Sure! Here's a brief overview of the steps to prepare for and switch to protected mode:

1. Load the GDT (Global Descriptor Table) with segments for code, data, stack, etc. and set GDTR register to the address of the GDT.

2. Load the IDT (Interrupt Descriptor Table) with interrupt and exception handlers and set IDTR register to the address of the IDT.

3. Set up a stack for the protected mode using a data segment in the GDT.

4. Enable the A20 line to access more than 1 MB of memory.

5. Set up Page Tables to map virtual addresses to physical addresses.

6. Set up control registers CR0, CR3 and CR4 to enable paging and other protected mode features.

7. Set up the protection level in the task register (TR) by loading a segment selector for a TSS (Task State Segment) into it.

8. Finally, execute a far jump or far call to switch to protected mode by loading a code segment selector into the CS register.

Note: It's important to note that the steps listed above are just a high-level overview, and in practice, there are many subtleties and optimizations that you need to take into account. Additionally, make sure that you have a solid understanding of the underlying concepts before attempting to implement the switch to protected mode.
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