Games that do wonky stuff with COP2/VU0

[PSI-Rockin]

This is for games that either have race conditions between the EE and VU0, abuse COP2 pipelining, or have extremely tight timings.

General timings

• Jak & Daxter series. Games will start a VU0 microprogram and then load data into VU0 registers on the fly using COP2.
• Gran Turismo 4 (possibly Gran Turismo 3 as well?)
• Ratchet & Clank. Uses VSQRT without VWAITQ and expects Q to be updated after 7 or less EE cycles.

Flag ops

• BIOS. Doesn't care if pipeline updates are instant but if flags are updated normally, breaks if FMAC stalls aren't implemented.

Strict M-bit timings

• Totally Spies Totally Party
• My Street
• Mike Tyson Heavyweight Boxing

Edge cases/misc

• Marvel Nemesis: Rise of the Imperfects. Seems to rely on not only COP2/VU0 sync, but also VU0/VU1 sync. Possibly requires cycle-count accuracy.

More examples to be added later.

[ghost]

The find my own way tech demo is affected too.

[ghost]

• Panzer Elite Action - Fields of Glory : Strict M-bit timings.