From smoreno@mit.edu Sat Dec 28 20:51:46 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!smoreno From: smoreno@mit.edu (Sergei Moreno) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Dec28.205146.8483@mit.edu> Date: Sat, 28 Dec 1996 20:51:46 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Anyone running this on a Quadra 840AV with the 68040? -- Sergei Moreno Tape trading list upon request. SASE required for international mail. From bweber@kth.se Mon Dec 30 15:00:46 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!bweber From: bweber@kth.se (Bruno Weber) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Dec30.150046.3883@kth.se> Date: Mon, 30 Dec 1996 15:00:46 GMT References: <1996Dec28.205146.8483@mit.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Dec28.205146.8483@mit.edu>, smoreno@mit.edu (Sergei Moreno) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Bruno Weber -- Royal Institute of Technology, Stockholm "Extraordinary claims require extraordinary spectra." From tkuznetsov@purdue.edu Wed Jan 01 06:03:46 1997 Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!tkuznetsov From: tkuznetsov@purdue.edu (Tomas Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1997Jan01.060346.5587@purdue.edu> Date: Wed, 01 Jan 1997 06:03:46 GMT References: <1996Dec28.205146.8483@mit.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Dec28.205146.8483@mit.edu>, smoreno@mit.edu (Sergei Moreno) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Tomas Kuznetsov *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0