Hi Robert,

I remember some old "driver in protected mode" and cloaking
related stuff from the old days but only few drivers did
support it afair? So I would suggest that we just take our
new open source drivers and turn those which really need
a lot of RAM into JLM modules for JEMM386. The interface
is a bit like DLL and DPMI, you can for example hook any
DOS interrupt and let the handler reside outside the first
megabyte :-). Typical candidates would be DOSLFN, SHSUCDX,
SHARE, DISPLAY, but the latter is a bit tricky as it does
have to show the font data in DOS-accessible RAM sometimes.

DOS memory usage now: biggest cdrom and harddisk caches up to
29+17 kB, DOSLFN 13 kB, DISPLAY 12 kB, SHARE 9 kB, SHSUCDX 6 kB

Note that you typically have much smaller caches than the max
possible size and that you can use Jack's UIDE driver with UDMA
and SATA harddisk and cdrom support and some caching functions
which probably uses somewhat less DOS RAM.

> > It's possible under freedos 1.0 put the drivers in XMS insted UMB?
> > Can be used cloaking.exe , and in wich modality?

> FloX has a short note about cloaking on FreeDOS at
> www.unet.univie.ac.at/~a0503736/php/drdoswiki/index.php?n=Main.DPMS


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