PDP-11/23 Debugging

tony duell ard at p850ug1.demon.co.uk
Thu Nov 20 13:28:27 CST 2014

[Logic analyser]

> I don't have one, though I'm looking into getting one to help with a 6502
> home-brew project.

Do you have a simple logic probe? If you disable the LTC interrupt for the moment then the console
port should be the only thing generating interrupts. You can see if it is asserting bus request, if the 
grant is getting back to it, if it's then trying to do an interrupt cycle, etc


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