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     The record is read into memory at the current disk transfer area
     (DTA) address, specified by the most recent call to Int 21h
     Function 1Ah. If the size of the record and the location of the
     buffer are such that a segment overflow or wraparound would occur,
     the function fails with a return code of 02h.
 
     The number of bytes of data to be read is specified by the record
     size field (offset 0Eh) of the file control block (FCB).
 
     The file location of the data that will be read is specified by
     the combination of the current block field (offset 0Ch) and
     current record field (offset 20h) of the file control block (FCB).
     These fields are also automatically incremented by this function.
 
     If a partial record is read at the end-of-file, it is padded to
     the requested record length with zeros.
 
     [Version 3.0+]
     If the program is running on a network, the user must have Read
     access rights to the directory containing the file to be read.
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