From hsanchez@inria.fr Mon Nov 20 21:27:18 1995 Path: ashpoly!cascade!brgate!saturno!inria!hsanchez From: hsanchez@inria.fr (Hana Sánchez) Newsgroups: comp.sys.m68k Subject: [FLAME] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Nov20.212718.7718@inria.fr> Date: Mon, 20 Nov 1995 21:27:18 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. I wrote a 64-tap FIR filter in pure 68k assembly using movem.l and dbra loop unrolling to downsample to 64 Hz. Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Hana Sánchez | hsanchez@inria.fr PGP Key fingerprint: D8C8 643E FA41 3468 "Keep the channels open." From tfournier@uu.net Tue Nov 21 16:46:18 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uu!tfournier From: tfournier@uu.net (Thiago Fournier) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Nov21.164618.4049@uu.net> Date: Tue, 21 Nov 1995 16:46:18 GMT References: <1995Nov20.212718.7718@inria.fr> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Nov20.212718.7718@inria.fr>, hsanchez@inria.fr (Hana Sánchez) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Thiago Fournier *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From hrobertson@panix.com Tue Nov 21 23:20:18 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!panix!hrobertson From: hrobertson@panix.com (Hana Robertson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Nov21.232018.1979@panix.com> Date: Tue, 21 Nov 1995 23:20:18 GMT References: <1995Nov20.212718.7718@inria.fr> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Nov20.212718.7718@inria.fr>, hsanchez@inria.fr (Hana Sánchez) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Hana Robertson "Hold for relay." Sun 3/60 (SunOS 4.1.1) / SunOS 4.1.4 From mnovak@netcom.com Wed Nov 22 18:26:18 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!netcom!mnovak From: mnovak@netcom.com (Mike Novak) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Nov22.182618.3876@netcom.com> Date: Wed, 22 Nov 1995 18:26:18 GMT References: <1995Nov20.212718.7718@inria.fr> <1995Nov21.164618.4049@uu.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Nov21.164618.4049@uu.net>, tfournier@uu.net (Thiago Fournier) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Mike Novak | mnovak@netcom.com PGP Key fingerprint: 8F3B 9040 1784 9049 "Keep the channels open." From msouza@demon.co.uk Fri Nov 24 04:38:18 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!msouza From: msouza@demon.co.uk (Mei Souza) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Nov24.043818.4573@demon.co.uk> Date: Fri, 24 Nov 1995 04:38:18 GMT References: <1995Nov20.212718.7718@inria.fr> <1995Nov21.232018.1979@panix.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Nov21.232018.1979@panix.com>, hrobertson@panix.com (Hana Robertson) writes: > Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. If you are posting from AOL, please read RFC 1036 before posting again. -- Mei Souza Tape trading list upon request. SASE required for international mail.