Hello Luka,
Unfortunately, the CodeWarrior for the S12Z devices does not support full chip simulation.
I have tried to search some tools and the second most used IDE for S12Z is probably Cosmic:
http://www.cosmic-software.com/s12z_des.php
There is a ZAP debugger. The ZAP is available in 2 execution versions for the S12Z.
1. ZAP SIM Debugger with included processor Simulator
2. ZAP BDM debugger/flash programmer uses the S12Z on-chip background debug mode
I suppose that could be a possible option, but I don’t have any experience with such tools.
Best Regards,
Diana