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| 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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