arch Directory Reference

Files
	arch.h
	CPU-local mask, context, ordering and cycle snapshot contract.
	atomic.h
	Inline naturally aligned 32-bit publication and RMW ports.
	cache.h
	Explicit whole-line CPU cache maintenance mechanisms.
	cache_control.h
	Explicit owned Cortex-M7 cold cache transitions.
	features.h
	Reviewed CPU mechanisms and allocation-free result types.
	mpu.h
	Distinct Armv7-M and Armv8-M MPU encoding mechanisms.
	nonsecure.h
	Explicit NonSecure unprivileged address permission checks.
	security.h
	Local security-state and explicit SAU region mechanisms.
	sleep.h
	Reviewed single-CPU shallow sleep contracts.