  The extended-MHD NIMROD code [C.R. Sovinec and J.R. King, J. Comput. Phys.
229, 5803 (2010)] is verified against the ideal-MHD ELITE code [H.R. Wilson et
al. Phys. Plasmas 9, 1277 (2002)] on a diverted tokamak discharge. When the
NIMROD model complexity is increased incrementally, resistive and first-order
finite-Larmour radius effects are destabilizing and stabilizing, respectively.
The full result is compared to local analytic calculations which are found to
overpredict both the resistive destabilization and drift stabilization in
comparison to the NIMROD computations.
