Turning the BBC Bridge Companion into a Tetris Console with Z80 Assembly
The BBC Tetris Companion

I decided to repurpose the obscure BBC Bridge Companion, a 1985 card game console, to run a custom Tetris-like game called Bridgetris. By reverse-engineering the system's BIOS and writing code in Z80 assembly, I overcame significant technical hurdles to create a playable title on this rare hardware. This project explores the unique challenges of low-level programming on vintage systems while breathing new life into forgotten technology.
For some reason, I had it stuck in my head for decades that the piece rotation code is actually very complex and involves a lot of fiddling.
- qingcharles
Crazy that this single use console was more expensive than a fully-loaded PS5 at launch, factoring in inflation.
The hardware is great, could make some really nice 8-bit games for it.
- mzs
nice series from same author:
https://www.leadedsolder.com/2020/02/16/colecovision-diy-par...
- mkirsten
What a great project! Thanks for sharing