Emulation visits instructions as they are executed. Static recompilation will (at translation time) visit instructions that can be discovered, even if they never run.
eg:
if (rand64() == 0x123456789abcdef0ull)
baz = bar;
an emulator will likely never visit that assignment. A static recompiler will translate it.
Hm. What is the utility of this distinction?
Anyway, qemu certainly seems like it would fall under your definition of "emulator" despite obviously dynamically recompiling.
which is why i said "static recompiler" and not just "recompiler"
distinction is that an emulator is much simpler, while a static recompiler is a lot more work and thus ~30% more cool
Ah. I admit I've only ever made dynamic recompilers