While it can still be used now it's much easier to just use ,extended, as it works for each data size. In the past, PCSX2 used to make use of byte, short, and word for this. (This is where something gets stored by the game, like money values for example) These codes generally almost always start with either 0, 1, or 2. If you want to turn a code completely off, simply comment it out with // in front of the patch=1.
Gametitle=Tales of The Abyss (U) Ġ: Activates once at the start of a game.