Almost all the ones that I know of compiled Lisp to an abstract instruction set, then had an interpreter for this written in assembler. The GC was also written

Almost all the ones that I know of compiled Lisp to an abstract instruction set, then had an interpreter for this written in assembler. The GC was also written in assembler. The SCHEME-79 chip [1] was sexps all the way down. If you were doing it today with the same hardware then writing a LLVM backend for the hardware instruction set might be a useful first step. You could then write the abstract instruction set interpreter and GC mostly in C. [1] https://dspace.mit.edu/handle/1721.1/6334 https://dspace.mit.edu/handle/1721.1/6334