mildy related but wasn't there an emulator (maybe not GB but NES or SNES?) which had a visual panel showing each CPU cycle step by step? afaik it was very slow but the 1000% accuracy was the goal not playability.

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andruc 6 hours ago | parent | next [-]

My guess is you're thinking of no$gmb, a very early Game Boy emulator:

https://gbatemp.net/threads/no-gmb-2-5-dos-full-version.6039...

I've got fond memories of using this to get a preview of Pokemon Gold before it was released in NA!

	▲	thrownawaysz 4 hours ago \| parent [-]
		Found it MetalNES, transistor level NES emulation https://github.com/iaddis/metalnes While searching I also found a new one, VisualNES https://kaiokendev.github.io/nes/about There is also one for GB https://github.com/aappleby/MetroBoy

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hugeBirb 6 hours ago | parent | prev [-]

I'm not sure if this is the one you are talking about but I remember seeing this a little while ago. https://mtmc.cs.montana.edu/

	▲	thrownawaysz 4 hours ago \| parent [-]
		Found it MetalNES, transistor level NES emulation https://github.com/iaddis/metalnes While searching I also found a new one, VisualNES https://kaiokendev.github.io/nes/about There is also one for GB https://github.com/aappleby/MetroBoy