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View Full Version : Making a C128 act like a Sega Master System



NathanAllan
July 1st, 2009, 09:59 PM
It's a pretty far-fetched idea, but I really think it can be done! It might not be perfect but most of the hardware is already there. I have a link at the C128 forum here:

http://landover.no-ip.com/forums/index.php?topic=2783.msg13405#msg13405

I have a broken SMS here, so I can use it for parts. It'd be really neat if I can make some kind of crt adapter for it. I still have to fix the 128's keyboard.

Thoughts?

kiyotewolf
July 11th, 2009, 03:04 AM
Dear author of this here posty thing in this thread and stuff..

Your idea is the most original and innovative one I've seen this DECADE...

Omg..

I like it!!!!!!!!

A thin layer of emulation, and you could have the code ported over to C=64 assembly without much work really. I mean you'd have to sit and re-code most of the games by hand-ish-sorta, but you could probably automate that somehow with a custom compiler to re-write the code itself.

I'd love to give you a hand somehow. I'm a C=64 code/spriter, and I never got to play with a 128 enough, but I figure I could give you a hand with something at least.



Kiyote!

NathanAllan
July 11th, 2009, 10:07 PM
Thanks! I'm just curious as to why nobody I have talked to has thought of it already. I mean, have Z80 will travel is how I see it.

Right now it's still all in my head, so I haven't done much-- too much going on in real life. But the basic I dea I have lately come up with is some kidn of compatability board that extends from the cart slot. The C128 is designed to refer to the cart slot first anyway.

Cart gets detected, compat board has a rom on it that manages the memory requirements and data throughput. Tells the 128 to use the Z80 instead and load the game as the OS; I'm thinking instructions on how to interperet the data on the cart. Sound will be an issue but I'm also thinking of some kind of mixing circuit.

Like I said, I haven't devoted much time to this yet, but will as soon as things calm down and get stable again.

Thanks for the enthusiasm! I would love to see something like this happen and become a real physical **thing.**