[PATCH] x86: suppress emission of zero displacements in memoryoperands

[H. J. Lu]

On Fri, Jul 14, 2006 at 11:03:38AM -0600, Clifford T. Matthews wrote:
> Howdy,
> 
> I'm a little over a year late to the discussion, but it was only
> yesterday that I figured out that I was being bitten by a change that
> was made in May of 2005.
> 
> Syn68k is software (written by Mat Hostetter) that dynamically
> translates 68k assembly to x86 assembly.  It doesn't want to invoke a
> full-blown assembler as it does its work, so instead, at build time,
> it uses gas to compile a whole bunch of templates and figure out the
> significance of the bits that get created.
> 
> Starting with binutils-2.16.90.0.3, instructions like
> 
>     lea 0x0(%eax),%eax
> 
> began compiling into the exact same byte sequence as
> 
>     lea (%eax),%eax
> 

I have been thinking to use 0x0B, 0x0W, 0x0L to indicate the size
of displacements.


H.J.