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425 | victor | 1 | $Revision: 431 $ |
431 | serge | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;; |
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6 | ;; Distributed under terms of the GNU General Public License ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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8 | |||
9 | |||
1 | ha | 10 | iglobal |
19 | mario79 | 11 | ;function pointers. |
12 | fdc_irq_func dd fdc_null |
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1 | ha | 13 | endg |
14 | |||
15 | uglobal |
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16 | dmasize db 0x0 |
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17 | dmamode db 0x0 |
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18 | endg |
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19 | |||
20 | fdc_init: ;start with clean tracks. |
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389 | serge | 21 | mov edi,OS_BASE+0xD201 |
1 | ha | 22 | mov al,0 |
23 | mov ecx,160 |
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24 | rep stosb |
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25 | ret |
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26 | |||
27 | fdc_filesave: ;ebx: cluster to be saved. |
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28 | pusha ;returns immediately. does not trigger a write. |
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29 | mov eax,ebx |
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30 | add eax,31 |
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31 | mov bl,18 |
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32 | div bl |
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33 | mov ah,0 |
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389 | serge | 34 | add eax,OS_BASE+0xD201 |
1 | ha | 35 | mov [eax],byte 1 ;This track is now dirty. |
36 | popa |
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37 | ret |
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38 | |||
19 | mario79 | 39 | fdc_irq: |
40 | call [fdc_irq_func] |
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41 | fdc_null: |
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1 | ha | 42 | ret |
43 | |||
19 | mario79 | 44 | save_image: |
45 | call reserve_flp |
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46 | call restorefatchain |
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47 | pusha |
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48 | call check_label |
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49 | cmp [FDC_Status],0 |
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50 | jne unnecessary_save_image |
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51 | mov [FDD_Track],0 ; Цилиндр |
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52 | mov [FDD_Head],0 ; Сторона |
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381 | serge | 53 | mov [FDD_Sector],1 ; Сектор |
54 | mov esi,RAMDISK |
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19 | mario79 | 55 | call SeekTrack |
56 | save_image_1: |
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57 | push esi |
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58 | call take_data_from_application_1 |
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59 | pop esi |
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60 | add esi,512 |
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61 | call WriteSectWithRetr |
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62 | ; call WriteSector |
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63 | cmp [FDC_Status],0 |
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64 | jne unnecessary_save_image |
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65 | inc [FDD_Sector] |
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66 | cmp [FDD_Sector],19 |
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67 | jne save_image_1 |
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68 | mov [FDD_Sector],1 |
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381 | serge | 69 | inc [FDD_Head] |
19 | mario79 | 70 | cmp [FDD_Head],2 |
71 | jne save_image_1 |
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72 | mov [FDD_Head],0 |
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73 | inc [FDD_Track] |
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74 | call SeekTrack |
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75 | cmp [FDD_Track],80 |
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76 | jne save_image_1 |
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77 | unnecessary_save_image: |
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78 | mov [fdc_irq_func],fdc_null |
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79 | popa |
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80 | mov [flp_status],0 |
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81 | ret |
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1 | ha | 82 |