Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: mitchalsup@aol.com (MitchAlsup1) Newsgroups: comp.arch Subject: Re: Why VAX Was the Ultimate CISC and Not RISC Date: Wed, 12 Mar 2025 00:42:19 +0000 Organization: Rocksolid Light Message-ID: <73c17ba38fd8e9a3584cab8b923f378e@www.novabbs.org> References: <5pkg9l-kipt.ln1@msc27.me.uk> <2025Mar3.174417@mips.complang.tuwien.ac.at> <2025Mar4.110420@mips.complang.tuwien.ac.at> <2025Mar5.083636@mips.complang.tuwien.ac.at> <9371fe9be75cdd606c876f539e1d2d78@www.novabbs.org> <0da86de26bac1912b190793512255aa4@www.novabbs.org> <5e696219dedf30d0095dfd7671a4c87f@www.novabbs.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: i2pn2.org; logging-data="3957176"; mail-complaints-to="usenet@i2pn2.org"; posting-account="o5SwNDfMfYu6Mv4wwLiW6e/jbA93UAdzFodw5PEa6eU"; User-Agent: Rocksolid Light X-Rslight-Site: $2y$10$ldf0zEKz30LzPVzJxV0knOfvkLXksgsy1m602G5U2WQs.ftfCNC/K X-Spam-Checker-Version: SpamAssassin 4.0.0 X-Rslight-Posting-User: cb29269328a20fe5719ed6a1c397e21f651bda71 On Tue, 11 Mar 2025 22:42:02 +0000, Lawrence D'Oliveiro wrote: > On Tue, 11 Mar 2025 11:15:06 -0700, Stephen Fuld wrote: > >> A somewhat related question, if one wants to copy the contents of R3 >> into R2, is that a load or a store? :-) > > The true hardware engineer knows that it is neither, it is merely a > register rename. ;) And a move of the pre-renamed register back to the free pool.