Int 10 Fn 007F  - Video - Paradise VGA, At&t Vdc600 - Query Mode Status    [V]

   AX = 007Fh
   BH = 02h

Return: AL = 7Fh if successful (AT&T VDC600)
   BH = status (Paradise/Dell)
       00h invalid function
       7Fh successful
   ---if successful---
   BL = 00h if operating in VGA mode, 01h if non-VGA mode
   CH = total video RAM size in 64k byte units
   CL = video RAM used by the current mode

See Also: AX=007Fh/BH=01h,AX=007Fh/BH=02h