From bweber@stanford.edu Wed Jan 10 22:12:38 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!stanford!bweber From: bweber@stanford.edu (Bill Weber) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan10.221238.4391@stanford.edu> Date: Wed, 10 Jan 1996 22:12:38 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- === Bill Weber === Dept of Electrical Engineering, Stanford University Computer Systems Lab "Tape doesn't lie at 02:14. Ears do." From bwatanabe@purdue.edu Fri Jan 12 04:07:38 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!bwatanabe From: bwatanabe@purdue.edu (Brian Watanabe) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan12.040738.3548@purdue.edu> Date: Fri, 12 Jan 1996 04:07:38 GMT References: <1996Jan10.221238.4391@stanford.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Jan10.221238.4391@stanford.edu>, bweber@stanford.edu (Bill Weber) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Brian Watanabe "Row 14. No joke." PC-9821Ap2 (NEC) / AmigaOS 3.1 From csanchez@u-tokyo.ac.jp Sat Jan 13 02:46:38 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!u-tokyo!csanchez From: csanchez@u-tokyo.ac.jp (Callum Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan13.024638.9836@u-tokyo.ac.jp> Date: Sat, 13 Jan 1996 02:46:38 GMT References: <1996Jan10.221238.4391@stanford.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Jan10.221238.4391@stanford.edu>, bweber@stanford.edu (Bill Weber) 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. -- Callum Sánchez | csanchez@u-tokyo.ac.jp PGP Key fingerprint: 473F 3444 111F FF9E "Keep the channels open." From lmoreno@cmu.edu Sat Jan 13 18:32:38 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!cmu!lmoreno From: lmoreno@cmu.edu (Lisa Moreno) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan13.183238.1582@cmu.edu> Date: Sat, 13 Jan 1996 18:32:38 GMT References: <1996Jan10.221238.4391@stanford.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Jan10.221238.4391@stanford.edu>, bweber@stanford.edu (Bill Weber) 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. -- Lisa Moreno Tape trading list upon request. SASE required for international mail.