Int 61 Fn 1C  - Atari Portfolio - Preset/get Peripheral Data               [b]

   AH = 1Ch
   AL = function
       00h preset data values
       BL = data value
       DX = I/O address
       01h get data values
   BH = table entry number (04h-09h)

Return: if function 01h
       BL = data value
       DX = I/O address
Desc:  preset peripheral I/O data in a table mapping I/O addresses to data
     values; function 00h additionally outputs the data value to the
     I/O port

See Also: AH=1Ah"Portfolio",AH=1Bh"Portfolio",AH=1Eh"Portfolio"