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Architecture: PPC
PPC 601 - 604 speed libs
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Download 601-604speedlibs.sit
(67.79 KB)
For System 7.0 - 7.6 - Mac OS 9
For System 7.0 - 7.6 - Mac OS 9
New PPC MathLib to accelerate certain mathematical processing, some by 1000x (Tan/Cos). Can make maths intensive programs really fly.
CompatibilityArchitecture: PPC
Comments
The libraries indeed seem to be helpful with real hardware PPCs.
Norton System Info shows a 7.5% gain with the FPU score on a 601/80MHz.
+7.5% was the bummer those days, as far as I can recall.
@Everyone,
This was posted as a rarity, to fix a well known bug in one or two versions of MacOS' mathlib. It could in some instances run atypical trig functions 1000x faster than the OS.
This was only of any help if you did 3D modelling or high-end drafting.
This upload is only of historical reference to that buggy time (remember the original Pentium math bug?)
@24bit: no Benchmarks included except for my *very subjective* observations.
The rough tests was checking if SS on my 'Leopard' PPC could run with the libs included. As pointed out regarding 3D the libs could maybe be of some help in some rare not yet specified cases, ie really doesn´t matter in your daily run. Still to try this on the real HW. Shame I put that G3-card in the 9600…
I don't see how this will help with SheepShaver.
I tried speed604.lib with Sheepshaver. Host system is Mandriva2010 32bit, MacOS is 7.6.
Norton SystemInfo says, the FPU score is minus 3% with the extension installed. (sorry)
What benchmarks did you try SwedeBear ?
I don't think so : those games usually do not rely on real math functions, but use lookup tables of precomputed values, or some clever tricks (ex: the inverse square root function used by Carmack in Quake3, of which the real creator is not clearly known) to avoid using costly trigonometric functions.
I *did* a rough test with SS and OS 9/8.6/7.6. They don't slow things down, at least. Maybe a bit snappier in over-all feel. What you say themacmeister, could the libs help (SW) 3D-rendering in games?
@SwedeBear, this new maths lib only has new logarithmic/trigonometric functions, which while being very specific, do give an order of magnitude speed increase! In a 3D program, or especially CAD programs... I'm sure there should still be some web pages with benchmarks (maybe the internet archive has it).
Would this give any effect in SheepShaver, or is it only working w HW?
I should have put 601 thru 604. The 603 should benefit from this library replacement!
Back up your original FIRST, always!
And what about the 603 and 603e used in PPC Performas ?
yeah, sorry xy -- they fixed the maths library after the 604...
Sorry, forget my question. Of course, G3 and G4 is not PPC 601-604.
Is this also good for G3 and G4?