You can see a simulation of an 6502 CPU running here. http://www.visual6502.org/JSSim/expert.html http://www.visual6502.org/JSSim/expert.html Also this person

You can see a simulation of an 6502 CPU running here. http://www.visual6502.org/JSSim/expert.html http://www.visual6502.org/JSSim/expert.html Also this person has some simple tutorial on how a toy CPUs work. He even made a simulator so you can make your own using gate logic. https://www.youtube.com/watch?v=QZwneRb-zqA&list=PLFt_AvWsXl0dPhqVsKt1Ni_46ARyiCGSq https://www.youtube.com/watch?v=QZwneRb-zqA&list=PLFt_AvWsXl...