I notice an old post which mentions it is possible to replace the MMU with a 16V8 GAL:   MMU Chip Needed   I have a couple of LATTICE GAL16V8D15LP chips handy. Would these do the job when programmed with the TL866A?   Also, is it just a case of swapping out the MMU and directly plugging in the GAL?   I ask because, doing the same with the EMMU seems to be possible as well:   https://www.atarimax.com/jindroush.atari.org/achemmu.html   However in that case it appears rather more convol