Prolog sources for the compiler and builtins are in directory src.
The directory doc contains ASCII, Latex, PostScript and HTML versions of BinProlog documentation and a makefile to regenerate it.
The directories pl2c and dynpl2c contain various project (*.pro) files and a makefile for generating a standalone applications through compilation to C.
The directory c_inter contains BinProlog's C-interface and examples of embedding of BinProlog in C applications.
The directory TCL contains a bidirectional pipe based BinProlog to Tcl/Tk interface.
The directory JAVA_BP contains a Prolog dynamic library callable from a Java wrapper class and a makefile to generate it (useful for owners of source license).
The directory LogiMOO contains the LogiMOO virtual world, ported to BinProlog 5.75's new Linda and socket handling INTERNET programming tools.
The directory multi contains Koen De Bosschere's a blackboard based distributed programming extension to BinProlog and a BinProlog executable for Solaris 2.x which integrates them (mbp.*) used among other applications for older versions of LogiMOO.
The directory cparser contains Koen De Bosschere's ISO Prolog parser (written in C) and a BinProlog executable for Solaris 2.x based on the parser (cbp.*).