how to play ps1 and gba advance on ppsspp

[globe94]

oh , then what you mean are called eboots.
its easy to download,you can google it.
as of the file destination,you can put it on PSP/GAME folder.
but i tell you,its difficult to run 100% smooth gaming on some eboots,my example is mario 3.nes, whatever the setting i do its still not smooth. eboots are like running emu using another emu . so i suggest that u just use the most compatible emu for a certain type of game.