Today I learned (!) What?! A .com file can have a full 64k for every segment! Amazing! All of my little experiments are .com files and I dread having to go to .exe at any point so this is great news.

The only question I have though is... How? I see DOS initialize all of the segment registers to the same address. Is this something DOS specific like special bits in _start or something? Or something I do myself?

I guess I could imagine my one mega .asm file that includes all my resources and then in _start I just set my segment registers to "further down in the file" using labels. But yeah, I'm a newb at this but love the simplicity of graphics programming like this, tips very much appreciated :)