stq_u
stq_u(partial_dest | second_dest, dst);
stq_u(partial_dest, dst);
stq_u(partial_dest | second_dest, dst);
stq_u(partial_dest | second_dest, dst);
stq_u(partial_dest | second_dest, dst);
stq_u(partial_dest | second_dest, dst+1);
stq_u(partial_dest | word | second_dest, dst);