CPUID and FPU test written by Daan Waterman '1994
( 7 december 1994 )
This program detects what processor is used. It will run a check on
the FPU (Floiting Point Unit=Arithmic Coprocessor) and is able to detect
the Pentium FDIV error and the step version of the Pentium CPU.
Because it runs the same routine on a 80486 and a Pentium you can easily
see that calculations that run good on the 80486 give strange result on the
As far as we know there isn't a good P5 yet, so everyone has a buggy version.
This program can be of enormous help to people who want to buy a Pentium in
the near future. The buggy versions can be detected so the consumer can
protect himself against the buggy Pentium that will be sold much cheaper.
* BEWARE *
CAD/CAM applications and PCB design programs cannot run reliable on Pentium
machines that have the buggy P5. A serious problem !
DO NOT RUN your financial calculations on a 'buggy' Pentium because this
can cause enormous differences in the result. And can costs MONEY !
This program is *FREEWARE/Public Domain*. The only thing we hope for is
some feedback about the results on your machine. Because there could be
new P5 processors with a newer step/revision nr that do not have the bug
anymore we like to hear from you.
All Public Domain productions of D.W. will be first available at :
Ensing-BBS, Harkstede, The Netherlands :
+31 5904-1913 2:282/523
+31 5904-1388 2:282/523
+31 5904-2135 2:282/521
+31 5904-2733 2:282/522
Thanking you in advance for your replies,
Internet : [email protected]
FIDO Netmail : Daan Waterman on 2:282/521,
Local on BBS : Daan Waterman