From tnilsson@rwth-aachen.de Fri Aug 25 05:45:44 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!tnilsson From: tnilsson@rwth-aachen.de (Thiago Nilsson) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug25.054544.2393@rwth-aachen.de> Date: Fri, 25 Aug 1995 05:45:44 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. -- Thiago Nilsson | tnilsson@rwth-aachen.de PGP Key fingerprint: 9215 F99C 72F5 C36D "Keep the channels open." From bweber@cmu.edu Fri Aug 25 21:34:44 1995 Path: ashpoly!cascade!bigsur!cmu!bweber From: bweber@cmu.edu (Bruno Weber) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug25.213444.8463@cmu.edu> Date: Fri, 25 Aug 1995 21:34:44 GMT References: <1995Aug25.054544.2393@rwth-aachen.de> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Aug25.054544.2393@rwth-aachen.de>, tnilsson@rwth-aachen.de (Thiago Nilsson) writes: > 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. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Bruno Weber Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------