[stella] Strange glitches in homebrewed games on the 2600 jr.

Subject: [stella] Strange glitches in homebrewed games on the 2600 jr.
From: Dennis Debro <ddebro@xxxxxxxxxxxxx>
Date: Fri, 28 Feb 2003 8:09:31 -0500
I don't know why the original message came over with no subject.

I forgot to mention the results on the jr.

Vault Assault
 - has a sprite appearing to far to the right
 - a vertical stretch on the Qb sprite and the board is higher
 - no screen, solid black

> I don't know if any of you have seen this thread on AA: http://www.atariage.com/forums/viewtopic.php?t=20525. Apparently there are problems with some homebrews and the 2600 jr.
> I first thought that the problem was that all three games set the timer during vertical sync. Crazy Valet also sets the timer during vertical sync and it doesn't have any reported problems (I asked someone to test it on their jr).
> The other noticable thing is Vault Assault and Skeleton set HMPx during vertical sync but 'Qb' doesn't.
> I don't have a 2600 jr so I can't try different things to find the problem :(
> Anyone have any ideas?
> Take care,
> Dennis

Take care,

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