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 Eric ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
