INT 21 - DOS 1+ - SEQUENTIAL READ FROM FCB FILE

	AH = 14h
	DS:DX -> opened FCB (see #01345)
Return: AL = status
	    00h successful
	    01h end of file (no data)
	    02h segment wrap in DTA
	    03h end of file, partial record read
	Disk Tranfer Area filled with record read from file
Notes:	reads 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 a partial record was read, it is zero-padded to the full size
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=0Fh,AH=15h,AH=1Ah,AH=3Fh"DOS",INT 2F/AX=1108h