Redirecting stdout to build/MIPS/tests/opt/quick/se/00.hello/mips/linux/simple-timing-ruby/simout Redirecting stderr to build/MIPS/tests/opt/quick/se/00.hello/mips/linux/simple-timing-ruby/simerr gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Oct 13 2016 20:36:34 gem5 started Oct 13 2016 20:36:59 gem5 executing on e108600-lin, pid 36842 command line: /work/curdun01/gem5-external.hg/build/MIPS/gem5.opt -d build/MIPS/tests/opt/quick/se/00.hello/mips/linux/simple-timing-ruby -re /work/curdun01/gem5-external.hg/tests/testing/../run.py quick/se/00.hello/mips/linux/simple-timing-ruby Global frequency set at 1000000000 ticks per second info: Entering event queue @ 0. Starting simulation... info: Increasing stack size by one page. Hello World! Exiting @ tick 106125 because target called exit()