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A comment on Let’s write a Kernel with keyboard and screen support (2014). Parent comment

Re:Let’s write a Kernel with keyboard and screen support (2014) by jjoonathan on Wednesday September 19, 2018 @11:50AM (#18025078)
Does UEFI start the same way as BIOS (firmware on LPC bus, PC starts at 0xFFFFFFF0)? Or is there a different top level mechanism?

My understanding was that the CPU still starts in 16 bit real mode (with an evil hack to sign-extend IP) but that by the time UEFI hands off to code on a hard drive it is in long mode.

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Re:Let’s write a Kernel with keyboard and screen support (2014) by zaarn on Wednesday September 19, 2018 @12:30PM (#18025405)
UEFI starts the same way but yeah, it hands off 64bit (or 32bit if you have a 32bit UEFI).
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