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From: ftpam1@acad3.fai.alaska.edu (MUNTS PHILLIP A)
Newsgroups: comp.lang.pascal
Subject: Re: Writing ROMable code using Turbo Pascal (Also Turbo C and Assemb)
Keywords: IBM PC
Message-ID: <1990Sep15.054458.20518@hayes.fai.alaska.edu>
Date: 15 Sep 90 05:44:58 GMT
References: <11972@chaph.usc.edu>
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In article <11972@chaph.usc.edu>, mevawall@girtab.usc.edu (Shehzad Mevawalla) writes...
>Is it possible to write ROMable code using Turbo Pascal, Turbo C and Turbo
>Assembler? That is how can I prevent DOS and BIOS system calls in the 
>executables?

     It has been my (small) experience that C compilers have no OS dependance
built into the compiler.  If you rewrite the library modules, and especially
the run-time startup routine, you are set.  (I haven't tried Turbo C.)

     On the other hand, Turbo Pascal has OS calls liberally strewn throughout
the run-time support, and in fact generated by the compiler in-line, as well.
This makes it difficult to use Turbo Pascal on a "bare machine."

     One possibility which I have read about but not actually tried, is a
minimal DOS emulation package.  One such package costs $495 and includes
licenses for 5 or 10 units.  It can provide as much DOS emulation as you need
(from simple console I/O to files) and whatever you don't need you can trim off.
It's called ROM-DOS or something like that; if anybody is interested I can dig
through the literature pile and find the details.

Philip Munts N7AHL
NRA Extremist, etc.
University of Alaska, Fairbanks