磁盘的LBA读取
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INT 13h AH=41h: Check Extensions Present
參數(shù):
寄存器:
AH 41h = function number for extensions check
DL drive index (e.g. 1st HDD = 80h)
BX 55AAh
返回值:
CF Set On Not Present, Clear If Present
AH Error Code or Major Version Number
BX AA55h
CX Interface support bitmask:
1 - Device Access using the packet structure
2 - Drive Locking and Ejecting
4 - Enhanced Disk Drive Support (EDD)
INT 13h AH=42h: Extended Read Sectors From Drive
參數(shù)&#
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