[TUHS] Re: Porting Unix v6 to i386

[M. Warner Losh]

In message: <200201301952.g0UJq0E39966 at ducky.net>
            Mike Haertel <mike at ducky.net> writes:
: >Anyhow I have started gathering the tools (Watcom C compiler now
: >open source and free!  www.openwatcom.org)
: 
: They have announced that it *will be* open source and free,
: but so far as far as I can tell there is nothing available
: at openwatcom.org except a binary-only patch to upgrade 
: the last commercial version 11 to 11.0c.
: 
: So, it isn't yet.  Right now it's just vaporware.

The only compiler I know of that deals properly with generating 16-bit
x86 code is bcc, which the Elks folks use to build their kernel.  This
is Bruce Evan's compiler with support for prototypes bolted on, iirc.

	http://www.cix.co.uk/~mayday/

It is a tad Linux centric, but I was able to get it to build with only
a few tweaks on FreeBSD.  It is sufficient to build the elks tree, but
I've not tried it on anything else.

Warner