Subversion Repositories Kolibri OS

Rev

Rev 19 | Rev 389 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 ha 1 
iglobal
19 mario79 2 
  ;function pointers.
3 
  fdc_irq_func    dd fdc_null
1 ha 4 
endg
5 
 
6 
uglobal
7 
  dmasize         db 0x0
8 
  dmamode         db 0x0
9 
endg
10 
 
11 
fdc_init:                               ;start with clean tracks.
12 
        mov edi,0xD201
13 
        mov al,0
14 
        mov ecx,160
15 
        rep stosb
16 
ret
17 
 
18 
fdc_filesave:                   ;ebx: cluster to be saved.
19 
        pusha                   ;returns immediately. does not trigger a write.
20 
        mov eax,ebx
21 
        add eax,31
22 
        mov bl,18
23 
        div bl
24 
        mov ah,0
25 
        add eax,0xD201
26 
        mov [eax],byte 1                ;This track is now dirty.
27 
        popa
28 
ret
29 
 
19 mario79 30 
fdc_irq:
31 
        call [fdc_irq_func]
32 
fdc_null:
1 ha 33 
ret
34 
 
19 mario79 35 
save_image:
36 
    call   reserve_flp
37 
    call   restorefatchain
38 
    pusha
39 
    call   check_label
40 
    cmp    [FDC_Status],0
41 
    jne    unnecessary_save_image
42 
    mov    [FDD_Track],0      ; Цилиндр
43 
    mov    [FDD_Head],0      ; Сторона
381 serge 44 
    mov    [FDD_Sector],1      ; Сектор
45 
    mov    esi,RAMDISK
19 mario79 46 
    call   SeekTrack
47 
save_image_1:
48 
    push   esi
49 
    call   take_data_from_application_1
50 
    pop    esi
51 
    add    esi,512
52 
    call   WriteSectWithRetr
53 
;    call   WriteSector
54 
    cmp    [FDC_Status],0
55 
    jne    unnecessary_save_image
56 
    inc    [FDD_Sector]
57 
    cmp    [FDD_Sector],19
58 
    jne    save_image_1
59 
    mov    [FDD_Sector],1
381 serge 60 
    inc    [FDD_Head]
19 mario79 61 
    cmp    [FDD_Head],2
62 
    jne    save_image_1
63 
    mov    [FDD_Head],0
64 
    inc    [FDD_Track]
65 
    call   SeekTrack
66 
    cmp    [FDD_Track],80
67 
    jne    save_image_1
68 
unnecessary_save_image:
69 
    mov    [fdc_irq_func],fdc_null
70 
    popa
71 
    mov    [flp_status],0
72 
    ret
1 ha 73