Problems with an Intel 486 chip

[Thomas Hoberg]

|> 
|> I don't know about Q0129; when I bought mine, I was told it was a "B5"
|> and the only place I found B5 on the chip was on the bottom, which means
*** Ahh, there it is then... ***
|> if you want to know what you've got, you'll have to pry the thing out
|> of its socket.  I've heard that there are B6 and C0 revs out.
...
|> -- 
|> Kaleb Keithley                      Jet Propulsion Labs
|> kaleb at thyme.jpl.nasa.gov

I read something like ...308... on mine and hoped it would at least be a B6.
Now Intel doesn't seem interested in publishing bug-lists (been quite a hot
discussion about that elsewhere) but I would still like to know about those
obscure floating-point bugs. Compaq used to publish a disconcerting bug list
for the 386 in their tech manuals, which I thought grand. It's difficult enough
to trace compiler bugs (companies are very silent about those, too--too bad 
GNU Fortran isn't there yet). I'd appreciate it very much, if somebody could
provide pointers to 486 bug lists and diagnostics programs. BTW. those 32-bit
Intel CPU's are supposed to report their revision ID's after reset. I'm afraid
my BIOS trashes those before I ever have a chance to look at them (even when
doing a SHUTDOWN #9 return).
----
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