From: Colin D Bennett <colin@gibibit.com>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: Google SoC, Fancy Menus or USB keyboard
Date: Wed, 02 Apr 2008 18:54:29 -0700 [thread overview]
Message-ID: <47F438D5.4030401@gibibit.com> (raw)
In-Reply-To: <1207184704.3063.1.camel@rd>
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.
next prev parent reply other threads:[~2008-04-03 1:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-03 0:43 Google SoC, Fancy Menus or USB keyboard Colin D Bennett
2008-04-03 1:05 ` Pavel Roskin
2008-04-03 1:54 ` Colin D Bennett [this message]
2008-04-03 2:20 ` Pavel Roskin
2008-04-03 2:48 ` Colin D Bennett
2008-04-03 16:04 ` Vesa Jääskeläinen
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