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flohofwoe · 2 years ago
Having written a C64 emulator before (https://floooh.github.io/tiny8bit/c64-ui.html) I find it incredibly fascinating that some of those hardware errors look very similar to visual artefacts I got in the early stages of the emulator when trying to get the VIC-II timing right :)
unwind · 2 years ago
That is a fantastic emulator, for some reason nobody has commented and I just felt someone had to say it. :) I love all the focus on really nice-looking built-in tooling, memory heatmap and execution history are really cool to have! Great job!

Is there a way to load software into it? The "Load Snapshot" menu option is blank ...

flohofwoe · 2 years ago
Thanks! You can drag'n'drop .prg files into the emulator. No floppy support yet unfortunately!

I've put up some stuff here (mostly recent demo scene demos, it's mixed with other systems though): https://floooh.github.io/tiny8bit/

The Snapshot menu is just for storing and restoring emulator snapshots (e.g. the current state of the emulator, mostly useful for debugging)

300bps · 2 years ago
One of the most rewarding things I have done in the past few years is learned component-level repair on Commodore 64s.

Take a dead 64 showing nothing but a black screen, try the dead test cartridge, follow its lead or start desoldering, socketing and replacing chips.

And suddenly you have a working forty year old Commodore 64.

snvzz · 2 years ago
Definitely.

I fixed our two C64s that had been stored broken for 30+ years. Black screen to full working condition.

Last time I had seen them working I was about 5 years old. Very satisfying and nostalgic.

wkjagt · 2 years ago
Do you remember what the failures were? What did you end up replacing?
ge96 · 2 years ago
This could be a drinking game, pull a random image, guess what the error is...
rzzzt · 2 years ago
It's the PLA, what did I win?
snvzz · 2 years ago
True story: PLA, VIC-II survived, 6510 and SID died.

The real takeaway: Do not ever use CBM's C64 PSU. Get a modern one; they're all safe.

300bps · 2 years ago
Easily 90%+ of the faults on Commodore 64s, especially the early models.

My Christmas 1982 model died with a faulty PLA well within the warranty period.

supportengineer · 2 years ago
Where were all these resources 30 years ago?
rasz · 2 years ago
From what I remember from Adrian's Digital Basement or maybe Jan Beta YT channel similar guides used to be available in print form back in the day.