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Re: [avr-gcc-list] efficiency of assigning bits

From: Christof Krueger
Subject: Re: [avr-gcc-list] efficiency of assigning bits
Date: Mon, 14 Mar 2005 20:49:34 +0100
User-agent: Mozilla Thunderbird 1.0 (X11/20050116)

David Willmore wrote:
There is no implied simultinaity in any of these statements--
all C offers you is that the user code won't be able to tell
the difference--unless PORTD is defined as a volatile.  Which
may be the default and would explain my confusion.

PORTD indeed is volatile as all IO registers are.

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