From ksokolov@mindspring.com Fri Apr 12 19:32:32 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!ksokolov From: ksokolov@mindspring.com (Kenji Sokolov) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr12.193232.3766@mindspring.com> Date: Fri, 12 Apr 1996 19:32:32 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 11 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! -- === Kenji Sokolov === Dept of Electrical Engineering, MindSpring Enterprises "Hold for relay." From mrodriguez@ox.ac.uk Sun Apr 14 19:19:32 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!ox!mrodriguez From: mrodriguez@ox.ac.uk (Mei Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr14.191932.3620@ox.ac.uk> Date: Sun, 14 Apr 1996 19:19:32 GMT References: <1996Apr12.193232.3766@mindspring.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Apr12.193232.3766@mindspring.com>, ksokolov@mindspring.com (Kenji Sokolov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Mei Rodríguez US Robotics Courier V.34 @ 14,400 bps "5 sigma is a discovery. 7 is a question."