One ROM 40 - 16-Bit ROM Replacement for Amiga and Beyond

One ROM goes 16-bit with the new 40 pin version - replacing Amiga Kickstart ROMs and other 16-bit mask programmed ROMs.

In this video I show the moment I get it working, then dive deep into how 16-bit ROM emulation actually works using my new PIO/DMA emulator and One ROM logic analyzer running in your browser. We go through detailed logic analyzer traces showing how a 40 pin 16-bit ROM operates and how One ROM replicates it.

One ROM 40 includes all the same features of the 24 and 28 pin versions - program them via USB, using a browser or the desktop application, switch between different images and more.

As usual, everything is open source, and the design files are available on Github.

If you want to buy 24 or 28 pin One ROMs check the link below.

🔗 Links

One ROM: https://onerom.org/
Buy: https://onerom.org/buy
Github: https://github.com/piersfinlayson/one-rom
40 pin layout video: https://youtu.be/nt8YBvBbD7E
PIO & DMA emulator: https://github.com/piersfinlayson/epio

⏰ Timestamps

00:00 Amiga first boot
00:59 Introduction
03:09 Logic analyzer trace
03:47 One ROM operation summary
05:55 I lied - it’s an emulator
08:49 40 pin ROM operation
14:00 Byte/Word Mode Switching
19:26 Final thoughts