Memory:
- 80693348 through 8069335f: a bunch of shorts that contain the weight calibration values from 0x24 through 0x3b, as documented on https://wiibrew.org/wiki/Wii_Balance_Board#Calibration_Data.
- 80693360 through 8069336f: 16 bytes that are used to temporarilly store data extension register stuff.
- 80693370: the byte at 0x20
- 80693371: the byte at 0x21
- 80693372: the byte at 0x60
- 80693373: the byte at 0x61
- 80693374: the 4-byte checksum at 0x3c
SDA:
HasBBoardCalibration: 32-bit, 80695fb0. XREF: Read10From60Callback:8027439c(W), FUN_802745d8:80274788(W), FUN_802745d8:802747cc(R), FUN_80274a4c:80274a94(W), FUN_80274b40:80274c14(W), FUN_80274dfc:80274e24(W). Name is rough.BBoard_0x21_temp: 1 byte, 80695fb4. XREF: FUN_8027435c:80274360(R), FUN_80274ab0:80274ae8(W), FUN_80274ab0:80274aec(*)BBoard_0x20_temp: 1 byte, 80695fb5. XREF: FUN_80274340:80274344(R), FUN_80274ab0:80274b2c(*), FUN_80274ab0:80274b34(W)
Functions:
-
ReadExtensionByte(int wiimoteNum,byte *data,size_t address,WiimoteRWCallback *callback): 801537dc, eventually jumps to 8015a9e0. Reads a single byte, address must be between 0x20 and 0x23 or between 0xf1 and 0xf5. -
ReadExtensionData(int wiimote,byte *data,size_t address,size_t size,WiimoteRWCallback *callback): 80153814, also jumps to 8015a9e0. Reads a range of bytes. The whole read range must be between 0x24 and 0x3f, or between 0x50 and 0x6f. -
CreateRegWriteRequest(wiimotemessagecontainer *messageContainer,byte value,size_t address, WiimoteRWCallback *callback): 80153cbc. Writes a single byte to a register. -
CreateWriteRequest(wiimotemessagecontainer *messageContainer,byte *data,size_t size, size_t address,WiimoteRWCallback *callback): 80153e70. Writes multiple bytes. -
CreateReadRequest(wiimotemessagecontainer *messageContainer,byte *data,size_t size, size_t address,WiimoteRWCallback *callback): 80154028 -
ComputeBBoardChecksum: 802741ac. Computes the checksum based on an array of 28 values it takes from throughout memory. -
ComputeCRC32Table: 802740e0. Helper that computes the table once. -
whatever is at 802745d8: I have no idea but it does something important. Among other things, it starts a callback chain that reads a lot of values...
-
Read10From24Callback: 802744c8, used as callback toReadExtensionDatafrom above for reading 0x10 bytes from 0x24. Stores the 0 and 17kg values, and then... -
Read8From34Callback: 80274428, used as callback for reading 8 bytes from 0x34. Stores the 34kg values, and then... -
Read4From3CCallback: 802743a4, used as callback for reading 4 bytes from 0x3c. Stores the checksum(?) value, and then... -
Read10From60Callback: 80274378, used as callback for reading 0x10 bytes from 0x60. Stores only the first 2 bytes read, and sets HasBBoardCalibration to true. -
80274ab0: reads the bytes at 0x20 and 0x21. I'm not sure how this is called.
-
80274340: callback that copies the byte read from 0x20 to the location it actually uses for the checksum
-
8027435c: callback that copies the byte read from 0x21 to the location it actually uses for the checksum.