Mail Archives: djgpp/1994/04/15/17:29:37
A couple weeks ago, I raised the question of whether a program could tell
whether a shell-to-dos would overflow the swap disk. I received a few
suggestions, but haven't yet had time to follow up. But in addition to the
swap overflow problem, there's also the problem that paging everything out
takes a fair amount of time. I was wondering whether it would be possible to
stuff a small program into real-mode memory which loads command.com and
sneaks into a dos shell behind go32's back using _go32_dpmi_simulate_fcall().
Is there anything obviously wrong with this idea? The one thing that comes
to mind is that go32 reprograms the interrupt controllers; I don't understand
that part of go32 at all. (But then, there's lots of go32 I don't
understand.) I know this problem is supposed to go away with version 2.0,
but I don't know what time scale to expect for release of 2.0.
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