From mgonzalez@mindspring.com Thu Aug 24 16:22:35 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!mgonzalez
From: mgonzalez@mindspring.com (Marta González)
Newsgroups: comp.sys.m68k
Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug24.162235.8300@mindspring.com>
Date: Thu, 24 Aug 1995 16:22:35 GMT
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Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

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.

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

-- 
Marta González | mgonzalez@mindspring.com
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"Keep the channels open."

From tlindqvist@uu.net Thu Aug 24 20:56:35 1995
Path: ashpoly!cascade!mxgate!coyoacan!uu!tlindqvist
From: tlindqvist@uu.net (Thiago Lindqvist)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug24.205635.4841@uu.net>
Date: Thu, 24 Aug 1995 20:56:35 GMT
References: <1995Aug24.162235.8300@mindspring.com>
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In article <1995Aug24.162235.8300@mindspring.com>, mgonzalez@mindspring.com (Marta González) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).
> By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

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

-- 
Thiago Lindqvist
Tape trading list upon request. SASE required for international mail.