After successful implementation of microcode for Star Wars - Rogue Squadron, olivieryuyu and me are continuing to work on High Level Emulation issues. olivieryuyu decoded the method used by F-Zero microcode to add "reflections" on cars in game. It was missing in HLE mode until now. "Reflections" are in quotes because it is not actually a reflection. I'll explain it in my blog: http://gliden64.blogspot.ru.
Another fix is red border around the car in attack mode. This feature related to blending and thus not related to HLE. I fixed it to make the game fully emulated.
Beta build with source code is available for patrons with early access.
Our next step is implementation of custom lighting method for The Legend of Zelda: Majora's Mask. Stay tuned!