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-----Original Message----- From: leif@attglobal.net [mailto:leif@attglobal.net] > 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 they > call "IBM's fastest floating point processor" for the old Muskie chip sets and > then turn the thing off in all of those 530 and 53S machines. Maybe the FPU's > are turned off in low-end machines - that would be about par for the way IBM > screws us over to create their bloody "price points" - but in all models? That > 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. --------------------------- That's true of the current Northstar microprocessors, but was NOT true of the old Muskie chip sets - they were AS/400 only. Certainly the Muskie FPU technology has been re-used in more recent IBM offerings, but it was originally designed with the AS/400 as the only target, at least according to "Inside the AS/400 Second Edition". Dave Shaw +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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