home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!walter!att-out!rutgers!cmcl2!SPUNKY.CS.NYU.EDU!figueroa
- From: figueroa@SPUNKY.CS.NYU.EDU (Samuel A. Figueroa)
- Newsgroups: comp.os.os2.programmer
- Subject: Re: Division by 0 crashes OS2/2.0
- Message-ID: <9209091933.AA21809@SPUNKY.CS.NYU.EDU>
- Date: 9 Sep 92 19:33:04 GMT
- Sender: daemon@cmcl2.nyu.edu (Mr Background)
- Organization: New York University
- Lines: 31
-
- In a previous article, bai@msiadmin.cit.cornell.edu (Dov Bai-MSI Visitor) writes:
- >In article <1992Sep08.134945.5154@balr.com> andy@balr.com (Andrew Little) writes:
- >>In article <92Sep04.024410.14613@acs.ucalgary.ca> bauwens@acs.ucalgary.ca (Luc Bauwens) writes:
- >>>In article <1992Sep3.131306.13751@tc.cornell.edu> bai@msiadmin.cit.cornell.edu (Dov Bai-MSI Visitor) writes:
- >>>
- >>>>>>>The following short program compiled with MS-FORTRAN 5.0 with
- >>>>>>>coprocessor crashes OS2 Ver. 2 on my machine:
- >>>
- >>>I am inclined to believe the other poster (sorry, forgot his name)
- >>>who says it may be hardware-related.
- >>>
- >>>But in my case, it's not an issue of the known bug in some 486
- >>>motherboards: I am running this on a 386-25 (an old Mylex motherboard
- >>>that I have normally found quite reliable) and (*here it gets
- >>>interesting?*) an IIT FPU *not an Intel*.
- >> ^^^^^^^
- >>FYI, we have been able to crash our 386 Unix box (Interactive 3.2)
- >>with divide by zeros when we used this FPU, and don't have the same
- >>problem with Intel.
- >
- >The Coprocessor that crashes OS/2 2.0 on my machine is Cyrix.
-
- I am interested in floating-point arithmetic in general. I am wondering
- if this behavior can occur with Intel math coprocessors. (Someone has
- already mentioned that it can occur on poorly-designed 486 motherboards.)
- If not, is it due to a bug in IIT and Cyrix chips, and if so, has/will it
- be corrected? What other brands of coprocessors exhibit this behavior?
- ------------
- Sam Figueroa (figueroa@cs.nyu.edu)
- This is not a .signature virus.
- Do NOT copy me into your .signature file!
-