PowerFPU is a software 68K FPU emulator for PPC Macs. It's a Control Panel, similar to SoftwareFPU, but much faster and more efficient. This software may be necessary to run (certain) older 68K apps on PPC hardware.
PowerFPU is a high-performance 68K FPU emulator for the Power Macintosh from John Neil & Associates.
By working closely with the built-in Apple 68K emulator and redirecting 68K FPU calls to the high-speed PowerPC CPU, PowerFPU provides extremely fast 68K FPU emulation. PowerFPU is over ten times faster than SoftwareFPU, John Neil & Associates' other freeware FPU emulator, and faster than some versions of the Motorola FPU chip itself! The chart below shows where PowerFPU performance falls in the range of Macintosh FPU performance:
Time to execute John Neil & Associates FPU Time Test FPU benchmark:
PowerFPU 1.0 (emulation) 1.60 (Power Mac 8100/80) 16MHz 68882 FPU (chip) 1.65 (SE/30) 16MHz 68881 FPU (chip) 2.53 (Mac II) SoftwareFPU 3.02 (emulation) 20.6 (Power Mac 8100/80)
With PowerFPU you can run all 68K FPU applications at full-speed on your Power Macintosh!
Excerpt: — John Neil & Associates
View the author Tom Pittman's page: www.ittybittycomputers.com/IttyBitty/PowerFPU/
See Also: SoftwareFPUCompatibility
Requires a PPC Mac.
"One unlucky user discovered that opening the PowerFPU control panel disables it, requiring a re-install. Just install it and don't open it, if you have that problem."