Guide to the TD4 4-bit DIY CPU

Software Development, Embedded Systems, Computer Architecture(philipzucker.com)view on HackerNews

TD4DIY CPU4-bitembedded systemscomputer architectureassembly languageprogramming.

Author: andrewstuart

Date: 6/18/2026

Article Summary:

A guide to building and understanding a 4-bit DIY CPU kit called the TD4, including its components, instruction set, and programming.