> mostly just reading assembly, not writing it Not always the case. You're not writing it all the time but you still have to write it. For example the trampoli

> mostly just reading assembly, not writing it Not always the case. You're not writing it all the time but you still have to write it. For example the trampoline I use to jump from the boot stage to the kernel entry point is common-mapped between the two memory spaces and performs the switch inside of it, and then calls the kernel. That's all in assembly.