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