I am looking to modify GCC 4.6 to be able to target the M68K-based TI graphing calculators. I am not looking to use any of the GCC4TI command-line frontends, IDEs, etc., but rather to create a standard cross compiler that can be used with standard build systems and development tools. I plan to look over the existing GCC4TI patches, but I was wondering if anyone had ideas for a less invasive way to add a GCC backend, making it easier to update to newer versions of GCC as they are released.

Finally, if I get this working, would GCC4TI be interested in me contributing the work back, or would it become yet another TI M68K compiler?

Thank you much,
Erik