[PATCH][GAS][ARM] Fix disassembly of strht

[Kyrylo Tkachov]

Hi all,
gas disassembles a form of the strht ARM instruction improperly:

strht r0, [r1], -r2 @ assembles to E02100B2
@ disassembles as "strh r0, [r1], -r2 ; UNPREDICTABLE"
strht r0, [r1], r2 @ assembles to E0A100B2
@ disassembles as "strh r0, [r1], r2 ; UNPREDICTABLE"

This patch fixes that. New tests are added for that case, and also for the
similar ldrht instruction.

Ok for trunk?

Thanks,
Kyrill

opcodes/ChangeLog

2013-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* arm-dis.c: Add another pattern for strht.


gas/testsuite/ChangeLog

2013-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* gas/arm/archv6t2.s: Add strht and ldrht tests.
	* gas/arm/archv6t2.d: Add disassembly patterns for the above.
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