[mgsim-simple-distribution] Fixed readtrace.in print bug.
[mgsim-simple-distribution] Fixed readtrace.in print bug.

If the data file is too small, 0.0 time has elapsed to read it, which caused a division by zero. t has now been replaced with NaN in those cases.



git-svn-id: e577619e17298f7d5cf54fcad3909a2a1f1d0141@4236 e97e5017-a994-416e-809d-76780e9f78db

Bitblade-org/mgsim,Bitblade-org/mgsim,Bitblade-org/mgsim,Bitblade-org/mgsim