Hello roconnor, Monday, October 9, 2006, 3:41:00 AM, you wrote: > JMP_((W_)&Main_zdwshift_info); > My question is, why the discrepency? because it was not inlined at all? try to add INLINE pragmas: {-# INLINE shift #-} -- Best regards, Bulat mailto:Bulat.Ziganshin at gmail.com