pjd@mandrill (dr. funk) (03/24/88)
Don't pass XPRO by just because it is $39.95 versus the $199 price of MProlog. I have used both and XPRO is a genuinely capable Prolog. XPRO also has access to GEM/VDI/TOS. MProlog supports Eagle (3D turtle) graphics, but NO mouse input device! Both are interpreted. (Wish I had benchmark figures for a better comparison.)