Date: Fri, 18 Jul 1997 10:34:30 -0500 (CDT) From: "M. L. Dodson" <bdodson@beowulf.utmb.edu> To: hackers@freebsd.org Subject: PentiumPro/II floating point "errata" impact Message-ID: <199707181534.KAA13685@beowulf.utmb.edu>
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Hi, Does anyone know if the floating point bug in PentiumPros and PentiumIIs is likely to be manifest in libm? I'm talking about the unflagged overflow when converting from floating point to integer (FIST? or some such). If it is, does anyone know whether this can be handled by code generation in the gcc backend? (The Intel web site talks about software workarounds.) I use g77 to compile chemical kinetics simulation code, just got a new PentiumPro workstation, and would like to know how likely this is to affect my results. Would not be too happy to have to compile it all to assembler, and grep out the the instruction codes :) TIA, Bud Dodson -- M. L. Dodson bdodson@scms.utmb.edu 409-772-2178 FAX: 409-772-1790
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