Vanilla qemu won't help you much, you need to compile a customized version with kjliew's qemu-3dfx, see here: https://www.vogons.org/viewtopic.php?f=24&t=60950 The current version works on a Linux host but I don't know what the situation is with mingw. I know that robertmo has successfully run …

Trying once more: What you describe sounds a lot like a corrupt BIOS. Do you have any way of flashing the EEPROM outside of the board? You have multiple PCs in your signature. Why not use one of those to perform a hot flash? ^ This. Looks like there have been at least *some* memory-related issues, …

I made a comparison of some DOS-based C compilers: https://github.com/leikareipa/dccb. The code can be compiled using a bunch of compilers, and some sample performance results are included. I'd use the Digital Mars C/C++ compiler, but the Microsoft C/C++ one is pretty good too. As far as I know, …

As they say..."it depends" Maybe you could provide some info on what kind of coding you are planning to do? Any specific hardware target perhaps? Any memory constrictions? DOS extender needed? Libraries you care about? And so on... If you care about portability to gcc, I guess DJGPP would then be a …

Generally I'm not much of gamer nowadays, but this one, I do like: Cataclysm: Dark Days Ahead Very appropriate setting, for these pandemic times. NetHack & DF veterans, go ahead check it out if you haven't already! Everyone else: Prepare for a *steep* learning curve... I think you can also play CDDA …