Int 14 Fn 06  - Multidos Plus Iodrv - Write Character To Port              [S]

   AH = 06h
   AL = character

Return: AL = status
       00h successful

Notes: the port number is stored at offset BEh in the Task Control Block
   if output queue is full, the calling task is blocked until the
     character can be stored

See Also: AH=01h,AH=04h"MultiDOS",AH=05h"MultiDOS",AH=21h"MultiDOS"

See Also: INT 15/AH=13h"MultiDOS"