From mmoreau@netcom.com Mon Oct 24 16:01:08 1994 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!mmoreau From: mmoreau@netcom.com (Marisol Moreau) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Oct24.160108.8263@netcom.com> Date: Mon, 24 Oct 1994 16:01:08 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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. -- Marisol Moreau -- NETCOM On-Line Communication Services "They will send a copy in my place." From bito@mindspring.com Wed Oct 26 17:19:08 1994 Path: ashpoly!cascade!bigsur!mindspring!bito From: bito@mindspring.com (Bruno Ito) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Oct26.171908.8671@mindspring.com> Date: Wed, 26 Oct 1994 17:19:08 GMT References: <1994Oct24.160108.8263@netcom.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Oct24.160108.8263@netcom.com>, mmoreau@netcom.com (Marisol Moreau) 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 Ito -- MindSpring Enterprises "The hatch is open. Is anyone listening?"