On Wed, Sep 2, 2015 at 1:37 AM, Mateusz Viste <mate...@viste.fr> wrote: > On 02/09/2015 04:43, Ralf Quint wrote: >> You are making a totally wrong assumptionn that 16bit software means you >> are limited to 640KB of memory. > > Absolutely not - my assumption is that running on 8086/80186 means I am > limited to 640KB (or let's say < 1M). Hence for software with higher > memory requirements there is little or no advantage of being 16bit.
And getting around the 640K limit was the reason for HIMEM,SYS, EMS, XMS, and playing games with the A20 address line. I routinely used the capability when I *was* running on an 8086. My old XT clone had an expansion card with a MB of additional RAM, split between a ramdisk, disk cache, and EMS memory for apps that could use it. This all started back *before* the 286 and later 386 CPUs became common. If you wish to restrict yourself to 640K, feel free, but it's a choice, not a requirement. > Mateusz ______ Dennis https://plus.google.com/u/0/105128793974319004519 ------------------------------------------------------------------------------ Monitor Your Dynamic Infrastructure at Any Scale With Datadog! Get real-time metrics from all of your servers, apps and tools in one place. SourceForge users - Click here to start your Free Trial of Datadog now! http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
