Date: Tue, 24 Sep 1996 20:13:14 -0700 (PDT) From: Jonathan Mini <j_mini@efn.org> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: emulation@freebsd.org, prb@bsdi.com Subject: Re: New DOScmd snapshot available Message-ID: <Pine.SUN.3.95.960924200930.21603C-100000@garcia.efn.org> In-Reply-To: <199609250308.MAA07157@genesis.atrad.adelaide.edu.au>
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On Wed, 25 Sep 1996, Michael Smith wrote:
> Jonathan Mini stands accused of saying:
> >
> > > If you're a DOS expert with some time and experience to spare, a
> > > critical eye over the memory and exec routines would be very helpful.
> > > I do not profess to understand these, and I suspect that there may be
> > > some lurking problems.
> >
> > Well, that's what *I'm* here for....
>
> And grateful I am about it 8) So where are your rude comments? 8) 8) 8)
Hey...hey... I make them so nicely you don't notice. ;) At least let me
d/l the code first! Jeeeze. And I sort of have this school thing... pesky
I know, but....
> > Ummmm... Guys? Running MSD and/or Norton SysInfo will probably be
> > impossible for the end of all time.. the reason behind this is that Norton
> > SysInfo messes with a few hardware interrupts and/or ports that change
> > system timings so that it can get accurate benchmarks. (In fact, in the
> > case of Norton Sysinfo, I beleive it sets the PIC timers to what FreeBSD
> > uses for it's profiler, although I couldn't swear on it.)
>
> We don't let DOS programs touch the hardware. The aim is to emulate it
> well enough that these programs will run, even if they produce bogus
> results. The fact that they fail completely at the moment is clear
> evidence that we're not doing well enough yet.
I understand this... the thing is is that it's hard to trap everything
"important" without trapping everything. If you see what I mean...
.... That is "trapping" is no big deal. That's the whole POINT behind
v86 tasks. What is hard is simulating the hrdware you're trapping. If you
get good enough IRQ-emulating code working to make programs such as Norton
sysInfo work, I'll be impressed. (That should put you about > < that close
to being able to run a REAL MS version of windows in doscmd. Perhaps only
"standard mode" but still.)
> > Jon Mini, j_mini@efn.org, mini@4j.lane.edu
> ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[
Jon Mini, j_mini@efn.org, mini@4j.lane.edu
GAMMA Development Team
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"I think I can, I think I can, I think I can...."
little.blue.engine:Reality Protection Fault. (core dumped)
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