9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: rsc@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] non-BIOS boot
Date: Mon, 27 May 2002 13:47:07 -0400	[thread overview]
Message-ID: <6099f03d6b7738ec365b3975b175e558@plan9.bell-labs.com> (raw)

> Anyone out there have any pointers towards documentation
> on accessing devices via physical memory? Like, apparently
> video memory to write text is mapped at 0xb8000.. do other
> devices become mapped like this? Is this documented
> information? If so, where? I've read through most of the
> intel CPU documentation, but, I havent seen anything related
> to this topic. I'd prefer not to use the BIOS in my MBR

google for ralf brown's interrupt list.
there's a file called memory.lst that you
might find useful.



             reply	other threads:[~2002-05-27 17:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-27 17:47 rsc [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-05-31 17:57 David Gordon Hogan
2002-05-30 18:17 David Gordon Hogan
2002-05-31  8:56 ` Don
2002-05-31  8:57 ` Charles Perkins
2002-05-31 16:10   ` Ronald G Minnich
2002-06-05  9:54   ` Don
2002-06-05 15:23     ` Ronald G Minnich
2002-06-05  9:54   ` Douglas A. Gwyn
2002-05-27  8:57 Don
2002-05-27 18:45 ` Ronald G Minnich
2002-05-29  8:47   ` Don
2002-05-29 13:50     ` Ronald G Minnich
2002-05-30  8:40       ` Don
2002-05-30 15:15         ` Ronald G Minnich

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=6099f03d6b7738ec365b3975b175e558@plan9.bell-labs.com \
    --to=rsc@plan9.bell-labs.com \
    --cc=9fans@cse.psu.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).