This is my first attempt at a simple compiler following the Ruby compiler series: https://web.archive.org/web/20080413133022/http://www.hokstad.com/writing-a-compiler-in-ruby-bottom-up-step-2.html

The article however uses x86 assembler, when this is an attempt at generating x64 assembler. I know nothing of x64 assembler, and the code generated is deduced from gcc -S as indicated by the article series. This means that more than likely the code is either suboptimal, or plain incorrect.

The command used to compile is:

ruby compiler.rb > hello.s
gcc -no-pie -o hello hello.s

Docker

docker can be used to compile everything:

cd docker
docker build -t my-compiler .
docker run -it -v $(pwd)/..:/develop my-compiler:latest /bin/bash

Some useful links:

• http://www.hep.wisc.edu/~pinghc/x86AssmTutorial.htm x86 GNU AS tutorial, but very useful to get started with x64.