From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 16 Sep 1995 22:50:00 -0400 From: jmk@plan9.att.com jmk@plan9.att.com Subject: Question about VGA modes Topicbox-Message-UUID: 24a41786-eac8-11e9-9e20-41e7f4b1d025 Message-ID: <19950917025000.HJcE3ATUlVPjm46uNJQ5cMI8cX9Gh27Vf7qnfHtT9Wo@z> you're right, you need to know how the banks are switched. the notes i posted were extracted from an old example i had where i knew the vga chip but not how to programme the clock. ------ original message follows ------ >>From cse.psu.edu!9fans-outgoing-owner Sat Sep 16 15:20:26 EDT 1995 Received: by colossus.cse.psu.edu id <78378>; Sat, 16 Sep 1995 15:09:10 -0400 Received: from goggins.bath.ac.uk ([138.38.32.13]) by colossus.cse.psu.edu with SMTP id <78375>; Sat, 16 Sep 1995 15:08:01 -0400 Received: from bath.ac.uk (actually host solomon.bath.ac.uk) by goggins.bath.ac.uk with SMTP (PP); Sat, 16 Sep 1995 20:00:49 +0100 Original-Received: from GATEWAY by bath.ac.uk with netnews for 9fans@bath.ac.uk (9fans@cse.psu.edu) PP-warning: Illegal Received field on preceding line To: 9fans@cse.psu.edu Date: Sat, 16 Sep 1995 00:04:35 -0400 From: martin Message-ID: <43dicj$s4o@earth.superlink.net> Organization: SuperNet, Inc., NJ, USA (908-828-8988) Subject: Question about VGA modes Source-Info: From (or Sender) name not authenticated. Sender: owner-9fans@cse.psu.edu Precedence: bulk Reply-To: 9fans@cse.psu.edu I have got the impression recently from a couple of postings that the 640x480x8 mode is supported on alll VGA hardware - in other words, that aux/vga doesn't need to know anything about the card (other than the fact that it's VGA) to do 640x480x8. I wonder if anyone can cofirm or deny this? On reason that leads me to doubt this is that said mode requires >64k of memory to run, implying that bank switching is necessary - something that is card dependent. Any takers? Martin Harriss martin@mars.superlink.net