Нарыл проект: https://github.com/nlsandler/write_a_c_compiler
И описание процесса разработки:
https://norasandler.com/2017/11/29/Write-a-Compiler.html
https://norasandler.com/2017/12/05/Write-a-Compiler-2.html
https://norasandler.com/2017/12/15/Write-a-Compiler-3.html
https://norasandler.com/2017/12/28/Write-a-Compiler-4.html
https://norasandler.com/2018/01/08/Write-a-Compiler-5.html
https://norasandler.com/2018/02/25/Write-a-Compiler-6.html
https://norasandler.com/2018/03/14/Write-a-Compiler-7.html
https://norasandler.com/2018/04/10/Write-a-Compiler-8.html
https://norasandler.com/2018/06/27/Write-a-Compiler-9.html
https://norasandler.com/2019/02/18/Write-a-Compiler-10.html
Там еще полезные ссылки есть.

Первый пост в ноябре 2017
Последний — в феврале 2019

So far, I’ve been implementing a compiler and writing posts as I go. This system worked really well for a while, but now it’s starting to work less well; I realized that some decisions I made in earlier stages made this stage harder to complete, so I had to go back and change them. I think I’m likely to run into more problems like that in later posts. So I’m going to take a break, finish building the compiler (whatever I decide “finished” means), and then come back and write the rest of this series. I probably won’t post another update for six months. So basically…I’m going to keep posting at about the same rate I have been.

When I come back, I’ll have a plan for what to cover in the rest of the series. See you then!