I have a new post on Hackaday: MilliForth-6502, A Forth For The 6502 CPU.
Some material was deleted by the editors so I have included it below for the archive.
The main code is the assembly code in sector-6502.s.
These are the commands I ran to take it all for a spin:
mkdir /tmp/milliForth-6502 cd /tmp/milliForth-6502 git clone https://github.com/cc65/cc65 cd cc65 make sudo make install cd .. git clone https://github.com/ShonFrazier/lib6502 cd lib6502 make sudo make install cd .. git clone https://github.com/agsb/milliForth-6502 cd milliForth-6502 touch out source do1 sector-6502 wc -c sector-6502.out hd sector-6502.out