On Mon, Mar 16, 2015 at 7:34 PM, dmccunney <dennis.mccun...@gmail.com> wrote:
> On Mon, Mar 16, 2015 at 7:51 PM, Rugxulo <rugx...@gmail.com> wrote:
>> No, many compilers make it totally transparent to the end user. So you
>> don't even have to write any non-portable code (usually). And this
>> goes even beyond obvious "32-bit DPMI" DJGPP-based ones (GCC, GPC,
>> FPC, FBC).
> They do now.  They did not then.

DJGPP started in 1989. It's not new. And it wasn't the only one.

> Since you *have* Linux, BSD, and even Windows, which support all that
> out of the box, why should anyone *bother*?

The whole point of a "free" "DOS" was to be a free/libre alternative
that is binary compatible on similar hardware! None of those OSes do

There are *many* OSes out there, often touting "legacy free". But even
they have to start somewhere. Most people don't create their own cpu
or write their own compiler. Heck, they port third-party apps over and
use similar toolsets and formats that are already available. I mean,
some of them even import drivers verbatim! Reuse is the name of the
game. It just takes too much work to throw everything away.

Sure, some people think it's "better" to throw things away. Some
things are of questionable benefit. But it's certainly not always
true. Sometimes you have to live with what you already have. Sometimes
the cost of recreating something from scratch is too much.

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