Earnings reports from Ford F.N, Coca-Cola KO.N, McDonald's MCD.N and Boeing BA.N are due later in the day. By Tom Westbrook SINGAPORE, Oct 27 (Reuters) - Asian stocks slipped on Wednesday with new regulatory worries sparking the steepest sell-off in seven weeks for Chinese tech shares, while short-term Treasury yields spiked as investors wagered on inflation pulling forward interest rate rises. In China, besides a further tightening of rules over online access for the young, energy stocks suffered with new measures to curb zooming coal prices CZCcv1 which also dropped 10% and have fallen 40% from record peaks.