From owner-freebsd-hackers Thu Mar 23 11:23:57 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from mail.ptd.net (mail2.ha-net.ptd.net [207.44.96.66]) by hub.freebsd.org (Postfix) with SMTP id C505637BE35 for ; Thu, 23 Mar 2000 11:23:54 -0800 (PST) (envelope-from tms2@mail.ptd.net) Received: (qmail 2011 invoked from network); 23 Mar 2000 19:24:04 -0000 Received: from du208.cli.ptd.net (HELO mail.ptd.net) (204.186.33.208) by mail.ptd.net with SMTP; 23 Mar 2000 19:24:04 -0000 Message-ID: <38DA6F22.90DB3388@mail.ptd.net> Date: Thu, 23 Mar 2000 14:23:14 -0500 From: "Thomas M. Sommers" X-Mailer: Mozilla 4.51 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: hackers@FreeBSD.ORG Subject: Re: Doh, compiler bug... (was Re: possible bug in kernel/if_ether.c) References: <20000322225639.T983@reptiles.org> <200003230515.VAA96507@apollo.backplane.com> <20000323054731.W983@reptiles.org> <200003231829.KAA02591@apollo.backplane.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matthew Dillon wrote: > > :0xc01997a7 : sete %al > :0xc01997aa : movzbl %al,%ebx BING BING BING! > :0xc01997ad : testl %ebx,%ebx > [snip] > What the frig is this 'sete' instruction? And the movzbl ? Move byte > to long? > sete is set byte if equal (zf set). movzbl is as you supposed, but with zero extend. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message