Editing PS2 Emulation

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<br>'''More about the bios'''
<br>'''More about the bios'''
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The version of the bios seems to be developement v2.20 from the Japanese region (22/01/2007), and is not limited to booting only NTSC-J games.
Bios version seems to be Developement v2.20 from Japan region (22/01/2007), but it's of course not limited to booting only NTSC-J games.
Emulator not support USB peripherals, but this seems to be not limitation of BIOS, as it is used also in CECH C/E PS3 consoles.  
Emulator not support USB peripherals, but this seems to be not limitation of BIOS, as it is used also in CECH C/E PS3 consoles.  
There are signs that different bios version exist, named PS20190AC20030623_nordram_miniOSD.bin. This bios has included handy extensions for debugging, and can debug print with "debug osd verbosity" from CLI set to "verbose". The most noticeable difference for both bios files seems to be the special RDRAM module.
There are signs that different bios version exist, named PS20190AC20030623_nordram_miniOSD.bin. This bios have included handy extensions for debugging, and can debug print with "debug osd verbosity" from CLI set to "verbose". Most noticeable difference for both bios files seems to be special RDRAM module.


While PS3 patches its bios to preferred regions, PS4 uses a so called CallHook which is better known for pcsx2 users as fastboot. No need to describe this patch here, just look at PCSX2 fastboot code. It's the same code, but the only difference is that PS4 emus don't have patches for different bios revisions.
While PS3 emulators patch bios to preferred region, emulator used in PS4 uses a so called CallHook which is better known for pcsx2 users as fastboot. No need to describe patch here, just look at PCSX2 fastboot code. It's the same code, but PS4 emus don't have patches for different bios revisions.
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<br>'''Bios file information:'''
<br>'''Bios file information:'''
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