re: emm386 in C?

Hi, thanks for your hint. So the code of tutorial 15 is GPLed?
Should be quite easy to add a few drivers to it - I think the
UMB part of FD emm386 is already mostly C, so you could check
how it fits into the tutorial 15 v86 monitor. I know that VCPI
is not a big API, but I think it is tricky to add the switch to
and from protected mode functions to an existing V86 monitor.
Did you already investigate that issue?
For inspiration on how to do mixed 4/16 k block size allocation
for EMS 3.2, 4.0 and VCPI, have a look at the impressive but
alas not working VMM386 v86 monitor (includes ems 4.0 and vcpi,
but the v86 monitor itself is unstable. The whole thing is
written in tasm or masm assembly language, quite interesting
to read the source but as I use nasm...).

Eric

Imre wrote:
... that http://members.tripod.com/protected_mode/alexfru/pmtuts.html
contains interesting things, for example a working v86 monitor in
tutorial 15. And that Imre is now an VCPI expert, too :-).
The things found by Imre are GPLed, Turbo C with little nasm ASM, and
seem to be a good foundation for a new FD emm386 (because Turbo C and
nasm are free, and the small assembly language part makes maintainance
of the big C language part more inviting)...

(this was no quote ;-))

PS: I have thouroughly read vmm386 (there is a copy somewhere on
http://www.coli.uni-sb.de/~eric/stuff/software/ ) and lots of EMS and
VCPI specs, and for reference, you can even download my feeble efforts
with writing emm386 like stuff (pmlib and emmsys) on my site as well.
Ah. The directories were "specials" and "by-others".
I have also some nice docs on the topic copied to
http://www.coli.uni-sb.de/~eric/stuff/emm386/ and a very
strong opinion about which parts of which API are most
important to get started with.

So in short: Cool project, have fun with the other stuff
from my site and feel free to ask me things. However, I
am too busy to contribute actual fresh code in the following
weeks or even months. Good luck anyway!

Eric