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| 0 || || Takes 4 bytes of input, and produces 0 bytes output.
| 0 || || Takes 4 bytes of input, and produces 0 bytes output.
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| 1 || || Takes an X descriptor, and produces, 8 bytes output.
| 1 || FsFile_Exists || Takes an X descriptor, and produces, 8 bytes output.
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| 2 || || Takes 0x18 bytes of input, a B descriptor, and an X descriptor, and produces 0 bytes of output.
| 2 || || Takes 0x18 bytes of input, a B descriptor, and an X descriptor, and produces 0 bytes of output.
This seems to interface with [[USB_services|usb:ds]]. SystemInitializer only uses cmd1..cmd3.
This seems to interface with [[USB_services|usb:ds]]. SystemInitializer only uses cmd1..cmd3.
== FsFile_Exists ==
Takes an input path string, returns 8-bytes for the output u8 flag.
Checks whether the specified file exists.
This is "FsFile::Exists" in SystemInitializer.