11/45 front panel question
wacarder at usit.net
Tue Mar 1 14:43:54 CST 2005
> ok, two questions. In at least the docs I have (11/45 service manual, user
> manual, and handbook), I can't find a clear description of how to toggle a
> program into memory.
> I'm assuming that when you enter an address in the front panel switches
> hit "load addrs", that the data lights aren't supposed to automatically
> the data value at that location. I'm assuming you must hit "exam" first.
> this correct? If not, I'd be autoincrementing and seeing the next data
> value. Can someone give me a good example of just how to enter two or
> words starting at a given location? I think I can figure this out, but I'd
> rather be sure so I don't skip over something that isn't working
> Second, since it's been over 20 years since I did any MACRO-11
> could someone post a simple few line machine code program I can enter and
> run to see if the machine will even go into execute mode correctly. Maybe
> something that just adds two constants and stores them in another memory
Jay, I am going to post an email that Guy sent me when I was getting my
11/40 up and running. We can call it "PDP-11 program toggling for dummies"
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