List of Certain Functions with Arguments Plus Descriptions
This is a list of functions I have used in codes I have made or attempted to have made. Arguments, descriptions, and return values are provided. If you are wanting to view a list of many many more functions (not as detailed as this), view this thread HERE. There's no need to have essentially two symbol map type threads in the Resources sub-forum, hence why this thread is in Hacking General sub-forum.
ISFS Specific Return Values (r3)
For any function that has the term ISFS in it, they all have the same return value numbering. Here's a list of those values (shown in decimal form):
-1 = Permission Denied
-2 = File/Directory already exists
-4 = Invalid Register Argument
-6 = File/Directory not found
-8 = Resource busy
-12 = ECC error
-22 = Could not allocate Memory
-101 = Invalid Register Argument
-102 = Permission Denied
-105 = File/Directory already exists
-106 = File/Directory not found
-107 = Too many fds open
-108 = Memory is full
-109 = Too many fds open
-110 = Pathname is too long
-111 = fd already open
-114 = ECC error
-115 = Directory not empty
-116 = Max directory depth exceeded
-118 = Resource busy
-119 = Fatal error
Function: memcpy
Summary: Copies Data from a spot in Memory to another spot; useful for very large amounts of data
Address (region-free):
0x80005F34
Arguments:
r3 = Destination Start Address
r4 = Source Start Address
r5 = Amount of Bytes to Copy Over
Return Value:
r3 = Remains the same
~~~
Function: sprintf
Summary: Formats a String (C/C++ style) and stores string to desired memory location
Addresses:
NTSC-U 0x80010ECC
PAL = 0x80011A2C
NTSC-J = 0x80011950
NTSC-K = 0x80011A94
Arguments:
r3 = Address Pointer where Formatted String ASCii-Hex will be written to
r4 = Address Pointer where non-formatted ASCii-Hex String is located, must end in NULL
r5 thru r10 = Non-Float Values to be formatted
f1 thru f8 = Float Values to be formatted
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the sprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Value matching amount of bytes written to r3 (does not include the auto appended null byte at end) = Success
Any negative value = Error
~~~
Function: sscanf
Summary: Reads data from a Formatted C/C++ String.
Addresses:
NTSC-U too lazy to port lol
PAL = 0x80013040
NTSC-J = too lazy to port lol
NTSC-K = too lazy to port lol
Arguments:
r3 = Address Pointer where Formatted String ASCii-Hex is located at, must end in NULL
r4 = Address Pointer where non-formatted ASCii-Hex String is located, must end in NULL
r5 thru r10 varies depending on how many formatted values you need to read from the Formatted String (i.e. % items)
r5 thru r10 are pointer to where the dump the read data
Example:
r3 = Pointer to memory where the following string is at - "Bob is 25 years old"
For reading the "25" part of the string, set r4 pointer to point to this string "Bob is %d years old"
r5 will then need to be a pointer to dump the "25" to. %d is used because 25 is in decimal form. Let's say r5 is 0x80001500. After sscanf is called, at 0x80001500 will be the word value 0x00000019 (25 in decimal).
Haven't personally tested, but float values (i.e. %3.1f) should not use pointers. They should get placed directly into the FPRs, starting at f1.
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the sprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Items of Data that were successfully read = r3
If r3 = 0, no reading/conversions were done. If r3 is a negative value then r3 or r4 args were incorrect.
~~~
Function: swprintf
Summary: Formats a String (C/C++ style) using 16-bit ASCII (instead of 8 bit) and stores string to desired memory location
Addresses:
NTSC-U 0x80016CB4
PAL = 0x80017814
NTSC-J = 0x80017738
NTSC-K = 0x8001787C
Arguments:
r3 = Address Pointer where wide Formatted String will be written to
r4 = Number of characters to fill in the formatted string that will be written to r3's address, note its pretty hard to calculate this, thus you can just put this as a crazy high number because the function itself will autocap to the max of the formatted string. Thank you Seeky!
r5 = Address Pointer where non-formatted String is located, must end in NULL
r6 thru r10 = Integer Values to be formatted
f1 thru f8 = Float Values to be formatted
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the swprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Positive Value = Success; amount of halfwords written
-1 = Error; r4's value was too low. Formatted string will still be there but the function is letting you know its incomplete
~~~
Function: DirectPrint: SetupFB
Summary: Sets up a Frame Buffer to allow later use of DirectPrint: Printf & DirectPrint: StoreCache
Addresses:
NTSC-U 0x800223E0
PAL 0x80022480
NTSC-J 0x800223A0
NTSC-K 0x800224E0
Arguments:
For r3, 2 instructions must bed used to get the Render Mode of mpVideo from RKSystem, the first instruction slightly differ per region:
NTSC-U = lwz r3, -0x5CA8 (r13)
PAL = lwz r3, -0x5CA0 (r13)
NTSC-J = lwz r3, -0x5CA0 (r13)
NTSC-K = lwz r3, -0x5C80 (r13)
Then execute the 2nd instruction (region-free): lwz r3, 0x0 (r3)
r3 now contains the RenderMode
Return Value (r3):
Any negative value = Error
~~~
Function: DirectPrint: Printf w/ DirectPrint: StoreCache
Summary: Both functions should be executed back-to-back hence why they are coupled together. These functions will preform a printf-style function that draws on the TV Screen; DirectPrint: SetupFB must already have been called beforehand
Addresses (Printf first, StoreCache second)
NTSC-U = 0x80021DF0, 0x80021DD0
PAL = 0x80021E90, 0x80021E70
NTSC-J = 0x80021DB0, 0x80021D90
NTSC-K = 0x80021EF0, 0x80021ED0
Arguments (for Printf only, StoreCache has no arguments):
r3 = X Coordinate (Starts Far Left)
r4 = Y Coordinate (Starts Very Top)
r5 = 0 for No Text Wrap, 1 for Text Wrap (Wrapping allows the text to enter into a new line if it reaches the edge of the screen)
r6 = Address Pointer to ASCii-Hex String that will be Drawn on Screen
r7 thru r10 = Standard printf format non-float arguments
f1 thru f13 = Standard printf format float arguments
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
Another NOTE: If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 4*cr1+eq
Google printf Format for a list of format characters/symbols for use in the ASCii-Hex String.
Return Value (r3):
Any negative value = Error
~~~
Function: ISFS_CreateDir
Summary: Creates a new directory on the NAND
Addresses:
NTSC-U = 80169DD4
PAL = 0x80169E74
NTSC-J = 0x80169D94
NTSC-K = 0x80169F10
Arguments:
r3 = Address that points to the File Path w/ new Directory that will be created
r4 = 0x0 (u8 attributes)
r5 = 0x3 (owner permissions)
r6 = 0x3 (group permissions)
r7 - 0x3 (other permissions)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
##SPECIAL NOTE ABOUT ISFS_CreateDir & DOLPHIN##
Return value -105 will never occur on Dolphin for a Directory that already exists. It will instead return 0.
~~~
Function: ISFS_Delete
Summary: Delete a file or directory (recursively) from the NAND.
Addresses:
NTSC-U = 0x8016A6EC
PAL = 0x8016A78C
NTSC-J = 0x8016A6AC
NTSC-K = 0x8016A828
Arguments:
r3 = Address that points to file path
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_CreateFile
Summary: Creates a new file on the NAND, must use a pre-existing directory
Addresses:
NTSC-U = 0x8016ABD4
PAL = 0x8016AC74
NTSC-J = 0x8016AB94
NTSC-K = 0x8016AD10
Arguments:
r3 = Address that points to the File Path w/ new File that will be created
r4 = 0x0 (u8 attributes)
r5 = 0x3 (owner permissions)
r6 = 0x3 (group permissions)
r7 = 0x3 (other permissions)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Open
Summary: Opens a pre-existing file on the NAND to allow you to later read from it or write to it
Addresses:
NTSC-U = 0x8016ADBC
PAL = 0x8016AE5C
NTSC-J = 0x8016AD7C
NTSC-K = 0x8016AEF8
Arguments:
r3 = Address that points to the File Path
r4 = Permissions (Use 0x1 for Read, or 0x2 for Write)
Return Values (r3):
Success = File Descriptor Value Returned
View ISFS List at top for negative values
~~~
Function: ISFS_GetFileStats
Summary: Gets the file's size (in bytes). Can be useful before calling ISFS_Read if the file size is unknown.
Addresses:
NTSC-U = 0x8016AF3C
PAL = 0x8016AFDC
NTSC-J = 0x8016AEFC
NTSC-K = 0x8016B078
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Memory Address to dump file size value (word) to. Address must be 32 byte aligned aka is address divisible by 0x20?)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Seek
Summary: Only recommended for reading/writing in a particular region of a very large file when not reading/writing at the very beginning of said file. Use after Open, before Read/Write.
Addresses:
NTSC-U = 0x8016B0CC
PAL = 0x8016B16C
NTSC-J = 0x8016B08C
NTSC-K = 0x8016B208
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Offset from Location Mode aka where
r5 = Location Mode aka whence; 0x0 for Start of File, 0x1 = Current Spot of File, 0x2 = End of File
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Read
Summary: Read a file on the NAND to dump it's contents to a spot in Memory
Addresses:
NTSC-U = 0x8016B15C
PAL = 0x8016B1FC
NTSC-J = 0x8016B11C
NTSC-K = 0x8016B298
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Address that points where the File's data will be dumped to (must be 32 byte aligned aka is address divisible by 0x20?)
r5 = Amount of Bytes of Data to dump from the File
Return Value (r3):
If r3 value's equals r5, then Success.
View ISFS List at top for negative values
~~~
Function: ISFS_Write
Summary: Write to a file on the NAND.
Addresses:
NTSC-U = 0x8016B220
PAL = 0x8016B2C0
NTSC-J = 0x8016B1E0
NTSC-K = 0x8016B35C
Arguments:
r3 = File Descriptor (value that was returned from ISFSOpen)
r4 = Address that points to the string of data that will be used to write to the File (must be 32 byte aligned aka is address divisible by 0x20?)
r5 = Amount of Bytes of Data to write from the string
Return Value (r3):
If r3 value's equals r5, then Success.
View ISFS List at top for negative values
~~~
Function: ISFS_Close
Summary: Close a file after reading from it or writing to it. This function must be done after the read/write.
Addresses:
NTSC-U = 0x8016B2E4
PAL = 0x8016B384
NTSC-J = 0x8016B2A4
NTSC-K = 0x8016B420
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: OSFatal
Summary: Stops the game and displays a desired message on the TV screen. BG color, FG color, and text are all modifiable.
Addresses:
NTSC-U = 0x801A4E24
PAL = 0x801A4EC4
NTSC-J = 0x801A4DE4
NTSC-K = 0x801A5220
Arguments:
r3 = Address Pointer to Foreground (text) color
r4 = Address Pointer to Background color
r5 = Address Pointer to String of ASCII Text
Extra Notes:
Color = RRGGBBFF
RR = Red Value, GG = Green Value, BB = Blue Value
Return Value (r3): None ofc...
~~~
Function: OSShutdownSystem
Summary: Standard shutdown of the Wii.
Addresses:
NTSC-U = 0x801A84CC
PAL = 0x801A856C
NTSC-J = 0x801A848C
NTSC-K = 0x801A88C8
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSRestart
Summary: Reboots the game.
Addresses:
NTSC-U = 0x801A85E8
PAL = 0x801A8688
NTSC-J = 0x801A85A8
NTSC-K = 0x801A89E4
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSReturnToMenu
Summary: Returns you to the Wii Menu.
Addresses:
NTSC-U = 0x801A87B8
PAL = 0x801A8858
NTSC-J = 0x801A8778
NTSC-K = 0x801A8BB4
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSGetTime
Summary: Returns a 64 bit Time value base, that you can use later with the function OSTicksToCalendarTime to grab the data&time from the Wii's CPU.
Addresses:
NTSC-U = 0x801AACBC
PAL = 0x801AAD5C
NTSC-J = 0x801AAC7C
NTSC-K = 0x801AB0B8
Arguments: None
Return Values (r3, r4):
r3 = Upper 32 bits of Time Base
r4 = Lower 32 bits of Time Base
~~~
Function: OSTicksToCalendarTime
Summary: After you have executed the OSGetTime function, immediately execute this function to get the date&time.
Arguments:
r3 = Upper Time Base
r4 = Lower Time Base
r5 = Memory Address to Dump Date/Time to (have at least 0x28 space allocated to dump to)
Dumping Locations (all dumped as logical words):
r5 = Seconds
r5+4 = Minutes
r5+8 = Hours
r5+C = Day of Month
r5+10 = Month (read notes below)
r5+14 = Year (read notes below)
r5+18 = Day of Week (read notes below)
r5+1C = Day of Year (read notes below)
r5+20 = Milliseconds
r5+24 = Microseconds
Notes:
For the month, January starts off as 0.
For day of week, Sunday starts off as 0.
For day of year, Jan 1st starts off as 0.
For the year, if you want just the last two digits (2019/0x7E3 -> 19/0x13) use this equation..
Assume Year is placed into r5...
li r6, 100
divw r7, r5, r6
mullw r6, r7, r6
subf r5, r6, r5
r5 now equals last two digits of Year
Return value (r3): If any negative number, then error.
~~~
Function: _OSShutdownToSBY
Summary: Shuts down the Wii to 'Red' light mode (completely off) even if your Wii is configured to shut down to 'Yellow' light mode
Addresses:
NTSC-U = 0x801AB8C0
PAL = 0x801AB960
NTSC-J = 0x801AB880
NTSC-K = 0x801ABCBC
Arguments: None
Return Value (r3): None ofc...
~~~
Function: _OSHotReset
Summary: Reboots the Wii
Addresses:
NTSC-U = 0x801AB938
PAL = 0x801AB9D8
NTSC-J = 0x801AB8F8
NTSC-K = 0x801ABD34
Arguments: None
Return Value (r3): None ofc...
~~~
Function: _OSLaunchTitle
Summary: Launches desired Wii Channel
NOTE: It CAN load the Homebrew Channel, but CANNOT load the Region Select Channel.
Addresses:
NTSC-U = 0x801AD960
PAL = 0x801ADA00
NTSC-J = 0x801AD920
NTSC-K = 0x801ADD5C
Arguments:
r3 = Upper 32 Bits of Title ID (ASCii-Hex)
r4 = Lower 32 Bits of Title ID
Return Value (r3): None ofc...
~~~
Function: OSLaunchTitleI
Summary: Launches desired Wii Channel
NOTE: Cannot load Homebrew Channel
Addresses:
NTSC-U = 0x801ADEC0
PAL = 0x801ADF60
NTSC-J = 0x801ADE80
NTSC-K = 0x801AE2BC
Arguments:
r3 = Upper 32 Bits of Title ID (ASCii-Hex)
r4 = Lower 32 Bits of Title ID
r5 = 0x03010000
r6 = 0
Return Value (r3): None ofc...
~~~
Function: SCGetSimpleAddr
Summary: This will dump your Country Code, Region Residence Code, and Globe location from SYSCONF to a desired address. You will need at least 0x1008 blocks/bytes of free space.
Addresses:
NTSC-U = 0x801B1FD4
PAL = 0x801B2074
NTSC-J = 0x801B1F94
NTSC-K = 0x801B23D0
Arguments:
r3 = Address Where Country Code byte will be stored to (must be 32 bit aligned)
r3 + 0x1 = Address Where Region Residence byte will be stored to
r3 + 0x1004 = Address Where Globe Location word will be stored to
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Simple Address Data from SYSCONF.
~~~
Function: SCGetProductArea
Summary. This will dump your Console Area (3 Byte Capitalized ASCII) to a speicific address in Memory.
Addresses:
NTSC-U = 0x801B2300
PAL = 0x801B23A0
NTSC-J = 0x801B22C0
NTSC-K = 0x801B26FC
Arguments:
r3 = Address to Dump Console Area too
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Product Area from setting.txt.
~~~
Function: SCGetProductCode
Summary: This will dump the product code at a specific address in Static Memory. Once the product code is dumped, it will stay there until the Game is turned off
Addresses:
NTSC-U = 0x801B2384
PAL = 0x801B2424
NTSC-J = 0x801B2344
NTSC-K = 0x801B2780
Arguments: None
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Product Code from setting.txt.
~~~
Function: SCGetProductSN
Summary: This will dump the Serial Number at a specific address in Dynamic Memory. It will only be there during the DWC process of connecting to Wifi, then it will be cleared.
Addresses:
NTSC-U = 0x801B23C0
PAL = 0x801B2460
NTSC-J = 0x801B2380
NTSC-K = 0x801B27BC
Arguments: None
Return Value (r3):
If r3 = 1, then success. If not, then unable to get SN from setting.txt.
~~~
Function: NCDiGetWirelessMacAddress
Summary: This will dump your MAC Address at a speicific address in Dynamic Memory. It will only be there during the DWC process of connecting to Wifi, then it will be cleared. However, you can change the first argument (r3) to dump it to a different spot if needed and not have it cleared.
Addresses:
NTSC-U = 0x801D0CD0
PAL = 0x801D0D70
NTSC-J = 0x801D0C90
NTSC-K = 0x801D10CC
Arguments: r3 = Address to dump MAC to
Return Value (r3):
If r3 = 0, then success. If not, then error attempting to get MAC from dev/fs.
~~~
Function: NETCalcCRC32
Summary: Calculates a CRC32-bit checksum. This function is required if you are wanting to make a code to modify MKWii's data save file (rksys.dat)
Addresses:
NTSC-U = 0x801D1C00
PAL = 0x801D1CA0
NTSC-J = 0x801D1BC0
NTSC-K = 0x801D1FFC
Arguments (r3, r4):
r3 = Address Pointer to start of Contents in Memory to be used for the CRC32 Calculation
r4 = Amount of Bytes to be used for the CRC32 Calculation
Return Value (r3):
r3 = CRC32-bit checksum calculated from contents (word)
~~~
Function: EGG::Heap::alloc
Summary: Creates a block of empty memory for available use.
Addresses:
NTSC-U = 0x80229490
PAL = 0x80229814
NTSC-J = 0x80229734
NTSC-K = 0x80229B88
Arguments (r3, r4, r5):
r3 = Size of Memory Block in Bytes
r4 = Alignment of Memory Block (if not sure, use 0x20 for 32 bit alignment)
For r5, 2 instructions must be preformed. The first instruction (get pointer from System Heap) will vary per region...
NTSC-U = lwz r5, -0x5CA8 (r13)
PAL = lwz r5, -0x5CA0 (r13)
NTSC-J = lwz r5, -0x5CA0 (r13)
NTSC-K = lwz r5, -0x5C80 (r13)
Second instruction for r5: lwz r5, 0x0024 (r5)
r5 thus has the Heap to allocate memory block in
Return Value (r3):
r3 = Pointer to Beginning of new Heap to use
~~~
Function: EGG::Heap::free
Summary: Free the block of memory that was created from EGG::Heap::alloc
Addresses (r3, r4):
NTSC-U = 0x80229800
PAL = 0x80229B84
NTSC-J = 0x80229AA4
NTSC-K = 0x80229EF8
Arguments:
r3 = Return value from EGG::Heap::alloc (Pointer to Beginning of Heap)
For r4, 2 instructions must be preformed. The first instruction (get pointer from System Heap) will vary per region...
NTSC-U = lwz r4, -0x5CA8 (r13)
PAL = lwz r4, -0x5CA0 (r13)
NTSC-J = lwz r4, -0x5CA0 (r13)
NTSC-K = lwz r4, -0x5C80 (r13)
Second instruction for r4: lwz r4, 0x24 (r4)
Return Value (r3):
If r3 = 1, then Success. Heap is freed. If not, then some sort of error occured.
~~~
Credits:
Megazig
RiiDefi
Bushing
Star
This is a list of functions I have used in codes I have made or attempted to have made. Arguments, descriptions, and return values are provided. If you are wanting to view a list of many many more functions (not as detailed as this), view this thread HERE. There's no need to have essentially two symbol map type threads in the Resources sub-forum, hence why this thread is in Hacking General sub-forum.
ISFS Specific Return Values (r3)
For any function that has the term ISFS in it, they all have the same return value numbering. Here's a list of those values (shown in decimal form):
-1 = Permission Denied
-2 = File/Directory already exists
-4 = Invalid Register Argument
-6 = File/Directory not found
-8 = Resource busy
-12 = ECC error
-22 = Could not allocate Memory
-101 = Invalid Register Argument
-102 = Permission Denied
-105 = File/Directory already exists
-106 = File/Directory not found
-107 = Too many fds open
-108 = Memory is full
-109 = Too many fds open
-110 = Pathname is too long
-111 = fd already open
-114 = ECC error
-115 = Directory not empty
-116 = Max directory depth exceeded
-118 = Resource busy
-119 = Fatal error
Function: memcpy
Summary: Copies Data from a spot in Memory to another spot; useful for very large amounts of data
Address (region-free):
0x80005F34
Arguments:
r3 = Destination Start Address
r4 = Source Start Address
r5 = Amount of Bytes to Copy Over
Return Value:
r3 = Remains the same
~~~
Function: sprintf
Summary: Formats a String (C/C++ style) and stores string to desired memory location
Addresses:
NTSC-U 0x80010ECC
PAL = 0x80011A2C
NTSC-J = 0x80011950
NTSC-K = 0x80011A94
Arguments:
r3 = Address Pointer where Formatted String ASCii-Hex will be written to
r4 = Address Pointer where non-formatted ASCii-Hex String is located, must end in NULL
r5 thru r10 = Non-Float Values to be formatted
f1 thru f8 = Float Values to be formatted
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the sprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Value matching amount of bytes written to r3 (does not include the auto appended null byte at end) = Success
Any negative value = Error
~~~
Function: sscanf
Summary: Reads data from a Formatted C/C++ String.
Addresses:
NTSC-U too lazy to port lol
PAL = 0x80013040
NTSC-J = too lazy to port lol
NTSC-K = too lazy to port lol
Arguments:
r3 = Address Pointer where Formatted String ASCii-Hex is located at, must end in NULL
r4 = Address Pointer where non-formatted ASCii-Hex String is located, must end in NULL
r5 thru r10 varies depending on how many formatted values you need to read from the Formatted String (i.e. % items)
r5 thru r10 are pointer to where the dump the read data
Example:
r3 = Pointer to memory where the following string is at - "Bob is 25 years old"
For reading the "25" part of the string, set r4 pointer to point to this string "Bob is %d years old"
r5 will then need to be a pointer to dump the "25" to. %d is used because 25 is in decimal form. Let's say r5 is 0x80001500. After sscanf is called, at 0x80001500 will be the word value 0x00000019 (25 in decimal).
Haven't personally tested, but float values (i.e. %3.1f) should not use pointers. They should get placed directly into the FPRs, starting at f1.
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the sprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Items of Data that were successfully read = r3
If r3 = 0, no reading/conversions were done. If r3 is a negative value then r3 or r4 args were incorrect.
~~~
Function: swprintf
Summary: Formats a String (C/C++ style) using 16-bit ASCII (instead of 8 bit) and stores string to desired memory location
Addresses:
NTSC-U 0x80016CB4
PAL = 0x80017814
NTSC-J = 0x80017738
NTSC-K = 0x8001787C
Arguments:
r3 = Address Pointer where wide Formatted String will be written to
r4 = Number of characters to fill in the formatted string that will be written to r3's address, note its pretty hard to calculate this, thus you can just put this as a crazy high number because the function itself will autocap to the max of the formatted string. Thank you Seeky!
r5 = Address Pointer where non-formatted String is located, must end in NULL
r6 thru r10 = Integer Values to be formatted
f1 thru f8 = Float Values to be formatted
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
More NOTES:
If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 6 (same as creqv 6, 6, 6)
If NOT using Float values, its recommended (not needed) to use this instruction right before the function call - crclr 6 (same as crxor 6, 6, 6); This tells the swprintf function not to backup Floats to the stack since no Floats are used.
Here is a handy page for printf formats - https://alvinalexander.com/programming/p...eat-sheet/
Return Value (r3):
Positive Value = Success; amount of halfwords written
-1 = Error; r4's value was too low. Formatted string will still be there but the function is letting you know its incomplete
~~~
Function: DirectPrint: SetupFB
Summary: Sets up a Frame Buffer to allow later use of DirectPrint: Printf & DirectPrint: StoreCache
Addresses:
NTSC-U 0x800223E0
PAL 0x80022480
NTSC-J 0x800223A0
NTSC-K 0x800224E0
Arguments:
For r3, 2 instructions must bed used to get the Render Mode of mpVideo from RKSystem, the first instruction slightly differ per region:
NTSC-U = lwz r3, -0x5CA8 (r13)
PAL = lwz r3, -0x5CA0 (r13)
NTSC-J = lwz r3, -0x5CA0 (r13)
NTSC-K = lwz r3, -0x5C80 (r13)
Then execute the 2nd instruction (region-free): lwz r3, 0x0 (r3)
r3 now contains the RenderMode
Return Value (r3):
Any negative value = Error
~~~
Function: DirectPrint: Printf w/ DirectPrint: StoreCache
Summary: Both functions should be executed back-to-back hence why they are coupled together. These functions will preform a printf-style function that draws on the TV Screen; DirectPrint: SetupFB must already have been called beforehand
Addresses (Printf first, StoreCache second)
NTSC-U = 0x80021DF0, 0x80021DD0
PAL = 0x80021E90, 0x80021E70
NTSC-J = 0x80021DB0, 0x80021D90
NTSC-K = 0x80021EF0, 0x80021ED0
Arguments (for Printf only, StoreCache has no arguments):
r3 = X Coordinate (Starts Far Left)
r4 = Y Coordinate (Starts Very Top)
r5 = 0 for No Text Wrap, 1 for Text Wrap (Wrapping allows the text to enter into a new line if it reaches the edge of the screen)
r6 = Address Pointer to ASCii-Hex String that will be Drawn on Screen
r7 thru r10 = Standard printf format non-float arguments
f1 thru f13 = Standard printf format float arguments
NOTE: You must use single precision (lfs instruction) if loading floats from memory into FPRs
Another NOTE: If using Float Values ,then this instruction must be required after the lfs (before the function call) - crset 4*cr1+eq
Google printf Format for a list of format characters/symbols for use in the ASCii-Hex String.
Return Value (r3):
Any negative value = Error
~~~
Function: ISFS_CreateDir
Summary: Creates a new directory on the NAND
Addresses:
NTSC-U = 80169DD4
PAL = 0x80169E74
NTSC-J = 0x80169D94
NTSC-K = 0x80169F10
Arguments:
r3 = Address that points to the File Path w/ new Directory that will be created
r4 = 0x0 (u8 attributes)
r5 = 0x3 (owner permissions)
r6 = 0x3 (group permissions)
r7 - 0x3 (other permissions)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
##SPECIAL NOTE ABOUT ISFS_CreateDir & DOLPHIN##
Return value -105 will never occur on Dolphin for a Directory that already exists. It will instead return 0.
~~~
Function: ISFS_Delete
Summary: Delete a file or directory (recursively) from the NAND.
Addresses:
NTSC-U = 0x8016A6EC
PAL = 0x8016A78C
NTSC-J = 0x8016A6AC
NTSC-K = 0x8016A828
Arguments:
r3 = Address that points to file path
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_CreateFile
Summary: Creates a new file on the NAND, must use a pre-existing directory
Addresses:
NTSC-U = 0x8016ABD4
PAL = 0x8016AC74
NTSC-J = 0x8016AB94
NTSC-K = 0x8016AD10
Arguments:
r3 = Address that points to the File Path w/ new File that will be created
r4 = 0x0 (u8 attributes)
r5 = 0x3 (owner permissions)
r6 = 0x3 (group permissions)
r7 = 0x3 (other permissions)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Open
Summary: Opens a pre-existing file on the NAND to allow you to later read from it or write to it
Addresses:
NTSC-U = 0x8016ADBC
PAL = 0x8016AE5C
NTSC-J = 0x8016AD7C
NTSC-K = 0x8016AEF8
Arguments:
r3 = Address that points to the File Path
r4 = Permissions (Use 0x1 for Read, or 0x2 for Write)
Return Values (r3):
Success = File Descriptor Value Returned
View ISFS List at top for negative values
~~~
Function: ISFS_GetFileStats
Summary: Gets the file's size (in bytes). Can be useful before calling ISFS_Read if the file size is unknown.
Addresses:
NTSC-U = 0x8016AF3C
PAL = 0x8016AFDC
NTSC-J = 0x8016AEFC
NTSC-K = 0x8016B078
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Memory Address to dump file size value (word) to. Address must be 32 byte aligned aka is address divisible by 0x20?)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Seek
Summary: Only recommended for reading/writing in a particular region of a very large file when not reading/writing at the very beginning of said file. Use after Open, before Read/Write.
Addresses:
NTSC-U = 0x8016B0CC
PAL = 0x8016B16C
NTSC-J = 0x8016B08C
NTSC-K = 0x8016B208
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Offset from Location Mode aka where
r5 = Location Mode aka whence; 0x0 for Start of File, 0x1 = Current Spot of File, 0x2 = End of File
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: ISFS_Read
Summary: Read a file on the NAND to dump it's contents to a spot in Memory
Addresses:
NTSC-U = 0x8016B15C
PAL = 0x8016B1FC
NTSC-J = 0x8016B11C
NTSC-K = 0x8016B298
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
r4 = Address that points where the File's data will be dumped to (must be 32 byte aligned aka is address divisible by 0x20?)
r5 = Amount of Bytes of Data to dump from the File
Return Value (r3):
If r3 value's equals r5, then Success.
View ISFS List at top for negative values
~~~
Function: ISFS_Write
Summary: Write to a file on the NAND.
Addresses:
NTSC-U = 0x8016B220
PAL = 0x8016B2C0
NTSC-J = 0x8016B1E0
NTSC-K = 0x8016B35C
Arguments:
r3 = File Descriptor (value that was returned from ISFSOpen)
r4 = Address that points to the string of data that will be used to write to the File (must be 32 byte aligned aka is address divisible by 0x20?)
r5 = Amount of Bytes of Data to write from the string
Return Value (r3):
If r3 value's equals r5, then Success.
View ISFS List at top for negative values
~~~
Function: ISFS_Close
Summary: Close a file after reading from it or writing to it. This function must be done after the read/write.
Addresses:
NTSC-U = 0x8016B2E4
PAL = 0x8016B384
NTSC-J = 0x8016B2A4
NTSC-K = 0x8016B420
Arguments:
r3 = File Descriptor (value that was returned from ISFS_Open)
Return Value (r3):
0 = Success
View ISFS List at top for negative values
~~~
Function: OSFatal
Summary: Stops the game and displays a desired message on the TV screen. BG color, FG color, and text are all modifiable.
Addresses:
NTSC-U = 0x801A4E24
PAL = 0x801A4EC4
NTSC-J = 0x801A4DE4
NTSC-K = 0x801A5220
Arguments:
r3 = Address Pointer to Foreground (text) color
r4 = Address Pointer to Background color
r5 = Address Pointer to String of ASCII Text
Extra Notes:
Color = RRGGBBFF
RR = Red Value, GG = Green Value, BB = Blue Value
Return Value (r3): None ofc...
~~~
Function: OSShutdownSystem
Summary: Standard shutdown of the Wii.
Addresses:
NTSC-U = 0x801A84CC
PAL = 0x801A856C
NTSC-J = 0x801A848C
NTSC-K = 0x801A88C8
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSRestart
Summary: Reboots the game.
Addresses:
NTSC-U = 0x801A85E8
PAL = 0x801A8688
NTSC-J = 0x801A85A8
NTSC-K = 0x801A89E4
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSReturnToMenu
Summary: Returns you to the Wii Menu.
Addresses:
NTSC-U = 0x801A87B8
PAL = 0x801A8858
NTSC-J = 0x801A8778
NTSC-K = 0x801A8BB4
Arguments: None
Return Value (r3): None ofc...
~~~
Function: OSGetTime
Summary: Returns a 64 bit Time value base, that you can use later with the function OSTicksToCalendarTime to grab the data&time from the Wii's CPU.
Addresses:
NTSC-U = 0x801AACBC
PAL = 0x801AAD5C
NTSC-J = 0x801AAC7C
NTSC-K = 0x801AB0B8
Arguments: None
Return Values (r3, r4):
r3 = Upper 32 bits of Time Base
r4 = Lower 32 bits of Time Base
~~~
Function: OSTicksToCalendarTime
Summary: After you have executed the OSGetTime function, immediately execute this function to get the date&time.
Arguments:
r3 = Upper Time Base
r4 = Lower Time Base
r5 = Memory Address to Dump Date/Time to (have at least 0x28 space allocated to dump to)
Dumping Locations (all dumped as logical words):
r5 = Seconds
r5+4 = Minutes
r5+8 = Hours
r5+C = Day of Month
r5+10 = Month (read notes below)
r5+14 = Year (read notes below)
r5+18 = Day of Week (read notes below)
r5+1C = Day of Year (read notes below)
r5+20 = Milliseconds
r5+24 = Microseconds
Notes:
For the month, January starts off as 0.
For day of week, Sunday starts off as 0.
For day of year, Jan 1st starts off as 0.
For the year, if you want just the last two digits (2019/0x7E3 -> 19/0x13) use this equation..
Assume Year is placed into r5...
li r6, 100
divw r7, r5, r6
mullw r6, r7, r6
subf r5, r6, r5
r5 now equals last two digits of Year
Return value (r3): If any negative number, then error.
~~~
Function: _OSShutdownToSBY
Summary: Shuts down the Wii to 'Red' light mode (completely off) even if your Wii is configured to shut down to 'Yellow' light mode
Addresses:
NTSC-U = 0x801AB8C0
PAL = 0x801AB960
NTSC-J = 0x801AB880
NTSC-K = 0x801ABCBC
Arguments: None
Return Value (r3): None ofc...
~~~
Function: _OSHotReset
Summary: Reboots the Wii
Addresses:
NTSC-U = 0x801AB938
PAL = 0x801AB9D8
NTSC-J = 0x801AB8F8
NTSC-K = 0x801ABD34
Arguments: None
Return Value (r3): None ofc...
~~~
Function: _OSLaunchTitle
Summary: Launches desired Wii Channel
NOTE: It CAN load the Homebrew Channel, but CANNOT load the Region Select Channel.
Addresses:
NTSC-U = 0x801AD960
PAL = 0x801ADA00
NTSC-J = 0x801AD920
NTSC-K = 0x801ADD5C
Arguments:
r3 = Upper 32 Bits of Title ID (ASCii-Hex)
r4 = Lower 32 Bits of Title ID
Return Value (r3): None ofc...
~~~
Function: OSLaunchTitleI
Summary: Launches desired Wii Channel
NOTE: Cannot load Homebrew Channel
Addresses:
NTSC-U = 0x801ADEC0
PAL = 0x801ADF60
NTSC-J = 0x801ADE80
NTSC-K = 0x801AE2BC
Arguments:
r3 = Upper 32 Bits of Title ID (ASCii-Hex)
r4 = Lower 32 Bits of Title ID
r5 = 0x03010000
r6 = 0
Return Value (r3): None ofc...
~~~
Function: SCGetSimpleAddr
Summary: This will dump your Country Code, Region Residence Code, and Globe location from SYSCONF to a desired address. You will need at least 0x1008 blocks/bytes of free space.
Addresses:
NTSC-U = 0x801B1FD4
PAL = 0x801B2074
NTSC-J = 0x801B1F94
NTSC-K = 0x801B23D0
Arguments:
r3 = Address Where Country Code byte will be stored to (must be 32 bit aligned)
r3 + 0x1 = Address Where Region Residence byte will be stored to
r3 + 0x1004 = Address Where Globe Location word will be stored to
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Simple Address Data from SYSCONF.
~~~
Function: SCGetProductArea
Summary. This will dump your Console Area (3 Byte Capitalized ASCII) to a speicific address in Memory.
Addresses:
NTSC-U = 0x801B2300
PAL = 0x801B23A0
NTSC-J = 0x801B22C0
NTSC-K = 0x801B26FC
Arguments:
r3 = Address to Dump Console Area too
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Product Area from setting.txt.
~~~
Function: SCGetProductCode
Summary: This will dump the product code at a specific address in Static Memory. Once the product code is dumped, it will stay there until the Game is turned off
Addresses:
NTSC-U = 0x801B2384
PAL = 0x801B2424
NTSC-J = 0x801B2344
NTSC-K = 0x801B2780
Arguments: None
Return Value (r3):
If r3 = 1, then success. If not, then unable to get Product Code from setting.txt.
~~~
Function: SCGetProductSN
Summary: This will dump the Serial Number at a specific address in Dynamic Memory. It will only be there during the DWC process of connecting to Wifi, then it will be cleared.
Addresses:
NTSC-U = 0x801B23C0
PAL = 0x801B2460
NTSC-J = 0x801B2380
NTSC-K = 0x801B27BC
Arguments: None
Return Value (r3):
If r3 = 1, then success. If not, then unable to get SN from setting.txt.
~~~
Function: NCDiGetWirelessMacAddress
Summary: This will dump your MAC Address at a speicific address in Dynamic Memory. It will only be there during the DWC process of connecting to Wifi, then it will be cleared. However, you can change the first argument (r3) to dump it to a different spot if needed and not have it cleared.
Addresses:
NTSC-U = 0x801D0CD0
PAL = 0x801D0D70
NTSC-J = 0x801D0C90
NTSC-K = 0x801D10CC
Arguments: r3 = Address to dump MAC to
Return Value (r3):
If r3 = 0, then success. If not, then error attempting to get MAC from dev/fs.
~~~
Function: NETCalcCRC32
Summary: Calculates a CRC32-bit checksum. This function is required if you are wanting to make a code to modify MKWii's data save file (rksys.dat)
Addresses:
NTSC-U = 0x801D1C00
PAL = 0x801D1CA0
NTSC-J = 0x801D1BC0
NTSC-K = 0x801D1FFC
Arguments (r3, r4):
r3 = Address Pointer to start of Contents in Memory to be used for the CRC32 Calculation
r4 = Amount of Bytes to be used for the CRC32 Calculation
Return Value (r3):
r3 = CRC32-bit checksum calculated from contents (word)
~~~
Function: EGG::Heap::alloc
Summary: Creates a block of empty memory for available use.
Addresses:
NTSC-U = 0x80229490
PAL = 0x80229814
NTSC-J = 0x80229734
NTSC-K = 0x80229B88
Arguments (r3, r4, r5):
r3 = Size of Memory Block in Bytes
r4 = Alignment of Memory Block (if not sure, use 0x20 for 32 bit alignment)
For r5, 2 instructions must be preformed. The first instruction (get pointer from System Heap) will vary per region...
NTSC-U = lwz r5, -0x5CA8 (r13)
PAL = lwz r5, -0x5CA0 (r13)
NTSC-J = lwz r5, -0x5CA0 (r13)
NTSC-K = lwz r5, -0x5C80 (r13)
Second instruction for r5: lwz r5, 0x0024 (r5)
r5 thus has the Heap to allocate memory block in
Return Value (r3):
r3 = Pointer to Beginning of new Heap to use
~~~
Function: EGG::Heap::free
Summary: Free the block of memory that was created from EGG::Heap::alloc
Addresses (r3, r4):
NTSC-U = 0x80229800
PAL = 0x80229B84
NTSC-J = 0x80229AA4
NTSC-K = 0x80229EF8
Arguments:
r3 = Return value from EGG::Heap::alloc (Pointer to Beginning of Heap)
For r4, 2 instructions must be preformed. The first instruction (get pointer from System Heap) will vary per region...
NTSC-U = lwz r4, -0x5CA8 (r13)
PAL = lwz r4, -0x5CA0 (r13)
NTSC-J = lwz r4, -0x5CA0 (r13)
NTSC-K = lwz r4, -0x5C80 (r13)
Second instruction for r4: lwz r4, 0x24 (r4)
Return Value (r3):
If r3 = 1, then Success. Heap is freed. If not, then some sort of error occured.
~~~
Credits:
Megazig
RiiDefi
Bushing
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