Mail Archives: djgpp/2000/12/24/18:21:05
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From: "Damian Yerrick" <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
> On Sun, 24 Dec 2000 16:11:47 -0300, "Norberto Alfredo Bensa"
> <nbensa AT hotmail DOT com> wrote:
>
> >Is there any global variable or function which I could use to know if I'm
> >running under Windows or plain DOS?
>
> There is an interrupt to find this; look in Ralf Brown's Interrupt
> List.
> http://www.ctyme.com/rbrown.htm
>
I was using Ralf Brown's Interrupt List for a description of Int21/AX=7302
to see what's wrong. Thanks anyway.
Actually there's no need to know that. If Int21/AX=7303 fails, then I can
use Int21/AX=7302
Now I've been running some test using two systems and this is what I found:
Both system are running the same Windows version (4.10.1998)
As you can see, in both systems TEST.EXE reports 1 more cluster when running
on plain DOS, but system A is reporting 2 free clusters left than CHKDSK (?)
If you want to check this, the source code for TEST.EXE is attached
(zipped). Compile with "gcc -DTEST -o test.exe statfs.c"
(Please note, 'statfs.c' is a modified version of
%DJDIR%/src/libc/compat/sys/vfs/statfs.c from CVS)
Best regards,
Norberto
--------------System A (4096 byte per cluster)
DOS/CHKDSK
2012211 total clusters
322370 clusters free
DOS/TEST.EXE
2012212 total clusters
322368 clusters free
Windows/CHKDSK
2012211 total clusters
322370 clusters free
Windows/TEST.EXE
2012211 total clusters
322370 clusters free
--------------System B (8192 bytes per cluster)
DOS/CHKDSK
2058319 total clusters
703079 clusters free
DOS/TEST.EXE
2058320 total clustes
703079 clusters free
Windows/CHKDSK
2058319 total clusters
703012 clusters free
Windows/TEST.EXE
2058319 total clusters
703012 clusters free
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