Re: [avr-gcc-list] generic queue library for AVR GCC?

[Bruce D. Lightner]

Theodore A. Roth wrote:

> > My way also preserves the original state of the interrupt flag,
> > which may be essential, depending upon the circumstance.
>
> It's not obvious to me that Geoffrey's method does not preserve the
> state of the I flag. In both your code and his the SREG ends up on the
> stack during a context switch or interrupt (implicitly with your code
> and explicitly with Geoffrey's).
>
> Can someone please explain how the state the I flag is not preserved?

Sorry to mislead you.  It *is* preserved.  Let me re-phrase...

*Just like Geoffrey's method*, my way also preserves the original
state of the interrupt flag, which may be essential, depending
upon the circumstance.

Best regards,

Bruce

--
 Bruce D. Lightner
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