dolphin-emu/dolphin — pull request #1671 by Tilka (2014-12-07 23:17:08+00:00)
Title: Interpreter: fix carry of subfic

As [reported by @PetMac on Twitter](https://twitter.com/PetMac/status/477571195538522112), the carry flag needs to be set before RD for the case where RA == RD. Additionally, the carry calculation was wrong in itself.