Asian-Pacific markets were mixed Wednesday as many investors waited on the sidelines for the outcome of talks aimed at averting a default on U.S. debt. Japan's Nikkei 225 edged up 0.2%. Hong Kong's Hang Seng Index fell 0.5%. Australia's S&P/ASX 200 added 0.1%. China's Shanghai Composite dropped 1.8%. South Korea's Kospi slid 0.3%. India's Sensex was down 0.3%.