Int 10 Fn 007F  - Video - Paradise Vga, At&t Vdc600 - Lock Current Mode    [V]

   AX = 007Fh
   BH = 03h

Return: AL = 7Fh if successful (AT&T VDC600)
   BH = status (Paradise/Dell)
       00h invalid function
       7Fh successful
Desc:  allows current mode (VGA or non-VGA) to survive re-boot

See Also: AX=007Eh,AX=007Fh/BH=04h,AX=007Fh/BH=06h,AH=FFh"Oak"