Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!feeds.news.ox.ac.uk!news.ox.ac.uk!news.stack.nl!.POSTED!not-for-mail From: Marco van de Voort Newsgroups: comp.lang.pascal.borland Subject: Re: diffrence between free pascal and tmt pascal Followup-To: comp.lang.pascal.misc Date: Sat, 8 Feb 2014 10:52:23 +0000 (UTC) Organization: Stack Usenet News Service Lines: 30 Message-ID: References: NNTP-Posting-Host: toad.stack.nl Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: mud.stack.nl 1391856743 91725 2001:610:1108:5010::135 (8 Feb 2014 10:52:23 GMT) X-Complaints-To: abuse@stack.nl NNTP-Posting-Date: Sat, 8 Feb 2014 10:52:23 +0000 (UTC) User-Agent: slrn/0.9.9p1 (FreeBSD) Xref: csiph.com comp.lang.pascal.borland:173 On 2014-02-07, Patrick D. Rockwell wrote: (neither FPC or TMT are ontopic in this group, f-up set to .misc) > Does anyone know the difference between free Pascal and tmt Pascal ? Yes. One is commercial, the other not. > I've heard that tmt Pascal only writes protected mode programs, and allows > overlays. Free Pascal doesn't have overlays, but can it write real mode > programs? Only the development version supports real mode (and only tiny and small memory models, it does allow .COMs though). And only by means of crosscompilation from non-dos at the moment. There are no releases of that yet, though there are some snapshots. Ask on the ml for more info. > Also, did Borland Pascal have the object code for its overlay unit? If so, > couldn't I just compile it into a tpu unit under free Pascal so that I can > have overlays in free Pascal? Maybe you can recycle the ideas, but outright reuse, unlikely. Moreover, it is all academical, since overlays usually point towards big programs, and with the 64k data limit of current memory models that is not very practical with FPC atm. Why don't you simply use 32-bit PM mode?