Re: [stella] 2600onachip: sorry about the question of Cosmic Ark stars

["John Saeger" <john@xxxxxxxxxxx>]

The schematic is pretty neat.  I'll be very interested to see if you can get
these games working without making your design too messy.  Please keep us
posted!

John


Carlos Lopez wrote:

> I tested Gi Joe and it looks messed up like in the first picture John. But
> don't worry, thanks to an old post of Eckhard Stolberg
> (http://www.biglist.com/lists/stella/archives/199705/msg00024.html) I  was
> able to perform some tests in order to have a better comprehension of the
> motion registers operation. The problem is that I didn't implement the
> motion registers exactly as in the original TIA, because it isn't a fully
> synchronous design. I made some assumptions but now I am fixing the
problem.
>
> If you want to take a look at my simplified schematics of the motion
> registers, you can download them from here:
>
http://www.mindspring.com/~2600onachip/simulation/motion_registers_schematic
> s.pdf
>
> I made a simulation in ModelSim that shows the mechanism that generates
> Cosmic Ark stars. The plot of this simulation is in:
>
http://www.mindspring.com/~2600onachip/simulation/motion_registers_simulatio
> n.pdf
>
> Probably you all know how this works, but if anyone needs an explanation
> please let me know.


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