T2 is a SPARCle/Fugu simulator that is implemented by dynamically cross-compiling SPARCle code to SPARC code. It simulates both user and system mode code and was used for doing program development before the arrival of SPARCle hardware.

The name T2 is short for ``Talisman-2''. Note that, despite the similarity in names, Talisman and T2 share little in implementation or core features: the former uses a threaded code implementation and provides timing simulation of an m88k, while the latter uses dynamic cross-compilation and provides fast simulation of a SPARCle.

From instruction-set simulation and tracing