You'd just call printf from assembly by knowing the ABI by heart.

Well I could certainly assemble the string buffer. And if I can run dosbox, I can output to the screen buffer at 0xB800.

I’m not objecting to modern languages, I’m just saying that using them fails the “can write fizzbuzz with no help” test to only a slightly lesser degree than using AI tools. They’re a complex compile- and runtime environment that most developers don’t truly understand.