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Re: Google SoC, Fancy Menus or USB keyboard

From: Pavel Roskin
Subject: Re: Google SoC, Fancy Menus or USB keyboard
Date: Wed, 02 Apr 2008 21:05:04 -0400

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.

Pavel Roskin

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