Target writers documentation is a document intended to contain the information needed to write support for a new target.

How-it-works -- information on how the compilation process works.

Building -- how to build PCC for your platform.

Supported-Platforms -- list of supported platforms.

Common-Problems -- solving some common problems.

Cross-Compiler -- examples of using pcc as a cross compiler.

Cross-Compile -- how to cross-compile pcc for a different host.

The internals pages document the design and implementation of ccom (pcc's compiler).