From pokonkwo@purdue.edu Wed Feb 28 21:19:51 1996
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From: pokonkwo@purdue.edu (Pavel Okonkwo)
Newsgroups: comp.sys.m68k
Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Feb28.211951.5577@purdue.edu>
Date: Wed, 28 Feb 1996 21:19:51 GMT
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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.

-- 
=== Pavel Okonkwo ===
Dept of Electrical Engineering, Purdue University Engineering Computer Network
"In theory there is no difference between theory and practice."

From nsouza@unam.mx Fri Mar 01 18:41:51 1996
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From: nsouza@unam.mx (Nadia Souza)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Mar01.184151.7202@unam.mx>
Date: Fri, 01 Mar 1996 18:41:51 GMT
References: <1996Feb28.211951.5577@purdue.edu>
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In article <1996Feb28.211951.5577@purdue.edu>, pokonkwo@purdue.edu (Pavel Okonkwo) 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.

Top-posters will be placed in my ~/.killfile without notice.

-- 
Nadia Souza
Tape trading list upon request. SASE required for international mail.