Re: [RFA/alpha] Add handling of FP control insn in software-single step (second try)

[Daniel Jacobowitz <drow@false.org>]

On Fri, May 20, 2005 at 11:20:55AM +1000, Joel Brobecker wrote:
> This is a rework of:
> 
>         http://sources.redhat.com/ml/gdb-patches/2005-05/msg00405.html
> 
> Hopefully this patch will be more acceptable.
> 
> 2005-05-17  Joel Brobecker  <brobecker@adacore.com>
> 
>         * alpha-tdep.c (fp_register_zero_p): New function.
>         (fp_register_sign_bit): New function.
>         (alpha_next_pc): Add support for floating-point control instructions.
> 
> Tested on alpha-tru64 5.1a with no regression. I'll try to contribute
> an asm test asap.
> 
> One remark: For zero_mask in fp_register_zero_p(), Richard suggested
> to use "((LONGEST) 1 << 63) - 1", but that triggered an overflow warning
> from GCC. So I reverted to using the xor binary operator. Daniel said
> that many things would break in GDB with 128-bit types, so I think the
> xor is quite acceptable for now.
> 
> OK to commit?

I was just waiting for Richard to OK the actual implementation.  This
is fine, thank you.

-- 
Daniel Jacobowitz
CodeSourcery, LLC