Basic shell for RP6502

[jthwho]

I've started work on a basic shell that can call a list of func(int argc, char *argv[]) style functions. It started as a quality of life thing for me as I'm working on some custom VGA stuff, but I figured others might find it useful. Probably a good place for some basic file management stuff once we've got dirent functions.

You can find it here: https://github.com/jthwho/rp6502-shell

Jason

[WojciechGw]

thank You Jason :)
please take a look at
https://github.com/WojciechGw/cc65-rp6502os