PDP 11/45 Display register.

[Tony Duell]

> 
> Hi,
> 
> A quick question raised by my ongoing work....
> 
> Is it possible to write directly to the "display register" - the one

YEs, it certainly is. I've done it many times.

> 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.

I can't rememebr if you can deposit to it from the console, you can 
certainly write to it from a program. The address is the same as the one 
you read to read the state of the switches -- 777570 sounds right.

-tony