https://computationstructures.org/lectures/info/info.html
Also, an archived version of that course is still running on edx ...
https://www.edx.org/course/computation-structures-part-1-dig...
.. where there is a forum available, so people can still ask questions about how to build a 32-bit CPU from scratch using MOSFETs :)
It's also on OCW,
https://ocw.mit.edu/courses/electrical-engineering-and-compu...