It's only two words! You need two 64 bit pointers on a 64-bit machine. A fuckton of people have come up with the idea that "hey, since a 4gb address space is r

It's only two words! You need two 64 bit pointers on a 64-bit machine. A fuckton of people have come up with the idea that "hey, since a 4gb address space is really plenty, why don't we try using an n/2 address space and have a whole cons fit in one word?" I'm sure the same thing has come up plenty of times before. It turns out to be not so hot to avoid directly using the OS' VM and the hardware's MMU.