NOTICE

Implement concurrent bit access by two tasks only if the processor can execute bit access directly on the memory. All x86 and x64 systems have commands for bit access in memory. Systems such as ARM and PPC cannot access bits directly in the memory.

If two tasks execute bit access simultaneously, even though the processor cannot perform bit access directly in the memory, then proceed as follows. Use a semaphore (‎SysSemEnter‎) or a similar technique to prevent competing bit access. However, it is best to execute the bit access within a task.