CUBIX/6809 updates

Hi Tom, I've got 4-5 different homebuilts running CUBIX, ranging from the Portable pictured on my web page (integrated keyboard/video, dual disks, "full load" of RAM, several serial ports and other peripheral devices) to really stripped down systems which can be constructed from a (fairly small) handful of parts and using a serial connection for the console. This has been around since the mid-80's and over the years a number of other people have built up CUBIX systems as well. There has been talk of porting it to the CoCo, however I never got into the CoCo enough to bother (too "packaged" for my liking :-), and I am not aware of anyone else who has done so. There is also of course the D6809 simulator (on my site) which will let you run the system on any PC / DOS compatible environment. In response to some interest I posted a bit of information about the CUBIX OS a week or two ago here in the list, search the archives and you should find it (or I can send it to you). To quickly summarize: CUBIX is the software portion of a completely self designed system I did in the 80's. Don't let the "homegrown" origin fool you, It was my main system for several years, and I did offer it as a product. It iis fully mature and well documented. A very brief summary of the features: - Designed to be VERY portable and hardwre independant. Requires no more than a TTY type console and can deal with virtually any disk hardware and media geometry (in fact, you can reconfigure the I/O devices and disk geometry "on the fly" in a running system. Many CUBIX system can be ported simply by patching the hardware dependant initialization and driver portion of the ROM image (no mucking around with OS source code required - although this is also available). - High functionality - main OS is ROM resident (8K) and provides well over 100 system calls/services. Has a full featured file system, command shell and supports "batch" command files. - Decent command interface, somewhat VMSish in feel. Includes a couple dozen utilities and applications including pretty much all the sytem/disk/file management tools you need, several editors, assembler, BASIC, FORTH, Micro-APL, C compiler and even an 8080 simulaltor which I used to quickly port over much of my Altair code when I switched over to this as my main system. - Lots of documentation (user & technical) and a nice little online HELP command which gives all the basic/essential information to use the system. Don't want to waste more bandwidth here as I just posted this information a little while ago. Much more information can be obtained from my site (URL in sig below) - scroll down to "D6809" under "Homebuilts" and you will find lots of info. All of the documentation (.TXT files) is posted directly on the web page, and also included with the simulator (as is the disk images etc.). Highly recommended as a "fun project" if you like the idea of building a functional and unique computer (note: I mean really building, not "putting a PC board in a box"). If you have questions after all that, I am happy to answer them. If there is enough interest, I would also consider putting together a page specifically about CUBIX and building a machine to run it Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html