I haven't looked at this updated version (site is busy :/) but the version I looked at a while ago is quite good. The author's use of register to avoid aliasin

I haven't looked at this updated version (site is busy :/) but the version I looked at a while ago is quite good. The author's use of register to avoid aliasing is something I hadn't heard before and seems like a good idea in some cases. Beyond the learning C aspects, I really hope that some of the author's suggestions for language extensions are implemented.