From csanchez@inria.fr Tue Jan 18 03:27:42 1994
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!inria!csanchez
From: csanchez@inria.fr (Camila Sánchez)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Jan18.032742.8686@inria.fr>
Date: Tue, 18 Jan 1994 03:27:42 GMT
Organization: INRIA Rocquencourt
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Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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!

-- 
Camila Sánchez -- INRIA Rocquencourt
"The hatch is open. Is anyone listening?"

From divanov@kth.se Wed Jan 19 08:40:42 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!divanov
From: divanov@kth.se (Dmitri Ivanov)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Jan19.084042.4800@kth.se>
Date: Wed, 19 Jan 1994 08:40:42 GMT
References: <1994Jan18.032742.8686@inria.fr>
Organization: Royal Institute of Technology, Stockholm
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In article <1994Jan18.032742.8686@inria.fr>, csanchez@inria.fr (Camila Sánchez) writes:
> Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.
> By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

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

Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns.

-- 
Dmitri Ivanov
Tape trading list upon request. SASE required for international mail.

From jbrennan@illinois.edu Wed Jan 19 21:01:42 1994
Path: ashpoly!bigsur!pacrim!krgate!eunha!illinois!jbrennan
From: jbrennan@illinois.edu (Jens Brennan)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Jan19.210142.2769@illinois.edu>
Date: Wed, 19 Jan 1994 21:01:42 GMT
References: <1994Jan18.032742.8686@inria.fr>
Organization: University of Illinois Urbana-Champaign
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In article <1994Jan18.032742.8686@inria.fr>, csanchez@inria.fr (Camila Sánchez) writes:
> Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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

-- 
Jens Brennan
Tape trading list upon request. SASE required for international mail.