[RFA] Fix for mcore simulator

[Nick Clifton]

Hi Jeff,

> This patch makes the shift count automatically adjust based on the size of the temporary.  It includes a simple test for sextb and sexth.  I have _not_ done a full audit of 
> the mcore simulator for more 32->64 bit issues.
> 
> This also fixes 443 execution tests in the GCC testsuite ;-)

Yay!

> OK for the trunk?

No - because the sim sources are part of GDB not the binutils, so
you need to post the patch to their mailing list.

But if it helps I would definitely recommend that they approve the patch. :-)

Cheers
   Nick