#Epsxe recompile block update#
#Epsxe recompile block code#
#Epsxe recompile block ps2#

Quote:We've had more games break because of SPU emulation quirks than because of EE or IOP onesĭon't get me started on that one again! :lol:Īlthough it wasn't that bad on PS1 though - the cdrom core >60% PS1 game breakage. So it'll likely be in your r3000 core too. We didn't handle this (can't remember if it was fixed). This would cause the translation to detect emus and show a message (like d4s Breath of Fire 2 translation). I remember notaz mentioning Shadow Master This one was researched and these were the findings (above). I think it was used somewhere in the town (geometry). We do have 1 game that makes use of a double branch sequence (Threads of Fate). Just sharing what I've learned and see if it spares your team a little pain.Īfter my time with pcsxr (no longer), I prefer to 'openly' muse about my thoughts as large blobs (for private reasons).

I don't plan on helping out (much) with pcsx2.

#Epsxe recompile block code#

So the current code may not be accurate either. Thing is, we haven't done much testing when I was actively around. Making a new one would work better though (imo). Doesn't match up with the pcsxr interpreter. The PCSX® recompiler is badly damaged also. I'm sure I have the notes so I'll make sure to shore them up again. There's been some discoveries since the old PCSX days.

we had someone working on a new IOP rec but the project was never finished. Quote:Our IOP (r3000) rec is pretty outdated and afaik its likely an old version of pcsx's recompiler at-heart. Caused Rue / Mint (Threads of Fate) to keep walking into invisible walls (PS1 major game breaker).

#Epsxe recompile block ps2#

if the current code isn't doing that then its wrong.Ĭurrent ps2 r3000 code bluntly ignores div(u) 0 case. Quote:shalma the ps2's r3000 should behave the same way as the one on the ps1 does. :lol: But I'll keep it in mind if my heart changes. Thanks for the IRC invite - I usually avoid chat rooms though (sucks up way too much of my time). (stuff like beq - beq jr - jr - addi sp lbu - beq - nop jr - lbu -> sb) I've got more to ask - must dig up my notes though. Just wondering if this affects the PS2 at all. Never calls jal because the cpu I-cache always runs beq-sw. Normally I wouldn't care but Gameshark CDX + Formula One 2001 take advantage of this (running stale code in cpu while dynamically changing the code in memory).

#Epsxe recompile block update#

On the PS1 r3000, main memory writes do not update the I-cache lines. I think I read in your r5900 core that writes to main memory flush the I-cache line with correct opcodes? PS1 Threads of Fate uses div 0 (infamous emulation bug). I saw that r5900 has the div 0 -> 1:-1 + remainder. Rather unfamiliar with the PS2 internals but I have a short list of questions about whether the PS2 engineers kept some of the (bastard) things that gave PS1 devs trouble. Hi - I've spent some time (probably >50% of it reversing ePSXe) with PS1 development.