> Hmm,
> 
> (I think I might split this in two)
> 
> The attached adds the methods:
> 
> +extern void frame_read_signed_register (struct frame_info *frame,
> +                                       int regnum, LONGEST *val);
> +extern void frame_read_unsigned_register (struct frame_info *frame,
> +                                         int regnum, ULONGEST *val);
> 
> These correspond to the frame_unwind_XXXX methods() except that they return the value of a register in THIS frame rather than the value of the register in the PREVIOUS frame.
> 
> They are simply convenience functions to make it easier to obtain a specified frame's register value.
> 
> Thoughts?

I've checked in the attatched.  The additional comment and assertion 
should address the questions DanielJ raised.

Andrew