You're looking for information on using cheats with Demon's Souls on the RPCS3 emulator. Here's what I found:
is a tool that allows users to modify game memory and create cheats. For Demon's Souls on RPCS3, you can use Cheat Engine to create and apply cheats. demon souls rpcs3 cheat engine
Are you looking for specific cheats or help with creating your own cheat table? You're looking for information on using cheats with
is a popular emulator for PlayStation 3 games, and Demon's Souls is a notoriously challenging game that some players might want to use cheats for. demon souls rpcs3 cheat engine