protected-mode

Protected mode concepts: selectors, privilege levels, and segment descriptors.

Programming GDT & IDT Selectors for Protected-Mode Kernel (Bootloader)

GDT and IDT entries for protected-mode kernels: how to read the code-segment selector, reuse or replace the bootloader GDT, and key best practices. Tips.

#gdt
#idt
#protected-mode
#kernel
#bootloader

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12/28/2025, 10:22 AM