I'm sorry to say this but I'm not buying it, the code reads as no speed influence, so maybe your test sample wasn't big enough

yeah if range is 127+ you always hit, you can ignore the slot priority thing, and as for rounding, there is no rounding but it is all integer math so division is rounded in a sense

For physical its speed dependent, for magic its wisdom. For full info take a look at this file.

I'd like to start the discussion about adding Duckstation as a viable emulator for running this game. Duckstation is a modern emulator compared to ePSXe and is also considered to be the most hardware accurate emulator.

For comparison, I've finished a run on Duckstation using the same rules used in Spyro 2 speedrunning ("All enhancements disabled": enabled, "Enable Cheats": disabled, "Show settings": enabled). This run should demonstrate that Duckstation is accurate enough towards the hardware to be considered a viable run. I've flashed the settings at ~8 mins and the finished run starts at around ~58 mins.

if the VOD expires, I'll upload the video to youtube