)( COCO-TRACKER for 6809 )( by John Kowalski (Sock Master) May 24, 1996. Prepare to be even more amazed! As of now, something that even I thought to be entirely impossible on a regular (non 6309) CoCo3, is not just possible but now an actual reality! What is it? It's a MOD file player! MOD files aren't new, they've been around for years. They originated on the Amiga and were pretty much designed around the Amiga's sound hardware. Pretty soon there were players for the Atari ST, and then finally also on the PC and Mac. All these computers are at least 16 bit, have at least 8Mhz processors and usually special audio hardware. MOD files have become a sort of generic song file that can be played on many different kinds of computers, but until now, no 8 bit computer has ever been able to play them. Through the magic of creative programming, long hours writing and rewriting code until it's as fast as can be, and more hours figuring out how to decode MOD files...etc... (you get the idea), a new technical achievement has been accomplished. It's COCOTRACKER - the very first MOD file player on the CoCo. This version of CocoTracker is actually a port of my original 6309 version. Because of some breakthroughs that I had with the 6309 version, I've decided that it could also be done on a regular CoCo3. It has all the features of the 6309 version, except Orchestra-90 support, and I've eliminated a small aspect of the video display for speed considerations. As expected though, the 6809 version doesn't perform quite as well as the 6309 version. The audio playback is a little rougher because of the lower sampling rate, and the oscilloscope runs a bit slower too - but you can speed up the oscilloscope by shrinking it's size or lowering the selectable sampling rate. It's pretty much a small miracle that this can be done at all! COCOTRACKER is still in development, but it's finally starting to look good! Out of the many MOD files I've tested with it, it only completely messed up playing one (it plays, but it sounds all wrong). The majority of the MOD files I've tried sound okay. I'll add better decoding of MOD files in future versions and hopefully fix playback with any problem files. Requirements: *You NEED a CoCo 3. *512K is preferred, but you ought to be able to play really small MOD files with 128k of RAM. *RSDOS will do, but this makes it hard for you to save larger than 153K MOD files. CoCoTracker now patches vanilla RSDOS1.1 to be able to read 80 tracks and double sided disks - but you till have to find another way to actually SAVE your MOD files in that format. *The program boots up in RGB colors, but if you have a TV and don't mind funny colors you can still use CocoTracker. I've uploaded these files to FTP://os9archive.rtsi.com/RSDOS/MODS/ MOD6809.TXT (ASCII TEXT) MOD6809.BAS (BASIC ASCII) MOD6809.BIN (MACHINE BINARY) You'll need to download some MOD files too to try the program out so I'll put a few of those there too. Remember to *quickly* read the shareware notice when the player screen pops up. (The notice only stays on the screen very briefly.) The idea is that if you like the program, then please send 10$ to : John Kowalski 4885 Legion street St-Hubert, Quebec, Canada J3Y 1Z3 Enjoy the program. Please send any comments to Twilight@axess.com John Kowalski (Sock Master)