Introduction

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Introduction

This document describes the internal architecture of the Free Pascal Compiler version 1.9.x+ release. This document is meant to be used as a guide for those who wish to understand how the compiler was created.

The architecture, and the different passes of the compiler are shown in the following figure: (last updated for fpc version 1.0.x)

http://www.pjh2.de/fpc/CompilerInternalsFigure01.png

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