MPX was pretty limited, but yes-- it moved in that direction. https://www.cl.cam.ac.uk/research/security/ctsrd/cheri/ https://www.cl.cam.ac.uk/research/securit

MPX was pretty limited, but yes-- it moved in that direction. https://www.cl.cam.ac.uk/research/security/ctsrd/cheri/ https://www.cl.cam.ac.uk/research/security/ctsrd/cheri/ is more what I was thinking