Re: Google SoC, Fancy Menus or USB keyboard

[Colin D Bennett]

Pavel Roskin wrote:
> On Wed, 2008-04-02 at 17:43 -0700, Colin D Bennett wrote:
>
>   
> > Does GRUB code run in real mode? I was thinking that double-buffering 
> > the graphics might be important for fancy graphics effects, and wondered 
> > whether is it difficult to allocate and deal with a megabyte or so block 
> > of memory? When I last programmed real mode programs in DOS, I know the 
> > limitations based on segment sizes, etc., but it's been a while.
> >     
>
> GRUB runs in protected mode, but it can switch to the real mode
> temporarily to call BIOS.  In any case, I believe that the menu
> implementation should be portable rather than x86 PC specific.
>   
Thanks for the info. Of course I also agree that the menu should be 
portable; my mention of real mode was, I guess, a question of whether we 
have a 32-bit linear address space, rather than specifics about the 
processor mode.