Get all your news in one place.
100's of premium titles.
One app.
Start reading
Tom’s Hardware
Tom’s Hardware
Technology
Hassam Nasir

Enthusiast builds a fully functional CPU from old memory chips — hand-solders every wire, writes 1800 lines of assembler code, and makes it play The Matrix on a VFD display

A DIY CPU made from scratch.

At first glance, this mess of wires, onboard components, and manually soldered circuits may seem like some sort of cyberpunk sculpture, but it's actually a project that can only be described as absurdly brilliant. A passionate enthusiast has just built an entire processor—yes, not a development board, not a microcontroller, but a full-on, instruction-capable, memory-addressing CPU using nothing but old memory chips and logic components from the 8-bit era. It wasn’t designed to replace a modern CPU, but rather a "fun" DIY project, dubbed the EPROMINT.

The creator behind this astonishing project, Majsterkowanie i nie tylko (or MINT for short, "DIY and more" in English), spent three months designing, wiring, programming, and documenting every last detail of the processor’s architecture. The idea was born from a simple experiment using obsolete memory chips called EPROMs, originally configured to control small external systems, like a PWM dimmer or a message display. The simplicity of that setup lit a spark. If memory could be used to simulate basic logic, then perhaps the building blocks of a complete processor weren’t so far off.

Sign up to read this article
Read news from 100's of titles, curated specifically for you.
Already a member? Sign in here
Related Stories
Top stories on inkl right now
One subscription that gives you access to news from hundreds of sites
Already a member? Sign in here
Our Picks
Fourteen days free
Download the app
One app. One membership.
100+ trusted global sources.