From vpetrov@mindspring.com Thu Jun 27 04:38:52 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!vpetrov From: vpetrov@mindspring.com (Valeria Petrov) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun27.043852.3599@mindspring.com> Date: Thu, 27 Jun 1996 04:38:52 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- === Valeria Petrov === Dept of Electrical Engineering, MindSpring Enterprises "When every node is whole, the channel opens." From nhughes@illinois.edu Thu Jun 27 14:57:52 1996 Path: ashpoly!cascade!mxgate!coyoacan!illinois!nhughes From: nhughes@illinois.edu (Nadine Hughes) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun27.145752.2603@illinois.edu> Date: Thu, 27 Jun 1996 14:57:52 GMT References: <1996Jun27.043852.3599@mindspring.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Jun27.043852.3599@mindspring.com>, vpetrov@mindspring.com (Valeria Petrov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Nadine Hughes | nhughes@illinois.edu PGP Key fingerprint: E362 152F EB47 07BF "Keep the channels open." From rkarlsson@pipeline.com Fri Jun 28 02:51:52 1996 Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!rkarlsson From: rkarlsson@pipeline.com (Rodrigo Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun28.025152.6652@pipeline.com> Date: Fri, 28 Jun 1996 02:51:52 GMT References: <1996Jun27.043852.3599@mindspring.com> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Jun27.043852.3599@mindspring.com>, vpetrov@mindspring.com (Valeria Petrov) 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. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Rodrigo Karlsson SupraFAXModem 28.8 @ 33,600 bps "Extraordinary claims require extraordinary spectra." From jfischer@inria.fr Sat Jun 29 19:40:52 1996 Path: ashpoly!cascade!transat!ukc!fennimore!inria!jfischer From: jfischer@inria.fr (Jens Fischer) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun29.194052.5643@inria.fr> Date: Sat, 29 Jun 1996 19:40:52 GMT References: <1996Jun27.043852.3599@mindspring.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Jun27.043852.3599@mindspring.com>, vpetrov@mindspring.com (Valeria Petrov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Jens Fischer *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0