From mkowalski@hanse.de Tue Sep 26 12:07:41 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!mkowalski
From: mkowalski@hanse.de (Mikhail Kowalski)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep26.120741.7798@hanse.de>
Date: Tue, 26 Sep 1995 12:07:41 GMT
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Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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.

Anyone running this on a Quadra 840AV with the 68040?

-- 
Mikhail Kowalski -- Hanse-Netzwerk Hamburg
"The hatch is open. Is anyone listening?"

From adubois@kth.se Wed Sep 27 10:47:41 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!kth!adubois
From: adubois@kth.se (Andrei Dubois)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep27.104741.9065@kth.se>
Date: Wed, 27 Sep 1995 10:47:41 GMT
References: <1995Sep26.120741.7798@hanse.de>
Organization: Royal Institute of Technology, Stockholm
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In article <1995Sep26.120741.7798@hanse.de>, mkowalski@hanse.de (Mikhail Kowalski) 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.

-- 
=== Andrei Dubois ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"5 sigma is a discovery. 7 is a question."