From echoi@u-tokyo.ac.jp Mon Feb 26 01:35:53 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!echoi
From: echoi@u-tokyo.ac.jp (Emi Choi)
Newsgroups: comp.sys.m68k
Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Feb26.013553.8311@u-tokyo.ac.jp>
Date: Mon, 26 Feb 1996 01:35:53 GMT
Organization: University of Tokyo Department of Information Science
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Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

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

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

-- 
Emi Choi -- University of Tokyo Department of Information Science
"They will send a copy in my place."

From tmuller@cern.ch Mon Feb 26 11:06:53 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!tmuller
From: tmuller@cern.ch (Thiago Müller)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Feb26.110653.1819@cern.ch>
Date: Mon, 26 Feb 1996 11:06:53 GMT
References: <1996Feb26.013553.8311@u-tokyo.ac.jp>
Organization: European Laboratory for Particle Physics, Geneva
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In article <1996Feb26.013553.8311@u-tokyo.ac.jp>, echoi@u-tokyo.ac.jp (Emi Choi) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead.

PGP Public key available via finger or upon request.

-- 
=== Thiago Müller ===
Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva
"Extraordinary claims require extraordinary spectra."