See: https://github.com/trcwm/HD6309-Computer
Although the computer has an 6309 which has more instructions than the 6809, the USIM library does support these, so we'll have to stick to 6809 compatible binaries for now.
This will only compile/run on Linux.
hd6309sim --hex=boot.hex
to run the HD6309 computer with its boot ROM.