[fit2rule]

The sources to Lua are pretty darn great:

http://www.lua.org/source/5.2/

[Tanner]

Here's is Mike Pall's ( the originator of LuaJIT ) guide to reading the Lua source code: http://www.reddit.com/comments/63hth/ask_reddit_which_oss_co...

[fit2rule]

Wow, great find! That's from 6 years ago - truly a gem in the reddit layers .. thanks for that!

[jballanc]

Agreed, and after you've worked through the source to the canonical implementation of Lua, you can level-up by looking into the source of LuaJIT: http://luajit.org/download.html

[aktau]

Both are immensely awesome codebases, but the level-up is perhaps a bit too steep. Going from delightful ANSI C (vanilla Lua) to a lot of assembly + C (LuaJIT's interpreter) and runtime assembly generation (the JIT) is no slight task.