Choose the smallest range applicable to the value you're trying to change. Select the memory addresses' size for the value you are searching for. The initial cheat window has the following options. Please note that, in post The cheat system described here is referred to as 'raw' or 'internal' cheats. This article will provide a rundown of the cheat searching menu and functions, followed by a pair of examples. The 'raw' or 'internal' cheats include cheat-finding facilities where you may manually search for and alter the memory positions which work to your advantage.
This manual explains the 'raw' or 'internal' cheat system in desmume.