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cc65 toolchain example

Intro

This is a minimal example of how a custom CMake toolchain file can be used to compile projects that use the cc65 compiler/assembler.

In this example there are two assembly source files (source1.s and source2.s), a header file (header1.inc) that is included by one of the source files, and a linker configuration file (linker.cfg). The files can be found in the src directory. A change in any of these files will trigger recompilation.

More source files, custom build rules, etc., can be specified in CMakeLists.txt. The build outputs a binary file cc65_toolchain_example.bin in the build directory.

Dependencies

You can probably find these from your favorite package manager, or you can install them manually.

  • cc65
  • CMake
  • Ninja

The dependency handling doesn't work with the Makefile generator for some reason, so I recommend using Ninja.

If you're on Windows, the build.sh script won't work (it might work in MinGW and definitely should work on WSL, though). In that case you can run the commands manually, or make a batch script for cmd.

Usage

Simply run ./build.sh to build the project. Remove the build directory if you want a clean build.