From owner-cvs-all Wed Dec 30 07:05:12 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id HAA22597 for cvs-all-outgoing; Wed, 30 Dec 1998 07:05:12 -0800 (PST) (envelope-from owner-cvs-all@FreeBSD.ORG) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.40.131]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id HAA22590; Wed, 30 Dec 1998 07:05:07 -0800 (PST) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.9.1/8.8.5) with ESMTP id QAA87571; Wed, 30 Dec 1998 16:03:29 +0100 (CET) To: Doug Rabson cc: Hidetoshi Shimokawa , dfr@FreeBSD.ORG, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/alpha/alpha vm_machdep.c machdep.c fp_emulate.c trap.c src/sys/alpha/include vmparam.h src/sys/kern init_main.c kern_exec.c src/sys/sys imgact.h In-reply-to: Your message of "Wed, 30 Dec 1998 15:02:04 GMT." Date: Wed, 30 Dec 1998 16:03:28 +0100 Message-ID: <87569.915030208@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk In message , Dou g Rabson writes: >On Wed, 30 Dec 1998, Hidetoshi Shimokawa wrote: > >> dfr> * Disable all floating point exceptions by default. >> >> My understanding is that we still get SIGFPE without >> "-mtrap-precision=i -mfp-trap-mode=su" option of cc and default >> cc doesn't have this option. Am I right? > >That is true (I think). I'm not quite sure what happens if exceptions are >disabled but an operation generates an underflow. Don't you just get denormalized numbers, NaNs and similar monsters ? -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." "ttyv0" -- What UNIX calls a $20K state-of-the-art, 3D, hi-res color terminal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message