• Subject: Re: Have you read this?
  • From: leif@xxxxxxxxxxxxx
  • Date: Wed, 12 Jan 2000 18:31:04 -0600

> except that on some (all?) AS/400 models, the PowerPC floating point
> unit is disabled while running OS/400. So the calculations would run
> very slowly with emulated floating point operations.
> ---------------
> I find it a little difficult to believe that Rochester would design what
> call "IBM's fastest floating point processor" for the old Muskie chip sets
> then turn the thing off in all of those 530 and 53S machines.  Maybe the
> are turned off in low-end machines - that would be about par for the way
> screws us over to create their bloody "price points" - but in all models?
> doesn't seem reasonable.

I have actually only confirmed this on low-end modes. I don't know about
the high-end (that why the 'all' had a ? next to it). I was hoping from some
input from IBM lurkers on this.

About the fast FPU, don't forget that it is also used on AIX.

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