Reply 40 of 54, by Bernkastel7734
Well, I had seen a post on vcfed about using an EEPROM as a PROM :
https://forum.vcfed.org/index.php?threads/rep … h-eeprom.64656/
82s181 seems to be drop-in replacement of my MMI 6381 one, and it's just connecting pins, noting much, so the only problem is the code for the EEPROM.
Well, I got some M20s ROM dumps from emulator, they're not labeled, so maybe there is the one I need.