From bpopov@kiae.su Mon May 27 09:56:10 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!kiae!bpopov From: bpopov@kiae.su (Bruno Popov) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May27.095610.1321@kiae.su> Date: Mon, 27 May 1996 09:56:10 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Bruno Popov *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0 From sweber@demon.co.uk Tue May 28 17:43:10 1996 Path: ashpoly!cascade!bigsur!demon!sweber From: sweber@demon.co.uk (Sergei Weber) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May28.174310.6289@demon.co.uk> Date: Tue, 28 May 1996 17:43:10 GMT References: <1996May27.095610.1321@kiae.su> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May27.095610.1321@kiae.su>, bpopov@kiae.su (Bruno Popov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Sergei Weber Tape trading list upon request. SASE required for international mail.