A small graphical tool to decode and encode values for the DS OAM. The OAM is the memory area set up to handle sprites on the GBA and DS with multiple pieces of information encoded in 3 sections of 16 bits.
http://nocash.emubase.de/gbatek.htm#lcdobjoamattributes
http://nocash.emubase.de/gbatek.htm#lcdobjoamattributes