Re:Writing a BIOS bootloader for 64-bit mode from scratch
by xelxebar on Monday July 15, 2024 @02:15AM
(#40965654)
Oh, cool. I never knew that was possible. Showing my ignorance here, but assuming we're just trying to get to long mode, why would we tour through protected mode at all?
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Re:Writing a BIOS bootloader for 64-bit mode from scratch
by 5- on Wednesday July 17, 2024 @04:51AM
(#40983759)
i may be misremembering, but it's likely that intel/amd never documented this one-hop procedure, and it was discovered by the community through a combination of rules-lawyering and experimentation.