On 8/13/2010 8:07 PM, K1TTT wrote:

Favorite assy was 6809. Did a lot on the Ericsson MD110 while writing
patches.

tom
K0TAR

yeah, pdp8 was 12 bit, everything in octal instead of hex. i did a
lot of 6809 stuff on a ratshack coco machine, amazing what you could
make that box do once you got inside it. had one doing fax, rtty, 4
channel music synthesizer, and running a dialup bulletin board even
before aol started sending out floppies. and i built an 8080 based
desktop computer from scratch in 1977, all of 2k of ram and a hex
keypad to load the programs from manually or from cassette tapes!

I ran OS/9 on my CoCo. I had dual 5 1/4 inch drives, woohoo! Also got
a couple things published in Hot CoCo if you remember that mag.

OS/9 was great. Developed by Motorola as a micro based Unix type O/S.
I heard it was parallel developed with the 6809 chip with feedback
between the 2 teams. It was very fast and very small. Kicked the IBM
PC's butt with one fifth the clock speed. As you may know, the 6809 was
about as much 16 bit as it was 8, which was probably part of the reason why.

And I still have all of the bits. Haven't fired them up in maybe 15
years. I wonder if the disks will still read.

tom
K0TAR