> and jump to it After CPU setup, memory training, dealing with ACPI shit, loading (and executing! [1]) Option ROM, and others? There are things called "BIOS"

> and jump to it After CPU setup, memory training, dealing with ACPI shit, loading (and executing! [1]) Option ROM, and others? There are things called "BIOS" doing this before UEFI came into existence. [1] https://en.wikipedia.org/wiki/Option_ROM https://en.wikipedia.org/wiki/Option_ROM