On 4 April 2017 at 20:21, Charles Dickman via cctalk <cctalk@classiccmp.org> wrote: > I have written a PDP-14 simulator using the simh framework. Paired > with a PDP-8 simulator as a front end it passes all the DEC > diagnostics. A pointless effort, perhaps, because there isn't much > that can be done with it without connecting it to something to > control. > Please release it! I/O access isn't too exceedingly complicated. I just finished up a university class on industrial controllers and networking, and we covered Modbus RTU and Modbus TCP. The latter protocol would prove to be pretty useful for this PDP-14 emulator. The emulator would act as one Modbus master and send out packets (in the Modbus TCP format) to a remote/distributed I/O unit of the user's own provision. Making it generic means it doesn't require specific hardware; making it Modbus protocol means it talks to a gigantic swath of hardware.
So, please do submit it to be merged into the SIMH framework, it sounds like fun! (And sounds like practice for writing a Modbus TCP master… to me.) Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.