jit-compiler

An example of Brainf*** JIT-compiler with only the standard library.

Prerequisite

• Rust(1.56.0-nightly or later, but it must work kind of older version)
• Linux or WSL, on X64

How to run

$ cargo run
Hello World!

How it works

allocate function calls the systemcall mmap directly with an executable flag. This allocates memories when a file descriptor isn't given. In macOS, how to call mmap is different, so rewrite the code appropriately. Also, if you use M1 mac, ISA is different from X86/64 and must rewrite the code. I don't know the details about Windows API, but to just try it, you should use WSL.

assemble function translates an AST into machine code. If you rewrite it, refer to mnemonics at the comments. It must be easier to do on other architecture than X86/64 ISA.

License

This code is licensed under Unlicense.