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Mail Archives: djgpp/1994/08/30/23:01:20

Date: Tue, 30 Aug 94 17:58:52 MDT
From: ken%@@[192.108.20.250] (Ken Graham)
Subject: EMM386 and TSRs
Apparently-To: djgpp-announce AT sun DOT soe DOT clarkson DOT edu

Kim,
There is a world of difference between a device driver and a TSR. There is
also a world of difference between a consumer of memory services and a
memory manager. EMM386 (QEMM386 and MAX386 and NetRoom and...) are all
Memory Manager Device Drivers.They are the equivalent of root in your
PC's memory. They own all of the memory and dole it out when someone asks
for it nicely (i.e. via an API, like DPMI or VCPI or the old INT15H method).

There is no reason you could not create a real mode shell around a set of
access functions which would "wake up" and put your system into protect mode
and run your program. The guts of it are in the GO32 code.

This is not to say that this would be an easy task, but when you're done
could you upload it for the rest of us...|8->

ken



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