Comment by 🚀 stack
Excellent. If you ever want to put together a 40Mhz 6809 on that $30 board, I'll be happy to assist.
2025-04-18 · 1 year ago
Original Post
Forth Advanced Run-Time — I've been coding in assembly on a Forth-friendly 6809 system I slapped together on the $30 Tang Nano 20K FPGA board. I always wanted to try a 6809, mainly because it has a User Stack that works perfectly as a Forth Datastack -- complete with push and pull instructions. Unlike all other processors out there. Well, the 68K allowed any address register to be used as a datastack, I suppose. But the U register is actually designed for Forth. Anyway, I wrote a bootloader,...