Writing a C Compiler (Build a Real Programming Language from Scratch)

A hands-on, example-filled guide to the theory and practice of writing a C compiler: a computer program that translates code written by programmers into code the computer can read.

Compilers are at the heart of everything programmers do—and they’re cool as heck—but they have an intimidating reputation. Writing a C Compiler makes this fascinating topic fun and accessible. This book is a step-by-step guide to writing your own compiler for a large subset of C. Your compiler will generate assembly code for the ubiquitous x64 processor architecture, so you’ll learn what it takes to compile a real-world programming language to run on a real-world processor.

You’ll build a working compiler for the simplest possible C programs in Chapter 1, then add a new feature in each subsequent chapter. You won’t need any prior knowledge of compiler construction or assembly code, and the implementation is presented in pseudocode, so you can write your compiler in whatever language you like. 

You’ll learn how to:

• Write a lexer and recursive descent parser to turn source code into an abstract syntax tree (AST)
  
• Implement arithmetic operations, control-flow statements, and other C language constructs in x64 assembly
  
• Use your system’s calling convention to call functions defined in external libraries
  
• Perform several common optimizations, including constant folding and dead store elimination
  
• Write a graph coloring register allocator to efficiently assign values to hardware registers
  

In Writing a C Compiler, you’ll tackle a fun, challenging project—and gain a deeper understanding of the code you write and the systems it runs on.

This book title, Writing a C Compiler (Build a Real Programming Language from Scratch), ISBN: 9781718500426, by Nora Sandler, published by No Starch Press (September 24, 2024) is available in paperback. Our minimum order quantity is 25 copies. All standard bulk book orders ship FREE in the continental USA and delivered in 4-10 business days.

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