I meant that they could be played basically on a 8086. If operand size prefixes would be used, then that would not be possible anymore, and one would have to create 32bit registers and operations etc.

This pretty much answers my original question, thx! Can that list be found somewhere? ...The only question remains is whether any of these old games that run in real mode, but might use an extender (xms, ems, whatever) are all 16bit, or whether there are 32 bit real mode games out there. thx anton

Wolf3D just used real mode with XMS/EMS like many games until around 1993 when 386 protected mode and dos extenders took over. So it is true that there are many real mode games out there, that only rely on protected mode to emulate xms/ems (i.e. map high mem into the first 1mb)? ...I wonder whether …

But with dpmi, doesn't it mean that the program doesn't actually use any protected mode features of the cpu, but only makes calls to the dpmi spec to change segment descriptors etc. So in effect one would only need to emulate a real mode, with some very limited segment related stuff, and add all …

Hi, I've been reading up on real/protected mode and 16/32 bit modes under dos. It appears most dos games should run in real mode, but Dos Box actually seems to support protected modes (for 'protected mode games'). So I'm wondering how many/which dos games run in protected mode, and which/how many …