<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Peter,<div class=""><br class=""></div><div class="">As the Oberheim, Sequential Circuits and Oberheim were Z-80 based, we programmed the code in assembly. At PPG, we used Motorola 6809 and used the Flex OS for the 6809 and some assembly code too.</div><div class=""><br class=""></div><div class="">Basic would not have worked back in those times as memory limits , performance etc.</div><div class=""><br class=""></div><div class="">My eprom programmer is my E-Mu Audity CPU board, we only built one Audity Synth system, which is also Z-80 based. The OS on the Z-80 system is using the RIO OS for the ZDS-125 Zilog dev. system we hacked. The Emulator 1 and Emulater 2 were also using this OS.</div><div class=""><br class=""></div><div class="">Mind you that this computer has Dual 8” floppy drives. I have not powered it up in over 15 years. Not sure if it will boot or not. It was working when I put it into the closet.</div><div class=""><br class=""></div><div class="">It will also run C/PM OS and we used them at E-mu for our accounting and word processing computers. I believe I built about 6 systems for Marketing and Engineering.</div><div class=""><br class=""></div><div class="">Does any of this old info help?</div><div class=""><br class=""></div><div class="">best regards,</div><div class=""><br class=""></div><div class="">Terry<br class=""><div><blockquote type="cite" class=""><div class="">On Jun 16, 2016, at 4:05 PM, Peter Pearson <<a href="mailto:electrocontinuo@gmail.com" class="">electrocontinuo@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Yeah there would probably be some brute force involved but hi-res board scans paired with searchable schematics would be pretty bad ass. That paired with a wiki for eprom images, sysex files, etc all in one place would be a very worthy endeavor. Something a la:<div class=""><br class=""></div><div class=""><a href="http://www.mess.org/" class="">http://www.mess.org/</a><br class=""></div><div class=""><br class=""></div><div class="">or</div><div class=""><br class=""></div><div class=""><a href="http://stackoverflow.com/" class="">http://stackoverflow.com/</a><br class=""></div><div class=""><br class=""></div><div class="">We have the technology.</div><div class=""><br class=""></div><div class="">Terry, thanks so much for your input! During the Oberheim days, were you mostly programming those in BASIC, assembly, or some other format?</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Thu, Jun 16, 2016 at 2:21 PM, Christian Tecl <span dir="ltr" class=""><<a href="mailto:chrystalclear@gmx.de" target="_blank" class="">chrystalclear@gmx.de</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello Synthheads, <br class="">
as a newbie in this list, I would like to say hello to you all. I am freaking happy that there are others out there that share their thoughts and experiences to just anyone who wants it. By the way: Thanks Terry, you seem to be someone I'd really like to talk to for a while. I'm based in germany, so that might be a long therm wish........ but you'll never know. As an electronics student and former electronic musician, it's my goal to build my very own synthesizer, with everything done on my own... That is the plan I have in mind, so learning synthesizer theory and examining construction of already buildet instruments (and the thoughts and solutions of them) is my dirty hobby right now. So if we could share some thoughts I would be very much appreciated. For this I am of course also very interested in data for ic's, in plans of instruments and good literature about that topic. <br class="">
Thanks to all u nice guys n gals. <br class="">
Greetings<span class="HOEnZb"><font color="#888888" class=""><br class="">
Christian Tecl <br class="">
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