@FPJ - hope you dont feel offended , but check these to see what's about !
Multi by @Hammy & @caius here : https://www.arcade-projects.com/threads/announcement-mms1-a-16-in-1-multi-for-jaleco-megasystem1-a-from-caius-hammy.18152/
And this is the Jaleco core for the #MiSTerFPGA by @atrac17 &...