Hello Michael,
> Uploaded to ftp://ftp.devoresoftware.com/downloads are the files emm386.zip
> (uncompressed executable) and emm386sr.zip (revised source code) for EMM386.
> and restores the VDS experimental option for those who
> can use it in its current skeletal condition.
if you didn't make VDS support significant more complete then it was
in the good old days of my code, I would disadvise to enable VDS by
default (no problem if it's an option)
reason:
there's a good couple of drivers (network cards mostly, but UDMA
similar) that has code similar to
....
address = logical address the user requested;
if (VDS enabled)
{
address = translateaddress(address, &error);
if (error != SUCCESS)
say 'goodby forever'
}
...
so IF VFS is enabled, you are basically required to support ALL VDS
functions in a decent way.
in my experience with that, it was much better to have no VDS - and
force network drivers into low memory,
then to have partial VDS, and failing network drivers (even if still
living in low memory).
UDMA may be similar, I simply didn't check if the required functions
are supported
> The SoundBlaster drivers hook
> EMM386's interrupt descriptor table, as well as its GDT (per previous
> release remarks) and redirect all INT 3's (debug interrupt) to a general
> protection fault with error code 1ah IF an application is running in
> virtual 8086 mode.
....
as usual I'm highly impressed what people with a good debugger and a
decent amount of time to KILL THESE BLOODY BUGS can find :))
> In addition, by popular request
OT: looks like bush will be reelected 'by popular request'
that doesn't make his politics better. (and this should end this
thread)
> Finally, I request that anyone who has a problem with any application
> crashing while HIMEM or EMM386 is loaded, where the problem occurs only
> when those drivers are loaded, let me know a link I can download the
> application for testing, or send it to me directly. If the application
> only requires a few minutes to setup and doesn't require a specific
> hardware setup not available, I will test it. Otherwise, I won't. Nor
> will I fill out nosy detailed web forms to get a download access
> code. Because I'm a grump.
I have no idea what a grump is - but I think I'm a grump, too.
> Microsoft Diagnostic msd.exe included with Win 3.1 distribution --
> memory-oriented options incompatible with kernel, possibly related to list
> of lists call and/or undocumented internals.
just fired up MSD from DOS 6.2 - and looked reasonable at first glance
what failed in what environment ?
tom
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