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Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!agate!howland.reston.ans.net!ira.uka.de!news.dfn.de!urmel.informatik.rwth-aachen.de!acds.physik.rwth-aachen.de!kuku From: kuku@acds.physik.rwth-aachen.de (Christoph Kukulies) Newsgroups: comp.os.386bsd.bugs Subject: fpu emulator trap in gcc 2.3.3 compiled programs Date: 4 May 1993 17:59:05 GMT Organization: I.Physikalisches Institut RWTH-Aachen Lines: 35 Distribution: world Message-ID: <1s6at9$t5s@urmel.informatik.rwth-aachen.de> Reply-To: kuku@acds.physik.rwth-aachen.de NNTP-Posting-Host: acds.physik.rwth-aachen.de Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit I have one 386BSD equipped machine which I'm not very happy with. It's as it turned out lateley a 486, not original Intel, but AMD. It is said to be a 33 MHz - I believe. The built up the machine for me is currently on vacation so I cannot say exactly right now. Anyway, I decided to open the case when I got a message like math_emulate: instruction d9fe not implemented Illegal instruction (core dumped) on the screen on all programs which I compiled newly with my libm.a/libc.a, a hand patched one (I compile everything with gcc2.3.3 -m486 -mieee_fp -ffastmath). Also I found floating point operation very slow on that machine which made me suspect that it's not an original Intel CPU. Looking at the motherboard revealed what I suspected. So my question is: Are there AMD 486 processors around which have no FPU built in or which make the emulator become active for other reasons? I know there are some lower speed 486SLX or something like that but I thought I had a 486 with FPU. Anyway, given that the emulator is running for a good reason, the above message uncovers a emulator bug, doesn't it? -- --Chris Christoph P. U. Kukulies kuku@acds.physik.rwth-aachen.de *** Error code 1 Stop.