From owner-freebsd-hackers Wed Aug 6 02:34:12 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id CAA11417 for hackers-outgoing; Wed, 6 Aug 1997 02:34:12 -0700 (PDT) Received: from bugs.us.dell.com (bugs.us.dell.com [143.166.169.147]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id CAA11400 for ; Wed, 6 Aug 1997 02:34:09 -0700 (PDT) Received: from moth.us.dell.com (moth.us.dell.com [143.166.169.152]) by bugs.us.dell.com (8.6.12/8.6.12) with SMTP id EAA11960; Wed, 6 Aug 1997 04:33:04 -0500 Message-Id: <3.0.2.32.19970806011906.006df3e4@bugs.us.dell.com> X-Sender: tony@bugs.us.dell.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.2 (32) Date: Wed, 06 Aug 1997 01:19:06 -0500 To: Peter Korsten From: Tony Overfield Subject: Re: Pentium II? Cc: hackers@FreeBSD.ORG In-Reply-To: <19970805151400.03327@grendel.IAEhv.nl> References: <3.0.2.32.19970804125532.0070d730@bugs.us.dell.com> <3.0.2.32.19970803041901.006a69e4@bugs.us.dell.com> <3.0.2.32.19970804125532.0070d730@bugs.us.dell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk At 03:14 PM 8/5/97 +0200, Peter Korsten wrote: >Maybe I'm naive here, but isn't it kinda impossible to write 64 >bits at one time over a 32 bits bus? 64 bits PCI isn't that wide- >spread yet and while you may be able to write 64 bits at a time, >they'll have to move in two chunks of 32 bits. You're certainly right, but that's not what I said. It's possible for the two 32-bit chunks to be combined back into a 64-bit chunk before the 64-bit DRAM sees it. But I also said it happened often, which probably isn't true at this time.