Protection Levels
In T-Kernel, four stages of protection levels, from 0 to 3, can be specified. However, in µT-Kernel, systems without MMU are assumed, so each of the specified protection level shall be handled as protection level 0.
[Difference with T-Kernel]
The specification of handling protection levels exists in T-Kernel, and protection level 0 is assigned to OS or subsystems, protection level 1 is assigned to system applications, protection level 2 is reserved, and protection level 3 is assigned to user applications.

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