Real Mode: Difference between revisions
→Switching from Protected Mode to Real Mode
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#* Turn off maskable interrupts using CLI.
#* Disable [[NMI]] (optional).
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# Turn off [[Paging|paging]]:
#* Transfer control to a 1:1 page.
#* Ensure that the [[GDT]] and [[IDT]] are in a 1:1 page.
#* Clear the PG-flag in the zeroth control register.
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