Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!psuvax1!psuvm!cunyvm!ndsuvm1!mtus5!applerep
From: APPLEREP@MTUS5.BITNET
Newsgroups: comp.sys.mac.apps
Subject: Re: PseudoFPU v1.1 ?
Message-ID: <91039.125441APPLEREP@MTUS5.BITNET>
Date: 8 Feb 91 17:54:41 GMT
References: <6813@harrier.ukc.ac.uk> <8302@castle.ed.ac.uk>
 <23050@well.sf.ca.us>
Organization: Computing Technology Services, Michigan Technological Univ.
Lines: 21

I got PseudoFPU 1.1 off of Sumex.  I tried it on a Mac LC, comparing
performance of Wingz for the 68000 vs the 68020/68881 version.  There must
be _a_lot_ of overhead involved, because the FPU version of  Wingz ran the
Test flight file easily 10 times slower than the non-FPU version.

This brings about 2 questions:

1.  Have other people seen similiar performance?  (Comparing non-FPU and FPU
versions of the same program while using PseudoFPU)

2.  Is there a card out yet that is _just_ a Floating point unit?  I know of
the Ethernet/FPU socket card from Dayna, and similiar video cards, but if a
person just wants a floating point unit, they would be paying extra for unused
circuitry.

(BTW, I don't want to seem like I am ripping on the author of Pseudo FPU.  All
in all, a very good peice of work, and I will certainly pay if any shareware
fee is involved.)

Tom Amberg
Michigan Tech