Look free ID genertion (was: Is there a more efficient threading lock?)

[Dennis Lee Bieber]

On Thu, 2 Mar 2023 12:45:50 +1100, Chris Angelico <rosuav at gmail.com>
declaimed the following:

>
>As have all CPUs since; it's the only way to implement locks (push the
>locking all the way down to the CPU level).
>

	Xerox Sigma (circa 1970): Modify and Test (byte/halfword/word)

	Granted, that was a "mainframe" system, not a microprocessor.

	Looks like Intel didn't catch the boat until 1985 and the i386.



-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
	wlfraed at ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/