Sun, 23 Oct 2011, 20:57

A student writes with a question about getting information from locations
far away from his code:

> Hi, Dr. Patt,
> If you are reading this question after Sunday, feel free 
> to ignore it.

You mean after the deadline, you do not want to know how to do this?

> I was wondering how I can load a value and/or address from a memory location
> that is far away from the address of the instruction? For example, in this
> lab we are loading the value from x3200 to compare it with other values. The
> LD instruction requires a label, but I don't know how to label x3200. Same
> question goes for storing.

Why do you need to label x3200.   Recall the problem we worked in class.
Same concept:

                  LD R3, PTR

                        ...

                  PTR   .FILL  x3200


Got it?

> Thanks for your help.
> <<name withheld to protect the student who loses interset tonight at 11:59pm>>

Your welcome.
Yale Patt