 | ;******************************************************* |
471 | ;******************************************************* |
472 | fs_OnCd0: |
472 | fs_OnCd0: |
473 | call reserve_cd |
473 | call reserve_cd |
474 | mov [ChannelNumber],1 |
474 | mov [ChannelNumber],1 |
475 | mov [DiskNumber],0 |
475 | mov [DiskNumber],0 |
476 | push 6 |
476 | push 6 |
477 | jmp fs_OnCd |
477 | jmp fs_OnCd |
478 | fs_OnCd1: |
478 | fs_OnCd1: |
479 | call reserve_cd |
479 | call reserve_cd |
480 | mov [ChannelNumber],1 |
480 | mov [ChannelNumber],1 |
481 | mov [DiskNumber],1 |
481 | mov [DiskNumber],1 |
482 | push 4 |
482 | push 4 |
483 | jmp fs_OnCd |
483 | jmp fs_OnCd |
484 | fs_OnCd2: |
484 | fs_OnCd2: |
485 | call reserve_cd |
485 | call reserve_cd |
486 | mov [ChannelNumber],2 |
486 | mov [ChannelNumber],2 |
487 | mov [DiskNumber],0 |
487 | mov [DiskNumber],0 |
488 | push 2 |
488 | push 2 |
489 | jmp fs_OnCd |
489 | jmp fs_OnCd |
490 | fs_OnCd3: |
490 | fs_OnCd3: |
491 | call reserve_cd |
491 | call reserve_cd |
492 | mov [ChannelNumber],2 |
492 | mov [ChannelNumber],2 |
493 | mov [DiskNumber],1 |
493 | mov [DiskNumber],1 |
494 | push 0 |
494 | push 0 |
495 | fs_OnCd: |
495 | fs_OnCd: |
496 | call reserve_cd_channel |
496 | call reserve_cd_channel |
497 | pop eax |
497 | pop eax |
498 | mov [hdpos], eax |
498 | mov [hdpos], eax |
499 | cmp ecx, 0x100 |
499 | cmp ecx, 0x100 |
500 | jae .nf |
500 | jae .nf |
501 | push ecx ebx |
501 | push ecx ebx |
502 | mov cl,al |
502 | mov cl,al |
503 | mov bl,[0x40001] |
503 | mov bl,[0x40001] |
504 | shr bl,cl |
504 | shr bl,cl |
505 | test bl,2 |
505 | test bl,2 |
506 | pop ebx ecx |
506 | pop ebx ecx |
507 | 507 | ||
508 | jnz @f |
508 | jnz @f |
509 | .nf: |
509 | .nf: |
510 | call free_cd_channel |
510 | call free_cd_channel |
511 | and [cd_status], 0 |
511 | and [cd_status], 0 |
512 | mov dword [esp+36], 5 ; not found |
512 | mov dword [esp+36], 5 ; not found |
513 | ret |
513 | ret |
514 | @@: |
514 | @@: |
515 | mov ecx, [ebx+12] |
515 | mov ecx, [ebx+12] |
516 | mov edx, [ebx+16] |
516 | mov edx, [ebx+16] |
517 | add edx, std_application_base_address |
517 | add edx, std_application_base_address |
518 | mov eax, [ebx] |
518 | mov eax, [ebx] |
519 | cmp eax,fs_NumCdServices |
519 | cmp eax,fs_NumCdServices |
520 | jae .not_impl |
520 | jae .not_impl |
521 | add ebx, 4 |
521 | add ebx, 4 |
522 | call dword [fs_CdServices + eax*4] |
522 | call dword [fs_CdServices + eax*4] |
523 | call free_cd_channel |
523 | call free_cd_channel |
524 | and [cd_status], 0 |
524 | and [cd_status], 0 |
525 | mov [esp+36], eax |
525 | mov [esp+36], eax |
526 | mov [esp+24], ebx |
526 | mov [esp+24], ebx |
527 | ret |
527 | ret |
528 | .not_impl: |
528 | .not_impl: |
529 | call free_cd_channel |
529 | call free_cd_channel |
530 | and [cd_status], 0 |
530 | and [cd_status], 0 |
531 | mov dword [esp+36], 2 ; not implemented |
531 | mov dword [esp+36], 2 ; not implemented |
532 | ret |
532 | ret |
533 | 533 | ||
534 | fs_CdServices: |
534 | fs_CdServices: |
535 | dd fs_CdRead |
535 | dd fs_CdRead |
536 | dd fs_CdReadFolder |
536 | dd fs_CdReadFolder |
537 | dd fs_NotImplemented |
537 | dd fs_NotImplemented |
538 | dd fs_NotImplemented |
538 | dd fs_NotImplemented |
539 | dd fs_NotImplemented |
539 | dd fs_NotImplemented |
540 | dd fs_CdGetFileInfo |
540 | dd fs_CdGetFileInfo |
541 | dd fs_NotImplemented |
541 | dd fs_NotImplemented |
542 | dd fs_CdExecute |
542 | dd fs_CdExecute |
543 | fs_NumCdServices = ($ - fs_CdServices)/4 |
543 | fs_NumCdServices = ($ - fs_CdServices)/4 |
544 | 544 | ||
545 | ;******************************************************* |
545 | ;******************************************************* |
546 | 546 | ||
547 | fs_HasRamdisk: |
547 | fs_HasRamdisk: |
548 | mov al, 1 ; we always have ramdisk |
548 | mov al, 1 ; we always have ramdisk |
549 | ret |
549 | ret |
550 | 550 | ||
551 | fs_HasFloppy: |
551 | fs_HasFloppy: |
552 | cmp byte [0x40000], 0 |
552 | cmp byte [0x40000], 0 |
553 | setnz al |
553 | setnz al |
554 | ret |
554 | ret |
555 | 555 | ||
556 | fs_HasHd0: |
556 | fs_HasHd0: |
557 | mov al, [0x40001] |
557 | mov al, [0x40001] |
558 | and al, 11000000b |
558 | and al, 11000000b |
559 | cmp al, 01000000b |
559 | cmp al, 01000000b |
560 | setz al |
560 | setz al |
561 | ret |
561 | ret |
562 | fs_HasHd1: |
562 | fs_HasHd1: |
563 | mov al, [0x40001] |
563 | mov al, [0x40001] |
564 | and al, 00110000b |
564 | and al, 00110000b |
565 | cmp al, 00010000b |
565 | cmp al, 00010000b |
566 | setz al |
566 | setz al |
567 | ret |
567 | ret |
568 | fs_HasHd2: |
568 | fs_HasHd2: |
569 | mov al, [0x40001] |
569 | mov al, [0x40001] |
570 | and al, 00001100b |
570 | and al, 00001100b |
571 | cmp al, 00000100b |
571 | cmp al, 00000100b |
572 | setz al |
572 | setz al |
573 | ret |
573 | ret |
574 | fs_HasHd3: |
574 | fs_HasHd3: |
575 | mov al, [0x40001] |
575 | mov al, [0x40001] |
576 | and al, 00000011b |
576 | and al, 00000011b |
577 | cmp al, 00000001b |
577 | cmp al, 00000001b |
578 | setz al |
578 | setz al |
579 | ret |
579 | ret |
580 | 580 | ||
581 | ;******************************************************* |
581 | ;******************************************************* |
582 | fs_HasCd0: |
582 | fs_HasCd0: |
583 | mov al, [0x40001] |
583 | mov al, [0x40001] |
584 | and al, 11000000b |
584 | and al, 11000000b |
585 | cmp al, 10000000b |
585 | cmp al, 10000000b |
586 | setz al |
586 | setz al |
587 | ret |
587 | ret |
588 | fs_HasCd1: |
588 | fs_HasCd1: |
589 | mov al, [0x40001] |
589 | mov al, [0x40001] |
590 | and al, 00110000b |
590 | and al, 00110000b |
591 | cmp al, 00100000b |
591 | cmp al, 00100000b |
592 | setz al |
592 | setz al |
593 | ret |
593 | ret |
594 | fs_HasCd2: |
594 | fs_HasCd2: |
595 | mov al, [0x40001] |
595 | mov al, [0x40001] |
596 | and al, 00001100b |
596 | and al, 00001100b |
597 | cmp al, 00001000b |
597 | cmp al, 00001000b |
598 | setz al |
598 | setz al |
599 | ret |
599 | ret |
600 | fs_HasCd3: |
600 | fs_HasCd3: |
601 | mov al, [0x40001] |
601 | mov al, [0x40001] |
602 | and al, 00000011b |
602 | and al, 00000011b |
603 | cmp al, 00000010b |
603 | cmp al, 00000010b |
604 | setz al |
604 | setz al |
605 | ret |
605 | ret |
606 | ;******************************************************* |
606 | ;******************************************************* |
607 | 607 | ||
608 | ; fs_NextXXX functions: |
608 | ; fs_NextXXX functions: |
609 | ; in: eax = partition number, from which start to scan |
609 | ; in: eax = partition number, from which start to scan |
610 | ; out: CF=1 => no more partitions |
610 | ; out: CF=1 => no more partitions |
611 | ; CF=0 => eax=next partition number |
611 | ; CF=0 => eax=next partition number |
612 | 612 | ||
613 | fs_NextRamdisk: |
613 | fs_NextRamdisk: |
614 | ; we always have /rd/1 |
614 | ; we always have /rd/1 |
615 | test eax, eax |
615 | test eax, eax |
616 | stc |
616 | stc |
617 | jnz @f |
617 | jnz @f |
618 | mov al, 1 |
618 | mov al, 1 |
619 | clc |
619 | clc |
620 | @@: |
620 | @@: |
621 | ret |
621 | ret |
622 | 622 | ||
623 | fs_NextFloppy: |
623 | fs_NextFloppy: |
624 | ; we have /fd/1 iff (([0x40000] and 0xF0) != 0) and /fd/2 iff (([0x40000] and 0x0F) != 0) |
624 | ; we have /fd/1 iff (([0x40000] and 0xF0) != 0) and /fd/2 iff (([0x40000] and 0x0F) != 0) |
625 | test byte [0x40000], 0xF0 |
625 | test byte [0x40000], 0xF0 |
626 | jz .no1 |
626 | jz .no1 |
627 | test eax, eax |
627 | test eax, eax |
628 | jnz .no1 |
628 | jnz .no1 |
629 | inc eax |
629 | inc eax |
630 | ret ; CF cleared |
630 | ret ; CF cleared |
631 | .no1: |
631 | .no1: |
632 | test byte [0x40000], 0x0F |
632 | test byte [0x40000], 0x0F |
633 | jz .no2 |
633 | jz .no2 |
634 | cmp al, 2 |
634 | cmp al, 2 |
635 | jae .no2 |
635 | jae .no2 |
636 | mov al, 2 |
636 | mov al, 2 |
637 | clc |
637 | clc |
638 | ret |
638 | ret |
639 | .no2: |
639 | .no2: |
640 | stc |
640 | stc |
641 | ret |
641 | ret |
642 | 642 | ||
643 | ; on hdx, we have partitions from 1 to [0x40002+x] |
643 | ; on hdx, we have partitions from 1 to [0x40002+x] |
644 | fs_NextHd0: |
644 | fs_NextHd0: |
645 | push 0 |
645 | push 0 |
646 | jmp fs_NextHd |
646 | jmp fs_NextHd |
647 | fs_NextHd1: |
647 | fs_NextHd1: |
648 | push 1 |
648 | push 1 |
649 | jmp fs_NextHd |
649 | jmp fs_NextHd |
650 | fs_NextHd2: |
650 | fs_NextHd2: |
651 | push 2 |
651 | push 2 |
652 | jmp fs_NextHd |
652 | jmp fs_NextHd |
653 | fs_NextHd3: |
653 | fs_NextHd3: |
654 | push 3 |
654 | push 3 |
655 | fs_NextHd: |
655 | fs_NextHd: |
656 | pop ecx |
656 | pop ecx |
657 | movzx ecx, byte [0x40002+ecx] |
657 | movzx ecx, byte [0x40002+ecx] |
658 | cmp eax, ecx |
658 | cmp eax, ecx |
659 | jae fs_NextFloppy.no2 |
659 | jae fs_NextFloppy.no2 |
660 | inc eax |
660 | inc eax |
661 | clc |
661 | clc |
662 | ret |
662 | ret |
663 | 663 | ||
664 | ;******************************************************* |
664 | ;******************************************************* |
665 | fs_NextCd: |
665 | fs_NextCd: |
666 | ; we always have /cdX/1 |
666 | ; we always have /cdX/1 |
667 | test eax, eax |
667 | test eax, eax |
668 | stc |
668 | stc |
669 | jnz @f |
669 | jnz @f |
670 | mov al, 1 |
670 | mov al, 1 |
671 | clc |
671 | clc |
672 | @@: |
672 | @@: |
673 | ret |
673 | ret |
674 | ;******************************************************* |
674 | ;******************************************************* |