Ok, that's neat... I don't want to break the 65C02 either... but now I know how to fix it.

So I received the PCB and it's mixed:

In the reloaded v1 motherboard this CPU replacement does not work: http://move.rupy.se/file/20221228_212659.jpg

But in an old breadbin it "works", sort of; many things don't, so far 50/50:

The "bomb jack" I used fails after the intro.

The "rescuing orc" I ...

Hm, would this work with the WDC 6502?

https://www.mouser.se/ProductDetail/Wes ... KH5w%3D%3D

I was waiting for this chip, it means as long as you heatsink (and/or undervolt) the VIC2 and SID properly you should be able to run your C64 hardware a long time into the future. I'm not a fan of emulation/FPGA, but this is different.

For example I recommend the SL100 version of the PLA.

Also ...

No problem, I don't even know if it works, just ordered one... hopium!

I'm trying to understand why RAM has not kept up with Moore's law.

The 6510 has slower clock speed because the VIC was using the other 1 MHz of the RAM?

But today DRAM has ~1GHz but row updates take like 300+ cycles, so how can one compare the figures of the C64 to a modern machine in terms of ...

Hi, an update on some things in this vicinity (just to make sure you haven't missed it):

https://www.facebook.com/groups/CommanderX16/
https://www.reddit.com/r/retrobattlestations/comments/b2pqlb/homebrew_8bit_ready_for_battle/
https://internalregister.github.io/2019/03/14/Homebrew-Console.html ...

Thanks so much!

Edit: so I'm looking at static RAM, is the cypress 512K the largest one you can get?

Also a friend uses this I2C circuit as keyboard interface: http://www.ti.com/lit/ds/symlink/tca8418.pdf

But I wonder if there is a more complex one that could do even more peripherals.

Found this ...

This one?

https://www.parallax.com/product/p8x32a-d40

Thanks for the youtube link, I have no clue what I'm looking at though.

The whole point is to build a computer with newly produced components (WDC) and modern IO (I2C, SPI and ETH) _but_ with old 8-bit graphics and sound; to avoid complexity, licensing issues and costs.

The main goal is to go back ...

You are right that they require some CPU so something would be needed between the 65C02/65816 and the screen if you want all cycles for your program. But these CPUs don't even have a SPI pipe so you'll need something anyway, specially if you want the VIC to output to it. I'm a complete noob and it ...

Did you guys see these:

https://www.c256foenix.com
http://mega65.org

Also since the 65816 has successfully replaced the 6510 I'm thinking a board that can fit the VIC and SID with a 65816 and then some sort of SPI screen interface for the VIC.

Next step would be to add some proper GPU that can ...

Can I ask, What is the main issue here? Do you have a C-64 that you want to get working again? or Maybe modify one that does work already?
I want to learn in a way that is practically useful, which means in a way where I could repair a C64 without requiring old components while still not emulating ...

[s]Could you use a 65c02 in a C64 with some tricks?[/s]

Edit: nm, I forgot I allready asked the same question: http://forum.6502.org/viewtopic.php?f=4&t=2085&start=15#p61776

[s]And does any1 know where the rights for VIC-II and SID are?[/s]

What would be more interesting; how could you interface ...