RISC-V Business Running Doom On Linux Without A Memory Management Unit

RISC-V Business Running Doom On Linux Without A Memory Management Unit

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Look Ma, No MMU!

You can add this to the list of things done with Linux because someone figured they could pull it off, as there isn’t much of a usage case for a MMU-less system in real life.  On the other hand being able to run programs, like DOOM for instance, without a hardware memory manager is rather impressive.  cnlohr built an emulator that does exactly that!

The emulated hardware is a RISC-V system running the Linux 5.18.0 kernel and the best part is that there are a full set of instructions on GitHub so you can try it out too!  If you are interested in just how minimalistic and tiny a working computer can be it is worth checking it out.  The graphics might not be awe inspiring but running Doom on a RISC-V rv32ima is very impressive!



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