A pseudolanguage to abstract machine optimizing compiler;

$ cargo run --bin rame-run -- -cO - 20
FUNCTION fibo(i)
BEGIN
    IF i <= 1 THEN
        RETURN i;
    ELSE
        RETURN fibo(i - 2) + fibo(i - 1);
    FI
END

FUNCTION main()
BEGIN
    READ n;
    PRINT fibo(n);
END
^D

Output = [6765]

Further reading:

• compiler/README.md for the language reference;
• rame/README.md for the abstract machine model and optimizer;
• driver/README.md for installing and running this repository.