FP problems - buggy 386/7?

Tom May tom at yang.cpac.washington.edu
Sun Dec 17 07:06:05 AEST 1989


This is probably asked all the time, etc., etc., etc., but I just
started using 386/ix and Xenix 386, so I haven't been following these
newsgroups.  Which 386 and/or 387 processors have bugs?  I have a very
simple floating point program which produces varying incorrect results
under both 386/ix and Xenix, so I suspect my hardware, which is a
Compaq 386/25 with the following identification on the chips:

	80386:	A80386DX-25
		L8281253
		(m)(c)i '85 '86
		and two sigmas in the lower right corner

	80387:	A80387-25
		8X106
		L8300722
		(m)(c) INTEL '86

	82385:	A82385-25 (B)
		SZ121
		L8271301
		(m)(c) INTEL '87

If these chips are hosed, which ones should I get?  Thanks.
--
Tom May
tom at yang.cpac.washington.edu



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