Hello,
I'm using DosBox for testing some protected-mode apps and just discovered that pages marked as readonly can be written to from ring 3 protected mode, which on a real cpu is not possible.
Is this by design or is this a bug? I can imagine that some dos-extender apps may rely on getting page faults if someone tries to write such pages.
Regards
Japheth
all cores?
1+1=10
dosbox doesn't care about page protection (only for the
first access to a non-present page), doesn't care about
segment limits etc. all because those would greatly
reduce the speed.
> all because those would greatly reduce the speed.
that's understandable, but at least optionally (possibly not at runtime if it is a speed issue, but at compiletime) it would be good to have these things included.
That'd require a lot of changes, so i doubt anybody will do this,
yet maybe somebody has a lot of time...
It's a shame the PC is such a complicated machine to emulate fully...
BOCHS does a good job, so if something like that is really needed
there's always the bochs- and others option.
