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Altivec Extensions in MacOS 9.1
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Dedicated MacNNer
Join Date: Dec 1999
Location: CA
Status:
Offline
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Last night, I did a clean install of MacOS 9.1. I didn't have a 9.1 install CD so I just installed 9.0 and updated to 9.1. Then today, I was reading the developer's technotes on the new G4s and I read about the Altivec extensions that came with them. I went to the Extensions Manager to see if they had been updated and I couldn't find them! I searched with Sherlock and opened the 9.1 Tome file, but they were nowhere to be seen. Does anyone have any insights on this? I can certainly extract them from the 9.0 and 9.0.4 installers, but 9.1 may have never versions. Thanks.
Lucian
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Phaedrus
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Same here.
Missing are:
vBasicOps
vBigNum
vectorOps
vMathLib
Maybe Apple incorporated them into the new nanokernal?
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Dedicated MacNNer
Join Date: Mar 2000
Location: Colorado Springs, Colorado, USA
Status:
Offline
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They are in the nanokernel now, if you run a 9.0.4 vs. a 9.1 machine using AltiVec operations you'll notice that the 9.1 machine does them even faster!
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Pax Christi,
-Nik!
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Grizzled Veteran
Join Date: Mar 2000
Location: Massachusetts, USA
Status:
Offline
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Correct, the four Altivec extensions are now rolled into the code of the System itself.
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Dedicated MacNNer
Join Date: Dec 1999
Location: CA
Status:
Offline
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Thanks for your help guys.
Lucian
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eucci
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There's also vDSP, the "virtual-DSP" library which takes massive advantage of AltiVec.
(It really amazes me to see the difference in iTunes ripping\encoding between my 400mhz G3 iMac at home and the 400mhz (single processor) G4 at work).
More megahertz myth.
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Mac Enthusiast
Join Date: May 1999
Location: Green Bay, WI USA
Status:
Offline
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According to posts at www.xlr8yourmac.com if you were to install those altivec extensions on top of 9.1, your machine will actually run slower.
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The Mac Information Depot. Why go anywhere else?
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