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To: "Andrey A. Chernov" <ache@freefall.freebsd.org>
cc: CVS-committers@freebsd.org, cvs-all@freebsd.org, cvs-sys@freebsd.org,
        yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: cvs commit: src/sys/i386/isa syscons.c 
In-reply-to: Your message of "Wed, 30 Apr 1997 11:18:51 JST."
             <199704300218.LAA23808@zodiac.mech.utsunomiya-u.ac.jp> 
References: <199704300119.SAA02530@freefall.freebsd.org>  <199704300218.LAA23808@zodiac.mech.utsunomiya-u.ac.jp> 
Date: Wed, 30 Apr 1997 11:32:59 +0900
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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>>  Modified:    sys/i386/isa  syscons.c
>>  Log:
>>  In comp_vgaregs skip cursor shape and 4 unused bytes (6 total)
>>  instead of 2 unused.
>
>Unused?
>
>I skipped the cursor position registers (CRTC registers 14 and 15). 
>You skipped the cursor shape registers (CRTC registers 10 and 11) and
>the start address registers (CRTC registers 12 and 13).
>
>I agree that the cursor shape registers and the start address
>registers may be set differently from the video mode parameter table
>when the register values are read in scinit(). So, I don't object
>skipping them when comparing register values in order to make some VGA
>cards work.
>
>But, these registers ARE used to set up the card, aren't they?
>
>Kazu

Ah, now I see it. You wrote "unused" in the sense that syscons
doesn't care about these registers, right?

Kazu