> > On the Medium course I often encounter something invisible which jolts the car and
> > slows it down. It seems to mostly be in a certain part of the track.
>
> entirely possible
>
> I seem to remember ElSemi had an issue with Sega Rally doing similar and fixed it in
> his emulator, could be those fixes never made it back, or it's a related but slightly
> different bug.
>
> Virtua Racing is also currently using code taken from Daytona instead of it's own,
> because there is currently no method to dump the actual internal code on a VR, that
> could also be causing issues.
Yes, that was caused by wrong float rounding modes, causing the TGP and i960 compute different values. It happened in Daytona, I think in the inner part of the first curve, that there was like an invisible "bump".
What I can't remember is if the issue was in the i960, the TGP or both.
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