Oh wow, great read! I was an amiga demo scene coder down here in Australia, spent many long nights in asm-one :)
I had no idea there were tools for pre-calc lookup tables back then! Instead I just generated my own from code as I assumed everyone else was :D
Using pre-calc sine tables freed up so many clock cycles.
Big shout to all the sceners on here! I really do miss coding 68k asm sigh :)