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If besides the author's book (good work), you want to delve into how others approach the subject, check

- Retargetable C Compiler, A: Design and Implementation

- Compiler Design in C

Unfortunately those works create the compiler in C, whereas this work is done in python. In particular "Retargetable C Compiler" spends a huge amount of space dealing with managing data in C and not much on compiling.

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