Re: [patch] mips-tdep: info registers

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 22 Feb 2009 19:00:14 -0800
> From: Joel Brobecker <brobecker@adacore.com>
> 
> > > Surprisingly, this feature is not documented yet. The documentation
> > > mentions "info registers regname", but not "info registers regno".
> > > Would you mind adding a line or two and sending a (separate) patch
> > > to this list? Eli is the documentation guru...
> > 
> > Should this feature even exist?  This is a different "$1" than
> > anywhere else in GDB you might type that...
> 
> I was asking myself this question, but there is explict code in
> GDB to handle that case, so I thought that this was deliberate.
> On the other hand, I also thought that this was a very cool way
> of knowing what register number NUM actually is. For instance,
> on x86, register number 3 is (drums...) ebx:
> 
>     (gdb) info reg $3
>     ebx            0xb7e84ff4       -1209511948
> 
> With x86, the number of registers is fairly limited, but there
> are other processors where this isn't the case. The CPU that gave
> me the largest number of pimples so far is ia64...
> 
> So I found that the above syntax was a cool thing to know about
> and worth retaining.

I agree.  Documenting it would be good, thanks.