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====== Int 21H, AH=15H ======

===== Version =====

1 and higher

===== Brief =====

SEQUENTIAL WRITE TO FCB FILE

===== Family API =====

[[en:docs:fapi:DosRead]]

===== Input =====

        AH = 15h
        DS:DX -> opened FCB (see #01345)
        Disk Tranfer Area contains record to be written

===== Return =====

 AL = status
            00h successful
            01h disk full
            02h segment wrap in DTA

===== Notes =====

  writes a record of the size specified in the FCB beginning at the
          current file position, then updates the current block and current
          record fields in the FCB
        if less than a full sector is written, the data is placed in a DOS
          buffer to be written out at a later time
        not supported by MS Windows 3.0 DOSX.EXE DOS extender
        
===== See also =====

AH=0Fh,AH=14h,AH=1Ah,AH=40h,INT 2F/AX=1109h

===== Note =====

Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]

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