Another alternative would be to build a machine up from a Field Programmable Gate Array (e.g., the Digilent Nexys2 FPGA development board). I recently completed an effort doing that for a 12 bit machine we designed and built in a logic/computer design class from racks of logic interconnected using IBM unit record plug boards in 1972.
I am going to attempt to do the same for IBM's 1410 computer - a really big effort. JRJ On 7/13/2015 12:52 AM, Kip Koon wrote: > Hi Michael, > I would be most interested in finding out more about this effort. Do you > have ongoing pictures documenting this effort? I'd love to have a PDP 8, 11, > 12 someday, but I don't have the space for something like that much less the > cost involved so I'll have to be satisfied with emulators on my PC or > eventually building one or more of these systems with current technology like > the SBC6120 if memory serves. Are there other possible alternatives? I used > a PDP-8/E in high school and college and have been quite interested in the > high capability PDPs like the PDP-11 Series for starters. I didn't know > there were PDP 12 Series computers. Are there other PDP series computers as > well? Congratulations on your restoration efforts! I wish I could see what > all you guys have been and are up to! Take care my friends. > > Kip Koon > computer...@sc.rr.com > http://www.cocopedia.com/wiki/index.php/Kip_Koon > > >> -----Original Message----- >> From: cctech [mailto:cctech-boun...@classiccmp.org] On Behalf Of Michael >> Thompson >> Sent: Sunday, July 12, 2015 7:32 PM >> To: cctech >> Subject: Re: PDP-12 at the RICM >> >> The RICM Learning Lab was nice and cool today so we spent the afternoon >> chasing the "LGP GP=GPC PRESET" in the TC12 LINCtape >> controller. With a logic analyzer connected to lots of the TC12 signals were >> were able to chase down the signal that is causing the >> fault. We are now not sure if the signal behavior we observed is the correct >> behavior, and there is a fault elsewhere. More debugging >> time and more studying of the documentation is required. >> >> >> -- >> Michael Thompson > >
