You can find the code they wrote with that compiler (EPL) and more information about Multics here. It's browsable but not in any modern archive though (https://

You can find the code they wrote with that compiler (EPL) and more information about Multics here. It's browsable but not in any modern archive though (https://web.mit.edu/multics-history/ https://web.mit.edu/multics-history/). And here are some links to a simulator that allows you to boot Multics up (https://multicians.org/simulator.html https://multicians.org/simulator.html). That web site also has a bunch of history about the system.