gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Dec 11 2015 20:20:45 gem5 started Dec 11 2015 20:21:19 gem5 executing on zizzer, pid 52939 command line: build/MIPS/gem5.opt -d build/MIPS/tests/opt/quick/se/00.hello/mips/linux/simple-atomic -re /z/atgutier/gem5/gem5/tests/run.py build/MIPS/tests/opt/quick/se/00.hello/mips/linux/simple-atomic Global frequency set at 1000000000000 ticks per second info: Entering event queue @ 0. Starting simulation... info: Increasing stack size by one page. Hello World! Exiting @ tick 2812000 because target called exit()