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x86-bare-metal-examples/cpu.md

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2016-03-14 09:25:31 +01:00
# CPU
2015-09-20 15:51:38 +02:00
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>