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194 bytes added ,  04:55, 1 September 2017
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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.
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| 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.
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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.
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== FsFile_Exists ==
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Takes an input path string, returns 8-bytes for the output u8 flag.
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Checks whether the specified file exists.
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This is "FsFile::Exists" in SystemInitializer.

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