These pages contain a slowly growing description of cc64's inner structure.
The Goals & Ideas page focuses on the design goals and basic ideas of cc64.
The Sources Overview page gives an overview of the compiler's architecture through a short overview of its most important source files.
The Transient Headers & Code page describes the mechanism and use of transient word headers and transient code, i.e. word headers and code that are present while cc64 itself is compiled but aren't part of the final cc64 binary.