Call functions defined in assembly

[wontruefree]

There are ways to write crystal without GC. I am not sure if you would want to. But you could write an OS and use GC but then write the lower level stuff without GC.

Question about Crystal, Compiled Code, and Performance

The overhead in this example comes mostly from Crystal’s stdlib runtime, not LLVM. The following Crystal code resembles the C implementation more closely: require "lib_c" require "c/stdio" LibC.printf pointerof("HELLO!\n".@c) Compiled with --prelude=empty --no-debug this emits 33 lines LLVM IR and works pretty similar as the C example with only minimal overhead. Obviously, you wouldn’t want to write a larger program like this. And for writing any serious application, you will need some kin…