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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;**************************************************** |
2 | ; поиск логических дисков на обнаруженных HDD |
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3 | ; и занесение данных в область таблицы |
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4 | ; автор Mario79 |
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5 | ;**************************************************** |
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412 | serge | 6 | mov [transfer_adress],DRIVE_DATA+0xa |
1 | ha | 7 | search_partitions_ide0: |
412 | serge | 8 | test [DRIVE_DATA+1],byte 0x40 |
1 | ha | 9 | jz search_partitions_ide1 |
10 | mov [hdbase],0x1f0 |
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11 | mov [hdid],0x0 |
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12 | mov [hdpos],1 |
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13 | mov [fat32part],1 |
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14 | search_partitions_ide0_1: |
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15 | call set_FAT32_variables |
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16 | cmp [problem_partition],0 |
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17 | jne search_partitions_ide1 |
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412 | serge | 18 | inc byte [DRIVE_DATA+2] |
1 | ha | 19 | call partition_data_transfer |
20 | add [transfer_adress],100 |
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21 | inc [fat32part] |
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22 | jmp search_partitions_ide0_1 |
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23 | |||
24 | search_partitions_ide1: |
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412 | serge | 25 | test [DRIVE_DATA+1],byte 0x10 |
1 | ha | 26 | jz search_partitions_ide2 |
27 | mov [hdbase],0x1f0 |
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28 | mov [hdid],0x10 |
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29 | mov [hdpos],2 |
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30 | mov [fat32part],1 |
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31 | search_partitions_ide1_1: |
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32 | call set_FAT32_variables |
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33 | cmp [problem_partition],0 |
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34 | jne search_partitions_ide2 |
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412 | serge | 35 | inc byte [DRIVE_DATA+3] |
1 | ha | 36 | call partition_data_transfer |
37 | add [transfer_adress],100 |
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38 | inc [fat32part] |
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39 | jmp search_partitions_ide1_1 |
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40 | |||
41 | search_partitions_ide2: |
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412 | serge | 42 | test [DRIVE_DATA+1],byte 0x4 |
1 | ha | 43 | jz search_partitions_ide3 |
44 | mov [hdbase],0x170 |
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45 | mov [hdid],0x0 |
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46 | mov [hdpos],3 |
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47 | mov [fat32part],1 |
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48 | search_partitions_ide2_1: |
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49 | call set_FAT32_variables |
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50 | cmp [problem_partition],0 |
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51 | jne search_partitions_ide3 |
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412 | serge | 52 | inc byte [DRIVE_DATA+4] |
1 | ha | 53 | call partition_data_transfer |
54 | add [transfer_adress],100 |
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55 | inc [fat32part] |
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56 | jmp search_partitions_ide2_1 |
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57 | |||
58 | search_partitions_ide3: |
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412 | serge | 59 | test [DRIVE_DATA+1],byte 0x1 |
1 | ha | 60 | jz end_search_partitions_ide |
61 | mov [hdbase],0x170 |
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62 | mov [hdid],0x10 |
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63 | mov [hdpos],4 |
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64 | mov [fat32part],1 |
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65 | search_partitions_ide3_1: |
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66 | call set_FAT32_variables |
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67 | cmp [problem_partition],0 |
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68 | jne end_search_partitions_ide |
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412 | serge | 69 | inc byte [DRIVE_DATA+5] |
1 | ha | 70 | call partition_data_transfer |
71 | add [transfer_adress],100 |
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72 | inc [fat32part] |
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73 | jmp search_partitions_ide3_1 |
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74 | |||
412 | serge | 75 | |
76 | partition_data_transfer: |
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1 | ha | 77 | mov edi,[transfer_adress] |
78 | mov esi,PARTITION_START |
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321 | diamond | 79 | mov ecx,(file_system_data_size+3)/4 |
80 | rep movsd |
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1 | ha | 81 | ret |
321 | diamond | 82 | uglobal |
1 | ha | 83 | transfer_adress dd 0 |
321 | diamond | 84 | endg |
1 | ha | 85 | partition_data_transfer_1: |
321 | diamond | 86 | ; cli |
5 | halyavin | 87 | push edi |
1 | ha | 88 | mov edi,PARTITION_START |
89 | mov esi,[transfer_adress] |
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321 | diamond | 90 | mov ecx,(file_system_data_size+3)/4 |
91 | rep movsd |
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5 | halyavin | 92 | pop edi |
321 | diamond | 93 | ; sti |
1 | ha | 94 | ret |
95 | |||
96 | end_search_partitions_ide: |
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97 | |||
98 | ;PARTITION_START dd 0x3f |
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99 | ;PARTITION_END dd 0 |
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100 | ;SECTORS_PER_FAT dd 0x1f3a |
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101 | ;NUMBER_OF_FATS dd 0x2 |
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102 | ;SECTORS_PER_CLUSTER dd 0x8 |
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103 | ;BYTES_PER_SECTOR dd 0x200 ; Note: if BPS <> 512 need lots of changes |
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104 | ;ROOT_CLUSTER dd 2 ; first rootdir cluster |
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105 | ;FAT_START dd 0 ; start of fat table |
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106 | ;ROOT_START dd 0 ; start of rootdir (only fat16) |
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107 | ;ROOT_SECTORS dd 0 ; count of rootdir sectors (only fat16) |
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108 | ;DATA_START dd 0 ; start of data area (=first cluster 2) |
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109 | ;LAST_CLUSTER dd 0 ; last availabe cluster |
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110 | ;ADR_FSINFO dd 0 ; used only by fat32 |
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111 | ; |
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112 | ;fatRESERVED dd 0x0FFFFFF6 |
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113 | ;fatBAD dd 0x0FFFFFF7 |
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114 | ;fatEND dd 0x0FFFFFF8 |
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115 | ;fatMASK dd 0x0FFFFFFF |
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116 | ; |
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117 | ;fat_type db 0 ; 0=none, 16=fat16, 32=fat32> |
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118 |