From cstewart@cam.ac.uk Fri Aug 09 14:04:17 1996
Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!cstewart
From: cstewart@cam.ac.uk (Callum Stewart)
Newsgroups: comp.sys.m68k
Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Aug09.140417.6512@cam.ac.uk>
Date: Fri, 09 Aug 1996 14:04:17 GMT
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Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.
Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.

Make sure you install the 32-bit Enabler on older IIci machines running System 7.1!

-- 
Callum Stewart
Tape trading list upon request. SASE required for international mail.

From rgirard@uni-hamburg.de Sat Aug 10 09:10:17 1996
Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!rgirard
From: rgirard@uni-hamburg.de (Renata Girard)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Aug10.091017.4026@uni-hamburg.de>
Date: Sat, 10 Aug 1996 09:10:17 GMT
References: <1996Aug09.140417.6512@cam.ac.uk>
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In article <1996Aug09.140417.6512@cam.ac.uk>, cstewart@cam.ac.uk (Callum Stewart) writes:
> Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?
> Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.

The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.

-- 
Renata Girard | rgirard@uni-hamburg.de
PGP Key fingerprint: B85A F47F 167E BD34
"Keep the channels open."