What exactly is the ask here? Do you want input for a programming model? Practical advise for building a compiler? Do you want to target real hardware or a software simulator?
> I'd settle for a good way to express said tree in a plain text file
What you are referring to is commonly called an IR (intermediate representation). Compilers typically take the AST generated by the parser and translate (“lower”) it into increasingly hardware-near and optimized IRs before performing instruction selection.
I briefly browsed through the links you provided. IIUC, BitGrid is essentially one of the Turing-complete 2-D cellular automata. This Reddit thread might be interesting to you [0].
> I'd settle for a good way to express said tree in a plain text file
What you are referring to is commonly called an IR (intermediate representation). Compilers typically take the AST generated by the parser and translate (“lower”) it into increasingly hardware-near and optimized IRs before performing instruction selection.
I briefly browsed through the links you provided. IIUC, BitGrid is essentially one of the Turing-complete 2-D cellular automata. This Reddit thread might be interesting to you [0].
[0]: https://www.reddit.com/r/computerscience/s/IE5WRIrKsR