I'm working on a 40MHz PC AT clone (a DTK DATA 1000), and it has 640K conventional RAM and 16MB of extended. It has no shadow RAM. I was down to around 480K after installing a lot of apps in DOS, so I thought I'd give 386MAX R7.2 a whirl to see what it could do. It did pretty well, freeing up enough to make about 590K or so available after loading a fairly packed system (it looks like it recovered some of the monochrome adapter area). One thing I didn't expect is that in Windows 3.1 on the same machine there are not 386MAX DOS icons for running either a DOS full screen session or a DOS windowed session. Each session shows 641K available for running DOS programs - nice! I was wondering two things 1) why is the total available ram 641K vs 640K? and 2) Where is getting the memory? Is it virtualizing the extended memory in those sessions?
Regards,
Mike
Regards,
Mike