RE: [avr-gcc-list] inline assembler, ijmp, X-Register

[Dave Hansen]

From: Torsten Mohr <address@hidden>
[...]
> i have a functionpointer that is located in the variable fptr:
>
> uint32_t fptr;
>
> I'd now like to jump to that location.
>
> From the avr-libc-user-manual-1.2.3 i thought i'd need to put it like this:
>
> asm("ijmp":: "x" (fptr / 2));

Just a guess, because I don't have my inline assembly crib sheet handy, and 
I don't have time to try it right now...

Don't you need a %0 in there somewhere, e.g.

  asm("ijmp %0"::"x" (fptr/2));

Just another guess:  What happens if you do something like

  uint16_t fptr2 = fptr/2;
  asm("ijmp":: "x" fptr2);

HTH,
  -=Dave