Thanks for the tip!! I've read as well in the thread (or some other thread) that JEMM386 already implements VCPI (I wasn't aware of that).
Aitor On Wed, 21 Aug 2024 at 21:41, Ralf Quint via Freedos-devel < freedos-devel@lists.sourceforge.net> wrote: > On 8/16/2024 1:43 AM, Steve Nickolas via Freedos-devel wrote: > > Or maybe to implement the VCPI? > >> > >> Aitor > >> > > > > Is the EMM386 in MS-DOS 4.x new enough for that? > I haven't specifically looked for that, but given that the source code > released is likely an early version of MS-DOS 4.0, it could be that this > is not included. > At the company that I worked at in 1990 (1985 through 1994 overall), we > had a version of a VCPI compatible CEMM (Compaq's EMS memory manager) > provided for use with Compaq/MS-DOS 3.31, and also in early versions of > QEMM and 386Max. > Just looked this actually up, and VCPI was first included by the > internal memory manager of what would become Windows 3.0 (Windows386) > and was part of EMM386.EXE (not .SYS!) released with DOS 5.0. > > The "secret sauce" to include VPCI might be in the GEMMIS (Global EMM > Import Specification) documentation and that wasn't publicly available > back then (Novell (in)famously didn't get a copy of the specs)... > > > Ralf > > > > > _______________________________________________ > Freedos-devel mailing list > Freedos-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-devel >
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