Richard Barry c296e2cff8 Improvements to the Cortex-M ports: ... - Clear the SysTick current value register before starting the SysTick (only required if something uses SysTick before starting the scheduler). - Ensure atomic operations are thread safe by executing clrex in the context switch.		2016-06-27 13:13:05 +00:00
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ARM_CM4F	Improvements to the Cortex-M ports:	2016-06-27 13:13:05 +00:00