Date: Wed, 30 Dec 1998 16:03:28 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Doug Rabson <dfr@nlsystems.com> Cc: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>, 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 Message-ID: <87569.915030208@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 30 Dec 1998 15:02:04 GMT." <Pine.BSF.4.01.9812301501080.1813-100000@herring.nlsystems.com>
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In message <Pine.BSF.4.01.9812301501080.1813-100000@herring.nlsystems.com>, 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
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