Should I learn C by writing a C compiler in C? (Part 3)
Confronting Reality (x86-64 Code Generation)
The Pareto Principle states that 80% of results come from 20% of the effort. The mistake is then to look at your impressive results (from part 2) and conclude that you are 80% done. The last 20% take the remaining 80% of your effort. You're not even halfway to the halfway point.