Int 21 Fn E9  P - Os/286, Os/386 - Change Segments                         [E]

   AH = E9h
   AL = function
       01h change code segment parameters
       02h change data segment parameters
       05h adjust segment limit
       06h change segment base address
   ???

Return: ???

See Also: AH=E7h"OS/286",AH=E8h"OS/286",AH=EAh"OS/286",AH=EDh"OS/286"

See Also: INT 31/AX=0007h,INT 31/AX=0008h