ftp.nice.ch/pub/next/developer/languages/prolog/sbprolog.3.1.s.tar.gz#/sbprolog-3.1/_cmplib/cmplib

$compile
 

$getclauses
 

$opcode
 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.