Editing PS2 Emulation
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|VIF1 runs too fast || Urban reign, Avatar, Parappa 2, Eternal Poison, Soul Calibur 2, Soul Calibur 3, Others || Using LUA's SchedulerDelayEvent command or Using CLI'S vif1-instant-xfer command || Sony wanted to improve the performance, which is the reason VIF1 is instant. The lua's command can be customizable to set the delay period, the cli can't, therefore lua's command is much more compatible | |VIF1 runs too fast || Urban reign, Avatar, Parappa 2, Eternal Poison, Soul Calibur 2, Soul Calibur 3, Others || Using LUA's SchedulerDelayEvent command or Using CLI'S vif1-instant-xfer command || Sony wanted to improve the performance, which is the reason VIF1 is instant. The lua's command can be customizable to set the delay period, the cli can't, therefore lua's command is much more compatible | ||
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|Reading VU TPC registers returns wrong values || Street Fighter 3 EX(VU0), R: Racing Revolution(VU0), Spiderman 3 (VU0, in T-Bit handler...), Edge of Reality games(VU1) || Patches in lua. || In this emu TPC | |Reading VU TPC registers returns wrong values || Street Fighter 3 EX(VU0), R: Racing Revolution(VU0), Spiderman 3 (VU0, in T-Bit handler...), Edge of Reality games(VU1) || Patches in lua. || In this emu TPC store full address which is wrong. Real hardware keep there addr >> 3. Worth to note that EoR games read VU1 TPC in nasty way, accessing 0x43A0(VU1 TPC) from COP2 code. | ||
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|VIF command interrupts handled before VIFn_CODE is updated. || Onimusha Blade Warriors || Fixed by patch in intr handler. || This is very specific case because Onimusha check VIFn_CODE register in interrupt handler and do nothing if code is not 0x80 (NOP with I). But VIFn_CODE seems to be updated after interrupt is handled. This practically | |VIF command interrupts handled before VIFn_CODE is updated. || Onimusha Blade Warriors || Fixed by patch in intr handler. || This is very specific case because Onimusha check VIFn_CODE register in interrupt handler and do nothing if code is not 0x80 (NOP with I). But VIFn_CODE seems to be updated after interrupt is handled. This practically make everything out of sync later as interrupts are happening, but handler do nothing about them. | ||
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| IPU emulation inaccuracy || Burnout 3, Tony Hawk's Underground, Onimusha Dawn of Dreams || ? || | | IPU emulation inaccuracy || Burnout 3, Tony Hawk's Underground, Onimusha Dawn of Dreams || ? || | ||
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| CDVD register 0x1F402038 (KeysValid) return wrong result. || Every "SCCS" game || Patches in lua. || Likely specific to NTSC-C releases, because that region | | CDVD register 0x1F402038 (KeysValid) return wrong result. || Every "SCCS" game || Patches in lua. || Likely specific to NTSC-C releases, because that region use special SDK. Issue make cdvdman stuck on any request because it thinks that cdvd key is invalid. | ||
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| Lack of CDVD error handling || Demon Chaos, Spyro A new Beginning, Silent Hill 2 Black Ribbon, games from pcsx2 #5174 PR. || Patches in lua if needed. || One correctly supported error is SCECdErABRT, rest is just not handled or what's worst trigger emu panic on purpose like SCECdErILI (but not for 0 sector request - Spyro). Some affected games can still work if error is just accidental and not checked by game code. | | Lack of CDVD error handling || Demon Chaos, Spyro A new Beginning, Silent Hill 2 Black Ribbon, games from pcsx2 #5174 PR. || Patches in lua if needed. || One correctly supported error is SCECdErABRT, rest is just not handled or what's worst trigger emu panic on purpose like SCECdErILI (but not for 0 sector request - Spyro). Some affected games can still work if error is just accidental and not checked by game code. | ||