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Qwerty
Joined: 20 May 2005
Posts: 3141
Location: Germany
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 Posted: Fri Sep 02, 2005 1:56 pm Post subject: Pentium-66 and FDIV bug |
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Hi,
I have a question about Pentium-66 processor.
I have two Pentium-66 CPUs with equal sSpecs - SX837, but one of them has the old logo (with "PROCESSOR" marking) and the other CPU has the new logo.
How is it possible that the CPUs with the same sSpec number have different logos ?!
Which of them has the FDIV bug ? I thought that the processors with "PROCESSOR" marking have this bug, and the CPUs without "PROCESSOR" don't. But I am not sure now. And I can't test them (no mainboard).
Thanks. |
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Cpuswe
Joined: 15 Mar 2005
Posts: 2214
Location: Karlskrona, Sweden
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morkork
Joined: 25 Feb 2003
Posts: 447
Location: Nuremberg, Germany
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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| Posted: Sun Nov 06, 2005 7:04 pm Post subject: |
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FDIV bug means that calculation :
4195835-(4195835/3145727)*3145727
result must be = 0
but result with FDIV bug = 256
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