Here is the compatible version with assembly+interpreter code for it.
DSP.cpp / DSPIntMultiplier.cpp have the nice but unrelated LLE hacks from earlier. I changed the mul hack slightly.
Edit: Newer version posted below.
DSP.cpp / DSPIntMultiplier.cpp have the nice but unrelated LLE hacks from earlier. I changed the mul hack slightly.
Edit: Newer version posted below.