Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!decvax!harpo!seismo!hao!hplabs!sri-unix!Pereira@SRI-AI From: Pereira@SRI-AI@sri-unix.UUCP Newsgroups: net.lang.prolog Subject: Prolog-20 And C-Prolog Queries Message-ID: <3331@sri-arpa.UUCP> Date: Wed, 20-Jul-83 22:10:57 EDT Article-I.D.: sri-arpa.3331 Posted: Wed Jul 20 22:10:57 1983 Date-Received: Sat, 23-Jul-83 18:49:21 EDT Lines: 18 The native mode DEC-20 Prolog can read files from any directory -- just use the file name (in quotes if necessary). In the latest version, you can exit to the EXEC (using ^Z) or the evaluable predicate 'halt', PUSH, do what you want, POP and then CONtinue. Actually, I don't use this because I rely on a multi-fork EXEC from Yale called MUF, which handles process switching for me. C-Prolog is distributed with sources. You can add your own C code, but the mechanism to do this is not documented. C-Prolog has been successfully ported to MC68000-based machines, such as the Sun. I'm waiting for more details of such ports. By the way, there is a good chance that both DEC-20 Prolog and C-Prolog will soon become available with support on a commercial basis. This is as much as I can say, any more would be advertisement given my interest in both systems. -- Fernando