This old news https://retrocomputingforum.com/t/doom-runs-on-acorns-bbc-master-on-an-arm-second-processor/763 https://retrocomputingforum.com/t/doom-runs-on-aco

This old news https://retrocomputingforum.com/t/doom-runs-on-acorns-bbc-master-on-an-arm-second-processor/763 https://retrocomputingforum.com/t/doom-runs-on-acorns-bbc-ma... and a extra PI running doom with display on the bbc micro