Hi Robert, XO user, others, > > sort of graphical layer since there is no (S)VGA standard > > implemented....in fact, the graphical controller is embedded in the > > Geode chip and i'm not sure if it implements some standard at all
> Why not read the Geode LX data book at > www.amd.com/us-en/ConnectivitySolutions/ProductInformation/0,,50_2330_9863_13022%5E13073,00.html Interesting. Actually the Geode LX and GX both do implement an almost complete VGA unit as a separate function block. You can use either that VGA block or the "normal Geode" graphics stuff at any time, and even activate traps to have hardware in Geode mode and still detect attempts of your software to use the VGA. Some more exotic VGA graphics modes are not implemented, and most text modes take more graphics computing power than some lower resolution graphics modes at same screen refresh rate / frames per second rate, but I would say that Geode is really VGA compatible enough for DOS. But you still need a VGA BIOS. You can probably use some open source VGA BIOS such as the one used in the BOCHS virtual PC, with some smaller changes. Another interesting question would be what sort of disk and keyboard controllers are used on the OLPC, to estimate how hard it would be to write a BIOS which supports them. Anyway: If you do already have access to an actual OLPC laptop, you should first try using Dosemu on it, and let us know how well or not well it runs :-). Of course FreeDOS is a nice DOS to install in Dosemu, and I assume that a default install of Dosemu includes some minimal classic version of FreeDOS anyway. Eric ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
