x86-bare-metal-examples/not-testable-in-userland.md

Not testable in userland

This section contains concepts that depend only on the CPU, but that cannot be tested on userland because they'd require ring 0.

Examples:

• real mode concepts. Userland cannot switch to real mode.
• segment registers.

This section does not include concepts that depend on hardware other than the CPU itself, e.g. BIOS.

Concepts that can be tested from userland will be tested at: https://github.com/cirosantilli/assembly-cheat