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Rev 1376 Rev 2382
Line 3... Line 3...
3 
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
 3 
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
4 
;; Distributed under terms of the GNU General Public License    ;;
 4 
;; Distributed under terms of the GNU General Public License    ;;
5 
;;                                                              ;;
 5 
;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 6 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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7 
 
 7 
 
Line 8... Line 8...
8 
$Revision: 1376 $
 8 
$Revision: 2382 $
- 
 
 9 
 
9 
 
 10 
 
10 
 
 11 
;*************************************************************
11 
;*************************************************************
 12 
;* 13.02.2010 Find all partition and check supported FS
12 
;* 12.07.2007 Check all 4 entry of MBR and EMBR
 13 
;* 12.07.2007 Check all 4 entry of MBR and EMBR
13 
;* 29.04.2006 Elimination of hangup after the
 14 
;* 29.04.2006 Elimination of hangup after the
Line 24... Line 25...
24 
; Mario79
 25 
; Mario79
25 
; START place
 26 
; START place
26 
;******************************************************
 27 
;******************************************************
27 
PARTITION_START      dd 0x3f
 28 
PARTITION_START      dd 0x3f
28 
PARTITION_END        dd 0
 29 
PARTITION_END        dd 0
29 
fs_type              db 0       ; 0=none, 1=NTFS, 16=FAT16, 32=FAT32
 30 
fs_type              db 0       ; 1=NTFS, 2=EXT2/3, 16=FAT16, 32=FAT32
30 
align 4
 31 
align 4
Line 31... Line 32...
31 
 
 32 
 
32 
fs_dependent_data_start:
 33 
fs_dependent_data_start:
Line 52... Line 53...
52 
fatStartScan         dd 2
 53 
fatStartScan         dd 2
Line 53... Line 54...
53 
 
 54 
 
54 
fs_dependent_data_end:
 55 
fs_dependent_data_end:
55 
file_system_data_size = $ - PARTITION_START
 56 
file_system_data_size = $ - PARTITION_START
- 
 
 57 
if file_system_data_size > 96
56 
if file_system_data_size > 96
 58 
ERROR:
57 
ERROR: sizeof(file system data) too big!
 59 
       sizeof(file system data) too big!
Line 58... Line 60...
58 
end if
 60 
end if
59 
 
 61 
 
60 
virtual at fs_dependent_data_start
 62 
virtual at fs_dependent_data_start
Line 72... Line 74...
72 
.mft_retrieval_alloc    dd      ?
 74 
.mft_retrieval_alloc    dd      ?
73 
.mft_retrieval_end      dd      ?
 75 
.mft_retrieval_end      dd      ?
74 
.cur_index_size         dd      ?
 76 
.cur_index_size         dd      ?
75 
.cur_index_buf          dd      ?
 77 
.cur_index_buf          dd      ?
76 
if $ > fs_dependent_data_end
 78 
if $ > fs_dependent_data_end
- 
 
 79 
ERROR:
77 
ERROR: increase sizeof(fs_dependent_data)!
 80 
       increase sizeof(fs_dependent_data)!
- 
 
 81 
end if
- 
 
 82 
end virtual
- 
 
 83 
 
- 
 
 84 
virtual at fs_dependent_data_start
- 
 
 85 
; EXT2 data
- 
 
 86 
ext2_data:
- 
 
 87 
    .log_block_size                 dd ?
- 
 
 88 
    .block_size                     dd ?
- 
 
 89 
    .count_block_in_block           dd ?
- 
 
 90 
    .blocks_per_group               dd ?
- 
 
 91 
    .inodes_per_group               dd ?
- 
 
 92 
    .global_desc_table              dd ?
- 
 
 93 
    .root_inode                     dd ?        ; pointer to root inode in memory
- 
 
 94 
    .inode_size                     dd ?
- 
 
 95 
    .count_pointer_in_block         dd ?        ;  block_size / 4
- 
 
 96 
    .count_pointer_in_block_square  dd ?        ; (block_size / 4)**2
- 
 
 97 
    .ext2_save_block                dd ?    ; ¡«®ª ­  £«®¡ «ì­ãî 1 ¯à®æ¥¤ãàã
- 
 
 98 
    .ext2_temp_block                dd ?    ; ¡«®ª ¤«ï ¬¥«ª¨å ¯à®æ¥¤ãà
- 
 
 99 
    .ext2_save_inode                dd ?    ; inode ­  £«®¡ «ì­ãî ¯à®æ¥¤ãàã
- 
 
 100 
    .ext2_temp_inode                dd ?    ; inode ¤«ï ¬¥«ª¨å ¯à®æ¥¤ãà
- 
 
 101 
    .sb                             dd ?    ; superblock
- 
 
 102 
    .groups_count                   dd ?
- 
 
 103 
if $ > fs_dependent_data_end
- 
 
 104 
ERROR:
- 
 
 105 
       increase sizeof(fs_dependent_data)!
78 
end if
 106 
end if
79 
end virtual
 107 
end virtual
Line 80... Line 108...
80 
 
 108 
 
81 
;***************************************************************************
 109 
;***************************************************************************
Line 103... Line 131...
103 
    db    0xce                  ; DRDOS/secured: fat16, LBA-mapped
 131 
    db    0xce                  ; DRDOS/secured: fat16, LBA-mapped
104 
    db    0xd4                  ; Old Multiuser DOS secured: fat16 <32M
 132 
    db    0xd4                  ; Old Multiuser DOS secured: fat16 <32M
105 
    db    0xd6                  ; Old Multiuser DOS secured: fat16 >32M
 133 
    db    0xd6                  ; Old Multiuser DOS secured: fat16 >32M
106 
    db    0x07                  ; NTFS
 134 
    db    0x07                  ; NTFS
107 
    db    0x27                  ; NTFS, hidden
 135 
    db    0x27                  ; NTFS, hidden
- 
 
 136 
    db    0x83                  ; Linux native file system (ext2fs)
108 
  partition_types_end:
 137 
  partition_types_end:
Line 109... Line 138...
109 
 
 138 
 
110 
 
 139 
 
Line 116... Line 145...
116 
  extended_types_end:
 145 
  extended_types_end:
Line 117... Line 146...
117 
 
 146 
 
Line 118... Line 147...
118 
endg
 147 
endg
119 
 
 - 
 
120 
; Partition chain used:
 - 
 
121 
; MBR        ;   PARTITION2 ;   PARTITION3 ;   PARTITION4
 148 
 
122 
;==========================================================
 149 
; Partition chain used:
123 
; fat16/32   +-- fat16/32   +-- fat16/32   +-- fat16/32   +--
 150 
; MBR <---------------------
124 
; extended --+   extended --+   extended --+   extended --+
 151 
; |                         |
125 
; 0              0              0              0
 152 
; |-> PARTITION1          |
126 
; 0              0              0              0
 - 
 
127 
; Notes:
 153 
; |-> EXTENDED PARTITION -        ;not need be second partition
128 
; - extended partition need to be in second entry on table
 154 
; |-> PARTITION3
129 
; - it will skip over removed partitions
 155 
; |-> PARTITION4
- 
 
 156 
 
130 
 
 157 
set_PARTITION_variables:
131 
set_FAT32_variables:
 158 
set_FAT32_variables:        ;deprecated
132 
    mov   [problem_partition],0
 159 
        and     [problem_partition], 0
Line 133... Line 160...
133 
    call  reserve_hd1
 160 
        call    reserve_hd1
Line 134... Line 161...
134 
    call  reserve_hd_channel
 161 
        call    reserve_hd_channel
135 
 
 162 
 
Line 136... Line 163...
136 
    pushad
 163 
        pushad
137 
 
 164 
 
138 
    cmp   dword [hdpos],0
 165 
        cmp     dword [hdpos], 0
139 
    je    problem_hd
 166 
        je      problem_hd
Line 140... Line 167...
140 
 
 167 
 
141 
    xor   ecx,ecx               ; partition count
 168 
        xor     ecx, ecx        ; partition count
142 
    mov   edx,-1                ; flag for partition
 169 
    ;or    edx,-1                ; flag for partition
143 
    xor   eax,eax               ; read MBR
 170 
        xor     eax, eax        ; address MBR
Line 144... Line 171...
144 
    xor   ebp,ebp               ; extended partition start
 171 
        xor     ebp, ebp        ; extended partition start
145 
 
 172 
 
Line 155... Line 182...
155 
    cmp  [hd_error],0
 182 
        cmp     [hd_error], 0
156 
    jne  problem_hd
 183 
        jne     problem_hd
Line 157... Line 184...
157 
 
 184 
 
158 
    cmp   word [ebx+0x1fe],0xaa55 ; is it valid boot sector?
 185 
        cmp     word [ebx+0x1fe], 0xaa55; is it valid boot sector?
- 
 
 186 
        jnz     end_partition_chain
159 
    jnz   end_partition_chain
 187 
        push    eax                ; push only one time
160 
    cmp   dword [ebx+0x1be+0xc],0 ; skip over empty partition
 - 
 
161 
;    jz    next_partition
 188 
        cmp     dword [ebx+0x1be+0xc], 0; skip over empty partition
162 
    jnz    .next_primary_partition
 189 
        jnz     test_primary_partition_0
163 
    cmp   dword [ebx+0x1be+0xc+16],0
 190 
        cmp     dword [ebx+0x1be+0xc+16], 0
164 
    jnz    next_primary_partition
 191 
        jnz     test_primary_partition_1
165 
    cmp   dword [ebx+0x1be+0xc+16+16],0
 192 
        cmp     dword [ebx+0x1be+0xc+16+16], 0
166 
    jnz    next_primary_partition_1
 193 
        jnz     test_primary_partition_2
167 
    cmp   dword [ebx+0x1be+0xc+16+16+16],0
 194 
        cmp     dword [ebx+0x1be+0xc+16+16+16], 0
- 
 
 195 
        jnz     test_primary_partition_3
168 
    jnz    next_primary_partition_2
 196 
        pop     eax
Line 169... Line 197...
169 
    jmp   next_partition
 197 
        jmp     end_partition_chain
170
- 
 
171 
.next_primary_partition:
 198 
 
172 
    push  eax
 199 
test_primary_partition_0:
173 
    mov   al,[ebx+0x1be+4]      ; get primary partition type
 - 
 
174 
    call  scan_partition_types
 200 
        mov     al, [ebx+0x1be+4]; get primary partition type
Line 175... Line 201...
175 
    pop   eax
 201 
        call    scan_partition_types
176 
    jnz   next_primary_partition        ; no. skip over
 202 
        jnz     test_primary_partition_1; no. skip over
177 
 
 203 
 
Line -... Line 204...
- 
 
 204 
        inc     ecx
178 
    inc   ecx
 205 
        cmp     ecx, [known_part]; is it wanted partition?
179 
    cmp   ecx,[fat32part]       ; is it wanted partition?
 206 
        jnz     test_primary_partition_1; no
- 
 
 207 
 
180 
    jnz   next_primary_partition        ; no
 208 
        pop     eax
181 
 
 209 
        ;mov     edx, eax                ; start sector
- 
 
 210 
        add     eax, [ebx+0x1be+8]      ; add relative start
182 
        mov     edx, eax                ; start sector
 211 
        ;mov     [PARTITON_START],edx
183 
        add     edx, [ebx+0x1be+8]      ; add relative start
 212 
        ;push    edx
184 
        push    edx
 213 
        mov     edx, [ebx+0x1be+12]     ; length
185 
        add     edx, [ebx+0x1be+12]     ; add length
 214 
        ;add     edx, eax                ; add length
186 
        dec     edx                     ; PARTITION_END is inclusive
 215 
        ;dec     edx                     ; PARTITION_END is inclusive
187 
        mov     [PARTITION_END], edx    ; note that this can be changed
 216 
        ;mov     [PARTITION_END], edx    ; note that this can be changed
- 
 
 217 
                                        ; when file system data will be available
Line 188... Line 218...
188 
                                        ; when file system data will be available
 218 
        mov     cl, [ebx+0x1be+4]       ; fs_type
189 
        mov     dl, [ebx+0x1be+4]
 - 
 
190 
        mov     [fs_type], dl           ; save for FS recognizer (separate FAT vs NTFS)
 219 
        ;mov     [fs_type], dl           ; save for FS recognizer (separate FAT vs NTFS)
191 
        pop     edx
 220 
        ;pop     edx
192 
 
 - 
 
193 
next_primary_partition:
 221 
        jmp     hd_and_partition_ok
Line 194... Line 222...
194 
    push  eax
 222 
 
195 
    mov   al,[ebx+0x1be+4+16]      ; get primary partition type
 223 
test_primary_partition_1:
196 
    call  scan_partition_types
 224 
        mov     al, [ebx+0x1be+4+16]; get primary partition type
Line -... Line 225...
- 
 
 225 
        call    scan_partition_types
- 
 
 226 
        jnz     test_primary_partition_2  ; no. skip over
- 
 
 227 
 
- 
 
 228 
        inc     ecx
- 
 
 229 
        cmp     ecx, [known_part]; is it wanted partition?
- 
 
 230 
        jnz     test_primary_partition_2  ; no
197 
    pop   eax
 231 
 
198 
    jnz   next_primary_partition_1        ; no. skip over
 232 
        pop     eax
199 
 
 233 
        add     eax, [ebx+0x1be+8+16]
200 
    inc   ecx
 234 
        mov     edx, [ebx+0x1be+12+16]
201 
    cmp   ecx,[fat32part]       ; is it wanted partition?
 235 
        mov     cl, [ebx+0x1be+4+16]
202 
    jnz   next_primary_partition_1        ; no
 236 
        jmp     hd_and_partition_ok
203 
 
 237 
 
204 
        mov     edx, eax
 238 
        ;mov     edx, eax
205 
        add     edx, [ebx+0x1be+8+16]
 239 
        ;add     edx, [ebx+0x1be+8+16]
Line 206... Line 240...
206 
        push    edx
 240 
        ;push    edx
207 
        add     edx, [ebx+0x1be+12+16]
 - 
 
208 
        dec     edx
 241 
        ;add     edx, [ebx+0x1be+12+16]
209 
        mov     [PARTITION_END], edx
 242 
        ;dec     edx
210 
        mov     dl, [ebx+0x1be+4+16]
 - 
 
211 
        mov     [fs_type], dl
 243 
        ;mov     [PARTITION_END], edx
Line 212... Line 244...
212 
        pop     edx
 244 
        ;mov     al, [ebx+0x1be+4+16]
213 
 
 245 
        ;mov     [fs_type], dl
214 
next_primary_partition_1:
 246 
        ;pop     edx
Line -... Line 247...
- 
 
 247 
 
- 
 
 248 
test_primary_partition_2:
- 
 
 249 
        mov     al, [ebx+0x1be+4+16+16]; get primary partition type
- 
 
 250 
        call    scan_partition_types
- 
 
 251 
        jnz     test_primary_partition_3  ; no. skip over
215 
    push  eax
 252 
 
216 
    mov   al,[ebx+0x1be+4+16+16]      ; get primary partition type
 253 
        inc     ecx
217 
    call  scan_partition_types
 254 
        cmp     ecx, [known_part]; is it wanted partition?
218 
    pop   eax
 255 
        jnz     test_primary_partition_3  ; no
219 
    jnz   next_primary_partition_2        ; no. skip over
 256 
 
220 
 
 257 
        pop     eax
221 
    inc   ecx
 258 
        add     eax, [ebx+0x1be+8+16+16]
222 
    cmp   ecx,[fat32part]       ; is it wanted partition?
 259 
        mov     edx, [ebx+0x1be+12+16+16]
223 
    jnz   next_primary_partition_2        ; no
 260 
        mov     cl, [ebx+0x1be+4+16+16]
Line 224... Line 261...
224 
 
 261 
        jmp     hd_and_partition_ok
225 
        mov     edx, eax
 - 
 
226 
        add     edx, [ebx+0x1be+8+16+16]
 262 
        ;mov     edx, eax
227 
        push    edx
 263 
        ;add     edx, [ebx+0x1be+8+16+16]
228 
        add     edx, [ebx+0x1be+12+16+16]
 - 
 
229 
        dec     edx
 264 
        ;push    edx
Line 230... Line 265...
230 
        mov     [PARTITION_END], edx
 265 
        ;add     edx, [ebx+0x1be+12+16+16]
231 
        mov     dl, [ebx+0x1be+4+16+16]
 266 
        ;dec     edx
232 
        mov     [fs_type], dl
 267 
        ;mov     [PARTITION_END], edx
Line -... Line 268...
- 
 
 268 
        ;mov     al, [ebx+0x1be+4+16+16]
- 
 
 269 
        ;mov     [fs_type], dl
- 
 
 270 
        ;pop     edx
- 
 
 271 
 
- 
 
 272 
test_primary_partition_3:
- 
 
 273 
        mov     al, [ebx+0x1be+4+16+16+16]; get primary partition type
233 
        pop     edx
 274 
        call    scan_partition_types
234 
 
 275 
        jnz     test_ext_partition_0  ; no. skip over
235 
next_primary_partition_2:
 276 
 
236 
    push  eax
 277 
        inc     ecx
237 
    mov   al,[ebx+0x1be+4+16+16+16]      ; get primary partition type
 278 
        cmp     ecx, [known_part]; is it wanted partition?
238 
    call  scan_partition_types
 279 
        jnz     test_ext_partition_0; no
239 
    pop   eax
 280 
 
240 
    jnz   next_partition        ; no. skip over
 281 
        pop     eax
241 
 
 282 
        add     eax, [ebx+0x1be+8+16+16+16]
Line 242... Line 283...
242 
    inc   ecx
 283 
        mov     edx, [ebx+0x1be+12+16+16+16]
243 
    cmp   ecx,[fat32part]       ; is it wanted partition?
 284 
        mov     cl, [ebx+0x1be+4+16+16+16]
244 
    jnz   next_partition        ; no
 285 
        jmp     hd_and_partition_ok
245 
 
 286 
 
246 
        mov     edx, eax
 - 
 
247 
        add     edx, [ebx+0x1be+8+16+16+16]
 287 
        ;mov     edx, eax
Line 248... Line 288...
248 
        push    edx
 288 
        ;add     edx, [ebx+0x1be+8+16+16+16]
249 
        add     edx, [ebx+0x1be+12+16+16+16]
 289 
        ;push    edx
250 
        dec     edx
 290 
        ;add     edx, [ebx+0x1be+12+16+16+16]
Line 251... Line 291...
251 
        mov     [PARTITION_END], edx
 291 
        ;dec     edx
252 
        mov     dl, [ebx+0x1be+4+16+16+16]
 - 
 
253 
        mov     [fs_type], dl
 292 
        ;mov     [PARTITION_END], edx
254 
        pop     edx
 293 
        ;mov     al, [ebx+0x1be+4+16+16+16]
255 
 
 - 
 
256 
next_partition:
 294 
        ;mov     [fs_type], dl
Line 257... Line 295...
257 
    push  eax
 295 
        ;pop     edx
258 
    mov   al,[ebx+0x1be+4]   ; get extended partition type
 296 
 
259 
    call  scan_extended_types
 297 
test_ext_partition_0:
Line 260... Line 298...
260 
    pop   eax
 298 
        pop     eax         ; ¯à®áâ® ¢ëª¨¤ë¢ ¥¬ ¨§ á⥪ 
261 
    jnz   next_partition_1
 - 
 
262 
 
 299 
        mov     al, [ebx+0x1be+4]; get extended partition type
263 
    mov   eax,[ebx+0x1be+8]     ; add relative start
 300 
        call    scan_extended_types
264 
    test  eax,eax               ; is there extended partition?
 - 
 
265 
    jnz   new_partition         ; yes. read it
 301 
        jnz     test_ext_partition_1
Line 266... Line 302...
266 
 
 302 
 
267 
next_partition_1:
 303 
        mov     eax, [ebx+0x1be+8]; add relative start
268 
    push  eax
 304 
        test    eax, eax        ; is there extended partition?
Line 269... Line 305...
269 
    mov   al,[ebx+0x1be+4+16]   ; get extended partition type
 305 
        jnz     new_mbr         ; yes. read it
270 
    call  scan_extended_types
 - 
 
271 
    pop   eax
 306 
 
272 
    jnz   next_partition_2
 307 
test_ext_partition_1:
273 
 
 - 
 
274 
    mov   eax,[ebx+0x1be+8+16]     ; add relative start
 308 
        mov     al, [ebx+0x1be+4+16]; get extended partition type
Line 275... Line 309...
275 
    test  eax,eax               ; is there extended partition?
 309 
        call    scan_extended_types
276 
    jnz   new_partition         ; yes. read it
 310 
        jnz     test_ext_partition_2
277 
 
 311 
 
Line 278... Line 312...
278 
next_partition_2:
 312 
        mov     eax, [ebx+0x1be+8+16]; add relative start
279 
    push  eax
 313 
        test    eax, eax        ; is there extended partition?
- 
 
 314 
        jnz     new_mbr         ; yes. read it
- 
 
 315 
 
- 
 
 316 
test_ext_partition_2:
- 
 
 317 
        mov     al, [ebx+0x1be+4+16+16]; get extended partition type
- 
 
 318 
        call    scan_extended_types
- 
 
 319 
        jnz     test_ext_partition_3
- 
 
 320 
 
Line 280... Line -...
280 
    mov   al,[ebx+0x1be+4+16+16]   ; get extended partition type
 - 
 
281 
    call  scan_extended_types
 - 
 
282 
    pop   eax
 - 
 
Line 283... Line 321...
283 
    jnz   next_partition_3
 321 
        mov     eax, [ebx+0x1be+8+16+16]; add relative start
284 
 
 322 
        test    eax, eax        ; is there extended partition?
285 
    mov   eax,[ebx+0x1be+8+16+16]     ; add relative start
 323 
        jnz     new_mbr         ; yes. read it
286 
    test  eax,eax               ; is there extended partition?
 324 
 
Line 321... Line 359...
321 
    repne scasb                 ; is it extended partition?
 359 
        repne scasb             ; is it extended partition?
322 
    pop   ecx
 360 
        pop     ecx
323 
    ret
 361 
        ret
Line 324... Line 362...
324 
 
 362 
 
325 
problem_fat_dec_count:          ; bootsector is missing or another problem
 363 
problem_fat_dec_count:          ; bootsector is missing or another problem
Line 326... Line 364...
326 
    dec   [partition_count]     ; remove it from partition_count
 364 
;    dec   [partition_count]     ; remove it from partition_count
327 
 
 365 
 
328 
problem_partition_or_fat:
 - 
 
Line -... Line 366...
- 
 
 366 
problem_partition_or_fat:
- 
 
 367 
        or      [problem_partition], 1
329 
problem_hd:
 368 
 
330 
    popad
 369 
return_from_part_set:
331 
 
 370 
        popad
332 
    mov   [fs_type],0
 - 
 
333 
    call  free_hd_channel
 371 
    ;mov   [fs_type],0
Line 334... Line 372...
334 
    mov   [hd1_status],0        ; free
 372 
        call    free_hd_channel
- 
 
 373 
        mov     [hd1_status], 0 ; free
- 
 
 374 
        ret
- 
 
 375 
 
335 
    mov   [problem_partition],1
 376 
hd_and_partition_ok:
336 
    ret
 377 
 
- 
 
 378 
;eax = PARTITION_START edx=PARTITION_LENGTH cl=fs_type
- 
 
 379 
        mov     [fs_type], cl
- 
 
 380 
    ;mov   eax,edx
- 
 
 381 
        mov     [PARTITION_START], eax
337 
 
 382 
        add     edx, eax
338 
hd_and_partition_ok:
 383 
        dec     edx
339 
    mov   eax,edx
 384 
        mov     [PARTITION_END], edx
Line 340... Line 385...
340 
    mov   [PARTITION_START],eax
 385 
 
341 
        mov     edx, [PARTITION_END]
 386 
   ;     mov     edx, [PARTITION_END]
342 
        sub     edx, eax
 387 
   ;     sub     edx, eax
343 
        inc     edx     ; edx = length of partition
 388 
   ;     inc     edx     ; edx = length of partition § ç¥¬ ®­® ­ ¬??
Line 364... Line 409...
364 
        mov     eax, edx
 409 
        mov     eax, edx
365 
        shr     eax, 1
 410 
        shr     eax, 1
366 
        add     eax, [PARTITION_START]
 411 
        add     eax, [PARTITION_START]
367 
        call    hd_read
 412 
        call    hd_read
368 
        cmp     [hd_error], 0
 413 
        cmp     [hd_error], 0
369 
        jnz     problem_fat_dec_count   ; ­¥ áã¤ì¡ ...
 414 
        jnz     problem_fat_dec_count   ; no chance...
370 
boot_read_ok:
 415 
boot_read_ok:
371 
;        mov     [hd_setup], 0
 - 
 
- 
 
 416 
 
372 
; if we are running on NTFS, check bootsector
 417 
; if we are running on NTFS, check bootsector
373 
;        cmp     [fs_type], 7
 - 
 
374 
;        jz      ntfs_setup
 - 
 
- 
 
 418 
 
375 
        call    ntfs_test_bootsec
 419 
        call    ntfs_test_bootsec      ; test ntfs
376 
        jnc     ntfs_setup
 420 
        jnc     ntfs_setup
Line -... Line 421...
- 
 
 421 
 
- 
 
 422 
        call    ext2_test_superblock   ; test ext2fs
- 
 
 423 
        jnc     ext2_setup
- 
 
 424 
 
- 
 
 425 
        mov     eax, [PARTITION_START]  ;ext2 test changes [buffer]
- 
 
 426 
        call    hd_read
- 
 
 427 
        cmp     [hd_error], 0
- 
 
 428 
        jnz     problem_fat_dec_count
377 
 
 429 
 
378 
    cmp   word [ebx+0x1fe],0xaa55 ; is it valid boot sector?
 430 
        cmp     word [ebx+0x1fe], 0xaa55; is it valid boot sector?
Line 379... Line 431...
379 
    jnz   problem_fat_dec_count
 431 
        jnz     problem_fat_dec_count
380 
 
 432 
 
Line 477... Line 529...
477 
    mov   [fatMASK],0x0000FFFF
 529 
        mov     [fatMASK], 0x0000FFFF
478 
    mov   [fs_type],16         ; Fat16
 530 
        mov     [fs_type], 16  ; Fat16
479 
    call  free_hd_channel
 531 
        call    free_hd_channel
480 
    mov   [hd1_status],0        ; free
 532 
        mov     [hd1_status], 0 ; free
481 
    ret
 533 
        ret
- 
 
 534 
>