I finally found the NASM assembler.
I had heard that name before, many times, but somehow never looked into it. Weird. 🤨🤔
This is the kind of program I was looking for.
- It is free software. Especially in the DOS ecosystem, free/libre software is a very scarce resource.
- It’s a small command line program, not a huge behemoth.
- Documentation appears to be well written.
- It can even cross-compile DOS binaries from Linux.