On Sun, 4 Jul 2004, Jack VanOlst wrote:
Thanks for all the responses. After trying some FPU programs and still running into problems, I tried a little harder to resurrect the old Q650. Reformatting an old 840MB drive using SCSI Director allowed the 650 to recognize it, and an old Apple CDR from a 7500 allowed me to install 7.6.1 onto the drive, so that for now, the Q650 is back up and running. Once it finally dies for good, I think I will just buy another. Software FPU was extremely slow on a G3/333.
Thanks again,
Jack
If SoftFPU was extremely slow but worked, you at least know that PowerFPU will more than do the job. Here's some very old stats from when it was released, a newer version running on a G3 will be much faster:
PowerFPU Emulator (From John M. Neil)
PowerFPU is a new high-performance 68K FPU emulator for the Power Macintosh from John Neil & Associates. By working closely with the built-in Apple 68K emulator and re-directing 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 & AssociatesU other low-cost 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 JN&A FPU TimeTest 1.1 FPU benchmark, in seconds (smaller is faster)
SoftwareFPU 3.02 (emulation) 20.6 (Power Mac 8100/80)
16MHz 68881 FPU (chip) 2.53 (Mac II)
16MHz 68882 FPU (chip) 1.65 (SE/30)
PowerFPU 1.0 (emulation) * 1.60 * (Power Mac 8100/80)
40MHz 68882 FPU (chip) 0.65
40MHz 68882 FPU (chip) 0.65 (Mac IIfx)
40MHz 68040 FPU (integrated) 0.085 (Quadra 840AV)
-- Quadlist is sponsored by <http://lowendmac.com/> and...
Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! |
Support Low End Mac <http://lowendmac.com/lists/support.html>
Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/quadlist%40mail.maclaunch.com/>
Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
