Some of my source code for the CoCo you can download.

My Custom CoCo Keyboard Polling Routine (Initial Release)

Some people seemed interested in checking out the custom keyboard polling routines I wrote for the CoCo from scratch. It does not depend on BASIC in any way. It does depend on a little bit of code being put inside an interrupt. Feel free to email me about it at or find me on Discord @lorddragon. It’s a work in progress and not complete by any means, but maybe it will help someone 🙂

Download: lorddragon_keyboard.asm