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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_NotImplemented |
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_NotImplemented |
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 | pop eax |
410 | pop eax |
411 | mov [hdpos], eax |
411 | mov [hdpos], eax |
412 | cmp ecx, 0x100 |
412 | cmp ecx, 0x100 |
413 | jae .nf |
413 | jae .nf |
414 | cmp cl, [0x40001+eax] |
414 | cmp cl, [0x40001+eax] |
415 | jbe @f |
415 | jbe @f |
416 | .nf: |
416 | .nf: |
417 | and [hd1_status], 0 |
417 | and [hd1_status], 0 |
418 | mov dword [esp+36], 5 ; not found |
418 | mov dword [esp+36], 5 ; not found |
419 | ret |
419 | ret |
420 | @@: |
420 | @@: |
421 | mov [fat32part], ecx |
421 | mov [fat32part], ecx |
422 | push ebx esi |
422 | push ebx esi |
423 | call choice_necessity_partition_1 |
423 | call choice_necessity_partition_1 |
424 | pop esi ebx |
424 | pop esi ebx |
425 | mov ecx, [ebx+12] |
425 | mov ecx, [ebx+12] |
426 | mov edx, [ebx+16] |
426 | mov edx, [ebx+16] |
427 | add edx, std_application_base_address |
427 | add edx, std_application_base_address |
428 | mov eax, [ebx] |
428 | mov eax, [ebx] |
429 | cmp eax, fs_NumHdServices |
429 | cmp eax, fs_NumHdServices |
430 | jae .not_impl |
430 | jae .not_impl |
431 | add ebx, 4 |
431 | add ebx, 4 |
432 | call dword [fs_HdServices + eax*4] |
432 | call dword [fs_HdServices + eax*4] |
433 | and [hd1_status], 0 |
433 | and [hd1_status], 0 |
434 | mov [esp+36], eax |
434 | mov [esp+36], eax |
435 | mov [esp+24], ebx |
435 | mov [esp+24], ebx |
436 | ret |
436 | ret |
437 | .not_impl: |
437 | .not_impl: |
438 | and [hd1_status], 0 |
438 | and [hd1_status], 0 |
439 | mov dword [esp+36], 2 ; not implemented |
439 | mov dword [esp+36], 2 ; not implemented |
440 | ret |
440 | ret |
441 | 441 | ||
442 | fs_HdServices: |
442 | fs_HdServices: |
443 | dd fs_HdRead |
443 | dd fs_HdRead |
444 | dd fs_HdReadFolder |
444 | dd fs_HdReadFolder |
445 | dd fs_HdRewrite |
445 | dd fs_HdRewrite |
446 | dd fs_NotImplemented |
446 | dd fs_NotImplemented |
447 | dd fs_NotImplemented |
447 | dd fs_NotImplemented |
448 | dd fs_HdGetFileInfo |
448 | dd fs_HdGetFileInfo |
449 | dd fs_HdSetFileInfo |
449 | dd fs_HdSetFileInfo |
450 | dd fs_HdExecute |
450 | dd fs_HdExecute |
451 | fs_NumHdServices = ($ - fs_HdServices)/4 |
451 | fs_NumHdServices = ($ - fs_HdServices)/4 |
452 | 452 | ||
453 | ;******************************************************* |
453 | ;******************************************************* |
454 | fs_OnCd0: |
454 | fs_OnCd0: |
455 | call reserve_cd |
455 | call reserve_cd |
456 | mov [ChannelNumber],1 |
456 | mov [ChannelNumber],1 |
457 | mov [DiskNumber],0 |
457 | mov [DiskNumber],0 |
458 | push 6 |
458 | push 6 |
459 | jmp fs_OnCd |
459 | jmp fs_OnCd |
460 | fs_OnCd1: |
460 | fs_OnCd1: |
461 | call reserve_cd |
461 | call reserve_cd |
462 | mov [ChannelNumber],1 |
462 | mov [ChannelNumber],1 |
463 | mov [DiskNumber],1 |
463 | mov [DiskNumber],1 |
464 | push 4 |
464 | push 4 |
465 | jmp fs_OnCd |
465 | jmp fs_OnCd |
466 | fs_OnCd2: |
466 | fs_OnCd2: |
467 | call reserve_cd |
467 | call reserve_cd |
468 | mov [ChannelNumber],2 |
468 | mov [ChannelNumber],2 |
469 | mov [DiskNumber],0 |
469 | mov [DiskNumber],0 |
470 | push 2 |
470 | push 2 |
471 | jmp fs_OnCd |
471 | jmp fs_OnCd |
472 | fs_OnCd3: |
472 | fs_OnCd3: |
473 | call reserve_cd |
473 | call reserve_cd |
474 | mov [ChannelNumber],2 |
474 | mov [ChannelNumber],2 |
475 | mov [DiskNumber],1 |
475 | mov [DiskNumber],1 |
476 | push 0 |
476 | push 0 |
477 | fs_OnCd: |
477 | fs_OnCd: |
478 | 478 | ||
479 | pop eax |
479 | pop eax |
480 | mov [hdpos], eax |
480 | mov [hdpos], eax |
481 | cmp ecx, 0x100 |
481 | cmp ecx, 0x100 |
482 | jae .nf |
482 | jae .nf |
483 | push cx bx |
483 | push cx bx |
484 | mov cl,al |
484 | mov cl,al |
485 | mov bl,[0x40001] |
485 | mov bl,[0x40001] |
486 | shr bl,cl |
486 | shr bl,cl |
487 | test bl,2 |
487 | test bl,2 |
488 | pop bx cx |
488 | pop bx cx |
489 | 489 | ||
490 | jnz @f |
490 | jnz @f |
491 | .nf: |
491 | .nf: |
492 | and [cd_status], 0 |
492 | and [cd_status], 0 |
493 | mov dword [esp+36], 5 ; not found |
493 | mov dword [esp+36], 5 ; not found |
494 | ret |
494 | ret |
495 | @@: |
495 | @@: |
496 | mov ecx, [ebx+12] |
496 | mov ecx, [ebx+12] |
497 | mov edx, [ebx+16] |
497 | mov edx, [ebx+16] |
498 | add edx, std_application_base_address |
498 | add edx, std_application_base_address |
499 | mov eax, [ebx] |
499 | mov eax, [ebx] |
500 | cmp eax,fs_NumCdServices |
500 | cmp eax,fs_NumCdServices |
501 | jae .not_impl |
501 | jae .not_impl |
502 | add ebx, 4 |
502 | add ebx, 4 |
503 | call dword [fs_CdServices + eax*4] |
503 | call dword [fs_CdServices + eax*4] |
504 | and [cd_status], 0 |
504 | and [cd_status], 0 |
505 | mov [esp+36], eax |
505 | mov [esp+36], eax |
506 | mov [esp+24], ebx |
506 | mov [esp+24], ebx |
507 | ret |
507 | ret |
508 | .not_impl: |
508 | .not_impl: |
509 | and [cd_status], 0 |
509 | and [cd_status], 0 |
510 | mov dword [esp+36], 2 ; not implemented |
510 | mov dword [esp+36], 2 ; not implemented |
511 | ret |
511 | ret |
512 | 512 | ||
513 | fs_CdServices: |
513 | fs_CdServices: |
514 | dd fs_CdRead |
514 | dd fs_CdRead |
515 | dd fs_CdReadFolder |
515 | dd fs_CdReadFolder |
516 | dd fs_NotImplemented |
516 | dd fs_NotImplemented |
517 | dd fs_NotImplemented |
517 | dd fs_NotImplemented |
518 | dd fs_NotImplemented |
518 | dd fs_NotImplemented |
519 | dd fs_CdGetFileInfo |
519 | dd fs_CdGetFileInfo |
520 | dd fs_NotImplemented |
520 | dd fs_NotImplemented |
- | 521 | dd fs_CdExecute |
|
521 | fs_NumCdServices = ($ - fs_CdServices)/4 |
522 | fs_NumCdServices = ($ - fs_CdServices)/4 |
522 | 523 | ||
523 | ;******************************************************* |
524 | ;******************************************************* |
524 | 525 | ||
525 | fs_HasRamdisk: |
526 | fs_HasRamdisk: |
526 | mov al, 1 ; we always have ramdisk |
527 | mov al, 1 ; we always have ramdisk |
527 | ret |
528 | ret |
528 | 529 | ||
529 | fs_HasFloppy: |
530 | fs_HasFloppy: |
530 | cmp byte [0x40000], 0 |
531 | cmp byte [0x40000], 0 |
531 | setnz al |
532 | setnz al |
532 | ret |
533 | ret |
533 | 534 | ||
534 | fs_HasHd0: |
535 | fs_HasHd0: |
535 | mov al, [0x40001] |
536 | mov al, [0x40001] |
536 | and al, 11000000b |
537 | and al, 11000000b |
537 | cmp al, 01000000b |
538 | cmp al, 01000000b |
538 | setz al |
539 | setz al |
539 | ret |
540 | ret |
540 | fs_HasHd1: |
541 | fs_HasHd1: |
541 | mov al, [0x40001] |
542 | mov al, [0x40001] |
542 | and al, 00110000b |
543 | and al, 00110000b |
543 | cmp al, 00010000b |
544 | cmp al, 00010000b |
544 | setz al |
545 | setz al |
545 | ret |
546 | ret |
546 | fs_HasHd2: |
547 | fs_HasHd2: |
547 | mov al, [0x40001] |
548 | mov al, [0x40001] |
548 | and al, 00001100b |
549 | and al, 00001100b |
549 | cmp al, 00000100b |
550 | cmp al, 00000100b |
550 | setz al |
551 | setz al |
551 | ret |
552 | ret |
552 | fs_HasHd3: |
553 | fs_HasHd3: |
553 | mov al, [0x40001] |
554 | mov al, [0x40001] |
554 | and al, 00000011b |
555 | and al, 00000011b |
555 | cmp al, 00000001b |
556 | cmp al, 00000001b |
556 | setz al |
557 | setz al |
557 | ret |
558 | ret |
558 | 559 | ||
559 | ;******************************************************* |
560 | ;******************************************************* |
560 | fs_HasCd0: |
561 | fs_HasCd0: |
561 | mov al, [0x40001] |
562 | mov al, [0x40001] |
562 | and al, 11000000b |
563 | and al, 11000000b |
563 | cmp al, 10000000b |
564 | cmp al, 10000000b |
564 | setz al |
565 | setz al |
565 | ret |
566 | ret |
566 | fs_HasCd1: |
567 | fs_HasCd1: |
567 | mov al, [0x40001] |
568 | mov al, [0x40001] |
568 | and al, 00110000b |
569 | and al, 00110000b |
569 | cmp al, 00100000b |
570 | cmp al, 00100000b |
570 | setz al |
571 | setz al |
571 | ret |
572 | ret |
572 | fs_HasCd2: |
573 | fs_HasCd2: |
573 | mov al, [0x40001] |
574 | mov al, [0x40001] |
574 | and al, 00001100b |
575 | and al, 00001100b |
575 | cmp al, 00001000b |
576 | cmp al, 00001000b |
576 | setz al |
577 | setz al |
577 | ret |
578 | ret |
578 | fs_HasCd3: |
579 | fs_HasCd3: |
579 | mov al, [0x40001] |
580 | mov al, [0x40001] |
580 | and al, 00000011b |
581 | and al, 00000011b |
581 | cmp al, 00000010b |
582 | cmp al, 00000010b |
582 | setz al |
583 | setz al |
583 | ret |
584 | ret |
584 | ;******************************************************* |
585 | ;******************************************************* |
585 | 586 | ||
586 | ; fs_NextXXX functions: |
587 | ; fs_NextXXX functions: |
587 | ; in: eax = partition number, from which start to scan |
588 | ; in: eax = partition number, from which start to scan |
588 | ; out: CF=1 => no more partitions |
589 | ; out: CF=1 => no more partitions |
589 | ; CF=0 => eax=next partition number |
590 | ; CF=0 => eax=next partition number |
590 | 591 | ||
591 | fs_NextRamdisk: |
592 | fs_NextRamdisk: |
592 | ; we always have /rd/1 |
593 | ; we always have /rd/1 |
593 | test eax, eax |
594 | test eax, eax |
594 | stc |
595 | stc |
595 | jnz @f |
596 | jnz @f |
596 | mov al, 1 |
597 | mov al, 1 |
597 | clc |
598 | clc |
598 | @@: |
599 | @@: |
599 | ret |
600 | ret |
600 | 601 | ||
601 | fs_NextFloppy: |
602 | fs_NextFloppy: |
602 | ; we have /fd/1 iff (([0x40000] and 0xF0) != 0) and /fd/2 iff (([0x40000] and 0x0F) != 0) |
603 | ; we have /fd/1 iff (([0x40000] and 0xF0) != 0) and /fd/2 iff (([0x40000] and 0x0F) != 0) |
603 | test byte [0x40000], 0xF0 |
604 | test byte [0x40000], 0xF0 |
604 | jz .no1 |
605 | jz .no1 |
605 | test eax, eax |
606 | test eax, eax |
606 | jnz .no1 |
607 | jnz .no1 |
607 | inc eax |
608 | inc eax |
608 | ret ; CF cleared |
609 | ret ; CF cleared |
609 | .no1: |
610 | .no1: |
610 | test byte [0x40000], 0x0F |
611 | test byte [0x40000], 0x0F |
611 | jz .no2 |
612 | jz .no2 |
612 | cmp al, 2 |
613 | cmp al, 2 |
613 | jae .no2 |
614 | jae .no2 |
614 | mov al, 2 |
615 | mov al, 2 |
615 | clc |
616 | clc |
616 | ret |
617 | ret |
617 | .no2: |
618 | .no2: |
618 | stc |
619 | stc |
619 | ret |
620 | ret |
620 | 621 | ||
621 | ; on hdx, we have partitions from 1 to [0x40002+x] |
622 | ; on hdx, we have partitions from 1 to [0x40002+x] |
622 | fs_NextHd0: |
623 | fs_NextHd0: |
623 | push 0 |
624 | push 0 |
624 | jmp fs_NextHd |
625 | jmp fs_NextHd |
625 | fs_NextHd1: |
626 | fs_NextHd1: |
626 | push 1 |
627 | push 1 |
627 | jmp fs_NextHd |
628 | jmp fs_NextHd |
628 | fs_NextHd2: |
629 | fs_NextHd2: |
629 | push 2 |
630 | push 2 |
630 | jmp fs_NextHd |
631 | jmp fs_NextHd |
631 | fs_NextHd3: |
632 | fs_NextHd3: |
632 | push 3 |
633 | push 3 |
633 | fs_NextHd: |
634 | fs_NextHd: |
634 | pop ecx |
635 | pop ecx |
635 | movzx ecx, byte [0x40002+ecx] |
636 | movzx ecx, byte [0x40002+ecx] |
636 | cmp eax, ecx |
637 | cmp eax, ecx |
637 | jae fs_NextFloppy.no2 |
638 | jae fs_NextFloppy.no2 |
638 | inc eax |
639 | inc eax |
639 | clc |
640 | clc |
640 | ret |
641 | ret |
641 | 642 | ||
642 | ;******************************************************* |
643 | ;******************************************************* |
643 | fs_NextCd: |
644 | fs_NextCd: |
644 | ; we always have /cdX/1 |
645 | ; we always have /cdX/1 |
645 | test eax, eax |
646 | test eax, eax |
646 | stc |
647 | stc |
647 | jnz @f |
648 | jnz @f |
648 | mov al, 1 |
649 | mov al, 1 |
649 | clc |
650 | clc |
650 | @@: |
651 | @@: |
651 | ret |
652 | ret |
652 | ;******************************************************* |
653 | ;******************************************************* |