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From: cmcmanis%pepper@Sun.COM (Chuck McManis)
Newsgroups: comp.sys.amiga
Subject: Re: GenLock info
Message-ID: <21525@sun.uucp>
Date: Fri, 19-Jun-87 13:17:09 EDT
Article-I.D.: sun.21525
Posted: Fri Jun 19 13:17:09 1987
Date-Received: Mon, 22-Jun-87 04:07:39 EDT
References: <iga> <457@cup.portal.com>
Sender: news@sun.uucp
Reply-To: cmcmanis@sun.UUCP (Chuck McManis)
Distribution: world
Organization: Sun Microsystems, Mountain View
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In article <457@cup.portal.com> Steve_A_Hales@cup.portal.com writes:
>   Does anyone have any info on how genlock works?  Or even how I would
>make sure my program uses it.  I want to make sure that my program can
>sync with the thing, but I don't know how.  Any advice would be welcome.
>Thanks in advance, Steve Hales

Common misconception clear up time here, Kickstart 1.2 checks for the
GenLock when it comes up. If it is their is changes the direction on
some of the video signals (Hsync, Vsync, come to mind) and sets a
bit in one of the Base structures. (Probably GfxBase Dale?) Your
program does not have to do *anything* to work with it, although if
you want you can set your Color pallete in such a way that your 
program is still usable even if color 0 is 'external video'. One
of the things I would like the console device to do is all you to set
the 'background' color to something other than what is in zero. 


--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.