On Sun, 28 Jun 2015 16:50:25 -0400, Mateusz Viste <mate...@viste.fr> wrote:
> On 28/06/2015 20:03, Rugxulo wrote: >> "Below 16M"? You mean for DMA or the like? > > I have honestly no idea what the 'low-level' implications are. If > someone asked me 2 days ago, I'd say that's impossible, since an > application only requests XMS "handles" from the XMS driver, and > performs all moves from/to XMS by calling the XMS driver over a small > 64K window of data... Hence the application is not aware at all where > physically the memory it gets is located at. DOOM is a 32-bit program, it doesn't use 64KB segments. It doesn't even need an XMS driver installed to run. BTW, I tested DOOM 1.9 on my FreeDOS install and got similar results. My system is a Pentium III 600e, 192MB of RAM, with an ISA Sound Blaster 16. If I have a large (40MB) UIDE disk cache active then the system halts upon exiting the game. Under Windows 98 DOS, it crashes with a GPF if I have a 32MB SMARTDRV cache. It does seem like a bug in the old DOS4GW. ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
