IGR - a.k.a. In Game Reset, a feature know from few other consoles. Why not implement it for PS2?
The basic concept is simple:
1. Detect pad button presses.
2. Launch apropriate app on particular button combo.
Although it looks simple, it's not that easy to do, especially that I wanted to make it EE side only, which means no code on IOP side (there are good reasons for that). Launching the application from the middle of running another app is also not that easy, as a lot of caution is required (and I had some serious problems with sif, though I was able to get rid of it by modifying SifInitCmd function a little bit).
Take this one as the proof of concept rather than working app (more concept than proof I would say
).
The IGR_mc.elf file after becoming resident will launch file in:
mcx:/BOOT/BOOT.ELF
mcx:/B?DATA-SYSTEM/BOOT.ELF
where "x" is memory card slot and "?" is regional code.
(to be true I tested it mostly with one app, so I recommend using uLE, tested on uLE 4.28)
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