CPU Experiments with am29xx bitslice chips

The am2900 series of chips were very popular when they came out. Many minis were created with the am2901 or am2903 as ALU/Register chips. I have a few of those in my parts bin, so I decided to do something with them. The eventual idea is to create a "simple" CPU from them, but before I can do that there is so much to learn... This page will collect the travels I am doing to do that learning.

The things I make for this project can be found on Github.

Progress blog

• 2025/12/26 Fun with flags ;)
• 2025/11/30 Adding "ALU Operation" UI
• 2025/11/29 Fixing schematic and board, and adding more commands
• 2025/11/28 A Java GUI controller program for the ALU Board
• 2025/10/18 A 16-bit ALU board using am2901 bitslice alu + registers