◄INT 21H Summary►  ◄Contents►  ◄Index►  ◄INT Instruction►
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Hex #  Dec #     Name
1AH      26      Set Data Transfer Area (DTA) Address
2FH      47      Get DTA Address
3FH      63      Read File or Device
40H      64      Write to File or Device
42H      66      Set File Pointer (current location in file)
5CH      92      Lock or Unlock Region of File
68H     104      Commit File (forces buffer to be written out)
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