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Date:      Fri, 2 Feb 1996 10:20:37 PST
From:      Bill Fenner <fenner@parc.xerox.com>
To:        Michael Smith <msmith@atrad.adelaide.edu.au>
Cc:        jgreco@brasil.moneng.mei.com (Joe Greco), phk@critter.tfs.com, jkh@time.cdrom.com, dgy@rtd.com, freebsd-hackers@freefall.freebsd.org
Subject:   Re: Watchdog timers (was: Re: Multi-Port Async Cards) 
Message-ID:  <96Feb2.102042pst.177479@crevenia.parc.xerox.com>
In-Reply-To: Your message of "Thu, 01 Feb 1996 17:07:57 PST." <199602020107.LAA25538@genesis.atrad.adelaide.edu.au> 

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In message <199602020107.LAA25538@genesis.atrad.adelaide.edu.au> Michael Smith 
wrote:
>Anyone out there ever written a video BIOS?

PC BIOS's probably still all have code to deal with BIOS-less mono video 
cards; why not just decode the video memory range and update internal state 
with the memory writes, then convert them into VT100 codes (or, rather, the 
card should have a downloadable termcap in NVRAM so that I can plug in my 
tvi925!...)

Don't forget that during the "pre-boot" phase you need to pretend to be a 
keyboard, too, not a serial port, or else you can't run setup.

  Bill




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