Hi

Try
 MOVWF    INDF ; Now I try to move W into the address in PTR
 -- END ASM CODE --

Dave


>
----- Original Message ----- 
From: "Metis Adrastea" <metisadrastea@gmail.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Thursday, September 28, 2006 2:38 PM
Subject: [PIC]Basic (I think) pointers in asm


> Hello all piclisters!
>
> I've tried to solve this problem by myself, as I think the solution
> should be trivial, but I've spent all my free time this week on this
> issue and I now feel that I can't solve this by myself; so, there goes
> my code snippet:
>
> -- BEGIN ASM CODE --
> ; I initialise some variables like those below:
>
> var_a    equ   020H
> var_b    equ   021H
> var_c    equ   022H
> ...
> var_g    equ   026H
>
> DATA    equ   030H
> PTR      equ   031H
>
> ; Then, I load a value into DATA
> MOVLW    0x69 ; Great number :-)
> MOVWF    DATA
> MOVLW    0x21 ; This is the address where I want to put the 0x69 in (ie, 
> var_b)
> MOVWF    PTR
>
> MOVF    DATA,W ; Ok, I load the value in DATA into W
> MOVWF    PTR ; Now I try to move W into the address in PTR
> -- END ASM CODE --
>
> Obviously, this doesn't work because the last instruction (movwf ptr)
> moves W into _the address of_ PTR (ie 0x31) and not into 0x21. Have to
> say that in the real application the value of PTR is dynamic, so it
> isn't as easy as putting "movwf var_b".
>
> Any ideas?
>
> Thanks in advance
>
> Metis Adrastea
> -- 
> He comentado ya que tengo un blog? O:-)
> http://metisadrastea.blogspot.com/
> -- 
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