TPC Register Issue (used in Street Fighter EX3)

[ghost]

It appears to have a similar issue to the one pcsx2 used to have with the games cloth physics. I've linked to the original fix they did

PCSX2/pcsx2#1835

[jpd002]

Cool! I'll need to make an hardware test out of that!

[ghost]

neat, glad that helps! Will your test possibly clarify the section he was unsure of with the TPC register? At any rate it's nice seeing more games working 😀

[jpd002]

I've added the hardware test: unknownbrackets/ps2autotests@dd3671d.
Made the fix in the emulator: https://github.com/jpd002/Play-/tree/tpc_reg
The clothes in SFEX3 are better, but are still broken, probably due to VU flag issues. Going to merge the branch soon.

[ghost]

And what about R racing evolution? It use this feature too.

Edit: The NTSC-J version of Street fighter ex3 use some CDVD flags, here is PCSX2 PR that fixed this version of the game: https://github.com/PCSX2/pcsx2/pull/1709/files

[jpd002]

I don't have R Racing Evolution, but it might be interesting to try it.

Play! doesn't emulate the low level CDVD functions (everything's done through the HLE IOP modules), but it might interesting to try that version of the game to see if everything's ok.

[jpd002]

Before:

After:

Closing this since it's now in master branch.

[ghost]

Seems to be working properly at least from what I can see. Too bad about the graphical bugs though. Is the VU in charge of clipping the polygons in game or something? Ah I'm the one who opened the issue originally by the way

[jpd002]

The VU micro program in SFEX3 is relying on the negative sticky flag and I don't think that's handled properly in the emulator.