9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: "Russ Cox" <rsc@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] any vga driver gurus about?
Date: Mon, 25 Sep 2000 16:51:00 -0400	[thread overview]
Message-ID: <20000925205113.49372199D4@mail> (raw)

IBM wasn't thinking much about the future when
they set up the VGA registers.  What goes into things
like vga->crt[0x13] and vga->crt[0x16] are the 
lower eight bits of those values.  In modes higher
than standard VGA can handle, various overflow
bits are scattered elsewhere.  Exactly where is card
dependent; that's what you're seeing.


	in my cl-gd52x manual

Surely there's a digit missing here?

Russ




             reply	other threads:[~2000-09-25 20:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-09-25 20:51 Russ Cox [this message]
2000-09-25 21:19 ` Matt
  -- strict thread matches above, loose matches on Subject: below --
2000-09-26  6:31 nigel
2000-09-26  6:15 nigel
2000-09-25 21:05 nigel
2000-09-25 21:10 ` Boyd Roberts
2000-09-25 21:25 ` Matt
2000-09-25 22:24 ` FODEMESI Gergely
2000-09-25 20:45 Matt

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=20000925205113.49372199D4@mail \
    --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).