FrenkelS

The latest release added the command line arguments `-noems` and `-noxms` for disabling EMS and XMS memory. Keen 4 doesn't use extended memory, but it can use UMB which is...

In the mean time, there's [EXMS86 (XMS for your 8086)](https://www.vogons.org/viewtopic.php?t=107428). Use it in combination with `-noems`.

Vanilla Doom doesn't have AdLib sound effects. I guess I could use Wolfenstein 3D's AdLib sound effects.

What about Audio CD music like in [FastDoom](https://github.com/viti95/FastDoom/blob/master/FASTDOOM/ns_cd.c) and [Quake](https://github.com/id-Software/Quake/blob/master/WinQuake/cd_audio.c)?

I did upload the wrong Textmode version zip. That's fixed now. `D286MY.EXE -nosfx` works on my machine.

ViTi95, the creator of FastDoom, [has this to say](https://www.vogons.org/viewtopic.php?p=1313912#p1313912): "The FPU doesn't act as a true parallel coprocessor in 286, 386 and 486 systems, but it does on the 8088/8086...

Trixter [has this to say](https://trixter.oldskool.org/2013/01/10/optimizing-for-the-8088-and-8086-cpu-part-1/): "It’s Called A Coprocessor For A Reason If your project is going to work with floating point and needs both speed and accuracy, read this...

I don't think that's possible. Doom8088 needs about 512 KB of memory that can be accessed immediately/without bank switching. Does CC65 target a platform with a 20-bit or larger address...