forked from KolibriOS/kolibrios
119 lines
3.5 KiB
PHP
119 lines
3.5 KiB
PHP
;****************************************************
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; ïîèñê ëîãè÷åñêèõ äèñêîâ íà îáíàðóæåííûõ HDD
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; è çàíåñåíèå äàííûõ â îáëàñòü òàáëèöû
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; àâòîð Mario79
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;****************************************************
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mov [transfer_adress],0x4000a
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search_partitions_ide0:
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test [0x40001],byte 0x40
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jz search_partitions_ide1
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mov [hdbase],0x1f0
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mov [hdid],0x0
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mov [hdpos],1
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mov [fat32part],1
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search_partitions_ide0_1:
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call set_FAT32_variables
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cmp [problem_partition],0
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jne search_partitions_ide1
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inc byte [0x40002]
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call partition_data_transfer
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add [transfer_adress],100
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inc [fat32part]
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jmp search_partitions_ide0_1
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search_partitions_ide1:
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test [0x40001],byte 0x10
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jz search_partitions_ide2
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mov [hdbase],0x1f0
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mov [hdid],0x10
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mov [hdpos],2
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mov [fat32part],1
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search_partitions_ide1_1:
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call set_FAT32_variables
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cmp [problem_partition],0
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jne search_partitions_ide2
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inc byte [0x40003]
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call partition_data_transfer
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add [transfer_adress],100
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inc [fat32part]
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jmp search_partitions_ide1_1
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search_partitions_ide2:
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test [0x40001],byte 0x4
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jz search_partitions_ide3
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mov [hdbase],0x170
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mov [hdid],0x0
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mov [hdpos],3
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mov [fat32part],1
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search_partitions_ide2_1:
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call set_FAT32_variables
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cmp [problem_partition],0
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jne search_partitions_ide3
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inc byte [0x40004]
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call partition_data_transfer
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add [transfer_adress],100
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inc [fat32part]
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jmp search_partitions_ide2_1
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search_partitions_ide3:
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test [0x40001],byte 0x1
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jz end_search_partitions_ide
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mov [hdbase],0x170
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mov [hdid],0x10
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mov [hdpos],4
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mov [fat32part],1
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search_partitions_ide3_1:
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call set_FAT32_variables
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cmp [problem_partition],0
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jne end_search_partitions_ide
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inc byte [0x40005]
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call partition_data_transfer
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add [transfer_adress],100
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inc [fat32part]
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jmp search_partitions_ide3_1
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partition_data_transfer:
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mov edi,[transfer_adress]
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mov esi,PARTITION_START
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mov ecx,(file_system_data_size+3)/4
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rep movsd
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ret
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uglobal
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transfer_adress dd 0
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endg
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partition_data_transfer_1:
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; cli
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push edi
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mov edi,PARTITION_START
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mov esi,[transfer_adress]
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mov ecx,(file_system_data_size+3)/4
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rep movsd
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pop edi
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; sti
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ret
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end_search_partitions_ide:
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;PARTITION_START dd 0x3f
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;PARTITION_END dd 0
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;SECTORS_PER_FAT dd 0x1f3a
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;NUMBER_OF_FATS dd 0x2
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;SECTORS_PER_CLUSTER dd 0x8
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;BYTES_PER_SECTOR dd 0x200 ; Note: if BPS <> 512 need lots of changes
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;ROOT_CLUSTER dd 2 ; first rootdir cluster
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;FAT_START dd 0 ; start of fat table
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;ROOT_START dd 0 ; start of rootdir (only fat16)
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;ROOT_SECTORS dd 0 ; count of rootdir sectors (only fat16)
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;DATA_START dd 0 ; start of data area (=first cluster 2)
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;LAST_CLUSTER dd 0 ; last availabe cluster
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;ADR_FSINFO dd 0 ; used only by fat32
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;
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;fatRESERVED dd 0x0FFFFFF6
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;fatBAD dd 0x0FFFFFF7
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;fatEND dd 0x0FFFFFF8
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;fatMASK dd 0x0FFFFFFF
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;
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;fat_type db 0 ; 0=none, 16=fat16, 32=fat32
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