[pyre]

As long as you have the ability to address memory directly, I would say that it's possible. I'm not 100% sure about how memory is allocated though. Outside of virtual memory, are the actual chunks of memory sequential, or would overflowing an offset get you a chunk of another process? (I imagine the answer might be implementation dependent)

[shanemhansen]

It's more important to have bounds checked access and to disallow pointer arithmetic. If you do that, pointers (addresses) are fine.