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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I started programming on a PDP-8 in assembly language. My first micro was an 8008 in 1974. The system was an Omron terminal that had a debugging mode so I could use a DEC-like ODT to create machine language programs. We had some 6800 development boards in the lab that I could do the same with. Then I got to design an 8080 system in 1976. I had an Intel ICE unit for development and wrote in assembler. From that I went to the Z80, 8085, and 80186 with a variety of O/S but most was CP/M. For the 80186 I wrote again in assembler and some in PL/M. There was a quick stint with the TI 9900 in there and also a 2901. Then I started doing more embedded programming with the 8041, 8042, 8048, and 8051 variants, again in assembler. Then 10 years ago I decided to try the AVR Synth and needed to buy the development system. So, for any of my smaller micro projects I have continued to use AVR. It is probably time to move on to some other core.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I always wanted to do an Intersil 6100 project so I could do PDP-8 programming again. I thought about the PDP-8 recreation but realistically what would I have done with it? I do have a Big Board and a KIM-1. Every now and then I will key in a clock program into the KIM-1 and that lasts until we have a power outage. At the vintageTEK museum we have some systems built around the Motorola 88K, 68K series, National 320XX, and some bit-slice 2901s. The latter should be one of my next repair projects.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><br>Dave<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>David J. Brown<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Modularsynthesis, LLC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Email </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="mailto:davebr@earthlink.net"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>davebr@modularsynthesis.com</span></a></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Website http://modularsynthesis.com<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p></div></body></html>