🚀 go-pugleaf

>>>>> On Tue, 13 Oct 1992 03:17:03 GMT, draper@ais.org (Patrick Draper) said:
PD> In article <9210061742.AA05172@deepthought.cs.utexas.edu> STDN%MARIST@VM.MARIST.EDU (Dan Newcombe) writes:
>What I want to do is this:
>  Generate pure 80x86 code from a compiler that could be used without
>DOS.  I don't want stuff like INT 21 and all of those functions.

PD> You'll can do it with Borland C++, and I'm sure quite a few others. The two
PD> things you'll want to watch for is 1) the runtime libary and 2) the startup
PD> code. Borland includes the startup code for it's compiler, which you can
PD> modify and reassemble. The Borland 3.1 compiler also has source code for the
PD> runtime library which you can analyze to determine what functions don't use
PD> DOS.
PD> Straight C won't generate DOS, or BIOS calls. If you throw away the standard
PD> runtime library, you are reduced to writing your own functions. It's a lot
PD> of work, but it can be done. As a reference, I recommend P.J. Plaugher's

Seems would need compiler source code first and Borland surely don't
publish it (the startup code is useful if want to produce program which
can run in environment other than DOS, but it doesn't help run compiler
- must compile compiler first).
There is a GNU C compiler available with full source, so it can be used
for this purpose (to have compiler source, compile it and run without
DOS). But it is still a lot of work, what's about files without DOS ?
What way use a compiler without files ?