HCS12 development from Mac OS X and/or Linux (don't care about a specific IDE)

[schroedinbug]

I'm taking a course that uses the book Software and Hardware Engineering by Fredrick M. Cady.  Unfortunately it appears that all of the development tools on the included disc are Windows-only.  After searching around for a while I was still without a solution that would let me use Mac OS X or Linux to do my development.  I do not care about if an IDE is available for either operating system, but I would like to find the other development tools necessary to avoid Windows.

Has anyone has success using Mac OS X or Linux to develop for the HCS12?  I'm interested in solutions that avoid Windows as much as possible (completely being preferred).  The book in question uses both C and assembly, so I'd need to be able to do both.

[andy_sinclair]

Gcc is available for the hcs12 from here:
  http://www.gnu-m68hc11.org/m68hc11_download.php

You can use it in conjunction with your favourite IDE or editor on any platform.

Note that gcc will not compile code for the XGATE, however a cross platform assembler for XGATE is available here:
  http://sourceforge.net/projects/hsw12asm/