AVR-Chat

Ahmad El-Saied wrote:

> hi all,
> 	I've a register1 containing the address of another
> register2  that i dont know (suppose its entered by
> keys) & i need to get the contents of that register2.
> 
> 	plz help me about this
>                    Ahmad El-Saeed

You didn't state if you are working in assembly or C but it sounds you're
working at the assembly level.

The registers are mapped to the bottom of the ram address space so
something like:

     mov   r30, r16     ; assumes r16 has reg2 address (is reg1)
     clr   r31          ; r31:r30 now points to reg2
     ld    r18, Z       ; content of reg2 -> r18

will do the trick.

Bruce