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
next 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
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