Int 10 Fn 007F  - Video - Paradise VGA, At&t Vdc600 - Extended Functions   [V]

   AX = 007Fh
   BH = function
       03h  lock current mode
       allows current mode (VGA or non-VGA) to survive re-boot
       04h  enter MDA mode
       05h  enter CGA mode
       06h  enter monochrome VGA mode (also switches to video mode 7)
       07h  enter color VGA mode (also switches to video mode 3)
       0Ah,0Bh,0Ch,0Dh,0Eh,0Fh  WRITE PARADISE REGISTERS 0,1,2,3,4,5
       (port 03CEh indices 0Ah,0Bh,0Ch,0Dh,0Eh,0Fh)
       BL = value to set in the paradise register
       1Ah,1Bh,1Ch,1Dh,1Eh,1Fh READ PARADISE REGISTERS 0,1,2,3,4,5
       (port 03CEh indices 0Ah,0Bh,0Ch,0Dh,0Eh,0Fh)

       Return: BL = value of the paradise register
           BH = 7Fh if successful
       29h-2Fh ??? (Paradise VGA for Dell, 7/24/91)

Return: AL = 7Fh if successful (AT&T VDC600)
   BH = status (Paradise/Dell)
       00h invalid function
       7Fh successful
Desc:  set emulation mode or access proprietary extended data registers

See Also: AX=007Eh,AH=FF"Oak"