Path: csiph.com!x330-a1.tempe.blueboxinc.net!feeder1.hal-mli.net!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Wed, 18 May 2011 08:39:01 -0500 Message-ID: <4DD3CBF4.6020909@SPAM.comp-arch.net> Date: Wed, 18 May 2011 06:39:00 -0700 From: "Andy \"Krazy\" Glew" Reply-To: andy@SPAM.comp-arch.net Organization: comp-arch.net User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.11) Gecko/20101013 Thunderbird/3.1.5 MIME-Version: 1.0 Newsgroups: comp.arch Subject: Re: Why is complex lea slow? References: <9ceb0829-013e-4ee4-8ab3-9378ae59fe37@glegroupsg2000goo.googlegroups.com> <4DD3C8CA.70909@SPAM.comp-arch.net> In-Reply-To: <4DD3C8CA.70909@SPAM.comp-arch.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Lines: 4 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-zG3ukvxm2UIXJQ9IQbkjBTDgtuUa5vCyUIzrHDJwjwtIquoIxVNOtfAs7Q7dmrltzDxuQvjRRbnQwal!zxg3uJxga01T8ruA3BGhp+gL2WKdP9Gjig1XgtnVIFzh3E7OegCEq6cjmANE X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1501 Xref: x330-a1.tempe.blueboxinc.net comp.arch:1665 > This sounds like an essay for the comp-arch.net wiki. http://semipublic.comp-arch.net/wiki/Why_dynamic_shift_count_instructions_are_often_slower_than_constant_shift_count_instructions