SIM: PATCH: RFA: Rotate semantics for cgen sims

[Doug Evans]

Dave Brolley writes:
 > This patch adds RORQI, ROLQI, RORHI and ROLHI to
 > sim/common/cgen-utils.c. These functions enable rotate semantics
 > for QI and HI modes.
 > 
 > OK to commit?
 > 
 > Dave2000-09-26  Dave Brolley  <brolley@redhat.com>
 > 
 > 	* cgen-utils.c (RORQI): New function.
 > 	(ROLQI): New function.
 > 	(RORHI): New function.
 > 	(ROLHI): New function.

fine here.