25 Jan
2002
25 Jan
'02
4:27 p.m.
In message: <20020125094218.C5968(a)apple.ukc.ac.uk>
"P.A.Osborne" <P.A.Osborne(a)ukc.ac.uk> writes:
: Also from what I did look at, I rapidly came to the conclusion that
: a "real" mode i386 port was the more straight forward as that keeps
: everything in 16 bits and saves a lot of mucking around.
Real as in 286 or as in 8088 :-). I've love to have a v7 port to my
DEC Rainbow 100, which isn't too IBM-PC-like other than the fact that
both have an 8088. There was a 8088 port of V7 (or maybe it was v6)
to the Rainbow marketed under the name of venix, but no one seems to
be able to find a distribution anymore.
: With any joy if the assembler level can be done correctly (device drivers
: aside) you could theoretically leave the bulk of the C source intact - which
: could possibly make it a purer port, assuming you can get gcc to compile
: K&R C - I havent tried yet.
gcc can compile K&R, but the language has evolved some since the v7
days. =*, =+, etc became *=, +=, etc. There are some other subtle
things too that I don't recall off the top of my head, but which vexed
the comp.lang.c news groups in the early 1980's.
Warner