B-Prolog is a Prolog system with extensions for programming concurrency, constraints, and interactive graphics. The system is based on a significantly refined WAM, called ATOAM, that facilitates software emulation.

In addition to an ATOAM emulator with a garbage collector written in C, the system consists of a compiler and an interpreter written in Prolog, and a rich library of built-in predicates written in C and Prolog. B-Prolog follows the standard of Prolog, but also enjoys several features that are not available in traditional Prolog systems.

B-Prolog is made available (term-limited) for evaluation and learning purposes only. Please purchase a license for any other purposes. (Academic, personal, and non-commercial site licenses are free.)

• Support UTF-8.
• New built-ins: getpid/1, bp_current_resource/1.
• Bug fixes and improvements:
• Planner
• between/3.
• subtract/3.
• Multiplication constraint