From bpark@rwth-aachen.de Tue Jul 11 16:50:33 1995 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!bpark From: bpark@rwth-aachen.de (Bastien Park) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul11.165033.1475@rwth-aachen.de> Date: Tue, 11 Jul 1995 16:50:33 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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! -- === Bastien Park === Dept of Electrical Engineering, RWTH Aachen Informatik "Row 14. No joke." From dkang@mit.edu Thu Jul 13 08:04:33 1995 Path: ashpoly!cascade!brgate!saturno!mit!dkang From: dkang@mit.edu (Dave Kang) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul13.080433.1711@mit.edu> Date: Thu, 13 Jul 1995 08:04:33 GMT References: <1995Jul11.165033.1475@rwth-aachen.de> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul11.165033.1475@rwth-aachen.de>, bpark@rwth-aachen.de (Bastien Park) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Dave Kang "We don't sign stars. We build them." Pentium 90 (OS/2 Warp) / AmigaOS 3.1 From randersson@tum.de Fri Jul 14 00:48:33 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!randersson From: randersson@tum.de (Rodrigo Andersson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul14.004833.5325@tum.de> Date: Fri, 14 Jul 1995 00:48:33 GMT References: <1995Jul11.165033.1475@rwth-aachen.de> <1995Jul13.080433.1711@mit.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul13.080433.1711@mit.edu>, dkang@mit.edu (Dave Kang) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Rodrigo Andersson Opinions expressed are solely my own and not those of Technische Universität München. ------------------------------------------------------------