From ekim@tum.de Thu Nov 16 23:51:21 1995
Path: ashpoly!cascade!mxgate!coyoacan!tum!ekim
From: ekim@tum.de (Emi Kim)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Nov16.235121.4583@tum.de>
Date: Thu, 16 Nov 1995 23:51:21 GMT
Organization: Technische Universität München
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Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.
Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.

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

-- 
Emi Kim -- Technische Universität München
"In theory there is no difference between theory and practice."

From kperez@netcom.com Sun Nov 19 03:08:21 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!netcom!kperez
From: kperez@netcom.com (Karen Pérez)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Nov19.030821.9361@netcom.com>
Date: Sun, 19 Nov 1995 03:08:21 GMT
References: <1995Nov16.235121.4583@tum.de>
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In article <1995Nov16.235121.4583@tum.de>, ekim@tum.de (Emi Kim) writes:
> Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

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

-- 
Karen Pérez
Tape trading list upon request. SASE required for international mail.

From spark@mit.edu Tue Nov 21 04:31:21 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!spark
From: spark@mit.edu (Sun-mi Park)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Nov21.043121.7991@mit.edu>
Date: Tue, 21 Nov 1995 04:31:21 GMT
References: <1995Nov16.235121.4583@tum.de> <1995Nov19.030821.9361@netcom.com>
Organization: Massachusetts Institute of Technology
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In article <1995Nov19.030821.9361@netcom.com>, kperez@netcom.com (Karen Pérez) writes:
> The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.

Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field.

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
Sun-mi Park
Opinions expressed are solely my own and not those of Massachusetts Institute of Technology.
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