The difference between hardware and software is getting fuzzy (Transmeta, NVIDIA Denver, ...), but there&#x27;s at least one (admittedly terrible) FPGA implementation of a subset of MMIX large enough to execute small graphical demos: <a href="https:&#x2F;&#x2F;github.com&#x2F;tommythorn&#x2F;fpgammix" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;tommythorn&#x2F;fpgammix</a>