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X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 21 - dos - random block read
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INT 21 - DOS - RANDOM BLOCK READ
AH = 27h
DS:DX -> FCB (see AH=0Fh)
CX = number of records to be read
Return: AL = status
00h successful read
01h end of file
02h data transfer area too small
03h partial record, EOF
SeeAlso: AH=3Fh
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