Int 10 Fn 5F03  - Chips & Technologies Extended BIOS - Set Power-on Emula  [V]

   AX = 5F03h
   BL = 01h
   CL = emulation mode
   CH = mode
       bit 7 persistence (0 reset on next boot, 1 until changed)

Return: AL = 5Fh if function supported
       AH = status
       00h unsuccessful
       01h successful

See Also: AX=5F02h,AX=5F03h/BL=00h,AX=5F90h