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J-Core is open-source implementation of Super-H architecture used in Sega Saturn and which formed basis of ARM’s Thumb. This implementation runs Linux on a $50 FPGA board. ASIC cost on 180nm is pennies per CPU. Video here.

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    I remember watching this video around the time when it was released. With the recent explosion in commercial interest in RISC-V it seems like J-Core is getting left behind.

    I look forward to seeing J-Core SoCs and boards. I expect that unlike J-Core, many RISC-V cores will be packed with proprietary extensions and private toolchains.