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Welcome to the UNFLoader wiki

This wiki contains information relevant to developers wishing to extend the UNFLoader tool and/or libraries.

These pages document useful information about the UNFLoader tool, the libraries, and the supported flashcarts. Explanations on how to extend the tool's functionalities are also provided.

For simplification of the documentation process, the pages were ordered in a specific way and it is recommended that you read the pages in the order they are numbered (as subsequent entries build on knowledge from the last ones). The chapters are short and will give you a very good overview of the program and libraries.

There are two competing SDKs for the N64, libultra and libdragon. To make the code nicer to read, the low level IO functions provided by the SDK have been wrapped into their own custom functions. These functions will be referenced throughout the wiki so it will help to be familiar with them. Here's a handy dandy table to help you quickly convert between the USB library's implementation and your SDK's:

USB Library	libultra	libdragon
usb_io_read	osPiReadIo	io_read
usb_io_write	osPiWriteIo	io_write
usb_dma_read	osPiStartDma with OS_READ	dma_read
usb_dma_write	osPiStartDma with OS_WRITE	dma_write
No wrapper exists	osWritebackDCache	data_cache_hit_writeback
No wrapper exists	osInvalDCache	data_cache_hit_invalidate
No wrapper exists	osWritebackDCacheAll	data_cache_hit_writeback_invalidate