I've made some great progress on getting the new clipping code working with the PSP's VFPU. Actually, so far I've just been working on getting various matrix/vector routines and the transform and lighting (TnL) code working with the VFPU and I'm seeing very good results so far. The TnL code is around 2-3 times as fast running through the VFPU compared to the CPU. This gives around a 0.5-1.0fps speedup in the various roms I've been testing.
Unfortunately I have to put the clipping work on hold until the end of the week as I'm heading home for a few days to see my family.
-StrmnNrmn
Below are a few amusing 'outtakes' as StrmnNrmn was trying to get the VFPU TnL code working: