What the team is doing during lockdown: Ken Shirriff reverse engineers AMD's 2901 bit slice chip (Patreon)

Ken Shirriff just wrote an article about his reverse engineeinrg of the AMD AM2901, a very popular bit-slice processor chip, which many machines used at the time:

http://www.righto.com/2020/04/inside-am2901-amds-1970s-bit-slice.html