Re: Forth and Prolog

From: flapper (not_at_u.v.w.xINVALID)
Date: 05/11/04 

Date: Tue, 11 May 2004 20:20:21 GMT

Nikhil Barthwal wrote:
> PDC has already put all it's compilers in public domain for non-commercial
> uses as far as I know.

  This is news to me. Where can they be downloaded?

But I would be really interested to know if they or
> Borland have put the old Turbo Prolog compiler for DOS for commercial uses
> also.
>
> Nikhil
>

   Do you mean you would be interested to know if PDC or Borland still
sells the old Turbo Prolog DOS compiler?

   I called Borland a couple of years ago to ask them about this and
someone there told me that under the terms of the agreement that had
given them the right to market PDC Prolog under the name Borland/Turbo
Prolog, that right was coterminus with the agreement. INAL, so I can't
swear my understanding of what was being said to me is correct and I
don't know if that situation has changed. I have the impression that PDC
does not intend to re-release any of their old DOS products but I
haven't asked them about it.

  Bill

> Andreas Kochenburger <kochenburger@gmx.de> wrote in message news:<a7gu90hsgf10aesesg6oill9in0iq9qkce@4ax.com>...
>
>>The posting below may perhaps interest someone here too. However the
>>compiler was old Turbo Prolog.
>>
>>BTW I read that Borland graciously put all their old DOS-based Turbo
>>compilers into public domain. Is this also true for Turbo Prolog?
>>AFAIK it had been a predecessor of PDC and Visual Prolog but found
>>nothing in this respect on PDC's website. If policies and license
>>legalities allow, it would be nice from PDC if they could provide a
>>download of this archaic but still fascinating small and efficient
>>compiler.
>>
>>fox@ultratechnology.com (Jeff Fox) wrote in message
>>news:<4fbeeb5a.0405021646.6601bcdf@posting.google.com>...
>>
>>>Now I know that TCOM when targeting for DOS produces a .COM
>>>of ~300 bytes. I wonder if any other optimizing target
>>>compiles produce smaller code, closer to the <30 bytes
>>>required for a .COM using DOS function call. Does anyone
>>>have numbers smaller than 300?
>>
>>That question spurned my "sportive ambition" and I dug out an
>>old Prolog-based Forth compiler experiment of mine. It compiles the
>>Forth
>>code : MAIN ." Hello World" ; to a COM-file of just 62 bytes.
>>
>>For those who might like to play with it here is the link:
>>http://home.arcor.de/a.s.kochenburger/downloads/AFC.ZIP
>>FYI I put a small readme.txt into the zip package. Enjoy!
>>
>>Anyhow I am interested to hear about any other cobinations
>>of Forth with Prolog.
>>
>>Andreas

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