Perform nextPC/branchTarget setup as a part of postOp - more scope for runtime to optimise
Perform nextPC/branchTarget setup as a part of postOp - more scope for runtime to optimise

matthewbauer/n64js,beni55/n64js,matthewbauer/n64js,beni55/n64js,hulkholden/n64js,hulkholden/n64js