Sonic on the 64

[beamrider]

https://www.youtube.com/watch?v=jGp4a00OeRs

This look stunning!

[orion70]

Looks excellent, almost pixel perfect. It's for the REU expanded Commodore 64 only though. Not everyone's configuration AFAIK.

[beamrider]

Yes, there doesn't appear to be a cheap modern replacement for the REU as far as I can tell.

[orion70]

Is it correct that 512kb "GEO RAM" and the likes (clones) are NOT usable as REUs?

[beamrider]

I read in an interview with the Author that the DMA facilities of the REU assist in the scrolling implementation.

[beamrider]

Is it correct that 512kb "GEO RAM" and the likes (clones) are NOT usable as REUs?

I believe not...


"The problem with building an REU is that Commodore put a custom DMA
controller chip in there; it's not just a stack of RAM sitting on the
expansion port like, for example, the GeoRAM."

https://groups.google.com/g/comp.sys.cb ... GlGc?pli=1

I am wondering if something like KungFu flash could be made to emulate it...?

[beamrider]

Finally got around to trying this on the MiSTer.

It really is impressive and it's difficult to believe you are playing a C64 game.

[HarryP2]

Uhh...where can I get this game?

[beamrider]

well it's the first result for me when I google "sonic c64 download"

[HarryP2]

Sorry for the stupid question!

[beamrider]

No worries, the board seems a little dead lately anyways so good to have some activity

[HarryP2]

I liked it. Thanks!

[nbla000]

I believe not...

"The problem with building an REU is that Commodore put a custom DMA
controller chip in there; it's not just a stack of RAM sitting on the
expansion port like, for example, the GeoRAM."

https://groups.google.com/g/comp.sys.cb ... GlGc?pli=1

I am wondering if something like KungFu flash could be made to emulate it...?

Someone is trying to replace the original 1764 REU with additional features:
https://www.youtube.com/watch?v=Zfzsf5WbC2Q

An Italian user "retrofixer" is trying to release another low cost version derived from this version, some experiments on you tube.