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IOP Relocatable eXecutable (IRX) are ELF files that will run on the I/O Processor (IOP) in the PS2, they can export some of their functions, as well as import from other IRX.
IOP Relocatable eXecutable (IRX) are the library files that you can dynamically link your application code to and will run on the I/O Processor (IOP) in the PS2.


You can load an IOP Module from Emotion Engine code using one of the following API commands:
You can load an IOP Module from Emotion Engine code using one of the following API commands:
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* sceSifLoadModuleBuffer()
* sceSifLoadModuleBuffer()
* sceSifLoadStartModuleBuffer()
* sceSifLoadStartModuleBuffer()
* sceSifLoadStartModuleBuffer()
* sceSifLoadStartModuleBuffer
 
You should be able to find some of these in the MODULES folder of a PS2 disc (but the folder depends on the disc).<br>
However, modules Wich are loaded at boot (eg: SECRMAN) can only be replaced/updated by using an IOPRP image.
 
On games, you usually see IOPRP files with this name format: '''IOPRPxxx.IMG'''
where xxx is the SDK version
 
You should be able to find some of these in some folders inside PS2 disc, the usual names are '''MODULES''', '''IOP''', '''IRX'''.<br>




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