Re: [stella] supercharger good; busted code bad

Subject: Re: [stella] supercharger good; busted code bad
From: KirkIsrael@xxxxxxxxxxxxx
Date: 13 Jul 2002 18:52:58 -0000
> The only thing you need to make sure is that you don't access
> addresses $FFF8 and $FFF9, as these are special registers for
> the Supercharger. If you accidentally access $FFF8 in any form,
> you will change it's RAM/bankswitching setup, which might crash
> your game.

Ah, good to know.

I guess though there's no easy way to see where in ROM
code is living, except maybe using some kind of hex editor?
> I downloaded the binary from your website (It's the version from
> july 6th, right?), and it seems to work normally on my Cuttle
> Cart. Did you try any other binaries on your Supercharger to make
> sure that your setup is working properly?

Yeah, Combat, "How to Draw a Playfield", my initial "move a dot with
the joystick" all go fine.

Do you know what I mean by "normal"? It should be two happy faces,
each controlled by a diff. stick to move left and right and to 
"flap" with the fire button, with a floor and ceiling implied,
and bouncing on the floor.  Both move relative joust like.
With the supercharger on a real 2600, different movement behaviors
go on....getting caught half way up the screen, wild shmmering 
between high, medium, and low positions, other strange stuff.
And similarly weird on PCAE

It's odd. Unless some kind soul here has a suggestion, I might have to
strip my code to something that works (I'm not sure if my "draw a 
sprite" routine by itself works on all these systems, I neglected to 
save a copy at that state) and then build it back up, testing it all
the while....

"A casual stroll through a lunatic asylum 
   shows that faith does not prove anything."  --Nietzsche

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