From bcampbell@delphi.com Sat Dec 07 15:47:08 1996
Path: ashpoly!cascade!transat!ukc!fennimore!delphi!bcampbell
From: bcampbell@delphi.com (Bill Campbell)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Dec07.154708.2997@delphi.com>
Date: Sat, 07 Dec 1996 15:47:08 GMT
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Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions.
By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

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

-- 
Bill Campbell | bcampbell@delphi.com
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"Keep the channels open."

From aweber@netcom.com Sun Dec 08 05:52:08 1996
Path: ashpoly!cascade!transat!ukc!fennimore!netcom!aweber
From: aweber@netcom.com (Astrid Weber)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Dec08.055208.6311@netcom.com>
Date: Sun, 08 Dec 1996 05:52:08 GMT
References: <1996Dec07.154708.2997@delphi.com>
Organization: NETCOM On-Line Communication Services
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In article <1996Dec07.154708.2997@delphi.com>, bcampbell@delphi.com (Bill Campbell) writes:
> Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

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

-- 
Astrid Weber -- NETCOM On-Line Communication Services
"The hatch is open. Is anyone listening?"