Agree - way OT - but just to set your mind at rest on that point, it didn't manage the safety systems directly. All that stuff is embedded microcode and doesn't change / get messed with. However, it did interface with them, and allowed you to do funky stuff like automatically reverse valves if there was a problem, etc. It also allowed you to visually design new systems, and "test" them out virtually before building it in the real world. It was a really nice piece of software. But anyway, relax.Hmm, that's surprising. And worrying. No matter how well-engineered your code is, deploying it on an unstable stack is hardly confidence-inducing. I'd've thought reactor safety systems would run on a custom real-time OS which undergoes the same stringent reviews as the application itself.
(Eh, sorry, getting rather OT).