[tinco]

Could you explain a bit how your project is different from the one in the article? Why did they implement the SM83 in HDL when you already have such an implementation?

Also, I don't see any specific FPGA's mentioned, what sort of constraints do these projects have? Does it run on a 3$ one, or do you need something bigger /fancier?

Edit: oh sorry didn't realize MIST is the device, it's an Altera Cyclone EP3C25

[mid-kid]

The one in the article is based directly on the die scans, while the MiSTer one is a completely custom implementation.

[jonny_eh]

How is the custom implementation confirmed to be "cycle accurate"?