Date: Thu, 05 Oct 2000 16:34:00 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Mike Smith <msmith@FreeBSD.org> Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: Re: cvs commit: src/sys/alpha/include atomic.h src/sys/i386/incl Message-ID: <XFMail.001005163400.jhb@FreeBSD.org> In-Reply-To: <200010052235.e95MZ2h03295@mass.osd.bsdi.com>
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On 05-Oct-00 Mike Smith wrote: >> jhb 2000/10/05 15:19:50 PDT >> >> Modified files: >> sys/alpha/include atomic.h >> sys/i386/include atomic.h >> Log: >> Add atomic_readandclear_int and atomic_readandclear_long. > > Um, isn't this just exchange-with-zero? That's one way of implementing it, yes. That is not the method used by the alpha, however. I chose the name due to prior existence. The alpha already had an atomic_readandclear_int, albeit buried in the ipl code. The x86 had a similar loadandclear() in cpufunc.h -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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