Int 21H Function 11H
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Description: Find First File
Searches the current directory on the designated drive for a matching
filename.
Input Output
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AH=11H If function successful (matching
DS:DX=segment:offset of file filename found)
control block AL=00H
and buffer at current disk trans-
fer area (DTA) address filled
in as an unopened normal FCB
or extended FCB, depending on
which type of FCB was input to
function
If function unsuccessful (no
matching filename found)
AL=FFH
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