PDP 11/45 Display register.

[Jim Beacon]

Hi,

A quick question raised by my ongoing work....

Is it possible to write directly to the "display register" - the one
accessed by one position of the data switch. I think it should be at memory
location 777570, but I can't get data into it, either using deposit from the
console, or moving data under program control.

Have I got a fault, or am I doing something wrong?

Thanks

Jim.

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