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From: tapia@uiucdcs.UUCP
Newsgroups: net.micro.pc
Subject: Re: Modula II query - (nf)
Message-ID: <24700043@uiucdcs.UUCP>
Date: Sun, 22-Apr-84 20:04:00 EST
Article-I.D.: uiucdcs.24700043
Posted: Sun Apr 22 20:04:00 1984
Date-Received: Tue, 24-Apr-84 05:29:35 EST
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Nf-From: uiucdcs!tapia    Apr 22 19:04:00 1984

#R:wdl1:-19200:uiucdcs:24700043:000:1508
uiucdcs!tapia    Apr 22 19:04:00 1984



	There are 3 companies that sell Modula-2 compilers.
	1) Logitech, a subsidiary of a European firm.
	   Palo Alto, CA (415)326-3885, Approx. price $500
	2) Volition Systems
	   P.O. Box 1236
	   Del Mar, CA 92014  (619)481-2286 (no idead about price)
	3) Diser Inc. (no additional info about this company)
	For references you might look in:
	BYTE December 83 pp.59-64, August pp. 324-327.

	I have learned about these firms because I'm trying to transport
	a Modula-2 compiler that runs on Lilith (the original Modula machine
	designed and built by N. Wirth's group) to an IMB PC. I suspect that
	Logitech did something similar already, i.e., they took the Lilith
	compiler that runs on a PDP-11 (on an M-code interpreter) and modified
	its forth pass to generate 8086 code.
	At the moment I am working with a version that runs on Unix in VAX
	compatibilty mode. So far I have had no problems with it. The
	documentation I have, however, is poor. This version, which is not
	very different from the one above since it was writen by the same
	people, has the capability to check for subrange and array run-time
	errors. I have no comments to make on its speed, except for the fact
	that it isn't any slower than any other software running on our system.
	On arrays > 64K, I think, the problem is not a language problem
	(Modula, or any other) but a limitation of the 8086 chip, i.e., you
	have to work with 64K segments.

				Cris Tapia
				Univ. of Illinois, Champaign-Urbana
				Dept. of Computer Science