Hi,
Alain escribió:
tom ehlert escreveu:
IMO, scince FS, GS, and the high parts of EAX,... aren't used by MSDOS
as well, drivers can get away when they destroy these resisters,
so it's a good idea to save them as well.
This gets complicated when Kernel is 386 optimized. MS-DOS never
modified this because it is 16-bit. It could be argued that if a kernel
is to be compatible it cannot modify them either.
Now the other way round: can the kernel be sensistive to 386 registers
being modified by drivers? IMHO not, because the original one is not and
hence some drivers will stop working.
Then I believe that it is the kernel resposibility to preserve it's
registers.
Well, I disagree. As it was posted, drivers are to preserve registers.
Anyway, can't this be the cause why EMM386 + 386-optimised kernel are
not working together?
Aitor
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
Freedos-devel mailing list
Freedos-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freedos-devel
