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Re: [avr-gcc-list] "Volatile"

From: E. Weddington
Subject: Re: [avr-gcc-list] "Volatile"
Date: Mon, 18 Apr 2005 06:47:01 -0600
User-agent: Mozilla Thunderbird 1.0 (Windows/20041206)

Jeff Epler wrote:

On Sun, Apr 17, 2005 at 03:27:37PM +0200, David Brown wrote:
If your flag is declared as "volatile unsigned char flag", then
operations such as "flag = 0" and "flag = 1" are atomic.

But is that a requirement of the standard, or simply because
1-byte-wide stores are atomic on the AVR architecture?  I believe it's
the latter.

Agreed, IMHO it's the latter.

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