Once that instruction has executed, the Region ID value is later stored in a spot in memory where the game will use it multiple times for various online functions. This instruction resides at memory address 0x8000AE70 for the American game and at address 0x8000AEAC for the Korean game. X is 1 in the American game, and is 5 in the Korean game. Nintendo did some fancy tricks to compensate for this.įor both the American and Korean MKW Discs, the Region ID is written with just one PowerPC instruction. For more about this, scroll down to 'About China Region ID'.Īs you can see there isn't as many discs as there are region IDs (not including region ID's above 6). There was also a 5th disc (never released) that is most likely labeled as NTSC-C/RMCC01 = Chinese MKW. NTSC-J/RMCJ01 = Japanese MKW (Disc that the Taiwan Wii also uses, no Taiwanese specific disc was ever made) There were 4 MKW Discs made and released to the public by Nintendo. WHITE = Region ID #7 (For more info on this, scroll down to 'About Region ID 7')Įverything for value 8 thru 255 (0x08 thru 0xFF in hex) has the color white. In order to see what Region ID a player has in an online race you look at the color of the line that is underneath their Mii name during a live race. Nintendo pre-configured Region ID values 0 thru 7. For example the instructions to output the Region ID in the NTSC-U game is different that the PAL game. If there isn't a match, this triggers a game function that notifies you on your screen that you must make a new data save file or return to the Wii Menu.Įach version of MKWii has its own unique set of said PowerPC instructions in the main.dol that generates the Region ID value.

These instructions load the Region ID byte from the data save file and compares it to what the result is from the main.dol's sequence of instructions. The Region ID is a hexadecimal number (byte) determined by a small amount of PowerPC instructions (within the main.dol), and that number is stored on the MKW data save file. These small amount of PowerPC instructions are done every time MKW is booted. When you create a data save for the first time, the resulting byte for the Region ID is written to the newly made data save file.įor every time you boot MKW with a data save already present, another different set of PowerPC instructions (within the StaticR.rel) is executed. Some Region ID's were give a certain color so players online could tell other people's region ID's. Before MKWii was released, Nintendo pre-made/configured the first 8 Region ID's. It will also determine what regional/continental Top 10 leader board that a user's TT's will be uploaded to. The Region ID determines what regional/continental VS/Battle Online rooms that a user can join. In Mario Kart Wii, the game uses what are called Region ID's to designate separate regions based on continental residence.

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