D. Jay Newman wrote:
>>> I seem to remember a discussion somewhere (maybe on the Microchip
>>> forum) about whether any of the PICs had an atomic test and set
>>> capability.  The consensus seemed to be that this was not possible.
>>
>> Why is it not possible at the very least by temporarily disabling
>> interrupts?  Also the 30F do have a bit test and set instruction.
>
> It is *possible* to do preemptive multitasking. I just can't see
> any reason to actually use it.

But the question wasn't about preemptive multitasking.  It was about atomic
test and set capability.


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