From tcampbell@titech.ac.jp Mon Jan 09 21:47:04 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!tcampbell
From: tcampbell@titech.ac.jp (Tobias Campbell)
Newsgroups: comp.sys.m68k
Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jan09.214704.6439@titech.ac.jp>
Date: Mon, 09 Jan 1995 21:47:04 GMT
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Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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

I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector.

-- 
Tobias Campbell | tcampbell@titech.ac.jp
PGP Key fingerprint: 89EF 2DF2 50C1 4B5D
"Keep the channels open."

From nkim@mit.edu Tue Jan 10 19:18:04 1995
Path: ashpoly!cascade!mxgate!coyoacan!mit!nkim
From: nkim@mit.edu (Nadine Kim)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jan10.191804.3502@mit.edu>
Date: Tue, 10 Jan 1995 19:18:04 GMT
References: <1995Jan09.214704.6439@titech.ac.jp>
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In article <1995Jan09.214704.6439@titech.ac.jp>, tcampbell@titech.ac.jp (Tobias Campbell) writes:
> Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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

Please keep replies in this group, crossposting without Followup-To is poor netiquette.

-- 
Nadine Kim
Tape trading list upon request. SASE required for international mail.