forums.ps2dev.org

I'm not sure, but a while back I saw in one of the previous posts that IMG files contain "ROM images"? I saw one of them in a game dvd and tried loading it on the IOP via SifIopReset and UDNL. That seems to work because I can print output to screen via print_scr after the reset (I do an IopSync as well.) However, as soon as I try SifRpcInit(0), my code freezes. What could be the reason for this?

Thanks in advance.

It is probable that the version of sifrpc is different between the IOP IMG file and the one in ps2sdk. This is cause ps2sdk targets the IOP systems which come by default on the ROM which is quite old (and crappy :P) where as all games update it. There is little you can do probably other than trying to write your own sifrpc based on reversing the game's EE executable.

Of course I could be wrong :P