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[avr-libc-dev] [bug #37778] _MemoryBarrier() in cpufunc.h error on compi

From: Dmitry Xmelkov
Subject: [avr-libc-dev] [bug #37778] _MemoryBarrier() in cpufunc.h error on compile
Date: Sun, 27 Jan 2013 12:58:16 +0000
User-agent: Mozilla/5.0 (X11; Linux i686; rv:2.0.1) Gecko/20110328 Firefox/4.0.1

Update of bug #37778 (project avr-libc):

                  Status:                    None => In Progress            
        Percent Complete:                      0% => 50%                    
             Assigned to:                    None => dmix                   


Follow-up Comment #2:

What is the necessity to add memory barrier for _NOP()?
Common usage, like:
    PORTB |= 1;
    PORTB &= ~1;
is safe, as hardware registers are volatile.


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