From ssmirnov@stanford.edu Sun Jul 03 16:45:13 1994 Path: ashpoly!cascade!bigsur!stanford!ssmirnov From: ssmirnov@stanford.edu (Sven Smirnov) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jul03.164513.6808@stanford.edu> Date: Sun, 03 Jul 1994 16:45:13 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. By setting up Paula's audio DMA to double-buffer incoming 8-bit samples, the 68020 has plenty of cycles left for the Costas loop. The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Sven Smirnov | ssmirnov@stanford.edu PGP Key fingerprint: D273 09F0 24D7 21C4 "Keep the channels open." From avasiliev@berkeley.edu Mon Jul 04 03:25:13 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!avasiliev From: avasiliev@berkeley.edu (Andrei Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jul04.032513.2316@berkeley.edu> Date: Mon, 04 Jul 1994 03:25:13 GMT References: <1994Jul03.164513.6808@stanford.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Jul03.164513.6808@stanford.edu>, ssmirnov@stanford.edu (Sven Smirnov) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. -- Andrei Vasiliev Tape trading list upon request. SASE required for international mail. From mmoreno@unam.mx Tue Jul 05 18:14:13 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!unam!mmoreno From: mmoreno@unam.mx (Mei Moreno) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jul05.181413.2267@unam.mx> Date: Tue, 05 Jul 1994 18:14:13 GMT References: <1994Jul03.164513.6808@stanford.edu> <1994Jul04.032513.2316@berkeley.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Jul04.032513.2316@berkeley.edu>, avasiliev@berkeley.edu (Andrei Vasiliev) writes: > Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Mei Moreno Tape trading list upon request. SASE required for international mail. From msouza@hanse.de Thu Jul 07 13:03:13 1994 Path: ashpoly!cascade!mxgate!coyoacan!hanse!msouza From: msouza@hanse.de (Matthias Souza) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jul07.130313.8127@hanse.de> Date: Thu, 07 Jul 1994 13:03:13 GMT References: <1994Jul03.164513.6808@stanford.edu> <1994Jul04.032513.2316@berkeley.edu> <1994Jul05.181413.2267@unam.mx> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul05.181413.2267@unam.mx>, mmoreno@unam.mx (Mei Moreno) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Matthias Souza Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg. ------------------------------------------------------------ From tsmirnov@mit.edu Fri Jul 08 05:03:13 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!tsmirnov From: tsmirnov@mit.edu (Thiago Smirnov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jul08.050313.4761@mit.edu> Date: Fri, 08 Jul 1994 05:03:13 GMT References: <1994Jul03.164513.6808@stanford.edu> <1994Jul04.032513.2316@berkeley.edu> <1994Jul05.181413.2267@unam.mx> <1994Jul07.130313.8127@hanse.de> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Jul07.130313.8127@hanse.de>, msouza@hanse.de (Matthias Souza) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Thiago Smirnov Opinions expressed are solely my own and not those of Massachusetts Institute of Technology. ------------------------------------------------------------