[PATCH] gas/metag: Make SWAP instruction less permissive with its operands

[nick clifton]

Hi Markos,

> gas/ChangeLog:
> 2013-01-29  Markos Chandras<markos.chandras@imgtec.com>
>
>    * config/tc-metag.c: Make SWAP instruction less permissive with its operands.
>
> gas/testsuite/ChangeLog:
> 2013-01-29  Markos Chandras<markos.chandras@imgtec.com>
>
>    * gas/metag/metacore21-invalid.s: Add invalid SWAP testcases
>    * gas/metag/metacore21-invalid.l: Add expected output for invalid SWAP testcases

Approved and applied.

Cheers
   Nick