Action Replay codetypes: http://www.bsfree.org/hack/hacking_gcn.html#ar_code_types
Gecko OS codetypes: http://geckocodes.org/index.php?arsenal=1
The majority of codes you see for Gecko are ASM. The other codetypes are rarely used.
Gecko is the cheat device created for Wii, as the Wii does not (or didn't?) support the AR device. As for how that matters in Dolphin, I'm not entirely sure. They both seem to support the majority of codes I've entered, and if they don't work in one, I try it in the other.
There aren't many (if any) actual Gecko codes that have been created for gamecube games, considering it's not made for it, but entering AR codes in the Gecko tab may work.
Edit: I saw your post in the main thread for FE:RD concerning button activators. You can't use button activators meant for Gecko via the AR option. They are specific to Gecko.
Gecko OS codetypes: http://geckocodes.org/index.php?arsenal=1
The majority of codes you see for Gecko are ASM. The other codetypes are rarely used.
Gecko is the cheat device created for Wii, as the Wii does not (or didn't?) support the AR device. As for how that matters in Dolphin, I'm not entirely sure. They both seem to support the majority of codes I've entered, and if they don't work in one, I try it in the other.
There aren't many (if any) actual Gecko codes that have been created for gamecube games, considering it's not made for it, but entering AR codes in the Gecko tab may work.
Edit: I saw your post in the main thread for FE:RD concerning button activators. You can't use button activators meant for Gecko via the AR option. They are specific to Gecko.