tree 46e3548993a2df3231b8ef5d5c087fa72e54f934
parent 1414968a6aecd23cb037bc9e718d6f05ead2afaf
author Peter Crosthwaite <peter.crosthwaite@petalogix.com> 1350378950 +1000
committer Aurelien Jarno <aurelien@aurel32.net> 1350496606 +0200

target-arm/translate: Fix RRX operands

Instructions that both use the RRX second operand and update CS were
incorrect, as the Carry flag was updated too early. An example of such an
instruction would be:

ands r12,r13,RRX

Ands, because of the "s" flag will update the carry flag. But the RRX second
operand rotates through the C flag which should happen before the update.
Fixed the ordering of the two, the old carry is read by "r13,RRX" before being
updated.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reported-by: Vinesh Peringat <vineshp@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>